10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

 FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission file number 001-35877

HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

(Exact name of registrant as specified in its charter)

Maryland		46-1347456
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
1906 Towne Centre Blvd Suite 370		21401
Annapolis,	Maryland
(Address of principal executive offices)		(Zip code)

(410) 571-9860

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value per share	HASI	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

Indicate the number of shares outstanding of each of the issuer’s classes of common stock as of the latest practicable date: 84,693,740 shares of common stock, par value $0.01 per share, outstanding as of November 3, 2021 (which includes 197,256 shares of unvested restricted common stock).

FORWARD-LOOKING STATEMENTS

We make forward-looking statements in this Quarterly Report on Form 10-Q (“Form 10-Q”) within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are subject to risks and uncertainties. For these statements, we claim the protections of the safe harbor for forward-looking statements contained in such Sections. These forward-looking statements include information about possible or assumed future results of our business, financial condition, liquidity, results of operations, plans and objectives. When we use the words “believe,” “expect,” “anticipate,” “estimate,” “plan,” “continue,” “intend,” “should,” “may” or similar expressions, we intend to identify forward-looking statements.

Forward-looking statements are subject to significant risks and uncertainties. Investors are cautioned against placing undue reliance on such statements. Actual results may differ materially from those set forth in the forward-looking statements. Factors that could cause actual results to differ materially from those described in the forward-looking statements are contained in our Annual Report on Form 10-K for the year ended December 31, 2020, as amended by our Amendment No. 1 to our Annual Report on Form 10-K for the year ended December 31, 2020 (collectively, our “2020 Form 10-K”), that was filed with the U.S. Securities and Exchange Commission (the “SEC”), and this Form 10-Q and other periodic reports that we file with the SEC.

Other important factors that we think could cause our actual results to differ materially from expected results are summarized below, including the ongoing impact of the current outbreak of the novel coronavirus ("COVID-19"), on the U.S., regional and global economies, the U.S. climate solutions market and the broader financial markets. The current outbreak of COVID-19 has also impacted, and is likely to continue to impact, directly or indirectly, many of the other important factors below and the risks described in the Form 10-K and in our subsequent filings under the Exchange Act. Other factors besides those listed could also adversely affect us. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. In particular, it is difficult to fully assess the impact of COVID-19 at this time due to, among other factors, uncertainty regarding new virus variants and uncertainty regarding whether "herd immunity" can be achieved through vaccination campaigns.

Statements regarding the following subjects, among others, may be forward-looking:

•negative impacts from a continued spread of COVID-19, including on the U.S. or global economy or on our business, financial position or results of operations;

• our expected returns and performance of our investments;

•the state of government legislation, regulation and policies that support or enhance the economic feasibility of projects that reduce carbon emissions or increase resilience to climate change, which we refer to as climate solutions, including energy efficiency and renewable energy projects and the general market demands for such projects;

•market trends in our industry, energy markets, commodity prices (including continued low natural gas prices), interest rates, the capital markets or the general economy;

•our business and investment strategy;

•the availability of opportunities to invest in climate solutions, including energy efficiency and renewable energy projects, and our ability to complete potential new opportunities in our pipeline;

•our relationships with originators, investors, market intermediaries and professional advisers;

•competition from other providers of capital;

•our or any other company’s projected operating results;

•actions and initiatives of the federal, state and local governments and changes to federal, state and local government policies, regulations, tax laws and rates and the execution and impact of these actions, initiatives and policies;

•the state of the U.S. economy generally or in specific geographic regions, states or municipalities, and economic trends;

•our ability to obtain and maintain financing arrangements on favorable terms, including securitizations;

•general volatility of the securities markets in which we participate;

•the credit quality of our assets;

•changes in the value of our assets, our portfolio of assets and our investment and underwriting process;

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•the impact of weather conditions, natural disasters, accidents, equipment failures or other events that disrupt the operation of our investments or negatively impact the value of our assets;

•rates of default or decreased recovery rates on our assets;

•interest rate and maturity mismatches between our assets and any borrowings used to fund such assets;

•changes in interest rates and the market value of our assets and target assets;

•effects of hedging instruments on our assets or liabilities;

•the degree to which our hedging strategies may or may not protect us from risks, such as interest rate or commodity price volatility;

•the impact of and changes in accounting guidance;

•our ability to maintain our qualification as a real estate investment trust (“REIT”) for U.S. federal income tax purposes;

•our ability to maintain our exemption from registration under the Investment Company Act of 1940, as amended (the “1940 Act”);

•the availability of and our ability to attract and retain qualified personnel;

•estimates relating to our ability to generate sufficient cash in the future to operate our business and to make distributions to our stockholders; and

•our understanding of our competition.

The risks included here are not exhaustive. Forward-looking statements are based on beliefs, assumptions and expectations as of the date of this Form 10-Q. Any forward-looking statement speaks only as of the date on which it is made. New risks and uncertainties arise over time, and it is not possible for us to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements after the date of this Form 10-Q, whether as a result of new information, future events or otherwise.

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TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements	1
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	33
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	46
Item 4.	Controls and Procedures	48
PART II. OTHER INFORMATION		49
Item 1.	Legal Proceedings	49
Item 1A.	Risk Factors	49
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	49
Item 3.	Defaults Upon Senior Securities	49
Item 4.	Mine Safety Disclosures	49
Item 5.	Other Information	49
Item 6.	Exhibits	50
SIGNATURES		52

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)

(UNAUDITED)

	September 30, 2021 (unaudited)		December 31, 2020
Assets
Cash and cash equivalents	$	413,259	$	286,250
Equity method investments	1,468,282		1,279,651
Commercial receivables, net of allowance of $39 million and $36 million, respectively	1,224,741		965,452
Government receivables	126,412		248,455
Real estate	356,861		359,176
Investments	17,637		55,377
Securitization assets	203,625		164,342
Other assets	130,046		100,364
Total Assets	$	3,940,863	$	3,459,067
Liabilities and Stockholders’ Equity
Liabilities:
Accounts payable, accrued expenses and other	$	77,395	$	59,944
Credit facilities	25,483		22,591
Non-recourse debt (secured by assets of $574 million and $723 million, respectively)	438,051		592,547
Senior unsecured notes	1,771,264		1,283,335
Convertible notes	155,285		290,501
Total Liabilities	2,467,478		2,248,918
Stockholders’ Equity:
Preferred stock, par value $0.01 per share, 50,000,000 shares authorized, no shares issued and outstanding	—		—
Common stock, par value $0.01 per share, 450,000,000 shares authorized, 84,275,179 and 76,457,415 shares issued and outstanding, respectively	843		765
Additional paid in capital	1,671,747		1,394,009
Accumulated deficit	(225,933)		(204,112)
Accumulated other comprehensive income (loss)	7,746		12,634
Non-controlling interest	18,982		6,853
Total Stockholders’ Equity	1,473,385		1,210,149
Total Liabilities and Stockholders’ Equity	$	3,940,863	$	3,459,067

See accompanying notes.

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HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)

(UNAUDITED)

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
Revenue
Interest income	$	26,236	$	23,508	$	76,352	$	71,046
Rental income	6,430		6,469		19,361		19,408
Gain on sale of receivables and investments	13,072		13,628		54,988		34,449
Fee income	3,144		4,984		8,769		13,115
Total revenue	48,882		48,589		159,470		138,018
Expenses
Interest expense	27,349		26,085		95,394		65,884
Provision for loss on receivables	1,485		2,458		2,896		5,629
Compensation and benefits	12,218		9,012		39,850		27,223
General and administrative	4,964		3,918		14,814		11,181
Total expenses	46,016		41,473		152,954		109,917
Income before equity method investments	2,866		7,116		6,516		28,101
Income (loss) from equity method investments	(7,215)		16,506		69,519		32,505
Income (loss) before income taxes	(4,349)		23,622		76,035		60,606
Income tax (expense) benefit	1,250		(2,345)		(11,510)		(2,860)
Net income (loss)	$	(3,099)	$	21,277	$	64,525	$	57,746
Net income (loss) attributable to non-controlling interest holders	(261)		102		366		255
Net income (loss) attributable to controlling stockholders	$	(2,838)	$	21,175	$	64,159	$	57,491
Basic earnings (loss) per common share	$	(0.04)	$	0.28	$	0.81	$	0.80
Diluted earnings (loss) per common share	$	(0.04)	$	0.28	$	0.79	$	0.78
Weighted average common shares outstanding—basic	79,335,173		74,012,788		78,407,028		71,376,004
Weighted average common shares outstanding—diluted	79,335,173		76,131,252		82,069,464		72,644,626

See accompanying notes.

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HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(DOLLARS IN THOUSANDS)

(UNAUDITED)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income (loss)	$	(3,099)	$	21,277	$	64,525	$	57,746
Unrealized gain (loss) on available-for-sale securities, net of tax benefit (provision) of $0.1 million and $0.3 million for the three and nine months ended September 30, 2021 and $0.0 million and $(1.1) million for the three and nine months ended September 30, 2020	(900)		872		(8,268)		12,280
Unrealized gain (loss) on interest rate swaps, net of tax benefit (provision) of $0.9 million and $(1.0) million for the three and nine months ended September 30, 2021 and $(0.3) million and $1.3 million for the three and nine months ended September 30, 2020	(2,703)		990		3,351		(4,071)
Comprehensive income (loss)	(6,702)		23,139		59,608		65,955
Less: Comprehensive income (loss) attributable to non-controlling interest holders	(274)		110		337		289
Comprehensive income (loss) attributable to controlling stockholders	$	(6,428)	$	23,029	$	59,271	$	65,666

See accompanying notes.

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HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(AMOUNTS IN THOUSANDS)

(UNAUDITED)

	Common Stock			Additional Paid-in Capital		Accumulated Deficit		Accumulated Other Comprehensive Income (Loss)		Non-controlling interests		Total
	Shares	Amount
Balance at June 30, 2021	78,419	$	784	$	1,487,103	$	(193,530)	$	11,335	$	16,855	$	1,322,547
Net income (loss)	—	—		—		(2,838)		—		(261)		(3,099)
Unrealized gain (loss) on available-for-sale securities	—	—		—		—		(896)		(4)		(900)
Unrealized gain (loss) on interest rate swaps	—	—		—		—		(2,693)		(10)		(2,703)
Issued shares of common stock	857	9		48,803		—		—		—		48,812
Equity-based compensation	—	—		985		—		—		2,730		3,715
Conversion of convertible notes	4,999	50		134,856		—		—		—		134,906
Dividends and distributions	—	—		—		(29,565)		—		(328)		(29,893)
Balance at September 30, 2021	84,275	$	843	$	1,671,747	$	(225,933)	$	7,746	$	18,982	$	1,473,385
Balance at June 30, 2020	73,319	$	733	$	1,250,976	$	(198,719)	$	9,619	$	5,355	$	1,067,964
Net income (loss)	—	—		—		21,175		—		102		21,277
Unrealized gain (loss) on available-for-sale securities	—	—		—		—		864		8		872
Unrealized gain (loss) on interest rate swaps	—	—		—		—		991		(1)		990
Issued shares of common stock	875	10		29,238		—		—		—		29,248
Equity-based compensation	—	—		1,617		—		—		1,285		2,902
Other	59	—		913		—		—		(859)		54
Dividends and distributions	—	—		—		(25,370)		—		(200)		(25,570)
Balance at September 30, 2020	74,253	$	743	$	1,282,744	$	(202,914)	$	11,474	$	5,690	$	1,097,737

See accompanying notes.

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	Common Stock			Additional Paid-in Capital		Accumulated Deficit		Accumulated Other Comprehensive Income (Loss)		Non-controlling interests		Total
	Shares	Amount
Balance at December 31, 2020	76,457	$	765	$	1,394,009	$	(204,112)	$	12,634	$	6,853	$	1,210,149
Net income (loss)	—	—		—		64,159		—		366		64,525
Unrealized gain (loss) on available-for-sale securities	—	—		—		—		(8,219)		(49)		(8,268)
Unrealized gain (loss) on interest rate swaps	—	—		—		—		3,331		20		3,351
Issued shares of common stock	2,496	25		151,676		—		—		—		151,701
Equity-based compensation	—	—		5,226		—		—		12,739		17,965
Issuance (repurchase) of vested equity-based compensation shares	323	3		(14,020)		—		—		—		(14,017)
Conversion of convertible notes	4,999	50		134,856		—		—		—		134,906
Dividends and distributions	—	—		—		(85,980)		—		(947)		(86,927)
Balance at September 30, 2021	84,275	$	843	$	1,671,747	$	(225,933)	$	7,746	$	18,982	$	1,473,385
Balance at December 31, 2019	66,338	$	663	$	1,102,303	$	(169,786)	$	3,300	$	3,432	$	939,912
Net income (loss)	—	—		—		57,491		—		255		57,746
Adoption of ASU 2016-13, net of tax effect	—	—		—		(14,031)		—		(74)		(14,105)
Unrealized gain (loss) on available-for-sale securities	—	—		—		—		12,222		58		12,280
Unrealized gain (loss) on interest rate swaps	—	—		—		—		(4,048)		(23)		(4,071)
Issued shares of common stock	7,319	75		188,723		—		—		—		188,798
Equity-based compensation	—	—		8,098		—		—		3,543		11,641
Issuance (repurchase) of vested equity-based compensation shares	537	5		(17,293)		—		—		—		(17,288)
Other	59	—		913		—		—		(860)		53
Dividends and distributions	—	—		—		(76,588)		—		(641)		(77,229)
Balance at September 30, 2020	74,253	$	743	$	1,282,744	$	(202,914)	$	11,474	$	5,690	$	1,097,737

See accompanying notes.

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HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(DOLLARS IN THOUSANDS)

(UNAUDITED)

	Nine Months Ended September 30,
	2021		2020
Cash flows from operating activities
Net income (loss)	$	64,525	$	57,746
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for loss on receivables	2,896		5,629
Depreciation and amortization	2,811		2,685
Amortization of financing costs	8,445		5,824
Equity-based compensation	13,503		11,615
Equity method investments	(45,684)		14,024
Non-cash gain on securitization	(37,521)		(36,866)
(Gain) loss on sale of receivables and investments	(720)		8,671
Loss on debt extinguishment	14,584		—
Changes in accounts payable and accrued expenses	11,606		5,906
Change in accrued interest on receivables and investments	(9,516)		(21,925)
Other	(3,243)		(1,447)
Net cash provided by (used in) operating activities	21,686		51,862
Cash flows from investing activities
Equity method investments	(155,461)		(322,948)
Equity method investment distributions received	10,936		90,920
Proceeds from sales of equity method investments	300		—
Purchases of and investments in receivables	(407,517)		(92,232)
Principal collections from receivables	87,548		94,780
Proceeds from sales of receivables	75,582		52,329
Purchases of investments	(4,830)		(22,777)
Principal collections from investments	256		1,981
Proceeds from sales of investments and securitization assets	15,197		58,018
Funding of escrow accounts	(12,069)		(7,783)
Withdrawal from escrow accounts	1,538		6,300
Other	290		3,200
Net cash provided by (used in) investing activities	(388,230)		(138,212)
Cash flows from financing activities
Proceeds from credit facilities	25,000		126,000
Principal payments on credit facilities	(22,441)		(134,594)
Proceeds from issuance of non-recourse debt	—		15,938
Principal payments on non-recourse debt	(29,900)		(118,623)
Proceeds from issuance of senior unsecured notes	1,000,000		771,250
Proceeds from issuance of convertible notes	—		143,750
Redemption of senior unsecured notes	(500,000)		—
Net proceeds of common stock issuances	151,501		188,197
Payments of dividends and distributions	(83,354)		(74,295)
Withholdings on employee share vesting	(14,018)		(17,287)
Redemption premium paid	(14,101)		—
Payment of debt issuance costs	(17,672)		(14,382)
Other	(13)		(623)
Net cash provided by (used in) financing activities	495,002		885,331
Increase (decrease) in cash, cash equivalents, and restricted cash	128,458		798,981
Cash, cash equivalents, and restricted cash at beginning of period	310,331		106,586
Cash, cash equivalents, and restricted cash at end of period	$	438,789	$	905,567
Interest paid	$	74,962	$	57,310
Supplemental disclosure of non-cash activity
Residual assets retained from securitization transactions	$	45,578	$	38,081
Right-of-use asset obtained in exchange for lease liability	4,628		—
Issuance of common stock from conversion of convertible notes	135,800		—
Deconsolidation of non-recourse debt	126,139		—
Deconsolidation of assets pledged for non-recourse debt	130,513		—

See accompanying notes.

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HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

September 30, 2021

1.The Company

Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “Company”) invests in climate solutions by providing capital to leading companies in the energy efficiency, renewable energy and other sustainable infrastructure markets. Our goal is to generate attractive returns from a diversified portfolio of projects with long-term and predictable cash flows from proven technologies that reduce carbon emissions or increase resilience to climate change.

The Company and its subsidiaries are hereafter referred to as “we,” “us” or “our.” Our investments take various forms, including equity, joint ventures, real estate ownership, or lending or other financing transactions, and typically benefit from contractually committed high credit quality obligors. We also generate on-going fees through off-balance sheet securitization transactions, advisory services and asset management. We refer to the income producing assets that we hold on our balance sheet as our “Portfolio.” Our Portfolio may include:

•equity investments in either preferred or common structures in unconsolidated entities;

•government and commercial receivables, such as loans for renewable energy and energy efficiency projects;

•real estate, such as land or other assets leased for use by sustainable infrastructure projects typically under long-term leases; and

•investments in debt securities of renewable energy or energy efficiency projects.

We finance our business through cash on hand, borrowings under credit facilities and debt transactions, asset-backed securitization transactions and equity issuances. We also generate fee income through securitizations and syndications, by providing broker/dealer services and by managing and servicing assets owned by third parties.

Our common stock is listed on the New York Stock Exchange (“NYSE”) under the symbol “HASI.” We have qualified as a real estate investment trust (“REIT”) and also intend to continue to operate our business in a manner that will maintain our exemption from registration as an investment company under the Investment Company Act of 1940 (the "1940 Act"), as amended. We operate our business through, and serve as the sole general partner of, our operating partnership subsidiary, Hannon Armstrong Sustainable Infrastructure, L.P., (the “Operating Partnership”), which was formed to acquire and directly or indirectly own our assets.

2.Summary of Significant Accounting Policies

Basis of Presentation

The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and such differences could be material. These financial statements have been prepared in accordance with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2020, as filed with the SEC. In the opinion of management, all adjustments necessary to present fairly our financial position, results of operations and cash flows have been included. Our results of operations for the three- and nine-month periods ended September 30, 2021 and 2020, are not necessarily indicative of the results to be expected for the full year or any other future period. Certain information and footnote disclosures normally included in our annual consolidated financial statements have been condensed or omitted. Certain amounts in the prior years have been reclassified to conform to the current year presentation.

The consolidated financial statements include our accounts and controlled subsidiaries, including the Operating Partnership. All material intercompany transactions and balances have been eliminated in consolidation.

Following the guidance for non-controlling interests in Financial Accounting Standards Board Accounting Standards Codification (“ASC”) 810, Consolidation ("ASC 810"), references in this report to our earnings per share and our net income and stockholders’ equity attributable to common stockholders do not include amounts attributable to non-controlling interests.

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Consolidation

We account for our investments in entities that are considered voting interest entities or variable interest entities (“VIEs”) under ASC 810 and assess whether we should consolidate these entities on an ongoing basis. We have established various special purpose entities or securitization trusts for the purpose of securitizing certain assets that are not consolidated in our financial statements as described below in Securitization of Financial Assets.

Since we have assessed that we have power over and receive the benefits from those special purpose entities that are formed for the purpose of holding our assets on our balance sheet, we have concluded we are the primary beneficiary and should consolidate these entities under the provisions of ASC 810. We also have certain subsidiaries we deem to be voting interest entities that we control through our ownership of voting interests and accordingly consolidate.

Certain of our equity method investments were determined to be interests in VIEs in which we are not the primary beneficiary, as we do not direct the significant activities of these entities, and thus we account for those investments as Equity Method Investments as discussed below. Our maximum exposure to loss through these investments is limited to their recorded values. However, we may provide financial commitments to these VIEs or guarantees of certain of their obligations. Certain other entities in which we have equity investments have been assessed to be voting interest entities and are not consolidated as we exert significant influence rather than control through our ownership of voting interests, and accordingly account for them as equity method investments described below.

Equity Method Investments

We have made equity investments in various renewable energy and energy efficiency projects. These investments are typically owned in holding companies (using limited liability companies (“LLCs”) taxed as partnerships) where we partner with either the operator of the project or other institutional investors. We share in the cash flows, income and tax attributes according to a negotiated schedule (which typically does not correspond with our ownership percentages). Investors, if any, in a preferred return position typically receive a priority distribution of all or a portion of the project's cash flows, and in some cases, tax attributes. Once the preferred return, if applicable, is achieved, the partnership “flips” and the operator of the project along with any other common equity investors receive a larger portion of the cash flows, with the previously preferred investors retaining an on-going residual interest.

Our equity investments in renewable energy or energy efficiency projects are accounted for under the equity method of accounting. Under the equity method of accounting, the carrying value of these equity method investments is determined based on amounts we invested, adjusted for the equity in earnings or losses of the investee allocated based on the LLC agreement, less distributions received. For the LLC agreements that contain preferences with regard to cash flows from operations, capital events and liquidation, we reflect our share of profits and losses by determining the difference between our claim on the investee’s book value at the beginning and the end of the period, which is adjusted for distributions received and contributions made. This claim is calculated as the amount we would receive if the investee were to liquidate all of its assets at the recorded amounts determined in accordance with GAAP and distribute the resulting cash to creditors and investors in accordance with their respective priorities. This method is referred to as the hypothetical liquidation at book value method (“HLBV”).

Any difference between the amount of our investment and the amount of underlying equity in net assets is generally amortized over the life of the assets and liabilities to which the difference relates. Cash distributions received from each equity method investment are classified as operating activities to the extent of cumulative earnings for each investment in our consolidated statements of cash flows. Our initial investment and additional cash distributions beyond that which are classified as operating activities are classified as investing activities in our consolidated statements of cash flows. We typically recognize earnings one quarter in arrears for certain of these investments to allow for the receipt of financial information.

We evaluate on a quarterly basis whether our investments accounted for using the equity method have an other than temporary impairment (“OTTI”). An OTTI occurs when the estimated fair value of an investment is below the carrying value and the difference is determined to not be recoverable. This evaluation requires significant judgment regarding, but not limited to, the severity and duration of the impairment; the ability and intent to hold the securities until recovery; financial condition, liquidity, and near-term prospects of the issuer; specific events; and other factors.

Government and Commercial Receivables

Government and commercial receivables (“receivables”) include project loans and receivables. These receivables are separately presented in our balance sheet to illustrate the differing nature of the credit risk related to these assets. Unless otherwise noted, we generally have the ability and intent to hold our receivables for the foreseeable future and thus they are classified as held for investment. Our ability and intent to hold certain receivables may change from time to time depending on a number of factors including economic, liquidity and capital market conditions. At inception of the arrangement, the carrying value of receivables held for investment represents the present value of the note, lease or other payments, net of any unearned fee income, which is recognized as income over the term of the note or lease using the effective interest method. Receivables that are held for investment are carried at amortized cost, net of any unamortized acquisition premiums or discounts and include

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origination and acquisition costs, as applicable. Our initial investment and principal repayments of these receivables are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows. Receivables that we intend to sell in the short-term are classified as held-for-sale and are carried at the lower of amortized cost or fair value on our balance sheet, which is assessed on an individual asset basis. The purchases and proceeds from receivables that we intend to sell at origination are classified as operating activities in our consolidated statements of cash flows. Interest collected is classified as an operating activity in our consolidated statements of cash flows. Certain of our receivables may include the ability to defer required interest payments in exchange for increasing the receivable balance at the borrower's option. We generally accrue this paid-in-kind (“PIK”) interest when collection is expected, and cease accruing PIK interest if there is insufficient value to support the accrual or we expect that any portion of the principal or interest due is not collectible.

We evaluate our receivables for an allowance as determined under ASC Topic 326 Financial Instruments- Credit Losses (“Topic 326”) and for our internally derived asset performance categories included in Note 6 to our financial statements in this Form 10-Q on at least a quarterly basis and more frequently when economic or other conditions warrant such an evaluation. When a receivable becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally consider the receivable delinquent or impaired and place the receivable on non-accrual status and cease recognizing income from that receivable until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a receivable’s status significantly improves regarding the debtor’s ability to service the debt or other obligations, we will remove it from non-accrual status.

We determine our allowance based on the current expectation of credit losses over the contractual life of our receivables as required by Topic 326. We use a variety of methods in developing our allowance, including discounted cash flow analysis and probability-of-default/loss given default (“PD/LGD”) methods. In developing our estimates, we consider our historical experience with our and similar assets in addition to our view of both current conditions and what we expect to occur within a period of time for which we can develop reasonable and supportable forecasts, typically two years. For periods following the reasonable and supportable forecast period, we revert to historical information when developing assumptions used in our estimates. In developing our forecasts, we consider a number of qualitative and quantitative factors in our assessment, including a project’s operating results, loan-to-value ratio, any cash reserves, the ability of expected cash from operations to cover the cash flow requirements currently and into the future, key terms of the transaction, the ability of the borrower to refinance the transaction, other credit support from the sponsor or guarantor and the project’s collateral value. In addition, we consider the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, such as unemployment rates and power prices, the impact of any variation in weather and the historical and anticipated trends in interest rates, defaults and loss severities for similar transactions. For those assets where we record our allowance using a discounted cash flow method, we have elected to record the change in allowance due solely to the passage of time through the provision for loss on receivables in our income statement. For assets where the obligor is a publicly rated entity, we consider the published historical performance of entities with similar ratings in developing our estimate of an allowance, making adjustments determined by management to be appropriate during the reasonable and supportable forecast period. We have made certain loan commitments that are within the scope of Topic 326. When estimating an allowance for these loan commitments we consider the probability of certain amounts to be funded and apply either a discounted cash flow or PD/LGD methodology as described above. We charge off receivables against the allowance, if any, when we determine the unpaid principal balance is uncollectible, net of recovered amounts. Any provision we record for an allowance is a non-cash reconciling item to cash from operating activities in our consolidated statements of cash flows.

Real Estate

Real estate consists of land or other real property and its related lease intangibles, net of any amortization. Our real estate is generally leased to tenants on a triple net lease basis, whereby the tenant is responsible for all operating expenses relating to the property, generally including property taxes, insurance, maintenance, repairs and capital expenditures. Certain real estate transactions may be characterized as "failed sale-leaseback" transactions as defined under ASC Topic 842, Leases, and thus are accounted for similarly to our commercial receivables as described above in Government and Commercial Receivables.

For our other real estate lease transactions that are classified as operating leases, the scheduled rental revenue typically varies during the lease term and thus rental income is recognized on a straight-line basis, unless there is considerable risk as to collectability, so as to produce a constant periodic rent over the term of the lease. Accrued rental income is the aggregate difference between the scheduled rents that vary during the lease term and the income recognized on a straight-line basis and is recorded in other assets. Expenses, if any, related to the ongoing operation of leases where we are the lessor, are charged to operations as incurred. Our initial investment is classified as investing activities and income collected for rental income is classified as operating activities in our consolidated statements of cash flows.

When our real estate transactions are treated as an asset acquisition with an operating lease, we typically record our real estate purchases at cost, including acquisition and closing costs, which is allocated to each tangible and intangible asset acquired on a relative fair value basis.

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The fair value of the tangible assets of an acquired leased property is determined by valuing the property as if it were vacant, and the “as-if-vacant” value is then allocated to land, building and tenant improvements, if any, based on the determination of the fair values of these assets. The as-if-vacant fair value of a property is typically determined by management based on appraisals by a qualified appraiser. In determining the fair value of the identified intangibles of an acquired property, above-market and below-market in-place lease values are valued based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining term of the lease, including renewal periods reasonably certain of being exercised by the lessee.

The capitalized off-market lease values are amortized as an adjustment of rental income over the term used to value the intangible. We also record, as appropriate, an intangible asset for in-place leases. The value of the leases in place at the time of the transaction is equal to the potential income lost if the leases were not in place. The amortization of this intangible occurs over the initial term unless management believes that it is reasonably certain that the tenant would exercise the renewal option, in which case the amortization would extend through the renewal period. If a lease were to be terminated, all unamortized amounts relating to that lease would be written off.

Investments

Investments are debt securities that meet the criteria of ASC 320, Investments-Debt and Equity Securities. We have designated our debt securities as available-for-sale and carry these securities at fair value on our balance sheet. Unrealized gains and losses, to the extent not considered to be credit related, on available-for-sale debt securities are recorded as a component of accumulated other comprehensive income (“AOCI”) in equity on our balance sheet. When a security is sold, we reclassify the AOCI to earnings based on specific identification. Our initial investment and principal repayments of these investments are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows.

We evaluate our investments for impairment on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. Our impairment assessment is a subjective process requiring the use of judgments and assumptions. Accordingly, we regularly evaluate the extent and impact of any credit deterioration associated with the financial and operating performance and value of the underlying project. We consider several qualitative and quantitative factors in our assessment. The primary factor in our assessment is the current fair value of the security, while other factors include changes in the credit rating, performance of the underlying project, key terms of the transaction, the value of any collateral and any support provided by the sponsor or guarantor.

To the extent that we have identified an impairment for a security, intend to hold the investment to maturity, and do not expect that we will be required to sell the security prior to recovery of the amortized cost basis, we will recognize only the credit component of the unrealized loss in earnings by recording an allowance against the amortized cost of the asset as required by Topic 326. We determine the credit component using the difference between the security’s amortized cost basis and the present value of its expected future cash flows, discounted using the effective interest method or its estimated collateral value. Any remaining unrealized loss due to factors other than credit is recorded in AOCI.

To the extent we hold investments with a fair value less than the amortized cost and we have made the decision to sell the security or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, we recognize the entire portion of the impairment in earnings.

Premiums or discounts on investment securities are amortized or accreted into interest income using the effective interest method.

Securitization of Financial Assets

We have established various special purpose entities or securitization trusts for the purpose of securitizing certain financial assets. We determined that the trusts used in securitizations are VIEs, as defined in ASC 810. When we conclude that we are not the primary beneficiary of certain trusts because we do not have power over those trusts' significant activities, we do not consolidate the trust. We typically serve as primary or master servicer of these trusts; however, as the servicer, we do not have the power to make significant decisions impacting the performance of the trusts.

We account for transfers of financial assets to these securitization trusts as sales pursuant to ASC 860, Transfers and Servicing (“ASC 860”), when we have concluded the transferred assets have been isolated from the transferor (i.e., put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership) and we have surrendered control over the transferred assets. When we are unable to conclude that we have been sufficiently isolated from the securitized financial assets, we treat such trusts as secured borrowings, retaining the assets on our balance sheet and recording the amounts due to the trust investor as non-recourse debt.

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For transfers treated as sales under ASC 860, we have received true-sale-at-law and non-consolidation legal opinions for all of our securitization trust structures to support our conclusion regarding the transferred financial assets. When we sell financial assets in securitizations, we generally retain interests in the form of servicing rights and residual assets, which we refer to as securitization assets.

Gain or loss on the sale of financial assets is calculated based on the excess of the proceeds received from the securitization (less any transaction costs) plus any retained interests obtained over the cost basis of the assets sold. For retained interests, we generally estimate fair value based on the present value of future expected cash flows using our best estimates of the key assumptions of anticipated losses, prepayment rates, and current market discount rates commensurate with the risks involved. Cash flows related to our securitizations at origination are classified as operating activities in our consolidated statements of cash flows.

We initially account for all separately recognized servicing assets and servicing liabilities at fair value and subsequently measure such servicing assets and liabilities using the amortization method. Servicing assets and liabilities are amortized in proportion to, and over the period of, estimated net servicing income with servicing income recognized as earned. We assess servicing assets for impairment at each reporting date. If the amortized cost of servicing assets is greater than the estimated fair value, we will recognize an impairment in net income.

Our other retained interest in securitized assets, the residual assets, are accounted for similar to available-for-sale debt securities and carried at fair value. Income related to the residual assets is recognized using the effective interest rate method and included in fee income in the income statement. Our residual assets are evaluated for impairment on a quarterly basis. A residual asset is impaired if its fair value is less than its carrying value. The credit component of impairments, if any, are recognized by recording an allowance against the amortized cost of the asset. For changes in expected cash flows, we will calculate a new yield based on the current amortized cost of the residual assets and the revised expected cash flows. This yield is used prospectively to recognize our income related to these assets.

Cash and Cash Equivalents

Cash and cash equivalents include short-term government securities, certificates of deposit and money market funds, all of which had an original maturity of three months or less at the date of purchase. These securities are carried at their purchase price, which approximates fair value.

Restricted Cash

Restricted cash includes cash and cash equivalents set aside with certain lenders primarily to support obligations outstanding as of the balance sheet dates. Restricted cash is reported as part of other assets in the consolidated balance sheets. Refer to Note 3 to our financial statements in this Form 10-Q for disclosure of the balances of restricted cash included in other assets.

Convertible Notes

We have issued convertible senior notes that are accounted for in accordance with ASC 470-20, Debt with Conversion and Other Options, and ASC 815, Derivatives and Hedging (“ASC 815”). Under ASC 815, issuers of certain convertible debt instruments are generally required to separately account for the conversion option of the convertible debt instrument as either a derivative or equity, unless it meets the scope exemption for contracts indexed to, and settled in, an issuer’s own equity. Since this conversion option is both indexed to our equity and can only be settled in our common stock, we have met the scope exemption, and therefore, we are not separately accounting for the embedded conversion option. The initial issuance and any principal repayments are classified as financing activities and interest payments are classified as operating activities in our consolidated statements of cash flows. If converted, the carrying value of each bond is reclassified into stockholders' equity.

Income Taxes

We elected and qualified to be taxed as a REIT for U.S. federal income tax purposes, commencing with our taxable year ended December 31, 2013. We also have taxable REIT subsidiaries (“TRS”) that are taxed separately, and that will generally be subject to U.S. federal, state and local income taxes as well as taxes of foreign jurisdictions, if any. To qualify as a REIT, we must meet on an ongoing basis several organizational and operational requirements, including a requirement that we currently distribute at least 90% of our REIT's net taxable income before dividends paid, excluding capital gains, to our stockholders. As a REIT, we are not subject to U.S. federal corporate income tax on that portion of net income that is currently distributed to our owners.

We account for income taxes under ASC 740, Income Taxes (“ASC 740”) for our TRS using the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to the differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities from a change in tax rates is

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recognized in earnings in the period when the new rate is enacted. We evaluate any deferred tax assets for valuation allowances based on an assessment of available evidence including sources of taxable income, prior years taxable income, any existing taxable temporary differences and our future investment and business plans that may give rise to taxable income. We treat any tax credits we receive from our equity investments in renewable energy projects as reductions of federal income taxes of the year in which the credit arises. Any deferred tax impacts resulting from transfers of assets to or from our TRS are recorded as an adjustment to additional paid-in capital, as it is a transfer amongst entities under common control.

We apply ASC 740 with respect to how uncertain tax positions should be recognized, measured, presented, and disclosed in the financial statements. This guidance requires the accounting and disclosure of tax positions taken or expected to be taken in the course of preparing our tax returns to determine whether the tax positions are “more likely than not” to be sustained by the applicable tax authority. We are required to analyze all open tax years, as defined by the statute of limitations, for all major jurisdictions, which includes U.S. federal and certain states.

Equity-Based Compensation

In 2013, we adopted the 2013 Hannon Armstrong Sustainable Infrastructure Capital, Inc. Equity Incentive Plan (as amended, the “2013 Plan”), which provides for grants of stock options, stock appreciation rights, restricted stock units, shares of restricted common stock, phantom shares, dividend equivalent rights, long-term incentive-plan units (“LTIP units”) and other restricted limited partnership units issued by our Operating Partnership and other equity-based awards. From time to time, we may grant equity or equity-based awards as compensation to our independent directors, employees, advisors, consultants and other personnel under our 2013 Plan. Certain awards earned under the plan are based on achieving various performance targets, which are generally earned between 0% and 200% of the initial target, depending on the extent to which the performance target is met. In addition to performance targets, certain LTIP units issued by our Operating Partnership also require a certain level of appreciation of partnership interests to occur before parity is reached and LTIP units can be converted to limited partnership units.

We record compensation expense for grants made under the 2013 Plan in accordance with ASC 718, Compensation-Stock Compensation. We record compensation expense for unvested grants that vest solely based on service conditions on a straight-line basis over the vesting period of the entire award based upon the fair market value of the grant on the date of grant. Fair market value for restricted common stock is based on our share price on the date of grant. For awards where the vesting is contingent upon achievement of certain performance targets, compensation expense is measured based on the fair market value on the grant date and is recorded over the requisite service period (which includes the performance period). Actual performance results at the end of the performance period determines the number of shares that will ultimately be awarded. We have also issued awards where the vesting is contingent upon service being provided for a defined period and certain market conditions being met. The fair value of these awards, as measured at the grant date, is recognized over the requisite service period, even if the market conditions are not met. The grant date fair value of these awards was developed by an independent appraiser using a Monte Carlo simulation.

Earnings Per Share

We compute earnings per share of common stock in accordance with ASC 260, Earnings Per Share. Basic earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period excluding the weighted average number of unvested grants under the 2013 Plan, if applicable (“participating securities” as defined in Note 12 to our financial statements to this Form 10-Q). Diluted earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period plus other potential common stock instruments if they are dilutive. Other potentially dilutive common stock instruments include our unvested restricted stock, other equity-based awards, and convertible notes. The restricted stock and other equity-based awards are included if they are dilutive using the treasury stock method. The treasury stock method assumes that theoretical proceeds received for future service provided is used to purchase shares of treasury stock at the average market price per share of common stock, which is deducted from the total shares of potential common stock included in the calculation. When unvested grants are dilutive, the earnings allocated to these dilutive unvested grants are not deducted from the net income attributable to controlling stockholders when calculating diluted earnings per share. The convertible notes are included if they are dilutive using the if-converted method. The if-converted method removes interest expense related to the convertible notes from the net income attributable to controlling stockholders and includes the weighted average shares of potential common stock over the period issuable upon conversion of the note. No adjustment is made for shares of potential common stock that are anti-dilutive during a period.

Segment Reporting

We make equity and debt investments in the energy efficiency, renewable energy and sustainable infrastructure markets. We manage our business as a single portfolio and report all of our activities as one business segment.

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Recently Issued Accounting Pronouncements

Accounting standards updates issued before November 5, 2021, and effective after September 30, 2021, are not expected to have a material effect on our consolidated financial statements and related disclosures.

3.Fair Value Measurements

Fair value is defined as the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The fair value accounting guidance provides a three-level hierarchy for classifying financial instruments. The levels of inputs used to determine the fair value of our financial assets and liabilities carried on the balance sheet at fair value and for those which only disclosure of fair value is required are characterized in accordance with the fair value hierarchy established by ASC 820, Fair Value Measurements. Where inputs for a financial asset or liability fall in more than one level in the fair value hierarchy, the financial asset or liability is classified in its entirety based on the lowest level input that is significant to the fair value measurement of that financial asset or liability. We use our judgment and consider factors specific to the financial assets and liabilities in determining the significance of an input to the fair value measurements. As of September 30, 2021 and December 31, 2020, only our residual assets related to our securitization trusts and investments were carried at fair value on the consolidated balance sheets on a recurring basis. The three levels of the fair value hierarchy are described below:

•Level 1 — Quoted prices (unadjusted) in active markets that are accessible at the measurement date.

•Level 2 — Observable prices that are based on inputs not quoted on active markets but corroborated by market data.

•Level 3 — Unobservable inputs are used when little or no market data is available.

The tables below illustrate the estimated fair value of our financial instruments on our balance sheet. Unless otherwise discussed below, fair value for our Level 2 and Level 3 measurements is measured using a discounted cash flow model, contractual terms and inputs which consist of base interest rates and spreads over base rates which are based upon market observation and recent comparable transactions. An increase in these inputs would result in a lower fair value and a decline would result in a higher fair value. Our senior unsecured notes and convertible notes are valued using a market based approach and observable prices. The receivables held-for-sale, if any, are carried at the lower of cost or fair value.

	As of September 30, 2021
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	139	$	126	Level 3
Commercial receivables	1,397		1,225		Level 3
Investments (1)	18		18		Level 3
Securitization residual assets (2)	198		198		Level 3
Liabilities (3)
Credit facilities	$	25	$	25	Level 3
Non-recourse debt	487		449		Level 3
Senior unsecured notes	1,838		1,793		Level 2
Convertible notes	203		158		Level 2

(1)The amortized cost of our investments as of September 30, 2021, was $17 million.

(2)Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of September 30, 2021 was $184 million.

(3)Fair value and carrying value exclude unamortized financing costs.

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	As of December 31, 2020
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	282	$	248	Level 3
Commercial receivables	1,018		965		Level 3
Investments (1)	55		55		Level 3
Securitization residual assets (2)	159		159		Level 3
Liabilities (3)
Credit facilities	$	23	$	23	Level 3
Non-recourse debt	678		605		Level 3
Senior unsecured notes	1,362		1,299		Level 2
Convertible notes	552		296		Level 2

(1)    The amortized cost of our investments as of December 31, 2020, was $51 million.

(2)    Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of December 31, 2020 was $141 million.

(3)    Fair value and carrying value exclude unamortized financing costs.

Investments

The following table reconciles the beginning and ending balances for our Level 3 investments that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	18	$	46	$	55	$	75
Purchases of investments	—		5		5		23
Principal payments on investments	—		—		—		(2)
Sale of investments	—		—		(38)		(53)
Realized gains on investments recorded in gain on sale of receivables and investments	—		—		—		5
Unrealized gains (losses) on investments recorded in OCI	—		1		(4)		4
Balance, end of period	$	18	$	52	$	18	$	52

The following table illustrates our investments in an unrealized loss position:

	Estimated Fair Value				Unrealized Losses (1)
	Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months		Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months
	(in millions)
September 30, 2021	$	7	$	—	$	0.2	$	—
December 31, 2020	—		6		—		0.3

(1)    Loss position is due to interest rates movements. We have the intent and ability to hold these investments until a recovery of fair value.

In determining the fair value of our investments we used a market-based risk-free rate and a range of interest rate spreads of approximately 1% to 4% based upon transactions involving similar assets as of September 30, 2021 and December 31, 2020. The weighted average discount rate used to determine the fair value of our investments as of September 30, 2021 and December 31, 2020 were 3.6% and 3.2%, respectively.

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Securitization residual assets

The following table reconciles the beginning and ending balances for our Level 3 securitization residual assets that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	188	$	135	$	159	$	122
Accretion of securitization residual assets	2		2		6		4
Additions to securitization residual assets	11		9		45		36
Collections of securitization residual assets	(2)		(4)		(8)		(9)
Sales of securitization residual assets	—		—		—		(21)
Unrealized gains (losses) on securitization residual assets recorded in OCI	(1)		—		(4)		10
Balance, end of period	$	198	$	142	$	198	$	142

In determining the fair value of our securitization residual assets, we used a market-based risk-free rate and a range of interest rate spreads of approximately 1% to 4% based upon transactions involving similar assets as of September 30, 2021 and December 31, 2020. The weighted average discount rates used to determine the fair value of our securitization residual assets as of September 30, 2021 and December 31, 2020 were 4.3% and 3.8%, respectively.

Non-recurring Fair Value Measurements

Our financial statements may include non-recurring fair value measurements related to acquisitions and non-monetary transactions, if any. Assets acquired in a business combination are recorded at their fair value. We may use third-party valuation firms to assist us with developing our estimates of fair value. See Note 6 for discussion of a fair value measurement recorded at September 30, 2021 related to an equity method investment.

Concentration of Credit Risk

Government and commercial receivables, real estate leases and debt investments consist primarily of U.S. federal government-backed receivables, investment grade state and local government receivables and receivables from various climate solutions projects and do not, in our view, represent a significant concentration of credit risk. Additionally, certain of our investments are collateralized by projects concentrated in certain geographic regions throughout the United States. These investments typically have structural credit protections to mitigate our risk exposure and, in most cases, the projects are insured for estimated physical loss, which helps to mitigate the possible risk from these concentrations.

We had cash deposits that are subject to credit risk as shown below:

	September 30, 2021		December 31, 2020
	(in millions)
Cash deposits	$	413	$	286
Restricted cash deposits (included in other assets)	26		24
Total cash deposits	$	439	$	310
Amount of cash deposits in excess of amounts federally insured	$	437	$	309

4.Non-Controlling Interest

Units of limited partnership interests in the Operating Partnership (“OP units”) that are owned by limited partners other than us are included in non-controlling interest on our consolidated balance sheets. The non-controlling interest holders are generally allocated their pro rata share of income, other comprehensive income and equity transactions.

The outstanding OP units held by outside limited partners represent less than 1% of our outstanding OP units and are redeemable by the limited partners for cash, or at our option, for a like number of shares of our common stock. No OP units were exchanged by non-controlling interest holders during the nine months ended September 30, 2021 and 57,400 OP units were exchanged by non-controlling interest holders during the nine months ended September 30, 2020.

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We have also granted to members of our management team and directors LTIP Units pursuant to the 2013 Plan. LTIP Units issued to employees are held by HASI Management HoldCo LLC. The LTIP Units are designed to qualify as profits interests in the Operating Partnership and initially will have a capital account balance of zero and, therefore, will not have full parity with OP units with respect to liquidating distributions or other rights. However, the amended and restated agreement of limited partnership of the Operating Partnership (the “OP Agreement”) provides that “book gains,” or economic appreciation, in the Operating Partnership will be allocated first to the LTIP Units until the capital account per LTIP Units is equal to the capital account per-unit of the OP units. Under the terms of the OP Agreement, the Operating Partnership will revalue its assets upon the occurrence of certain specified events, and any increase in valuation from the time of grant until such event will be allocated first to the holders of LTIP Units to equalize the capital accounts of such holders with the capital accounts of OP unit holders. Once this has occurred, the LTIP Units will achieve full parity with the OP units for all purposes, including with respect to liquidating distributions and redemption rights. In addition to these attributes, there are vesting and settlement conditions similar to our other equity-based awards as discussed in Notes 2 and 11 to our financial statements in this Form 10-Q.

5.Securitization of Financial Assets

The following summarizes certain transactions with securitization trusts: 

	As of and for the nine months ended September 30,
	2021		2020
	(in millions)
Gains on securitizations	$	55	$	34
Cost of financial assets securitized	665		173
Proceeds from securitizations	720		207
Residual and servicing assets	204		147
Cash received from residual and servicing assets	9		9

In connection with securitization transactions, we typically retain servicing responsibilities and residual assets. We generally receive annual servicing fees that are typically up to 0.20% of the outstanding balance. We may periodically make servicer advances, that are subject to credit risk. Included in securitization assets in our consolidated balance sheets are our servicing assets at amortized cost and our residual assets at fair value. Our residual assets are subordinate to investors’ interests, and their values are subject to credit, prepayment and interest rate risks on the transferred financial assets. Other than our securitization assets representing our residual interests in the trusts' collateral, the investors and the securitization trusts have no recourse to our assets for failure of debtors to pay when due. In computing gains and losses on securitizations, we use discount rates based on a review of comparable market transactions including Level 3 unobservable inputs, which consist of base interest rates and spreads over these base rates. Depending on the nature of the transaction risks, the discount rate ranged from 2% to 8%.

As of September 30, 2021 and December 31, 2020, our managed assets totaled $8.2 billion and $7.2 billion, respectively, of which $5.0 billion and $4.3 billion, respectively, were securitized assets held in unconsolidated securitization trusts. There were no securitization credit losses in the nine months ended September 30, 2021 or September 30, 2020. As of September 30, 2021, there were no material payments from debtors to the securitization trusts that were greater than 90 days past due.

Receivables from contracts for the installation of energy efficiency and other technologies are the source of cash flows of $109 million of our securitization residual assets. These technologies are installed in facilities owned by, or operated for or by, federal, state or local government entities where the ultimate obligor for the receivable is a governmental entity. The contracts may have guarantees of energy savings from third-party service providers, which typically are entities rated investment grade by an independent rating agency. The remainder of our securitization residual assets are related to contracts where the underlying cash flows are secured by an interest in real estate which are typically senior in terms of repayment to other financings.

6.Our Portfolio

As of September 30, 2021, our Portfolio included approximately $3.2 billion of equity method investments, receivables, real estate and investments on our balance sheet. The equity method investments represent our non-controlling equity investments in renewable energy and energy efficiency projects and land. The receivables and investments are typically collateralized by contractually committed debt obligations of government entities or private high credit quality obligors and are often supported by additional forms of credit enhancement, including security interests and supplier guaranties. The real estate is typically land and related lease intangibles for long-term leases to wind and solar projects.

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In developing and evaluating performance against our credit criteria, we consider a number of qualitative and quantitative criteria including a project’s operating results, loan-to-value ratio, any cash reserves, the ability of expected cash from operations to cover the cash flow requirements currently and into the future, key terms of the transaction, the ability of the borrower to refinance the transaction, the financial and operating capability of the borrower, its sponsors or the obligor as well as any guarantors and the project’s collateral value. In addition, we consider the overall economic environment, the climate solutions sector, the effect of local, industry and broader economic factors, the impact of any variation in weather and the historical and anticipated trends in interest rates, defaults and loss severities for similar transactions.

The following is an analysis of the Performance Ratings of our Portfolio as of September 30, 2021, which is assessed quarterly:

	Portfolio Performance
	1 (1)						2 (2)			3 (3)			Total
	Government			Commercial			Commercial			Commercial
Receivable vintage	(dollars in millions)
2021	$	—		$	203		$	—		$	—		$	203
2020	—			190			—			—			190
2019	—			483			6			—			489
2018	—			260			—			—			260
2017	31			1			8			—			40
2016	14			59			—			—			73
Prior to 2016	81			46			—			8			135
Total receivables	126			1,242			14			8			1,390
Less: Allowance for loss on receivables	—			(26)			(5)			(8)			(39)
Net receivables (4)	126			1,216			9			—			1,351
Receivables held-for-sale	—			—			—			—			—
Investments	11			7			—			—			18
Real estate	—			357			—			—			357
Equity method investments (5)	—			1,442			26			—			1,468
Total	$	137		$	3,022		$	35		$	—		$	3,194
Percent of Portfolio	4		%	95		%	1		%	—		%	100		%
Average remaining balance (6)	$	6		$	13		$	10		$	4		$	12

(1)This category includes our assets where based on our credit criteria and performance to date we believe that our risk of not receiving our invested capital remains low.

(2)This category includes our assets where based on our credit criteria and performance to date we believe there is a moderate level of risk to not receiving some or all of our invested capital.

(3)This category includes our assets where based on our credit criteria and performance to date, we believe there is substantial doubt regarding our ability to recover some or all of our invested capital. Included in this category are two commercial receivables with a combined total carrying value of approximately $8 million as of September 30, 2021, which we have held on non-accrual status since 2017. We expect to continue to pursue our legal claims with regards to these assets. This category previously contained an equity method investment in a wind project with no book value due to our allocation of impairment losses recorded by the project sponsor. We sold this equity method investment in the third quarter for nominal proceeds.

(4)Total reconciles to the total of the government receivables and commercial receivables lines of the consolidated balance sheets.

(5)Some of the individual projects included in portfolios that make up our equity method investments have government off-takers. As they are part of large portfolios, they are not classified separately. 

(6)Average remaining balance is calculated gross of allowance for loss on receivables and excludes approximately 152 transactions each with outstanding balances that are less than $1 million and that in the aggregate total $72 million.

Receivables

As of September 30, 2021, our allowance for loan losses was $39 million based on our expectation of credit losses over the lives of the receivables in our portfolio. During the three and nine months ended September 30, 2021, we increased our reserve by approximately $2 million and $3 million, respectively, primarily as a result of loans and loan commitments made during the period.

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Below is a summary of the carrying value, expected loan funding commitments, and allowance by type of receivable or “Portfolio Segment”, as defined by Topic 326, as of September 30, 2021 and December 31, 2020:

	September 30, 2021						December 31, 2020
	Gross Carrying Value		Loan Funding Commitments		Allowance		Gross Carrying Value		Loan Funding Commitments		Allowance
	(in millions)
Government (1)	$	126	$	—	$	—	$	248	$	—	$	—
Commercial (2)	1,264		290		39		1,002		282		36
Total	$	1,390	$	290	$	39	$	1,250	$	282	$	36

(1)As of September 30, 2021, our government receivables include $28 million of U.S. federal government transactions and $98 million of transactions where the ultimate obligors are state or local governments.

Risk characteristics of our government receivables include the energy savings or the power output of the projects and the ability of the government obligor to generate revenue for debt service, via taxation or other means. Transactions may have guarantees of energy savings or other performance support from third-party service providers, which typically are entities, directly or whose ultimate parent entity is, rated investment grade by an independent rating agency. All of our government receivables are included in Performance Rating 1 in the Portfolio Performance table above. Our allowance for government receivables is primarily calculated by using PD/LGD methods as discussed in Note 2 to our financial statements in this Form 10-Q. Our expectation of credit losses for these receivables is immaterial given the high credit-quality of the obligors.

(2)As of September 30, 2021, this category of assets includes $742 million of mezzanine loans made on a non-recourse basis to special purpose subsidiaries of residential solar companies which are secured by residential solar assets where we rely on certain limited indemnities, warranties, and other obligations of the residential solar companies or their other subsidiaries. Approximately $647 million of our commercial receivables are loans made to entities in which we also have non-controlling equity investments of approximately $76 million. This total also includes $47 million of lease agreements where we hold legal title to the underlying real estate which are treated under GAAP as receivables since they were deemed to be failed sale/leaseback transactions as described in Note 2 to our financial statements in this Form 10-Q.

Risk characteristics of our commercial receivables include a project’s operating risks, which include the impact of the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, the impact of any variation in weather and trends in interest rates. We use assumptions related to these risks to estimate an allowance using a discounted cash flow analysis or the PD/LGD method as discussed in Note 2 to our financial statements in this Form 10-Q. All of our commercial receivables are included in Performance Rating 1 in the Portfolio Performance table above, except for $14 million of receivables included in Performance Category 2 and the $8 million of receivables we have placed on non-accrual status which are included in Performance Rating 3. For those assets in Performance Rating 1, the credit worthiness of the obligor combined with the various structural protections of our assets cause us to believe we have a low risk we will not receive our invested capital, however we recorded a $26 million allowance on these $1.2 billion in assets as a result of lower probability assumptions utilized in our allowance methodology.

The following table reconciles our beginning and ending allowance for loss on receivables by Portfolio Segment:

	Three months ended September 30, 2021				Three months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance	$	—	$	37	$	—	$	29
Provision for loss on receivables	—		2		—		2
Ending balance	$	—	$	39	$	—	$	31
	Nine months ended September 30, 2021				Nine months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance (1)	$	—	$	36	$	—	$	26
Provision for loss on receivables	—		3		—		5
Ending balance	$	—	$	39	$	—	$	31

(1)For the nine months ended September 30, 2020, the beginning balance represents January 1, 2020, the adoption date of Topic 326. The beginning balance includes the pre-tax allowance for loss on receivables of $17 million recorded upon adoption which reflects our estimated loss as of that date under the new standard as well as the $8 million of receivables which were previously on non-accrual status and fully reserved.

Other than the $8 million of receivables discussed above with a Performance Rating of 3, we have no receivables which are on non-accrual status.

The following table provides a summary of our anticipated maturity dates of our receivables and the weighted average yield for each range of maturities as of September 30, 2021:

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	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period (excluding allowance)	$	1,390		$	67		$	56		$	482		$	785
Weighted average yield by period	8.2		%	7.6		%	6.3		%	8.4		%	8.3		%

Investments

The following table provides a summary of our anticipated maturity dates of our investments and the weighted average yield for each range of maturities as of September 30, 2021:

	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period	$	18		$	—		$	—		$	—		$	18
Weighted average yield by period	4.1		%	—		%	—		%	—		%	4.1		%

We had no investments that were impaired or on non-accrual status as of September 30, 2021 or December 31, 2020, and no allowances associated with our investments.

Real Estate

Our real estate is leased to renewable energy projects, typically under long-term triple net leases with expiration dates that range between the years 2033 and 2057 under the initial terms and 2047 and 2080 if all renewals are exercised. The components of our real estate portfolio as of September 30, 2021 and December 31, 2020, were as follows: 

	September 30, 2021		December 31, 2020
	(in millions)
Real estate
Land	$	269	$	269
Lease intangibles	104		104
Accumulated amortization of lease intangibles	(16)		(14)
Real estate	$	357	$	359

As of September 30, 2021, the future amortization expense of the intangible assets and the future minimum rental income payments under our land lease agreements are as follows:

	Future Amortization Expense		Minimum Rental Income Payments
	(in millions)
From October 1, 2021 to December 31, 2021	$	1	$	5
2022	3		22
2023	3		23
2024	3		24
2025	3		24
2026	3		24
Thereafter	72		717
Total	$	88	$	839

Equity Method Investments

We have made non-controlling equity investments in a number of renewable energy and energy efficiency projects as well as in a joint venture that owns land with long-term triple net lease agreements to several solar projects that we account for as equity method investments.

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As of September 30, 2021, we held the following equity method investments:

Investment Date	Investee	Carrying Value
		(in millions)
Various	Jupiter Equity Holdings LLC	$	540
Various	Lighthouse Partnerships (1)	211
March 2020	University of Iowa Energy Collaborative Holdings LLC	121
Various	Phase V Class A LLC	109
Various	Other investees	487
	Total equity method investments	$	1,468

(1)     Represents the total of three equity investments in a portfolio of renewable assets.

Jupiter Equity Holdings LLC

We have a preferred equity interest in Jupiter Equity Holdings LLC (“Jupiter”) that owns nine operating onshore wind projects and four operating utility-scale solar projects with an aggregate capacity of approximately 2.3 gigawatts. As of September 30, 2021, we have made capital contributions to Jupiter of approximately $540 million related to these projects. The projects feature cash flows from fixed-price power purchase agreements and financial hedges with a weighted average contract life of 13 years, contracted with highly creditworthy off-takers and counterparties.

Jupiter is governed by an amended and restated limited liability company agreement, dated July 1, 2020, by and among Jupiter, one of our subsidiaries and a subsidiary of the project sponsor, and contains customary terms and conditions. We own 100% of the Class A Units in Jupiter corresponding to 49% of the distributions from Jupiter subject to the preferences discussed below. Most major decisions that may impact Jupiter, its subsidiaries or its assets, require the majority vote of a four person committee in which we and the project sponsor each have two representatives. Through Jupiter, we will be entitled to preferred distributions until certain return targets are achieved. Once these return targets are achieved, distributions will be allocated approximately 33% to us and approximately 67% to the sponsor. We and the sponsor each have a right of first offer if the other party desires to transfer any of its equity ownership to a third party on or after July 1, 2023. We use the equity method of accounting to account for our preferred equity interest in Jupiter, and have elected to recognize earnings from this investment one quarter in arrears to allow for the receipt of financial information.

Lighthouse Partnerships

In December 2020, we entered into certain agreements relating to the acquisition, ownership and management of approximately $663 million in preferred cash equity investments in three partnerships (the “Lighthouse Partnerships”) that expect to own cash equity interests in an approximately 1.6 gigawatt portfolio of onshore wind, utility-scale solar and solar-plus-storage projects (the “Renewables Portfolio”) developed and managed by the project sponsor. We have made initial investments in the preferred cash equity interests of the Lighthouse Partnerships of approximately $219 million through September 30, 2021, and additional investments are expected to be made in 2021 and 2022 as the projects become commercially operational. The Renewables Portfolio currently has contracted cash flows with a combined weighted average contract life of greater than 14 years with a diversified group of predominately investment grade corporate, utility, university and municipal offtakers. In the first quarter of 2021, we made approximately $15 million in equity contributions and made $10 million in member loans to one of the Lighthouse Partnerships for the settlement of hedging activity under one of the project's power hedge agreements as a result of the February 2021 winter storms in Texas.

Each of the Lighthouse Partnerships are or will be governed by a limited liability company agreement between us and the sponsor serving as managing member and contain customary terms and conditions. Most major decisions that may impact each of the Lighthouse Partnerships, its subsidiaries or its assets, require a unanimous vote of the representatives present at a meeting of a review committee in which a quorum is present. The review committee is a four person committee, which includes two Company representatives and two sponsor representatives. Through each Lighthouse Partnership, commencing on a certain date following the effective date of the applicable limited liability company agreement, we will be entitled to preferred distributions until certain return targets are achieved. Subject to customary exceptions, no member of a Lighthouse Partnership can transfer any of its equity ownership in any Lighthouse Partnership to a third party without approval of the review committee of that Lighthouse Partnership. We use the equity method of accounting to account for our preferred equity interest in each Lighthouse Partnership, and have elected to recognize earnings from this investment one quarter in arrears to allow for the receipt of financial information.

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Other Equity method investments

In July 2021, we restructured an equity method investment with a GAAP carrying value of $24 million to convert it to a $17 million loan. The June 30, 2021 GAAP carrying value of this investment included amounts related to non-cash HLBV income that in normal course would have reversed over time. Because this transaction was an indication of fair value that existed as of June 30, 2021, we accelerated the reversal of $7 million of previously recorded non-cash HLBV income included in the June 30, 2021 carrying value of this investment in the second quarter through income from equity method investments on our income statement.

7.Credit facilities and commercial paper notes

Secured credit facilities

We have two secured revolving credit facilities (our “Secured Credit Facilities”), a representation-based loan agreement (the “Rep-Based Facility”) and an approval-based loan agreement (the “Approval-Based Facility”) with various lenders, which mature in July 2023. The Rep-Based Facility is a secured revolving limited-recourse credit facility, which we modified in March 2021 to have a maximum outstanding principal amount of $100 million, lowered from a previous amount of $250 million. This modification resulted in a $1.5 million loss due to the acceleration of a portion of the related unamortized financing costs that was recognized in the first quarter of 2021. The Approval-Based Facility is a secured revolving recourse credit facility with a maximum outstanding principal amount of $200 million.

The following table provides additional detail on our Secured Credit Facilities as of September 30, 2021:

	Rep-Based  Facility		Approval-Based Facility
	(dollars in millions)
Outstanding balance	$	—	$	—
Value of collateral pledged to credit facility	24		89
Available capacity based on pledged assets	11		64
Weighted average short-term borrowing rate	N/A		N/A

Loans under the Rep-Based Facility bear interest at a rate equal to one-month LIBOR plus 1.40% or 1.85% (depending on the type of collateral) or, in certain circumstances, the Federal Funds Rate plus 0.40% or 0.85% (depending on the type of collateral). Loans under the Approval-Based Facility bear interest at a rate equal to one-month LIBOR plus 1.50% or 2.00% (depending on the type of collateral) or, under certain circumstances, the Federal Funds Rate plus 0.50% or 1.00% (depending on the type of collateral).

Inclusion of any financings of the Company in the borrowing base as collateral under the Rep-Based Facility will be subject to the Company making certain agreed upon representations and warranties. We have provided a limited guarantee covering the accuracy of the representations and warranties, and the repayment by the borrowers of certain amounts relating to any such financing is the exclusive remedy with respect to any breach of such representations and warranties under the Rep-Based Facility. Inclusion of any financings of the Company in the borrowing base as collateral under the Approval-Based Facility will be subject to the approval of a super-majority of the lenders, and we have provided a guarantee of the Approval-Based Facility.

The amount eligible to be drawn under the Secured Credit Facilities is based on a discount to the value of each included investment based upon the type of collateral or an applicable valuation percentage. The sum of included financings after taking into account the applicable valuation percentages and any changes in the valuation of the financings in accordance with the Secured Credit Facilities determines the borrowing capacity, subject to the overall facility limits described above. Under the Rep-Based Facility, the applicable valuation percentage is 85% in the case of a land-lease obligor or a U.S. Federal Government obligor, 80% in the case of an institutional obligor or state and local obligor, and with respect to other obligors or in certain circumstances, such other percentage as the administrative agent may prescribe. Under the Approval-Based Facility, the applicable valuation percentage is 85% in the case of certain approved financings and 67% or such other percentage as the administrative agent may prescribe. The Approval-Based Facility previously had an outstanding draw with a fixed amortization schedule that was prepaid in the third quarter of 2021.

We have approximately $2 million of remaining unamortized financing costs associated with the Secured Credit Facilities that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the Secured Credit Facilities. Administrative fees are payable annually to the administrative agent under each of the Secured Credit Facilities and letter agreements with the administrative agent. Under the Rep-Based Facility, we pay to the administrative agent on each monthly payment date, for the benefit of the lenders, certain availability fees for the Rep-Based

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Facility equal to 0.60%, divided by 365 or 366, as applicable, multiplied by the excess of the available total commitments under the Rep-Based Facility over the actual amount borrowed under the Rep-Based Facility.

The Secured Credit Facilities contain terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds and stock repurchases. We were in compliance with our covenants as of September 30, 2021.

The Secured Credit Facilities also include customary events of default, including the existence of a default in more than 50% of the value of underlying financings. The occurrence of an event of default may result in termination of the credit facilities, acceleration of amounts due under the Secured Credit Facilities, and accrual of default interest at a rate of LIBOR plus 2.00% in the case of both the Rep-Based Facility and the Approval-Based Facility.

Unsecured credit facility

In April 2021, we entered into a new $400 million, 364-day unsecured revolving credit facility pursuant to a revolving credit agreement with a syndicate of lenders, replacing our then-existing $50 million unsecured revolving credit facility entered into in February 2021. As of September 30, 2021, the outstanding balance on this facility was $25 million, and it currently bears interest at a rate of 2.325%. We have approximately $1 million of remaining unamortized financing costs associated with the unsecured credit facility that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the unsecured credit facility.

The unsecured revolving credit facility has a commitment fee based on our current credit rating and bears interest at a rate of the LIBOR or prime rate plus applicable margins based on our current credit rating, which may be adjusted downward up to 0.05% to the extent our Portfolio achieves certain targeted levels of carbon emissions avoidance. As of the inception of the unsecured revolving credit facility, the applicable margins are 2.25% for LIBOR-based loans and 1.25% for prime rate-based loans. The unsecured revolving credit facility contains terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds, stock repurchases and dividends we declare. The unsecured revolving credit facility also includes customary events of default and remedies. At our option, upon maturity of the unsecured credit facility, we have the ability to convert amounts borrowed into term loans for a fee equal to 2.25% of the term loan amounts.

CarbonCount© Green Commercial Paper Note Program

In September 2021, we entered into an agreement allowing us to issue commercial paper notes, in amounts up to $100 million outstanding at any time. We obtained an irrevocable direct-pay letter of credit in an amount not to exceed $100 million from Bank of America, N.A, to support these obligations which expires in December 2022. Commercial paper notes will not be redeemable, will not be subject to voluntary prepayment and are not to exceed 397 days. The proceeds of our commercial paper notes are used to acquire or refinance, in whole or in part, eligible green projects, including assets that are neutral to negative on incremental carbon emissions. We have no commercial paper notes outstanding as of September 30, 2021.

Green commercial paper notes will be issued at a discount based on market pricing, subject to broker fees of 0.10%. For issuance of the letter of credit, we will pay 0.95% on any drawn letter of credit amounts to Bank of America, N.A., and 0.40% on any unused letter of credit capacity. Fees paid on the drawn letters of credit may be reduced by up to 0.05% to the extent our Portfolio achieves certain targeted levels of carbon emissions avoidance as measured by our CarbonCount© metric. As of September 30, 2021, we have approximately $1 million of remaining unamortized financing costs associated with the commercial paper program and associated letter of credit that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the commercial paper program. The associated letter of credit contains terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds, stock repurchases and dividends we declare. The letter of credit also includes customary events of default and remedies.

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8.Long-term Debt

Non-recourse debt

We have outstanding the following asset-backed non-recourse debt and bank loans:

	Outstanding Balance as of						Anticipated Balance at Maturity		Carrying Value of Assets Pledged as of
	September 30, 2021		December 31, 2020		Interest Rate	Maturity Date			September 30, 2021		December 31, 2020		Description of Assets Pledged
	(dollars in millions)
HASI Sustainable Yield Bond 2015-1A	$	78	$	81	4.28%	October 2034	$	—	$	133	$	134	Receivables, real estate and real estate intangibles
HASI Sustainable Yield Bond 2015-1B Note (1)	—		13		5.41%	October 2034	—		133		134		Class B Bond of HASI Sustainable Yield Bond 2015-1
HASI SYB Trust 2016-2	66		67		4.35%	April 2037	—		66		71		Receivables
HASI ECON 101 Trust (2)	—		126		3.57%	May 2041	—		—		133		Receivables and investments
HASI SYB Trust 2017-1	147		150		3.86%	March 2042	—		203		205		Receivables, real estate and real estate intangibles
Lannie Mae Series 2019-01	93		95		3.68%	January 2047	—		107		107		Receivables, real estate and real estate intangibles
Other non-recourse debt (3)	65		73		3.15% - 7.45%	2022 to 2032	18		65		73		Receivables
Unamortized financing costs	(11)		(12)
Non-recourse debt (4)	$	438	$	593

(1)The Company repurchased this note in April of 2021.

(2)In March 2021, contractual terms were modified resulting in the deconsolidation of both this debt and the related pledged assets. We recognized a loss of approximately $3 million, which is included in gain on sale of receivables and investments in our income statement.

(3)Other non-recourse debt consists of various debt agreements used to finance certain of our receivables. Scheduled debt service payment requirements are equal to or less than the cash flows received from the underlying receivables.

(4)The total collateral pledged against our non-recourse debt was $574 million and $723 million as of September 30, 2021 and December 31, 2020, respectively. In addition, $25 million and $23 million of our restricted cash balance was pledged as collateral to various non-recourse loans as of September 30, 2021 and December 31, 2020, respectively.

We have pledged the financed assets, and typically our interests in one or more parents or subsidiaries of the borrower that are legally separate bankruptcy remote special purpose entities as security for the non-recourse debt. There is no recourse for repayment of these obligations other than to the applicable borrower and any collateral pledged as security for the obligations. Generally, the assets and credit of these entities are not available to satisfy any of our other debts and obligations. The creditors can only look to the borrower, the cash flows of the pledged assets and any other collateral pledged, to satisfy the debt and we are not otherwise liable for nonpayment of such cash flows. The debt agreements contain terms, conditions, covenants and representations and warranties that are customary and typical for transactions of this nature, including limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds and stock repurchases. The agreements also include customary events of default, the occurrence of which may result in termination of the agreements, acceleration of amounts due and accrual of default interest. We typically act as servicer for the debt transactions. We were in compliance with all covenants as of September 30, 2021 and December 31, 2020.

We have guaranteed the accuracy of certain of the representations and warranties and other obligations of certain of our subsidiaries under certain of the debt agreements and provided an indemnity against certain losses from “bad acts” of such subsidiaries including fraud, failure to disclose a material fact, theft, misappropriation, voluntary bankruptcy or unauthorized transfers.

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The stated minimum maturities of non-recourse debt as of September 30, 2021, were as follows:

	Future minimum maturities
	(in millions)
October 1, 2021 to December 31, 2021	$	11
2022	23
2023	26
2024	30
2025	26
2026	25
Thereafter	308
Total minimum maturities	$	449
Unamortized financing costs	(11)
Total non-recourse debt	$	438

The stated minimum maturities of non-recourse debt above include only the mandatory minimum principal payments. To the extent there are additional cash flows received from our investments in climate solutions serving as collateral for certain of our non-recourse debt facilities, these additional cash flows are required to be used to make additional principal payments against the respective debt. Any additional principal payments made due to these provisions may impact the anticipated balance at maturity of these financings. To the extent there are not sufficient cash flows received from those investments pledged as collateral, the investor has no recourse against other corporate assets to recover any shortfalls.

Senior Unsecured Notes

We have outstanding senior unsecured notes issued jointly by certain of our TRS and are guaranteed by the Company and certain other subsidiaries (the “Senior Unsecured Notes”), including $1 billion of senior notes due 2026 (“2026 Notes”) issued in June 2021. Proceeds from the 2026 Notes were used to redeem the 2024 Notes as described below. The Senior Unsecured Notes are subject to covenants that limit our ability to incur additional indebtedness and require us to maintain unencumbered assets of not less than 120% of our unsecured debt. These covenants will terminate on any date at which the Senior Unsecured Notes have been rated investment grade by two of the three major credit rating agencies and no event of default has occurred. We are in compliance with all of our covenants as of September 30, 2021 and December 31, 2020. The Senior Unsecured Notes impose certain requirements in the event that we merge with or sell substantially all of our assets to another entity. The proceeds of our Senior Unsecured Notes are used to acquire or refinance, in whole or in part, eligible green projects, including assets that are neutral to negative on incremental carbon emissions.

The following are summarized terms of the Senior Unsecured Notes:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Redemption Terms Modification Date
	(in millions)
2024 Notes	$	—	(1)	July 15, 2024	5.25	%	January 15th and July 15th	July 15, 2021
2025 Notes	400			April 15, 2025	6.00	%	April 15 and October 15th	April 15, 2022 (2)
2026 Notes	1,000			June 15, 2026	3.38	%	June 15 and December 15	March 15, 2026 (2)
2030 Notes	375		(3)	September 15, 2030	3.75	%	February 15th and August 15th	September 15, 2022 (4)

(1)The first $350 million issuance of 2024 Notes was priced at par. We subsequently issued $150 million of the $500 million aggregate principal amount of the 2024 Notes for total proceeds of $157 million ($155 million net of issuance costs) at an effective interest rate of 4.13%. The 2024 Notes were redeemed in June 2021 using a portion of the proceeds from the 2026 Notes. We recognized a loss of $15 million upon redemption for the redemption premium and the acceleration of debt issuance cost and premium amortization which is recorded in interest expense in our income statement.

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(2)Prior to this date, we may redeem, at our option, some or all of the 2025 Notes or 2026 Notes for the outstanding principal amount plus the applicable “make-whole” premium as defined in the indenture governing the 2025 Notes or 2026 Notes plus accrued and unpaid interest through the redemption date. In addition, prior to this date, we may redeem up to 40% of the Senior Unsecured Notes using the proceeds of certain equity offerings at a price equal to par plus the coupon percentage of the principal amount thereof, plus accrued but unpaid interest, if any, to, but excluding, the applicable redemption date. On, or subsequent to, this date we may redeem the 2025 Notes or 2026 Notes in whole or in part at redemption prices defined in the indenture governing the 2025 Notes or 2026 Notes, plus accrued and unpaid interest though the redemption date.

(3)We issued the $375 million aggregate principal amount of the 2030 Notes for total proceeds of $371 million ($367 million net of issuance costs) at an effective interest rate of 3.87%.

(4)Prior to this date, we may, at our option on one or more occasions redeem up to 40% of the 2030 Notes using the proceeds of certain equity offerings at a price equal to 103.75% of the principal amount thereof; plus accrued but unpaid interest, if any, to, but excluding the applicable redemption date. At any point prior to maturity, we may redeem, at our option, some or all of the 2030 Notes plus the applicable “make-whole” premium as defined in the indenture governing the 2030 Notes plus accrued and unpaid interest through the redemption date.

The following table presents a summary of the components of the Senior Unsecured Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	1,775	$	1,275
Accrued interest	21		22
Unamortized premium (discount)	(3)		2
Less: Unamortized financing costs	(22)		(16)
Carrying value of Senior Unsecured Notes	$	1,771	$	1,283

We recorded approximately $19 million and $53 million in interest expense related to the Senior Unsecured Notes in the three and nine months ended September 30, 2021, respectively, compared to approximately $14 million and $33 million in the three and nine months ended September 30, 2020, respectively.

Convertible Senior Notes

We have outstanding $158 million aggregate principal amount of convertible senior notes (“Convertible Senior Notes”). Holders may convert any of their Convertible Senior Notes into shares of our common stock at the applicable conversion ratio at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date, unless the Convertible Senior Notes have been previously redeemed or repurchased by us.

The following are summarized terms of the Convertible Senior Notes as of September 30, 2021:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Conversion Ratio	Conversion Price	Issuable Shares	Dividend Threshold Amount (1)
	(in millions)									(in millions)
2022 Convertible Senior Notes	$	14	(2)	September 1, 2022	4.125	%	March 1 and September 1	36.8088	$27.17	0.5	$0.33
2023 Convertible Senior Notes	144			August 15, 2023	0.000	%	N/A	20.6853	$48.34	3.0	$0.34

(1)The conversion ratio is subject to adjustment for dividends declared above these amounts per share per quarter and certain other events that may be dilutive to the holder.

(2)During the quarter ended September 30, 2021, $136 million in principal amount of 2022 Convertible Senior Notes were converted into 5 million shares of common stock.

For both the 2022 Convertible Senior Notes and the 2023 Convertible Senior Notes, following the occurrence of a make-whole fundamental change, we will, in certain circumstances, increase the conversion rate for a holder that converts its convertible notes in connection with such make-whole fundamental change. There are no cash settlement provisions in the convertible notes and the conversion option can only be settled through physical delivery of our common stock. Additionally, upon the occurrence of certain fundamental changes involving us, holders of the convertible notes may require us to redeem all or a portion of their convertible notes for cash at a price of 100% of the principal amount outstanding, plus accrued and unpaid interest.

We have a redemption option to call the 2022 Convertible Senior Notes prior to maturity (i) on or after March 1, 2022 and (ii) at any time if such a redemption is deemed reasonably necessary to preserve our qualification as a REIT,

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with the holder of the notes having the option of converting prior to our redemption becoming effective. The redemption price will be equal to the principal of the notes being redeemed, plus accrued and unpaid interest. In the event of redemption after March 1, 2022, there will be an additional make-whole premium paid to the holder of the redeemed notes unless the redemption is deemed reasonably necessary to preserve our qualification as a REIT. We may redeem the 2023 Convertible Senior Notes at any time only if such a redemption is deemed reasonably necessary to preserve our qualification as a REIT.

The following table presents a summary of the components of the Convertible Senior Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	158	$	294
Accrued interest	—		2
Less: Unamortized financing costs	(3)		(5)
Carrying value of Convertible Senior Notes	$	155	$	291

We recorded approximately $2 million and $6 million in interest expense related to the Convertible Senior Notes in the three and nine months ended September 30, 2021 and 2020, respectively.

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9.Commitments and Contingencies

Litigation

The nature of our operations exposes us to the risk of claims and litigation in the normal course of our business. We are not currently subject to any legal proceedings that are probable of having a material adverse effect on our financial position, results of operations or cash flows.

Guarantees and other commitments

We have made a guarantee related to the financing of one of our joint venture entities that owns debt securities of energy efficiency projects. The entity entered into a financing arrangement where we have guaranteed the obligations of the entity related to this financing, which includes collateral posting requirements as well as repayment of the financing at maturity in December 2021. As of September 30, 2021, our maximum obligation under this guarantee is approximately $60 million. We have executed a separate agreement with our joint venture partner pursuant to which it is liable for 15% of this obligation repayable to us.

In connection with some of our transactions, we have provided certain limited representations, warranties, covenants and/or provided an indemnity against certain losses resulting from our own actions, including related to certain investment tax credits. As of September 30, 2021, there have been no such actions resulting in claims against the Company.

COVID-19

The COVID-19 global pandemic has brought forth uncertainty and disruption to the global economy. As of September 30, 2021, we have not recorded any contingencies on our balance sheet related to COVID-19 with the exception of any allowances related to our receivables described in Note 6 to our financial statements in this Form 10-Q. To the extent COVID-19 continues to cause dislocations in the global economy, our financial condition, results of operations, and cash flows may be adversely impacted.

10.    Income Tax

We recorded an income tax (expense) benefit of approximately $1 million and $(12) million for the three and nine months ended September 30, 2021, respectively, compared to a $(2) million and $(3) million income tax (expense) benefit in the three and nine months ended September 30, 2020, respectively. For the three and nine months ended September 30, 2021 and 2020, our income tax (expense) benefit was determined using the federal tax rate of 21%, and combined state tax rates, net of federal benefit, of approximately 3% for 2021 and 4% for 2020.

11.    Equity

Dividends and Distributions

Our board of directors declared the following dividends in 2020 and 2021:

Announced Date	Record Date		Pay Date	Amount per share
2/20/2020	4/2/2020		4/10/2020	$	0.34
6/5/2020	7/2/2020		7/9/2020	0.34
8/6/2020	10/2/2020		10/9/2020	0.34
11/5/2020	12/28/2020	(1)	01/8/2021	0.34
2/18/2021	04/5/2021		04/12/2021	0.35
5/4/2021	7/2/2021		7/9/2021	0.35
8/5/2021	10/1/2021		10/8/2021	0.35

(1) This dividend was treated as a distribution in 2021 for tax purposes.

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Equity Offerings

We have an effective universal shelf registration statement registering the potential offer and sale, from time to time and in one or more offerings, of any combination of our common stock, preferred stock, depositary shares, debt securities, warrants and rights (collectively referred to as the “securities”). We may offer the securities directly, through agents, or to or through underwriters by means of ordinary brokers’ transactions on the NYSE or otherwise at market prices prevailing at the time of sale or at negotiated prices and may include “at the market” (“ATM”) offerings to or through a market maker or into an existing trading market on an exchange or otherwise. We completed the following public offerings (including ATM issuances) of our common stock during 2021 and 2020:

Date/Period	Common Stock Offerings	Shares Issued	Price Per Share (2)		Net Proceeds (1)
		(amounts in millions, except per share amounts)
Q1 2020	ATM	4.500	$	25.84	$	115
Q2 2020	ATM	1.938	23.10		44
Q3 2020	ATM	0.875	33.81		29
Q4 2020	ATM	2.204	50.35		110
Q1 2021	ATM	1.639	63.55		103
Q2 2021	None	—	—		—
Q3 2021	ATM	0.857	57.56		49

(1)Net proceeds from the offerings are shown after deducting underwriting discounts, commissions and other offering costs.

(2)Represents the average price per share at which investors in our ATM offerings purchased our shares.

Equity-based Compensation Awards under our 2013 Plan

We have issued equity awards that vest from 2022 to 2025 subject to service, performance and market conditions. During the nine months ended September 30, 2021, our board of directors awarded employees and directors 434,159 shares of restricted stock, restricted stock units and LTIP Units that vest from 2022 to 2025. As of September 30, 2021, we have concluded that it is probable that the performance conditions will be met for previously issued restricted stock awards with performance conditions. Refer to Note 4 to our financial statements in this Form 10-Q for background on the LTIP Units.

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For the three and nine months ended September 30, 2021 we recorded $4 million and $14 million of stock based compensation, respectively, compared to $4 million and $12 million during the three and nine months ended September 30, 2020. Of the current nine-month period expense, $2 million is related to the acceleration of compensation expense related to an employee with a change in employment status that occurred in the first quarter of 2021. The total unrecognized compensation expense related to awards of shares of restricted stock and restricted stock units was approximately $19 million as of September 30, 2021. We expect to recognize compensation expense related to our equity awards over a weighted-average term of approximately 2 years. A summary of the unvested shares of restricted common stock that have been issued is as follows:

	Restricted Shares of Common Stock	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	750,242	$	20.08	$	15.1
Granted	194,077	32.93		6.4
Vested	(576,880)	19.50		(11.3)
Forfeited	(262)	28.59		—
Ending Balance — December 31, 2020	367,177	$	27.77	$	10.2
Granted	80,886	59.41		4.8
Vested	(250,758)	29.22		(7.3)
Forfeited	(50)	63.59		—
Ending Balance — September 30, 2021	197,255	$	38.89	$	7.7

A summary of the unvested shares of restricted stock units that have market-based vesting conditions that have been issued is as follows:

	Restricted Stock Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	435,578	$	20.12	$	8.8
Granted	23,342	27.18		0.6
Incremental performance shares granted	216,932	18.99		4.1
Vested	(439,986)	19.04		(8.4)
Forfeited	(266)	25.90		—
Ending Balance — December 31, 2020	235,600	$	21.78	$	5.1
Granted	17,426	71.23		1.2
Incremental performance shares granted	171,180	20.24		3.5
Vested	(342,360)	20.24		(6.9)
Forfeited	—	—		—
Ending Balance — September 30, 2021	81,846	$	35.52	$	2.9

(1)    As discussed in Note 2 to our financial statements in this Form 10-Q, restricted stock units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers. The incremental performance shares granted relate to the vesting of an award at the 200% level.

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A summary of the unvested LTIP Units that have time-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	201,310	$	25.84	$	5.2
Granted	165,346	18.56		3.1
Vested	(80,974)	25.87		(2.1)
Forfeited	—	—		—
Ending Balance — December 31, 2020	285,682	$	21.62	$	6.2
Granted	249,573	54.73		13.7
Vested	(151,209)	21.58		(3.3)
Forfeited	—	—		—
Ending Balance — September 30, 2021	384,046	$	43.15	$	16.6

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units.

A summary of the unvested LTIP Units that have market-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	180,500	$	26.70	$	4.8
Granted	132,204	12.25		1.6
Vested	—	—		—
Forfeited	—	—		—
Ending Balance — December 31, 2020	312,704	$	20.59	$	6.4
Granted	86,274	65.28		5.6
Incremental performance shares granted	51,500	21.09		1.1
Vested	(103,000)	21.09		(2.1)
Forfeited	—	—		—
Ending Balance — September 30, 2021	347,478	$	31.61	$	11.0

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units. LTIP Units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers.

12.Earnings per Share of Common Stock

Both the net income or loss attributable to the non-controlling OP units and the non-controlling limited partners’ outstanding OP units have been excluded from the basic earnings per share and the diluted earnings per share calculations attributable to common stockholders. Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are excluded from net income available to common shareholders in the computation of earnings per share pursuant to the two-class method. Certain share-based awards are included in the diluted share count to the extent they are dilutive as discussed in Note 2 to our financial statements in this Form 10-Q. To the extent our Senior Convertible Notes are dilutive under the if-converted method, we add back the interest expense to the numerator and include the weighted average shares of potential common stock over the period issuable upon conversion of the note in the denominator in calculating dilutive EPS as described in Note 2 to our financial statements in this Form 10-Q.

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The computation of basic and diluted earnings per common share of common stock is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Numerator:	(in millions, except share and per share data)
Net income (loss) attributable to controlling stockholders and participating securities	$	(2.8)	$	21.2	$	64.2	$	57.5
Less: Dividends and distributions on participating securities	(0.2)		(0.2)		(0.7)		(0.7)
Less: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — basic	(3.0)		21.0		63.5		56.8
Add: Interest expense related to convertible notes under the if-converted method	—		0.1		1.0		0.1
Add: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — dilutive	$	(3.0)	$	21.1	$	64.5	$	56.9
Denominator:
Weighted-average number of common shares — basic	79,335,173		74,012,788		78,407,028		71,376,004
Weighted-average number of common shares — diluted	79,335,173		76,131,252		82,069,464		72,644,626
Basic earnings per common share	$	(0.04)	$	0.28	$	0.81	$	0.80
Diluted earnings per common share	$	(0.04)	$	0.28	$	0.79	$	0.78
Securities being allocated a portion of earnings:
Weighted-average number of OP units	559,686		321,261		459,848		301,582
	As of September 30, 2021		As of September 30, 2020
Participating securities:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions outstanding at period end	581,301		653,071
Potentially dilutive securities as of period end:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions	581,301		653,071
Restricted stock units	81,846		235,866
LTIP Units with market-based vesting conditions	347,478		312,704
Potential shares of common stock related to convertible notes	3,494,175		8,485,630

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13.    Equity Method Investments

We have non-controlling unconsolidated equity investments in renewable energy and energy efficiency projects as well as in a joint venture that owns land with long-term triple net lease agreements to several solar projects. We recognized income (loss) from our equity method investments of approximately $(7) million and $70 million during the three and nine months ended September 30, 2021, respectively, compared to $17 million and $33 million during the three and nine months ended September 30, 2020, respectively.

We describe our accounting for non-controlling equity investments in Note 2 to our financial statements in this Form 10-Q. The following is a summary of the consolidated financial position and results of operations of the significant entities accounted for using the equity method.

	SunStrong Capital Holdings LLC		Rosie Target Co, LLC (1)		Lighthouse Renewable HoldCo LLC (1)		Summit Ridge Capital Holdings, LLC		Vivint Solar Asset 3 Holdco Parent LLC		Other Investments (2)		Total
	(in millions)
Balance Sheet
As of June 30, 2021
Current assets	$	87	$	11	$	11	$	51	$	60	$	636	$	856
Total assets	1,624		282		482		407		441		7,900		11,136
Current liabilities	63		5		41		58		8		587		762
Total liabilities	1,282		101		130		357		353		2,586		4,809
Members' equity	342		181		352		50		88		5,314		6,327
As of December 31, 2020
Current assets	92		25		22		18		86		539		782
Total assets	1,532		299		497		268		303		7,340		10,239
Current liabilities	48		19		22		43		3		518		653
Total liabilities	1,217		118		87		243		139		2,298		4,102
Members' equity	315		181		410		25		164		5,042		6,137
Income Statement
For the six months ended June 30, 2021
Revenue	67		6		(71)		6		11		4		23
Income (loss) from continuing operations	2		(3)		(88)		(5)		4		(283)		(373)
Net income (loss)	2		(3)		(88)		(5)		4		(283)		(373)
For the six months ended June 30, 2020
Revenue	61		—		—		1		—		118		180
Income (loss) from continuing operations	(4)		—		—		(2)		—		(1)		(7)
Net income (loss)	(4)		—		—		(2)		—		(1)		(7)

(1)     Component of the Lighthouse Partnerships described in Note 6 to our financial statements in this Form 10-Q.

(2)     Represents aggregated financial statement information for investments not separately presented.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

In this Form 10-Q, unless specifically stated otherwise or the context otherwise indicates, references to “we,” “our,” “us,” and the “Company” refer to Hannon Armstrong Sustainable Infrastructure Capital, Inc., a Maryland corporation, Hannon Armstrong Sustainable Infrastructure, L.P., and any of our other subsidiaries. Hannon Armstrong Sustainable Infrastructure, L.P. is a Delaware limited partnership of which we are the sole general partner and to which we refer in this Form 10-Q as our “Operating Partnership.” Our business is focused on reducing the impact of greenhouse gases that have been scientifically linked to climate change. We refer to these gases, which are often for consistency expressed as carbon dioxide equivalents, as carbon emissions.

The following discussion is a supplement to and should be read in conjunction with the accompanying Condensed Consolidated Financial Statements and related notes and with our Annual Report on Form 10-K for the year ended December 31, 2020, as amended by our Amendment No. 1 to our Annual Report on Form 10-K for the year ended December 31, 2020 (collectively, our “2020 Form 10-K”), that was filed with the SEC.

Our Business

We invest in climate solutions developed by the leading companies in the energy efficiency, renewable energy and other sustainable infrastructure markets. We believe we are one of the first U.S. public companies solely dedicated to such climate change investments. Our goal is to generate attractive returns from a diversified portfolio of projects with long-term, predictable cash flows from proven technologies that reduce carbon emissions or increase resilience to climate change.

We are internally managed, and our management team has extensive relevant industry knowledge and experience, dating back more than 30 years. We have long-standing relationships with the leading energy service companies (“ESCOs”), manufacturers, project developers, utilities, owners and operators. Our origination strategy is to use these relationships to generate recurring, programmatic investment and fee-generating opportunities. Additionally, we have relationships with leading banks, investment banks, and institutional investors from which we are referred additional investment and fee generating opportunities.

Our investments are focused on three areas:

•Behind-the-Meter (“BTM”): distributed building or facility projects, which reduce energy usage or cost through the use of solar generation and energy storage or energy efficiency improvements, including heating, ventilation and air conditioning systems, lighting, energy controls, roofs, windows, building shells and/or combined heat and power systems;

•Grid-Connected (“GC”): projects that deploy cleaner energy sources, such as solar and wind to generate power where the off-taker or counterparty is part of the wholesale electric power grid; and

•Sustainable Infrastructure: upgraded transmission and distribution systems, water and storm water infrastructure, and other projects that improve water or energy efficiency, increase resiliency, positively impact the environment or more efficiently use natural resources.

We prefer investments in which the assets use proven technology and have a long-term, creditworthy off-taker or counterparties. For BTM assets, the off-taker or counterparty may be the building owner or occupant, and we may be secured by the installed improvements or other real estate rights. For GC assets, the off-taker or counterparty may be a utility or electric user who has entered into a contractual commitment, such as a power purchase agreement (“PPA”), to purchase power produced by a renewable energy project at a minimum price with potential price escalators for a portion of the project’s estimated life.

We completed approximately $359 million and $1.1 billion of transactions during the three and nine months ended September 30, 2021, respectively, compared to approximately $716 million and $1.1 billion during the same period in 2020. As of September 30, 2021, pursuant to our strategy of holding transactions on our balance sheet, we held approximately $3.2 billion of transactions on our balance sheet, which we refer to as our “Portfolio.” As of September 30, 2021, our Portfolio consisted of over 260 assets and we seek to manage the diversity of our Portfolio by, among other factors, project type, project operator, type of investment, type of technology, transaction size, geography, obligor and maturity. For those transactions that we choose not to hold on our balance sheet, we transfer all or a portion of the economics of the transaction, typically using securitization trusts, to institutional investors in exchange for cash and/or residual interests in the assets and in some cases, ongoing fees. As of September 30, 2021, we managed approximately $5.0 billion in assets in these securitization trusts or vehicles that are not consolidated on our balance sheet. When combined with our Portfolio, as of September 30, 2021, we manage approximately $8.2 billion of assets which we refer to as our “Managed Assets”.

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We make our investments utilizing a variety of structures including:

•equity investments in either preferred or common structures in unconsolidated entities;

•government and commercial receivables or securities, such as loans for renewable energy and energy efficiency projects; and

•real estate, such as land or other assets leased for use by GC projects typically under long-term leases.

Our equity investments in renewable energy and energy efficiency projects are operated by various renewable energy companies or by joint ventures in which we participate. These transactions allow us to participate in the cash flows associated with these projects, typically on a priority basis. Our energy efficiency debt investments are usually assigned the payment stream from the project savings and other contractual rights, often using our pre-existing master purchase agreements with the ESCOs. Our debt investments in various renewable energy or other sustainable infrastructure projects or portfolios of projects are generally secured by the installed improvements or other real estate rights. We also own, directly or through equity investments, or manage over 31,000 acres of land that are leased under long-term agreements to over 60 renewable energy projects, where our investment returns are typically senior to most project costs, debt, and equity.

We often make investments where we hold preferred or mezzanine position in a project that is subordinated to project debt and/or preferred forms of equity. Investing greater than 10% of our assets in any individual project requires the approval of a majority of our independent directors. We may adjust the mix and duration of our assets over time in order to allow us to manage various aspects of our portfolio, including expected risk-adjusted returns, macroeconomic conditions, liquidity, availability of adequate financing for our assets, and the maintenance of our REIT qualification and our exemption from registration as an investment company under the 1940 Act.

We believe we have available a broad range of financing sources as part of our strategy that are designed to increase potential returns to our stockholders. We may finance our investments through the use of non-recourse debt, recourse debt or equity and may also decide to finance such transactions through the use of off-balance sheet securitization structures. We often provide, and our sources of financing are increasingly interested in, the estimated carbon emission savings or environmental ratings associated with our financings. We believe that certain debt we have issued meets the environmental eligibility criteria for green bonds as defined by the International Capital Markets Association’s Green Bond Principles, which we believe makes our debt more attractive for many investors compared to such offerings that do not qualify under these principles.

We have a large and active pipeline of potential new opportunities that are in various stages of our underwriting process. We refer to potential opportunities as being part of our pipeline if we have determined that the project fits within our investment strategy and exhibits the appropriate risk and reward characteristics through an initial credit analysis, including a quantitative and qualitative assessment of the opportunity, as well as research on the market and sponsor. Our pipeline of transactions that could potentially close in the next 12 months consists of opportunities in which we will be the lead originator as well as opportunities in which we may participate with other institutional investors. As of September 30, 2021, our pipeline consisted of more than $3.0 billion in new equity, debt and real estate opportunities. Of our pipeline, 52% is related to BTM assets and 35% is related to GC assets, with the remainder related to other sustainable infrastructure. There can, however, be no assurance with regard to any specific terms of such pipeline transactions or that any or all of the transactions in our pipeline will be completed.

As part of our investment process, we calculate the ratio of the estimated first year of metric tons of carbon emissions avoided by our investments divided by the capital invested to quantify the carbon impact of our investments. In this calculation, which we refer to as CarbonCount®, we use emissions factor data, expressed on a CO2 equivalent basis, from the U.S. Government or the International Energy Administration to an estimate of a project’s energy production or savings to compute an estimate of metric tons of carbon emissions avoided. Refer to “MD&A — Environmental Metrics” below for a discussion of the carbon emissions avoided as a result of our investments. In addition to carbon, we also consider other environmental attributes, such as water use reduction, stormwater remediation benefits and stream restoration benefits.

We elected and qualified to be taxed as a REIT for U.S. federal income tax purposes, commencing with our taxable year ended December 31, 2013, and operate our business in a manner that will permit us to continue to maintain our exemption from registration as an investment company under the 1940 Act.

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Factors Impacting our Operating Results

We expect that our results of operations will be affected by a number of factors and will primarily depend on the size of our Portfolio, including the mix of transactions that we hold in our Portfolio, the income we receive from securitizations, syndications and other services, our Portfolio’s credit risk profile, changes in market interest rates, commodity prices, federal, state and/or municipal governmental policies, general market conditions in local, regional and national economies, our ability to qualify as a REIT and maintain our exemption from registration as an investment company under the 1940 Act, the impacts of climate change and the impact of the novel coronavirus (COVID-19). We provide a summary of the factors impacting our operating results in our 2020 Form 10-K under MD&A – Factors Impacting our Operating Results.

Critical Accounting Policies and Use of Estimates

Our financial statements are prepared in accordance with GAAP, which requires the use of estimates and assumptions that involve the exercise of judgment and use of assumptions as to future uncertainties. Understanding our accounting policies and the extent to which we make judgments and estimates in applying these policies is integral to understanding our financial statements. We believe the estimates and assumptions used in preparing our financial statements and related footnotes are reasonable and supportable based on the best information available to us as of September 30, 2021. Various uncertainties, including those surrounding COVID-19, may materially impact the accuracy of the estimates and assumptions used in the financial statements and related footnotes and, as a result, actual results may vary significantly from estimates.

We have identified the following accounting policies as critical because they require significant judgments and assumptions about highly complex and inherently uncertain matters and the use of reasonably different estimates and assumptions could have a material impact on our reported results of operations or financial condition. These critical accounting policies govern Variable Interest Entity Consolidation, Equity Method Investments, Impairment or the establishment of an allowance under Topic 326 for our Portfolio and Securitization of Financial Assets. We evaluate our critical accounting estimates and judgments on an ongoing basis and update them, as necessary, based on changing conditions. We provide additional information on our critical accounting policies and use of estimates under Item 7. MD&A—Critical Accounting Policies and Use of Estimates in our 2020 Form 10-K and under Note 2 to our financial statements in this Form 10-Q.

Financial Condition and Results of Operations

Our Portfolio

Our Portfolio totaled approximately $3.2 billion as of September 30, 2021 and included approximately $1.7 billion of BTM assets and approximately $1.5 billion of GC assets. Approximately 43% consisted of fixed-rate government and commercial receivables and debt securities, which are classified as investments, on our balance sheet. Approximately 45% of our Portfolio consisted of unconsolidated equity investments in renewable energy related projects and approximately 12% of our Portfolio was real estate leased to renewable energy projects under lease agreements. Our Portfolio consisted of over 260 transactions with an average size of $12 million and the weighted average remaining life of our Portfolio (excluding match-funded transactions) of approximately 17 years as of September 30, 2021.

Our Portfolio included the following as of September 30, 2021: 

•equity investments in either preferred or common structures in unconsolidated entities;

•government and commercial receivables, such as loans for renewable energy and energy efficiency projects;

•real estate, such as land or other assets leased for use by GC projects typically under long-term leases; and

•investments in debt securities of renewable energy or energy efficiency projects.

The table below provides details on the interest rate and maturity of our receivables and debt securities as of September 30, 2021: 

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	Balance		Maturity
	(in millions)
Fixed-rate receivables, interest rates less than 5.00% per annum	$	113	2023 to 2046
Fixed-rate receivables, interest rates from 5.00% to 6.50% per annum	95		2022 to 2056
Fixed-rate receivables, interest rates greater than 6.50% per annum	1,182		2021 to 2069
Receivables	1,390
Allowance for loss on receivables	(39)
Receivables, net of allowance	1,351
Fixed-rate investments, interest rates less than 5.00% per annum	11		2035 to 2038
Fixed-rate investments, interest rates from 5.00% to 6.50% per annum	7		2047 to 2051
Total receivables and investments	$	1,369

The table below presents, for the debt investments and real estate related holdings of our Portfolio and our interest-bearing liabilities inclusive of our credit facilities, the average outstanding balances, income earned, the interest expense incurred, and average yield or cost. Our earnings from our equity method investments are not included in this table.

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(dollars in millions)
Portfolio, excluding equity method investments
Interest income, receivables	$	26		$	23		$	75		$	68
Average balance of receivables	$	1,249		$	1,148		$	1,230		$	1,152
Average interest rate of receivables	8.3		%	8.0		%	8.2		%	7.9		%
Interest income, investments	$	—		$	—		$	1		$	2
Average balance of investments	$	17		$	44		$	29		$	59
Average interest rate of investments	3.9		%	4.0		%	3.9		%	4.3		%
Rental income	$	6		$	6		$	19		$	19
Average balance of real estate	$	357		$	360		$	358		$	361
Average yield on real estate	7.2		%	7.2		%	7.2		%	7.2		%
Average balance of receivables, investments, and real estate	$	1,624		$	1,552		$	1,618		$	1,572
Average yield from receivables, investments, and real estate	8.0		%	7.7		%	7.9		%	7.6		%
Debt
Interest expense (1)	$	27		$	26		$	79		$	66
Average balance of debt	$	2,532		$	1,926		$	2,264		$	1,663
Average cost of debt	4.3		%	5.4		%	4.7		%	5.3		%

(1) Excludes loss on debt modification or extinguishment included in interest expense in our income statement.

    The following table provides a summary of our anticipated principal repayments for our receivables and investments as of September 30, 2021:

	Payment due by Period
	Total		Less than 1 year		1-5 years		5-10 years		More than 10 years
	(in millions)
Receivables (excluding allowance)	$	1,390	$	120	$	194	$	542	$	534
Investments	18		1		2		3		12

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See Note 6 to our financial statements in this Form 10-Q for information on: 

•the anticipated maturity dates of our receivables and investments and the weighted average yield for each range of maturities as of September 30, 2021,

•the term of our leases and a schedule of our future minimum rental income under our land lease agreements as of September 30, 2021,

•the Performance Ratings of our Portfolio, and

•the receivables on non-accrual status.

For information on our residual assets relating to our securitization trusts, see Note 5 to our financial statements in this Form 10-Q. The residual assets do not have a contractual maturity date and the underlying securitized assets have contractual maturity dates until 2056.

Results of Operations

Comparison of the Three Months Ended September 30, 2021 vs. Three Months Ended September 30, 2020

	Three months ended September 30,
	2021			2020		$ Change		% Change
	(dollars in thousands)
Revenue
Interest income	$	26,236		$	23,508	$	2,728	12	%
Rental income	6,430			6,469		(39)		(1)	%
Gain on sale of receivables and investments	13,072			13,628		(556)		(4)	%
Fee income	3,144			4,984		(1,840)		(37)	%
Total Revenue	48,882			48,589		293		1	%
Expenses
Interest expense	27,349			26,085		1,264		5	%
Provision for loss on receivables	1,485			2,458		(973)		(40)	%
Compensation and benefits	12,218			9,012		3,206		36	%
General and administrative	4,964			3,918		1,046		27	%
Total expenses	46,016			41,473		4,543		11	%
Income (loss) before equity method investments	2,866		0	7,116		(4,250)		(60)	%
Income (loss) from equity method investments	(7,215)			16,506		(23,721)		(144)	%
Income (loss) before income taxes	(4,349)			23,622		(27,971)		(118)	%
Income tax (expense) benefit	1,250			(2,345)		3,595		(153)	%
Net income (loss)	$	(3,099)		$	21,277	$	(24,376)	(115)	%

•Net income decreased by $24 million due to a decrease in equity method investments income (loss) of $24 million and a $5 million increase in total expenses, offset by a $4 million change in income tax (expense) benefit. These results do not reflect the non-GAAP distributable earnings adjustments discussed in the non-GAAP financial measures section below.

•Total revenue was consistent period over period. A $3 million increase in interest income, driven primarily by a higher average Portfolio balance and rate, was offset by lower gain on sale and fee income, driven by a change in the mix of assets being securitized and lower advisory fee generating opportunities.

•Interest expense increased by $1 million primarily due to a higher average outstanding debt balance. We recorded a $1 million provision for loss on receivables as a result of loans and loan commitments made during the quarter.

•Compensation and benefits expense increased by $3 million as a result of an increase in our employee headcount and compensation. General and administrative expenses increased by $1 million due to additional investment in corporate infrastructure.

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•Income (loss) from equity method investments using HLBV allocations decreased by $24 million primarily due to the impact of increasing power prices and the resulting unrealized mark to market losses on economic hedges used by some of our projects to reduce the impact of power price fluctuations.

•Income tax (expense) benefit changed by $4 million primarily due to lower net income (loss) in the current period.

Comparison of the Nine Months Ended September 30, 2021 vs. Nine Months Ended September 30, 2020

	Nine months ended September 30, 2021
	2021		2020		$ Change		% Change
	(dollars in thousands)
Revenue
Interest income	$	76,352	$	71,046	$	5,306	7	%
Rental income	19,361		19,408		(47)		—	%
Gain on sale of receivables and investments	54,988		34,449		20,539		60	%
Fee income	8,769		13,115		(4,346)		(33)	%
Total Revenue	159,470		138,018		21,452		16	%
Expenses
Interest expense	95,394		65,884		29,510		45	%
Provision for loss on receivables	2,896		5,629		(2,733)		(49)	%
Compensation and benefits	39,850		27,223		12,627		46	%
General and administrative	14,814		11,181		3,633		32	%
Total expenses	152,954		109,917		43,037		39	%
Income (loss) before equity method investments	6,516		28,101		(21,585)		(77)	%
Income (loss) from equity method investments	69,519		32,505		37,014		114	%
Income (loss) before income taxes	76,035		60,606		15,429		25	%
Income tax (expense) benefit	(11,510)		(2,860)		(8,650)		302	%
Net income (loss)	$	64,525	$	57,746	$	6,779	12	%

•Net income increased by $7 million due to an increase of $21 million in total revenue and an increase in equity method investments income of $37 million, offset by a $43 million increase in total expenses and a $9 million increase in income tax expense. These results do not reflect the non-GAAP distributable earnings adjustments discussed in the non-GAAP financial measures section below.

•Total revenue increased by $21 million due to a $5 million increase in interest income resulting from a higher average Portfolio balance and rate and a $16 million increase in gain on sale and fee income primarily from a change in mix of assets being securitized, partially offset by lower advisory fee generating opportunities.

•Interest expense increased by $30 million due to a one time loss on the redemption of senior unsecured notes, as well as additional expense from a larger average outstanding debt balance. We recorded a provision for loss on receivables of $3 million due to loans and loan commitments made during the year.

•Compensation and benefits expense increased by $13 million as a result of an increase in our employee headcount, compensation and one-time employee-related costs. General and administrative expenses increased by $4 million due to additional investment in corporate infrastructure and charitable donations.

•Income from equity method investments increased by $37 million primarily due to new investments which were not in the portfolio in the prior period offset by the impact of increasing power prices and the resulting unrealized mark to market losses on economic hedges used by some of our projects to reduce the impact of power price fluctuations.

•Income tax (expense) benefit increased by $9 million primarily due to the increased HLBV income described above.

Non-GAAP Financial Measures

We consider the following non-GAAP financial measures useful to investors as key supplemental measures of our performance: (1) distributable earnings, (2) distributable net investment income, and (3) managed assets. These non-GAAP financial measures should be considered along with, but not as alternatives to, net income or loss as measures of our operating

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performance. These non-GAAP financial measures, as calculated by us, may not be comparable to similarly named financial measures as reported by other companies that do not define such terms exactly as we define such terms.

Distributable Earnings

We calculate distributable earnings as GAAP net income (loss) excluding non-cash equity compensation expense, provisions for loss on receivables, amortization of intangibles, non-cash provision (benefit) for taxes, losses or (gains) from modification or extinguishment of debt facilities, any one-time acquisition related costs or non-cash tax charges and the earnings attributable to our non-controlling interest of our Operating Partnership. We also make an adjustment to our equity method investments in the renewable energy projects as described below. We will use judgment in determining when we will reflect the losses on receivables in our distributable earnings, and will consider certain circumstances such as the time period in default, sufficiency of collateral as well as the outcomes of any related litigation. In the future, distributable earnings may also exclude one-time events pursuant to changes in GAAP and certain other adjustments as approved by a majority of our independent directors.

We believe a non-GAAP measure, such as distributable earnings, that adjusts for the items discussed above is and has been a meaningful indicator of our economic performance and is useful to our investors as well as management in evaluating our performance as it relates to expected dividend payments over time. As a REIT, we are required to distribute substantially all of our taxable income to investors in the form of dividends, which is a principal focus of our investors. Additionally, we believe that our investors also use distributable earnings, or a comparable supplemental performance measure, to evaluate and compare our performance to that of our peers, and as such, we believe that the disclosure of distributable earnings is useful to our investors.

Certain of our equity method investments in renewable energy and energy efficiency projects are structured using typical partnership “flip” structures where the investors with cash distribution preferences receive a pre-negotiated return consisting of priority distributions from the project cash flows, in many cases, along with tax attributes. Once this preferred return is achieved, the partnership “flips” and the common equity investor, often the operator or sponsor of the project, receives more of the cash flows through its equity interests while the previously preferred investors retain an ongoing residual interest. We have made investments in both the preferred and common equity of these structures. Regardless of the nature of our equity interest, we typically negotiate the purchase prices of our equity investments, which have a finite expected life, based on our assessment of the expected cash flows we will receive from these projects discounted back to the net present value, based on a target investment rate, with the expected cash flows to be received in the future reflecting both a return on the capital (at the investment rate) and a return of the capital we have committed to the project. We use a similar approach in the underwriting of our receivables.

Under GAAP, we account for these equity method investments utilizing the HLBV method. Under this method, we recognize income or loss based on the change in the amount each partner would receive, typically based on the negotiated profit and loss allocation, if the assets were liquidated at book value, after adjusting for any distributions or contributions made during such quarter. The HLBV allocations of income or loss may be impacted by the receipt of tax attributes, as tax equity investors are allocated losses in proportion to the tax benefits received, while the sponsors of the project are allocated gains of a similar amount. In addition, the agreed upon allocations of the project’s cash flows may differ materially from the profit and loss allocation used for the HLBV calculations.

The cash distributions for those equity method investments where we apply HLBV are segregated into a return on and return of capital on our cash flow statement based on the cumulative income (loss) that has been allocated using the HLBV method. However, as a result of the application of the HLBV method, including the impact of tax allocations, the high levels of depreciation and other non-cash expenses that are common to renewable energy projects and the differences between the agreed upon profit and loss and the cash flow allocations, the distributions and thus the economic returns (i.e. return on capital) achieved from the investment are often significantly different from the income or loss that is allocated to us under the HLBV method. Thus, in calculating distributable earnings, for certain of these investments where there are characteristics as described above, we further adjust GAAP net income (loss) to take into account our calculation of the return on capital (based upon the investment rate) from our renewable energy equity method investments, as adjusted to reflect the performance of the project and the cash distributed. We believe this equity method investment adjustment to our GAAP net income (loss) in calculating our distributable earnings measure is an important supplement to the HLBV income allocations determined under GAAP for an investor to understand the economic performance of these investments where HLBV income can differ substantially from the economic returns.

The following table provides results related to our equity method investments for the three and nine months ended September 30, 2021 and 2020.

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	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Income (loss) under GAAP	$	(7)	$	17	$	70	$	33
Distributable earnings	$	26	$	13	$	77	$	40
Return of capital/(deferred cash collections)	(13)		16		(42)		95
Cash collected	$	13	$	29	$	35	$	135

Distributable earnings does not represent cash generated from operating activities in accordance with GAAP and should not be considered as an alternative to net income (determined in accordance with GAAP), or an indication of our cash flow from operating activities (determined in accordance with GAAP), or a measure of our liquidity, or an indication of funds available to fund our cash needs, including our ability to make cash distributions. In addition, our methodology for calculating distributable earnings may differ from the methodologies employed by other companies to calculate the same or similar supplemental performance measures. Accordingly, our reported distributable earnings may not be comparable to similar metrics reported by other companies.

The table below provides a reconciliation of our GAAP net income (loss) to distributable earnings for the three and nine months ended September 30, 2021 and 2020.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2021				2020				2021				2020
	$		Per Share		$		Per Share		$		Per Share		$		Per Share
	(dollars in thousands, except per share amounts)
Net income (loss) attributable to controlling stockholders (1)	$	(2,838)	$	(0.04)	$	21,175	$	0.28	$	64,159	$	0.79	$	57,491	$	0.78
Distributable earnings adjustments:
Reverse GAAP (income) loss from equity method investments	7,215				(16,506)				(69,519)				(32,505)
Equity method investments earnings	25,898				13,258				76,570				40,361
Equity-based compensation charges	3,715				4,091				13,503				11,615
Provision for loss on receivables	1,485				2,458				2,896				5,629
Loss (gain) on debt modification or extinguishment	—				—				16,083				—
Amortization of intangibles	823				823				2,468				2,469
Non-cash provision (benefit) for income taxes	(1,250)				2,345				11,510				2,860
Current year earnings attributable to non-controlling interest	(261)				102				366				255
Distributable earnings (2)	$	34,787	$	0.41	$	27,746	$	0.36	$	118,036	$	1.42	$	88,175	$	1.19

(1)The per share data reflects GAAP diluted earnings per share and is the most comparable GAAP measure to our distributable earnings per share.

(2)Distributable earnings per share are based on 83,912,769 shares and 83,118,733 shares for the three and nine months ended September 30, 2021 and 77,041,509 shares and 73,819,517 shares for the three and nine months ended September 30, 2020, respectively, which represents the weighted average number of fully-diluted shares outstanding including our restricted stock awards, restricted stock units, long-term incentive plan units, and the non-controlling interest in our Operating Partnership. We include any potential common stock issuance in this calculation related to our convertible notes using the treasury stock method and any potential common stock issuances related to share based compensation units in the amount we believe is reasonably certain to vest. To the extent a convertible note is converted during the period, we include its dilution using the treasury stock method until the date of conversion, after which we include the shares issued upon conversion. We believe the use of the treasury stock method is an appropriate representation of the potential dilution when considering the economic behaviors of the holders of the instrument.

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Distributable Net Investment Income

We have a portfolio of investments in climate solutions that we finance using a combination of debt and equity. We calculate distributable net investment income by adjusting GAAP-based net investment income for those distributable earnings adjustments described above that impact investment income. We believe that this measure is useful to investors as it shows the recurring income generated by our Portfolio after the associated interest cost of debt financing. Our management also uses distributable net investment income in this way. Our non-GAAP distributable net investment income measure may not be comparable to similarly titled measures used by other companies.

The following is a reconciliation of our GAAP-based net investment income to our distributable net investment income:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(in thousands)
Interest income	$	26,236	$	23,508	$	76,352	$	71,046
Rental income	6,430		6,469		19,361		19,408
GAAP-based investment revenue	32,666		29,977		95,713		90,454
Interest expense	27,349		26,085		95,394		65,884
GAAP-based net investment income	5,317		3,892		319		24,570
Equity method earnings adjustment	25,898		13,258		76,570		40,361
Loss (gain) on debt modification or extinguishment	—		—		16,083		—
Amortization of real estate intangibles	772		772		2,317		2,317
Distributable net investment income	$	31,987	$	17,922	$	95,289	$	67,248

Managed Assets

As we both consolidate assets on our balance sheet and securitize assets off-balance sheet, certain of our receivables and other assets are not reflected on our balance sheet where we may have a residual interest in the performance of the investment, such as servicing rights or a retained interest in cash flows. Thus, we present our investments on a non-GAAP “Managed Assets” basis, which assumes that securitized receivables are not sold. We believe that our Managed Asset information is useful to investors because it portrays the amount of both on- and off-balance sheet receivables that we manage, which enables investors to understand and evaluate the credit performance associated with our portfolio of receivables, investments and residual assets in off-balance sheet securitized receivables. Our management also uses Managed Assets in this way. Our non-GAAP Managed Assets measure may not be comparable to similarly titled measures used by other companies.

The following is a reconciliation of our GAAP-based Portfolio to our Managed Assets:

	As of
	September 30, 2021		December 31, 2020
	(in millions)
Equity method investments	$	1,468	$	1,280
Government receivables	126		248
Commercial receivables, net of allowance	1,225		965
Real estate	357		359
Investments	18		55
GAAP-based Portfolio	3,194		2,907
Assets held in securitization trusts	5,041		4,308
Managed Assets	$	8,235	$	7,215

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Other Metrics

Portfolio Yield

We calculate portfolio yield as the weighted average underwritten yield of the investments in our Portfolio as of the end of the period. Underwritten yield is the rate at which we discount the expected cash flows from the assets in our Portfolio to determine our purchase price. In calculating underwritten yield, we make certain assumptions, including the timing and amounts of cash flows generated by our investments, which may differ from actual results, and may update this yield to reflect our most current estimates of project performance. We believe that portfolio yield provides an additional metric to understand certain characteristics of our Portfolio as of a point in time. Our management uses portfolio yield this way and we believe that our investors use it in a similar fashion to evaluate certain characteristics of our Portfolio compared to our peers, and as such, we believe that the disclosure of portfolio yield is useful to our investors.

Our Portfolio totaled approximately $3.2 billion as of September 30, 2021. Unlevered portfolio yield was 7.6% as of both September 30, 2021 and December 31, 2020. See Note 6 to our financial statements and MD&A - Our Business in this Form 10-Q for additional discussion of the characteristics of our portfolio as of September 30, 2021.

Environmental Metrics

As part of our investment process, we calculate the ratio of the estimated first year of metric tons of carbon emissions avoided by our investments divided by the capital invested to understand the impact our investments are having on climate change. In this calculation, which we refer to as CarbonCount®, we apply emissions factor data from the U.S. Government or the International Energy Administration to an estimate of a project’s energy production or savings to compute an estimate of metric tons of carbon emissions avoided. We estimate that our investments originated during the quarter ended September 30, 2021, will avoid annual carbon emissions by approximately 101,000 metric tons, equating to a CarbonCount® of 0.30. We estimate that our investments made since 2013 have cumulatively avoided annual carbon emissions by over 17 million metric tons.

Liquidity and Capital Resources

Liquidity is a measure of our ability to meet potential short term (within one year) and long term cash requirements, including ongoing commitments to repay borrowings, fund and maintain our current and future assets, make distributions to our stockholders and other general business needs. We will use significant cash to make investments in climate solutions, repay principal and interest on our borrowings, make distributions to our stockholders and fund our operations. We use borrowings as part of our financing strategy to increase potential returns to our stockholders and have available to us a broad range of financing sources. We finance our investments primarily with non-recourse or recourse debt, equity and off-balance sheet securitization structures.

We have adequate liquidity as of September 30, 2021, with unrestricted cash balances of $413 million, an unsecured revolving credit facility with an unused capacity of $375 million, and $75 million of available capacity in our secured revolving credit facilities. During 2021, in addition to entering into our $400 million unsecured revolving credit facility, we have issued $152 million in equity, and issued $1 billion in senior unsecured notes, with $500 million being used to redeem our 2024 senior unsecured notes. $136 million of our 2022 senior convertible notes were converted into equity in the third quarter, representing a non-cash settlement of those notes. In the third quarter we established our $100 million CarbonCount(c) Green Commercial Paper Notes Program, offering us another potential short-term liquidity source. As of September 30, 2021, we had $449 million of non-recourse borrowings. We have $1.8 billion of senior unsecured notes and $158 million of convertible notes outstanding. We also continue to utilize off-balance sheet securitization transactions, where we transfer the loans or other assets we originate to securitization trusts or other bankruptcy remote special purpose funding vehicles that are not consolidated on our balance sheet. We have continued to complete gain on sale securitization transactions with large institutional investors such as life insurance companies. As of September 30, 2021, the outstanding principal balance of our assets financed through the use of these off-balance sheet transactions was approximately $5.0 billion.

In addition to general operational obligations, which are typically paid as incurred, and dividends, which are declared by our board of directors quarterly, we will have future cash needs related to the maturity of the non-amortizing balances of our Senior Unsecured Notes and the balances of our credit facilities. We also have maturities related to our non-recourse debt and Senior Convertible Notes. However, as it relates to the non-recourse debt, to the extent there are not sufficient cash flows received from those investments pledged as collateral, the investor has no recourse against other corporate assets to recover any shortfalls and corporate cash contributions would not be required. As it relates to the Senior Convertible Notes, it is possible those obligations will be settled with the issuance of shares. For further information on non-recourse debt and our Senior Convertible Notes, see Note 8 to our financial statements of this Form 10-Q.

The maturity profile of these obligations are as follows (excluding non-recourse debt):

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For further information on non-recourse debt and our convertible notes, see Note 8 to our financial statements of this Form 10-Q.

We plan to raise additional equity capital and continue to use fixed and floating rate borrowings, which may be in the form of additional bank credit facilities (including term loans and revolving facilities), warehouse facilities, repurchase agreements, and public and private debt issuances as a means of financing our business. We also expect to use both on-balance sheet and off-balance sheet securitizations. We may also consider the use of separately funded special purpose entities or funds to allow us to expand the investments that we make or to manage the Portfolio diversification.

The decision on how we finance specific assets or groups of assets is largely driven by risk and portfolio and financial management considerations, including the potential for gain on sale or fee income, as well as the overall interest rate environment, prevailing credit spreads and the terms of available financing and market conditions. During periods of market disruptions, certain sources of financing may be more readily accessible than others which may impact our financing decisions. Over time, as market conditions change, we may use other forms of debt and equity in addition to these financing arrangements.

The amount of financial leverage we may deploy for particular assets will depend upon the availability of particular types of financing and our assessment of the credit, liquidity, price volatility and other risks of those assets, the interest rate environment and the credit quality of our financing counterparties. As shown in the table below, our debt to equity ratio was approximately 1.6 to 1 as of September 30, 2021, below our current board-approved leverage limit of 2.5 to 1. Our percentage of fixed rate debt was approximately 99% as of September 30, 2021, which is within our targeted fixed rate debt percentage range of 75% to 100%.

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The calculation of our fixed-rate debt and financial leverage is shown in the chart below: 

	September 30, 2021		% of Total		December 31, 2020		% of Total
	(dollars in millions)				(dollars in millions)
Floating-rate borrowings	$	25	1	%	$	23	1	%
Fixed-rate debt	2,365		99	%	2,166		99	%
Total debt (1)	$	2,390	100	%	$	2,189	100	%
Equity	$	1,473			$	1,210
Leverage	1.6 to 1				1.8 to 1

(1)Floating-rate borrowings include borrowings under our floating-rate credit facilities. Debt excludes securitizations that are not consolidated on our balance sheet.

We intend to use financial leverage for the primary purpose of financing our Portfolio and business activities and not for the purpose of speculating on changes in interest rates. While we may temporarily exceed the leverage limit, if our board of directors approves a material change to this limit, we anticipate advising our stockholders of this change through disclosure in our periodic reports and other filings under the Exchange Act.

While we generally intend to hold our target assets that we do not securitize upon acquisition as long term investments, certain of our investments may be sold in order to manage our interest rate risk and liquidity needs, to meet other operating objectives and to adapt to market conditions. The timing and impact of future sales of receivables and investments, if any, cannot be predicted with any certainty.

We believe our identified sources of liquidity will be adequate for purposes of meeting our short-term and long-term liquidity needs, which include funding future investments, debt service, operating costs and distributions to our stockholders. To qualify as a REIT, we must distribute annually at least 90% of our REIT’s taxable income without regard to the deduction for dividends paid and excluding net capital gains. These dividend requirements limit our ability to retain earnings and thereby increase the need to replenish capital for growth and our operations.

Sources and Uses of Cash

We had approximately $439 million and $310 million of unrestricted cash, cash equivalents, and restricted cash as of September 30, 2021 and December 31, 2020, respectively.

Cash flows relating to operating activities

Net cash provided by operating activities was approximately $22 million for the nine months ended September 30, 2021, driven primarily by net income of $65 million offset by adjustments for non-cash and other items of $43 million. The non-cash and other adjustments consisted of decreases of $46 million related to equity method investments, $38 million related to gains on securitizations, $10 million related to portfolio accrued interest, and $3 million related to other items. These decreases were partially offset by a loss on debt extinguishment of $15 million and by increases of $14 million related to equity-based compensation, $11 million of depreciation and amortization, $11 million related to changes in accounts payable and accrued expenses, and $3 million related to provision for loss on receivables.

Net cash provided by operating activities was approximately $52 million for the nine months ended September 30, 2020, driven primarily by net income of $58 million and adjustments for non-cash and other items of $6 million. The non-cash and other adjustments consisted of increases of $6 million related to provision for loss on receivables, $14 million related to equity method investments, $3 million of depreciation and amortization, $6 million of amortization of financing costs, $6 million in accounts payable and accrued expenses, and $12 million related to equity-based compensation. These were offset by $28 million related to gains on securitizations and $25 million related to other items.

Cash flows relating to investing activities

Net cash used in investing activities was approximately $388 million for the nine months ended September 30, 2021. We made $412 million of investments in receivables and fixed rate debt-securities, made $156 million of equity method investments, and funded escrow accounts for $12 million. We collected $91 million from the sales of financial assets, $88 million of principal payments from receivables and fixed rate debt-securities, $11 million from equity method investments in excess of income recognized to date under GAAP and received $2 million from escrow accounts and other items.

Net cash used in investing activities was approximately $138 million for the nine months ended September 30, 2020. We made $115 million of investments in receivables and fixed rate debt-securities, funded escrow accounts for $8 million and made

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$323 million of equity method investments. We collected $91 million from equity method investments representing the return of capital determined under GAAP, $97 million from receivables and fixed rate debt-securities, $110 million from the sales of financial assets, and received $10 million from escrow accounts and other items.

Cash flows relating to financing activities

Net cash provided by financing activities was approximately $495 million for the nine months ended September 30, 2021. We received $1 billion from the issuance of senior unsecured notes, $152 million of net proceeds from issuances of common stock, and $25 million of borrowings from credit facilities, which were offset by $500 million related to the redemption of senior unsecured notes, $30 million of principal prepayments on non-recourse debt, $23 million of principal payments on credit facilities, $18 million for debt issuance costs, $14 million for the payment of redemption premium on retirement of the senior unsecured notes, $14 million for withholding requirements resulting from the vesting of employee shares and paid $83 million of dividends, distributions and other items.

Net cash provided by financing activities was approximately $885 million for the nine months ended September 30, 2020. We borrowed $126 million from our credit facilities, had non-recourse debt borrowings of $16 million, issued $771 million of senior unsecured notes and $144 million of convertible notes, and received $188 million of net proceeds from issuances of common stock. We made $119 million of principal payments on non-recourse debt, $135 million of principal payments on credit facilities, paid $17 million for withholding requirements as a result of the vesting of employee shares and paid $89 million of dividends, distributions and other items.

Off-Balance Sheet Arrangements

We have relationships with non-consolidated entities or financial partnerships, such as entities often referred to as structured investment vehicles, or special purpose or variable interest entities, established to facilitate the sale of securitized assets. Other than our securitization assets (including any outstanding servicer advances) of approximately $204 million as of September 30, 2021, that may be at risk in the event of defaults or prepayments in our securitization trusts and as discussed below, and except as disclosed in Note 9 to our financial statements in this Form 10-Q, we have not guaranteed any obligations of non-consolidated entities or entered into any commitment or intent to provide additional funding to any such entities. A more detailed description of our relations with non-consolidated entities can be found in Note 2 to our financial statements in this Form 10-Q.

In connection with some of our transactions, we have provided certain limited guarantees to other transaction participants covering the accuracy of certain limited representations, warranties or covenants and provided an indemnity against certain losses from "bad acts" including fraud, failure to disclose a material fact, theft, misappropriation, voluntary bankruptcy or unauthorized transfers. In some transactions, we have also guaranteed our compliance with certain tax matters, such as negatively impacting the investment tax credit and certain other obligations in the event of a change in ownership or our exercising certain protective rights.

Dividends

U.S. federal income tax law generally requires that a REIT distribute annually at least 90% of its REIT taxable income, without regard to the deduction for dividends paid and excluding net capital gains, and that it pays tax at regular corporate rates to the extent that it annually distributes less than 100% of its REIT taxable income. Our current policy is to pay quarterly distributions, which on an annual basis will equal or exceed substantially all of our REIT taxable income. The taxable income of the REIT can vary from our GAAP earnings due to a number of different factors, including, the book to tax timing differences of income and expense recognition from our transactions as well as the amount of taxable income of our TRS distributed to the REIT. See Note 10 to our financial statements in our Form 10-K regarding the amount of our distributions that have been taxed as ordinary income to our stockholders.

Any distributions we make will be at the discretion of our board of directors and will depend upon, among other things, our actual results of operations. These results and our ability to pay distributions will be affected by various factors, including the net interest and other income from our portfolio, our operating expenses and any other expenditures. In the event that our board of directors determines to make distributions in excess of the income or cash flow generated from our assets, we may make such distributions from the proceeds of future offerings of equity or debt securities or other forms of debt financing or the sale of assets. To the extent, that in respect of any calendar year, cash available for distribution is less than our taxable income, or our declared distribution we could be required to sell assets, borrow funds or raise additional capital to make cash distributions or make a portion of the required distribution in the form of a taxable stock distribution or distribution of debt securities. We will generally not be required to make distributions with respect to activities conducted through our domestic TRS.

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To the extent that we generate taxable income, distributions to our stockholders generally will be taxable as ordinary income, although all or a portion of such distributions may be designated by us as a qualified dividend or capital gain. Beginning in 2018 (and through taxable years ending in 2025), a deduction is permitted for certain pass-through business income, including “qualified REIT dividends” (generally, dividends received by a REIT shareholder that are not designated as capital gain dividends or qualified dividend income), which will allow U.S. individuals, trusts and estates to deduct up to 20% of such amounts, subject to certain limitations, resulting in an effective maximum U.S. federal income tax rate of 29.6% on such qualified REIT dividends. In the event we make distributions to our stockholders in excess of our taxable income, the excess will constitute a return of capital. In addition, a portion of such distributions may be taxable stock dividends payable in our shares. We will furnish annually to each of our stockholders a statement setting forth distributions paid during the preceding year and their characterization as ordinary income, return of capital, qualified dividend income or capital gain.

The dividends declared in 2020 and 2021 are described in Note 11 to our financial statements in this Form 10-Q.

Book Value Considerations

As of September 30, 2021, we carried only our investments and residual assets in securitized financial assets at fair value on our balance sheet. As a result, in reviewing our book value, there are a number of important factors and limitations to consider. Other than our investments and the residual assets in securitized financial assets that are carried on our balance sheet at fair value as of September 30, 2021, the carrying value of our remaining assets and liabilities are calculated as of a particular point in time, which is largely determined at the time such assets and liabilities were added to our balance sheet using a cost basis in accordance with GAAP. Other than the allowance for current expected credit losses applied to our government and commercial receivables, our remaining assets and liabilities do not incorporate other factors that may have a significant impact on their value, most notably any impact of business activities, changes in estimates, or changes in general economic conditions, interest rates or commodity prices since the dates the assets or liabilities were initially recorded. Accordingly, our book value does not necessarily represent an estimate of our net realizable value, liquidation value or our market value.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

We anticipate that our primary market risks will be related to the credit quality of our counterparties and project companies, market interest rates, the liquidity of our assets, commodity prices and environmental factors. We will seek to manage these risks while, at the same time, seeking to provide an opportunity to stockholders to realize attractive returns through ownership of our common stock. Many of these risks have been magnified due to the continuing economic disruptions caused by the COVID-19 pandemic; however, while we continue to monitor the pandemic its impact on such risks remains uncertain and difficult to predict.

Credit Risks

We source and identify quality opportunities within our broad areas of expertise and apply our rigorous underwriting processes to our transactions, which, we believe, will generally enable us to minimize our credit losses and maintain access to attractive financing. In the case of various renewable energy and other sustainable infrastructure projects, we will be exposed to the credit risk of the obligor of the project’s PPA or other long-term contractual revenue commitments, as well as to the credit risk of certain suppliers and project operators. While we do not anticipate facing significant credit risk in our assets related to government energy efficiency projects, we are subject to varying degrees of credit risk in these projects in relation to guarantees provided by ESCOs where payments under energy savings performance contracts are contingent upon achieving pre-determined levels of energy savings. We are exposed to credit risk in our other projects that do not benefit from governments as the obligor such as on balance sheet financing of projects undertaken by universities, schools and hospitals, as well as privately owned commercial projects. Our level of credit risk has increased, and is expected to continue to increase, as our strategy contemplates additional investments in mezzanine debt and equity. We seek to manage credit risk through thorough due diligence and underwriting processes, strong structural protections in our transaction agreements with customers and continual, active asset management and portfolio monitoring. Nevertheless, unanticipated credit losses could occur and during periods of economic downturn in the global economy, our exposure to credit risks from obligors increases, and our efforts to monitor and mitigate the associated risks may not be effective in reducing our credit risks.

We utilize a risk rating system to evaluate projects that we target. We first evaluate the credit rating of the obligors involved in the project using an average of the external credit ratings for an obligor, if available, or an estimated internal rating based on a third-party credit scoring system. We then estimate the probability of default and estimated recovery rate based on the obligors’ credit ratings and the terms of the contract. We also review the performance of each investment, including through, as appropriate, a review of project performance, monthly payment activity and active compliance monitoring, regular communications with project management and, as applicable, its obligors, sponsors and owners, monitoring the financial performance of the collateral, periodic property visits and monitoring cash management and reserve accounts. The results of our

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reviews are used to update the project’s risk rating as necessary. Additional detail of the credit risks surrounding our Portfolio can be found in Note 6 to our financial statements in this Form 10-Q.

Interest Rate and Borrowing Risks

Interest rate risk is highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control.

We are subject to interest rate risk in connection with new asset originations and our borrowings, including our credit facilities, and in the future, any new floating rate assets, credit facilities or other borrowings. Because short-term borrowings are generally short-term commitments of capital, lenders may respond to market conditions, making it more difficult for us to secure continued financing. If we are not able to renew our then existing borrowings or arrange for new financing on terms acceptable to us, or if we default on our covenants or are otherwise unable to access funds under any of these borrowings, we may have to curtail our origination of new assets and/or dispose of assets. We face particular risk in this regard given that we expect many of our borrowings will have a shorter duration than the assets they finance. Increasing interest rates may reduce the demand for our investments while declining interest rates may increase the demand. Both our current and future credit facilities and other borrowings may be of limited duration and are periodically refinanced at then current market rates. We attempt to reduce interest rate risks and to minimize exposure to interest rate fluctuations through the use of fixed rate financing structures, when appropriate, whereby we seek to (1) match the maturities of our debt obligations with the maturities of our assets, (2) borrow at fixed rates for a period of time or (3) match the interest rates on our assets with like-kind debt (i.e., we may finance floating rate assets with floating rate debt and fixed-rate assets with fixed-rate debt), directly or through the use of interest rate swap agreements, interest rate cap agreements or other financial instruments, or through a combination of these strategies. We expect these instruments will allow us to minimize, but not eliminate, the risk that we must refinance our liabilities before the maturities of our assets and to reduce the impact of changing interest rates on our earnings. In addition to the use of traditional derivative instruments, we also seek to mitigate interest rate risk by using securitizations, syndications and other techniques to construct a portfolio with a staggered maturity profile. We monitor the impact of interest rate changes on the market for new originations and often have the flexibility to negotiate the term of our investments to offset interest rate increases.

Typically, our long-term debt is at fixed rates or we may at times use interest rate hedges that convert most of the floating rate debt to fixed rate debt. If interest rates rise, and our fixed rate debt balance remains constant, we expect the fair value of our fixed rate debt to decrease and the value of our hedges on floating rate debt to increase. See Note 3 to our financial statements in this Form 10-Q for the estimated fair value of our fixed rate long-term debt, which is based on having the same debt service requirements that could have been borrowed at the date presented, at prevailing current market interest rates.

Our credit facilities are variable rate lines of credit with approximately $25 million outstanding as of September 30, 2021. Increases in interest rates would result in higher interest expense while decreases in interest rates would result in lower interest expense. As described above, we may use various financing techniques including interest rate swap agreements, interest rate cap agreements or other financial instruments, or a combination of these strategies to mitigate the variable interest nature of these facilities. A 50 basis point increase in LIBOR would increase the quarterly interest expense related to the $25 million in variable rate borrowings by $31 thousand. Such hypothetical impact of interest rates on our variable rate borrowings does not consider the effect of any change in overall economic activity that could occur in a rising interest rate environment. Further, in the event of such a change in interest rates, we may take actions to further mitigate our exposure to such a change. However, due to the uncertainty of the specific actions that would be taken and their possible effects, the analysis assumes no changes in our financial structure.

We record certain of our assets at fair value in our financial statements and any changes in the discount rate would impact the value of these assets. See Note 3 to our financial statements in this Form 10-Q.

Liquidity and Concentration Risk

The assets that comprise our Portfolio are not and are not expected to be publicly traded. A portion of these assets may be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly-traded securities. The illiquidity of our assets may make it difficult for us to sell such assets if the need or desire arises, including in response to changes in economic and other conditions. Certain of the projects in which we invest have one obligor and thus we are subject to concentration risk for these investments and could incur significant losses if any of these projects perform poorly or if we are required to write down the value of any of these projects. Many of our assets, or the collateral supporting those assets, are concentrated in certain geographic areas, which may make those assets or the related collateral more susceptible to natural disasters or other regional events. See also “Credit Risks” discussed above.

Commodity Price Risk

When we make equity or debt investments for a renewable energy project that acts as a substitute for an underlying commodity, we may be exposed to volatility in prices for that commodity. The performance of renewable energy projects that

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produce electricity can be impacted by volatility in the market prices of various forms of energy, including electricity, coal and natural gas. This is especially true for utility scale projects that sell power on a wholesale basis such as many of our GC projects as opposed to BTM projects which compete against the retail or delivered costs of electricity which includes the cost of transmitting and distributing the electricity to the end user.

Although we generally focus on renewable energy projects that have the majority of their operating cash flow supported by long-term PPAs or leases, many of our projects have shorter term contracts (which may have the potential of producing higher current returns) or sell their power in the open market on a merchant basis, the cash flows of such projects, and thus the repayment of, or the returns available for, our assets, are subject to risk if energy prices change. We also attempt to mitigate our exposure through structural protections. These structural protections, which are typically in the form of a preferred return mechanism, are designed to allow recovery of our capital and an acceptable return over time. When structuring and underwriting these transactions, we evaluate these transactions using a variety of scenarios, including natural gas prices remaining low for an extended period of time. Despite these protections, as low natural gas prices continue or PPAs expire, the cash flows from certain of our projects are exposed to these market conditions and we work with the projects sponsors to minimize any impact as part of our on-going active asset management and portfolio monitoring. In the case of utility scale solar projects, we focus on owning the land under the project where our rent is paid out of project operational costs before the debt or equity in the project receives any payments. Certain of the projects in which we invest may also be obligated to physically deliver energy under PPAs or related agreements, and to the extent they are unable to do so may be negatively impacted.

We believe the current low prices in natural gas will increase demand for some types of our projects, such as combined heat and power, but may reduce the demand for other projects such as renewable energy that may be a substitute for natural gas. We seek to structure our energy efficiency investments so that we typically avoid exposure to commodity price risk. However, volatility in energy prices may cause building owners and other parties to be reluctant to commit to projects for which repayment is based upon a fixed monetary value for energy savings that would not decline if the price of energy declines.

Environmental Risks

Our business is impacted by the effects of climate change, including extreme weather events, and various related regulatory responses. We discuss the risks and opportunities associated with the impacts of climate change in our Form 10-K Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Impact of climate change on our future operations. This discussion outlines potential qualitative impacts to our business, quantitative illustrations of sensitivity as well as our strategy and resilience to these risks and opportunities.

Risk Management

Our ongoing active asset management and portfolio monitoring processes provide investment oversight and valuable insight into our origination, underwriting and structuring processes. These processes create value through active monitoring of the state of our markets, enforcement of existing contracts and asset management. As described above, we engage in a variety of interest rate management techniques that seek to mitigate the economic effect of interest rate changes on the values of, and returns on, some of our assets. While we have either written off or specifically identified only two transactions amounting to approximately $19 million (net of recoveries) on the over $8 billion of loans and real estate transactions we originated since 2012, which represents an aggregate loss of approximately 0.2% on cumulative such transactions originated over this time period, there can be no assurance that we will continue to be as successful, particularly as we invest in more credit sensitive assets or more equity investments and engage in increasing numbers of transactions with obligors other than U.S. federal government agencies. We seek to manage credit risk using thorough due diligence and underwriting processes, strong structural protections in our loan agreements with customers and continual, active asset management and portfolio monitoring. Additionally, we have a Finance and Risk Committee of our board of directors which discusses and reviews policies and guidelines with respect to our risk assessment and risk management for various risks, including, but not limited to, our interest rate, counter party, credit, capital availability, and refinancing risks. As it relates to environmental risks, when we underwrite and structure our investments the environmental risks and opportunities are an integral consideration to our investment parameters. While we cannot fully protect our investments, we seek to mitigate these risks by using third-party experts to conduct engineering and weather analysis and insurance reviews as appropriate. Once a transaction has closed we continue to monitor the environmental risks to the portfolio. We further discuss our strategy to managing these risks in our Form 10-K, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Impact of climate change on our future operations.

Item 4. Controls and Procedures

The Company’s Chief Executive Officer and Chief Financial Officer, based on their evaluation of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) required by paragraph (b) of Rule 13a-15 or Rule 15d-15, have concluded that as of September 30, 2021, the Company’s disclosure controls

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and procedures were effective to give reasonable assurances to the timely collection, evaluation and disclosure of information relating to the Company that would potentially be subject to disclosure under the Exchange Act and the rules and regulations promulgated thereunder.

Notwithstanding the foregoing, a control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that it will detect or uncover failures within the Company to disclose material information otherwise required to be set forth in our periodic reports.

Changes in Internal Controls over Financial Reporting

There have been no changes in the Company’s “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the three-month period ended September 30, 2021, that have materially affected, or was reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may be involved in various claims and legal actions in the ordinary course of business. As of September 30, 2021, we are not currently subject to any legal proceedings that are likely to have a material adverse effect on our financial position, results of operations or cash flows.

Item 1A. Risk Factors

For a discussion of our potential risks and uncertainties, see the information in Item 1A. “Risk Factors” of our 2020 Form 10-K, filed with the SEC, which is accessible on the SEC’s website at www.sec.gov.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

During the nine months ended September 30, 2021, certain of our employees surrendered common stock owned by them to satisfy their federal and state tax obligations associated with the vesting of their restricted stock awards.

The table below summarizes our repurchases of common stock during 2021. These repurchases are related to the surrender of common stock by certain of our employees to satisfy their tax and other compensation related withholdings associated with the vesting of restricted stock. The price paid per share is based on the closing price of our common stock as of the date of the withholding.

Period	Total number of shares purchased	Average price per share		Total number of shares purchased as part of publicly announced plans or programs	Maximum number of shares that may yet be purchased under the plans or programs
March 1 - March 31, 2021	195,700	$	53.08	N/A	N/A
April 1 - April 30, 2021	6,484	56.31		N/A	N/A
May 1 - May 31, 2021	67,593	48.30		N/A	N/A

There were no OP units held by our non-controlling interest holders exchanged for shares of our common stock during the nine months ended September 30, 2021.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

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Item 6. Exhibits

Exhibit number	Exhibit description
3.1	Articles of Amendment and Restatement of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (incorporated by reference to Exhibit 3.1 to the Registrant’s Form 10-Q for the quarter ended June 30, 2013 (No. 001-35877), filed on August 9, 2013)
3.2	Bylaws of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (incorporated by reference to Exhibit 3.2 to the Registrant’s Form 10-Q for the quarter ended June 30, 2013 (No. 001-35877), filed on August 9, 2013)
3.3	Amended and Restated Agreement of Limited Partnership of Hannon Armstrong Sustainable Infrastructure, L.P. (incorporated by reference to Exhibit 3.3 to the Registrant’s Form 10-Q for the quarter ended June 30, 2013 (No. 001-35877), filed on August 9, 2013)
4.1	Specimen Common Stock Certificate of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (incorporated by reference to Exhibit 4.1 to the Registrant’s Form S-11 (No. 333-186711), filed on April 12, 2013)
4.2	Indenture, dated as of August  22, 2017, between Hannon Armstrong Sustainable Infrastructure Capital, Inc. and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 4.1 to the Registrant’s Form 8-K (No. 001-35877), filed on August 22, 2017)
4.3	First Supplemental Indenture, dated as of August 22, 2017, between Hannon Armstrong Sustainable Infrastructure Capital, Inc. and U.S. Bank National Association, as Trustee (including the form of 4.125% Convertible Senior Note due 2022) (incorporated by reference to Exhibit 4.2 to the Registrant’s Form 8-K (No. 001-35877), filed on August 22, 2017)
4.4	Second Supplemental Indenture, dated as of August 21, 2020, between Hannon Armstrong Sustainable Infrastructure Capital, Inc. and U.S. Bank National Association, as Trustee (including the form of 0% Convertible Senior Note due 2023) (incorporated by reference to Exhibit 4.1 to the Registrant's Form 8-K (No. 001-35877), filed on August 21, 2020).
4.5	Indenture, dated as of April 21, 2020, between HAT Holdings I LLC and HAT Holdings II LLC, as issuers, and Hannon Armstrong Sustainable Infrastructure Capital, Inc., Hannon Armstrong Sustainable Infrastructure, L.P., and Hannon Armstrong Capital, LLC, as guarantors, and U.S. Bank National Association, as trustee (including the form of HAT Holdings I LLC and HAT Holdings II LLC’s 6.00% Senior Notes due 2025). (incorporated by reference to Exhibit 4.1 on the Registrant's Form 8-K (No. 001-35877), filed on April 21, 2020)
4.6	Indenture, dated as of August 25, 2020, between HAT Holdings I LLC and HAT Holdings II LLC, as issuers, and Hannon Armstrong Sustainable Infrastructure Capital, Inc., Hannon Armstrong Sustainable Infrastructure, L.P., and Hannon Armstrong Capital, LLC, as guarantors, and U.S. Bank National Association, as trustee (including the form of HAT Holdings I LLC and HAT Holdings II LLC’s 3.750% Senior Notes due 2030) (incorporated by reference to Exhibit 4.1 on the Registrant's Form 8-K (No. 011-35877), filed on August 25, 2020).
4.7	Indenture, dated as of June 28, 2021, between HAT Holdings I LLC and HAT Holdings II LLC, as issuers, and Hannon Armstrong Sustainable Infrastructure Capital, Inc., Hannon Armstrong Sustainable Infrastructure, L.P., and Hannon Armstrong Capital, LLC, as guarantors, and U.S. Bank National Association, as trustee (including the form of HAT Holdings I LLC and HAT Holdings II LLC’s 3.375% Senior Notes due 2026) (incorporated by reference to Exhibit 4.1 on the Registrant's Form 8-K (No. 011-35877), filed on June 28, 2021).
31.1*	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2*	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1**	Certification of Chief Executive Officer pursuant to section 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes—Oxley Act of 2002
32.2**	Certification of Chief Financial Officer pursuant to section 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes—Oxley Act of 2002
101.INS*	XBRL Instance Document
101.SCH*	Inline XBRL Taxonomy Extension Schema
101.CAL*	Inline XBRL Taxonomy Extension Calculation Linkbase

- 50 -

101.DEF*	Inline XBRL Taxonomy Extension Definition Linkbase
101.LAB*	Inline XBRL Taxonomy Extension Label Linkbase
101. PRE*	Inline XBRL Taxonomy Extension Presentation Linkbase
104	Cover Page Interactive Data File Included as Exhibit 101 (embedded within the Inline XBRL document)

*    Filed herewith.

**    Furnished herewith.

- 51 -

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC. (Registrant)
Date: November 5, 2021	/s/ Jeffrey W. Eckel
	Jeffrey W. Eckel
	Chairman, Chief Executive Officer and President
Date: November 5, 2021	/s/ Jeffrey A. Lipson
	Jeffrey A. Lipson
	Chief Financial Officer, Chief Operating Officer and Executive Vice President
Date: November 5, 2021	/s/ Charles W. Melko
	Charles W. Melko
	Chief Accounting Officer, Treasurer and Senior Vice President

- 52 -

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, Jeffrey W. Eckel, certify that:

I have reviewed this Quarterly Report on Form 10-Q of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “registrant”);

1.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

2.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

3.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal controls over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

4.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the Audit Committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 5, 2021	By:	/s/ Jeffrey W. Eckel
	Name: Title:	Jeffrey W. Eckel Chairman, Chief Executive Officer and President

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, Jeffrey A. Lipson, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “registrant”);

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal controls over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the Audit Committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	November 5, 2021	By:	/s/ Jeffrey A. Lipson
		Name: Title	Jeffrey A. Lipson Chief Financial Officer, Chief Operating Officer and Executive Vice President

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002, 10 U.S.C. SECTION 1350

    In connection with the Quarterly Report on Form 10-Q of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “Company”) for the period ended September 30, 2021, to be filed with the Securities and Exchange Commission on or about the date hereof (the “report”), I, Jeffrey W. Eckel, Chief Executive Officer and President of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

1.The report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Company.

    It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

Date: November 5, 2021	By:	/s/ Jeffrey W. Eckel
	Name: Title:	Jeffrey W. Eckel Chairman, Chief Executive Officer and President

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002, 10 U.S.C. SECTION 1350

    In connection with the Quarterly Report on Form 10-Q of Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “Company”) for the period ended September 30, 2021, to be filed with the Securities and Exchange Commission on or about the date hereof (the “report”), I, Jeffrey A. Lipson, Chief Financial Officer, Chief Operating Officer and Executive Vice President of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

1.The report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Company.

    It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

Date: November 5, 2021	By:	/s/ Jeffrey A. Lipson
	Name: Title:	Jeffrey A. Lipson Chief Financial Officer, Chief Operating Officer and Executive Vice President

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 03, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-35877
Entity Registrant Name	HANNON ARMSTRONG SUSTAINABLE INFRASTRUCTURE CAPITAL, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	46-1347456
Entity Address, Address Line One	1906 Towne Centre Blvd
Entity Address, Address Line Two	Suite 370
Entity Address, City or Town	Annapolis,
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	21401
City Area Code	410
Local Phone Number	571-9860
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	HASI
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		84,693,740
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001561894
Current Fiscal Year End Date	--12-31

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 413,259	$ 286,250
Equity method investments	1,468,282	1,279,651
Loans	1,351,000
Real estate	356,861	359,176
Investments	17,637	55,377
Securitization assets	203,625	164,342
Other assets	130,046	100,364
Total Assets	3,940,863	3,459,067
Liabilities:
Accounts payable, accrued expenses and other	77,395	59,944
Credit facilities	25,483	22,591
Non-recourse debt (secured by assets of $574 million and $723 million, respectively)	438,051	592,547
Senior unsecured notes	1,771,264	1,283,335
Convertible notes	155,285	290,501
Total Liabilities	2,467,478	2,248,918
Stockholders’ Equity:
Preferred stock, par value $0.01 per share, 50,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, par value $0.01 per share, 450,000,000 shares authorized, 84,275,179 and 76,457,415 shares issued and outstanding, respectively	843	765
Additional paid in capital	1,671,747	1,394,009
Accumulated deficit	(225,933)	(204,112)
Accumulated other comprehensive income (loss)	7,746	12,634
Non-controlling interest	18,982	6,853
Total Stockholders’ Equity	1,473,385	1,210,149
Total Liabilities and Stockholders’ Equity	3,940,863	3,459,067
Commercial receivables
Assets
Loans	1,224,741	965,452
Government receivables
Assets
Loans	$ 126,412	$ 248,455

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for loss on receivables	$ 39	$ 36
Non-recourse debt, secured by assets	$ 574	$ 723
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	450,000,000	450,000,000
Common stock, shares issued (in shares)	84,275,179	76,457,415
Common stock, shares outstanding (in shares)	84,275,179	76,457,415

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue
Interest income	$ 26,236	$ 23,508	$ 76,352	$ 71,046
Rental income	6,430	6,469	19,361	19,408
Gain on sale of receivables and investments	13,072	13,628	54,988	34,449
Fee income	3,144	4,984	8,769	13,115
Total revenue	48,882	48,589	159,470	138,018
Expenses
Interest expense	27,349	26,085	95,394	65,884
Provision for loss on receivables	1,485	2,458	2,896	5,629
Compensation and benefits	12,218	9,012	39,850	27,223
General and administrative	4,964	3,918	14,814	11,181
Total expenses	46,016	41,473	152,954	109,917
Income before equity method investments	2,866	7,116	6,516	28,101
Income (loss) from equity method investments	(7,215)	16,506	69,519	32,505
Income (loss) before income taxes	(4,349)	23,622	76,035	60,606
Income tax (expense) benefit	1,250	(2,345)	(11,510)	(2,860)
Net income (loss)	(3,099)	21,277	64,525	57,746
Net income (loss) attributable to non-controlling interest holders	(261)	102	366	255
Net income (loss) attributable to controlling stockholders	$ (2,838)	$ 21,175	$ 64,159	$ 57,491
Basic earnings (loss) per common share (in usd per share)	$ (0.04)	$ 0.28	$ 0.81	$ 0.80
Diluted earnings (loss) per common share (in usd per share)	$ (0.04)	$ 0.28	$ 0.79	$ 0.78
Weighted average common shares outstanding—basic (in shares)	79,335,173	74,012,788	78,407,028	71,376,004
Weighted average common shares outstanding—diluted (in shares)	79,335,173	76,131,252	82,069,464	72,644,626

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (3,099)	$ 21,277	$ 64,525	$ 57,746
Unrealized gain (loss) on available-for-sale securities, net of tax benefit (provision) of $0.1 million and $0.3 million for the three and nine months ended September 30, 2021 and $0.0 million and $(1.1) million for the three and nine months ended September 30, 2020	(900)	872	(8,268)	12,280
Unrealized gain (loss) on interest rate swaps, net of tax benefit (provision) of $0.9 million and $(1.0) million for the three and nine months ended September 30, 2021 and $(0.3) million and $1.3 million for the three and nine months ended September 30, 2020	(2,703)	990	3,351	(4,071)
Comprehensive income (loss)	(6,702)	23,139	59,608	65,955
Less: Comprehensive income (loss) attributable to non-controlling interest holders	(274)	110	337	289
Comprehensive income (loss) attributable to controlling stockholders	$ (6,428)	$ 23,029	$ 59,271	$ 65,666

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss) on interest rate swaps	$ (0.1)	$ 0.0	$ 0.3	$ 1.1
Unrealized gain (loss) on available-for-sale securities, benefit (provision)	$ (0.9)	$ 0.3	$ 1.0	$ (1.3)

XML

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Adoption of ASU 2016-13, net of tax effect	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Deficit Adoption of ASU 2016-13, net of tax effect	Accumulated Other Comprehensive Income (Loss)	Non-controlling interests	Non-controlling interests Adoption of ASU 2016-13, net of tax effect
Beginning Balance (in shares) at Dec. 31, 2019			66,338
Beginning Balance at Dec. 31, 2019	$ 939,912	$ (14,105)	$ 663	$ 1,102,303	$ (169,786)	$ (14,031)	$ 3,300	$ 3,432	$ (74)
Ending Balance (in shares) at Jun. 30, 2020			73,319
Ending Balance at Jun. 30, 2020	1,067,964		$ 733	1,250,976	(198,719)		9,619	5,355
Beginning Balance (in shares) at Dec. 31, 2019			66,338
Beginning Balance at Dec. 31, 2019	939,912	$ (14,105)	$ 663	1,102,303	(169,786)	$ (14,031)	3,300	3,432	$ (74)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	57,746				57,491			255
Unrealized gain (loss) on available-for-sale securities	12,280						12,222	58
Unrealized gain (loss) on interest rate swaps	(4,071)						(4,048)	(23)
Issued shares of common stock (in shares)			7,319
Issued shares of common stock	188,798		$ 75	188,723
Equity-based compensation	11,641			8,098				3,543
Issuance (repurchase) of vested equity-based compensation shares (in shares)			537
Issuance (repurchase) of vested equity-based compensation shares	(17,288)		$ 5	(17,293)
Other (in shares)			59
Other	53			913				(860)
Dividends and distributions	(77,229)				(76,588)			(641)
Ending Balance (in shares) at Sep. 30, 2020			74,253
Ending Balance at Sep. 30, 2020	1,097,737		$ 743	1,282,744	(202,914)		11,474	5,690
Beginning Balance (in shares) at Jun. 30, 2020			73,319
Beginning Balance at Jun. 30, 2020	1,067,964		$ 733	1,250,976	(198,719)		9,619	5,355
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	21,277				21,175			102
Unrealized gain (loss) on available-for-sale securities	872						864	8
Unrealized gain (loss) on interest rate swaps	990						991	(1)
Issued shares of common stock (in shares)			875
Issued shares of common stock	29,248		$ 10	29,238
Equity-based compensation	2,902			1,617				1,285
Other (in shares)			59
Other	54			913				(859)
Dividends and distributions	(25,570)				(25,370)			(200)
Ending Balance (in shares) at Sep. 30, 2020			74,253
Ending Balance at Sep. 30, 2020	1,097,737		$ 743	1,282,744	(202,914)		11,474	5,690
Ending Balance (in shares) at Dec. 31, 2020			76,457
Ending Balance at Dec. 31, 2020	1,210,149		$ 765	1,394,009	(204,112)		12,634	6,853
Ending Balance (in shares) at Jun. 30, 2021			78,419
Ending Balance at Jun. 30, 2021	1,322,547		$ 784	1,487,103	(193,530)		11,335	16,855
Beginning Balance (in shares) at Dec. 31, 2020			76,457
Beginning Balance at Dec. 31, 2020	1,210,149		$ 765	1,394,009	(204,112)		12,634	6,853
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	64,525				64,159			366
Unrealized gain (loss) on available-for-sale securities	(8,268)						(8,219)	(49)
Unrealized gain (loss) on interest rate swaps	3,351						3,331	20
Issued shares of common stock (in shares)			2,496
Issued shares of common stock	151,701		$ 25	151,676
Equity-based compensation	17,965			5,226				12,739
Conversion of convertible notes (in shares)			4,999
Conversion of convertible notes	134,906		$ 50	134,856
Issuance (repurchase) of vested equity-based compensation shares (in shares)			323
Issuance (repurchase) of vested equity-based compensation shares	(14,017)		$ 3	(14,020)
Dividends and distributions	(86,927)				(85,980)			(947)
Ending Balance (in shares) at Sep. 30, 2021			84,275
Ending Balance at Sep. 30, 2021	1,473,385		$ 843	1,671,747	(225,933)		7,746	18,982
Beginning Balance (in shares) at Jun. 30, 2021			78,419
Beginning Balance at Jun. 30, 2021	1,322,547		$ 784	1,487,103	(193,530)		11,335	16,855
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,099)				(2,838)			(261)
Unrealized gain (loss) on available-for-sale securities	(900)						(896)	(4)
Unrealized gain (loss) on interest rate swaps	(2,703)						(2,693)	(10)
Issued shares of common stock (in shares)			857
Issued shares of common stock	48,812		$ 9	48,803
Equity-based compensation	3,715			985				2,730
Conversion of convertible notes (in shares)			4,999
Conversion of convertible notes	134,906		$ 50	134,856
Dividends and distributions	(29,893)				(29,565)			(328)
Ending Balance (in shares) at Sep. 30, 2021			84,275
Ending Balance at Sep. 30, 2021	$ 1,473,385		$ 843	$ 1,671,747	$ (225,933)		$ 7,746	$ 18,982

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income (loss)	$ 64,525	$ 57,746
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for loss on receivables	2,896	5,629
Depreciation and amortization	2,811	2,685
Amortization of financing costs	8,445	5,824
Equity-based compensation	13,503	11,615
Equity method investments	(45,684)	14,024
Non-cash gain on securitization	(37,521)	(36,866)
(Gain) loss on sale of receivables and investments	(720)	8,671
Loss on debt extinguishment	14,584	0
Changes in accounts payable and accrued expenses	11,606	5,906
Change in accrued interest on receivables and investments	(9,516)	(21,925)
Other	(3,243)	(1,447)
Net cash provided by (used in) operating activities	21,686	51,862
Cash flows from investing activities
Equity method investments	(155,461)	(322,948)
Equity method investment distributions received	10,936	90,920
Proceeds from sales of equity method investments	300	0
Purchases of and investments in receivables	(407,517)	(92,232)
Principal collections from receivables	87,548	94,780
Proceeds from sales of receivables	75,582	52,329
Purchases of investments	(4,830)	(22,777)
Principal collections from investments	256	1,981
Proceeds from sales of investments and securitization assets	15,197	58,018
Funding of escrow accounts	(12,069)	(7,783)
Withdrawal from escrow accounts	1,538	6,300
Other	290	3,200
Net cash provided by (used in) investing activities	(388,230)	(138,212)
Cash flows from financing activities
Proceeds from credit facilities	25,000	126,000
Principal payments on credit facilities	(22,441)	(134,594)
Proceeds from issuance of non-recourse debt	0	15,938
Principal payments on non-recourse debt	(29,900)	(118,623)
Proceeds from issuance of senior unsecured notes	1,000,000	771,250
Proceeds from issuance of convertible notes	0	143,750
Redemption of senior unsecured notes	(500,000)	0
Net proceeds of common stock issuances	151,501	188,197
Payments of dividends and distributions	(83,354)	(74,295)
Withholdings on employee share vesting	(14,018)	(17,287)
Redemption premium paid	(14,101)	0
Payment of debt issuance costs	(17,672)	(14,382)
Other	(13)	(623)
Net cash provided by (used in) financing activities	495,002	885,331
Increase (decrease) in cash, cash equivalents, and restricted cash	128,458	798,981
Cash, cash equivalents, and restricted cash at beginning of period	310,331	106,586
Cash, cash equivalents, and restricted cash at end of period	438,789	905,567
Supplemental Cash Flow Information [Abstract]
Interest paid	74,962	57,310
Residual assets retained from securitization transactions	45,578	38,081
Right-of-use asset obtained in exchange for lease liability	4,628	0
Issuance of common stock from conversion of convertible notes	135,800	0
Deconsolidation of non-recourse debt	126,139	0
Deconsolidation of assets pledged for non-recourse debt	$ 130,513	$ 0

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The Company

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The Company

The Company

Hannon Armstrong Sustainable Infrastructure Capital, Inc. (the “Company”) invests in climate solutions by providing capital to leading companies in the energy efficiency, renewable energy and other sustainable infrastructure markets. Our goal is to generate attractive returns from a diversified portfolio of projects with long-term and predictable cash flows from proven technologies that reduce carbon emissions or increase resilience to climate change.

The Company and its subsidiaries are hereafter referred to as “we,” “us” or “our.” Our investments take various forms, including equity, joint ventures, real estate ownership, or lending or other financing transactions, and typically benefit from contractually committed high credit quality obligors. We also generate on-going fees through off-balance sheet securitization transactions, advisory services and asset management. We refer to the income producing assets that we hold on our balance sheet as our “Portfolio.” Our Portfolio may include:

•equity investments in either preferred or common structures in unconsolidated entities;

•government and commercial receivables, such as loans for renewable energy and energy efficiency projects;

•real estate, such as land or other assets leased for use by sustainable infrastructure projects typically under long-term leases; and

•investments in debt securities of renewable energy or energy efficiency projects.

We finance our business through cash on hand, borrowings under credit facilities and debt transactions, asset-backed securitization transactions and equity issuances. We also generate fee income through securitizations and syndications, by providing broker/dealer services and by managing and servicing assets owned by third parties.

Our common stock is listed on the New York Stock Exchange (“NYSE”) under the symbol “HASI.” We have qualified as a real estate investment trust (“REIT”) and also intend to continue to operate our business in a manner that will maintain our exemption from registration as an investment company under the Investment Company Act of 1940 (the "1940 Act"), as amended. We operate our business through, and serve as the sole general partner of, our operating partnership subsidiary, Hannon Armstrong Sustainable Infrastructure, L.P., (the “Operating Partnership”), which was formed to acquire and directly or indirectly own our assets.

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Basis of Presentation

The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and such differences could be material. These financial statements have been prepared in accordance with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2020, as filed with the SEC. In the opinion of management, all adjustments necessary to present fairly our financial position, results of operations and cash flows have been included. Our results of operations for the three- and nine-month periods ended September 30, 2021 and 2020, are not necessarily indicative of the results to be expected for the full year or any other future period. Certain information and footnote disclosures normally included in our annual consolidated financial statements have been condensed or omitted. Certain amounts in the prior years have been reclassified to conform to the current year presentation.

The consolidated financial statements include our accounts and controlled subsidiaries, including the Operating Partnership. All material intercompany transactions and balances have been eliminated in consolidation.

Following the guidance for non-controlling interests in Financial Accounting Standards Board Accounting Standards Codification (“ASC”) 810, Consolidation ("ASC 810"), references in this report to our earnings per share and our net income and stockholders’ equity attributable to common stockholders do not include amounts attributable to non-controlling interests.

Consolidation

We account for our investments in entities that are considered voting interest entities or variable interest entities (“VIEs”) under ASC 810 and assess whether we should consolidate these entities on an ongoing basis. We have established various special purpose entities or securitization trusts for the purpose of securitizing certain assets that are not consolidated in our financial statements as described below in Securitization of Financial Assets.

Since we have assessed that we have power over and receive the benefits from those special purpose entities that are formed for the purpose of holding our assets on our balance sheet, we have concluded we are the primary beneficiary and should consolidate these entities under the provisions of ASC 810. We also have certain subsidiaries we deem to be voting interest entities that we control through our ownership of voting interests and accordingly consolidate.

Certain of our equity method investments were determined to be interests in VIEs in which we are not the primary beneficiary, as we do not direct the significant activities of these entities, and thus we account for those investments as Equity Method Investments as discussed below. Our maximum exposure to loss through these investments is limited to their recorded values. However, we may provide financial commitments to these VIEs or guarantees of certain of their obligations. Certain other entities in which we have equity investments have been assessed to be voting interest entities and are not consolidated as we exert significant influence rather than control through our ownership of voting interests, and accordingly account for them as equity method investments described below.

Equity Method Investments

We have made equity investments in various renewable energy and energy efficiency projects. These investments are typically owned in holding companies (using limited liability companies (“LLCs”) taxed as partnerships) where we partner with either the operator of the project or other institutional investors. We share in the cash flows, income and tax attributes according to a negotiated schedule (which typically does not correspond with our ownership percentages). Investors, if any, in a preferred return position typically receive a priority distribution of all or a portion of the project's cash flows, and in some cases, tax attributes. Once the preferred return, if applicable, is achieved, the partnership “flips” and the operator of the project along with any other common equity investors receive a larger portion of the cash flows, with the previously preferred investors retaining an on-going residual interest.

Our equity investments in renewable energy or energy efficiency projects are accounted for under the equity method of accounting. Under the equity method of accounting, the carrying value of these equity method investments is determined based on amounts we invested, adjusted for the equity in earnings or losses of the investee allocated based on the LLC agreement, less distributions received. For the LLC agreements that contain preferences with regard to cash flows from operations, capital events and liquidation, we reflect our share of profits and losses by determining the difference between our claim on the investee’s book value at the beginning and the end of the period, which is adjusted for distributions received and contributions made. This claim is calculated as the amount we would receive if the investee were to liquidate all of its assets at the recorded amounts determined in accordance with GAAP and distribute the resulting cash to creditors and investors in accordance with their respective priorities. This method is referred to as the hypothetical liquidation at book value method (“HLBV”).

Any difference between the amount of our investment and the amount of underlying equity in net assets is generally amortized over the life of the assets and liabilities to which the difference relates. Cash distributions received from each equity method investment are classified as operating activities to the extent of cumulative earnings for each investment in our consolidated statements of cash flows. Our initial investment and additional cash distributions beyond that which are classified as operating activities are classified as investing activities in our consolidated statements of cash flows. We typically recognize earnings one quarter in arrears for certain of these investments to allow for the receipt of financial information.

We evaluate on a quarterly basis whether our investments accounted for using the equity method have an other than temporary impairment (“OTTI”). An OTTI occurs when the estimated fair value of an investment is below the carrying value and the difference is determined to not be recoverable. This evaluation requires significant judgment regarding, but not limited to, the severity and duration of the impairment; the ability and intent to hold the securities until recovery; financial condition, liquidity, and near-term prospects of the issuer; specific events; and other factors.

Government and Commercial Receivables

Government and commercial receivables (“receivables”) include project loans and receivables. These receivables are separately presented in our balance sheet to illustrate the differing nature of the credit risk related to these assets. Unless otherwise noted, we generally have the ability and intent to hold our receivables for the foreseeable future and thus they are classified as held for investment. Our ability and intent to hold certain receivables may change from time to time depending on a number of factors including economic, liquidity and capital market conditions. At inception of the arrangement, the carrying value of receivables held for investment represents the present value of the note, lease or other payments, net of any unearned fee income, which is recognized as income over the term of the note or lease using the effective interest method. Receivables that are held for investment are carried at amortized cost, net of any unamortized acquisition premiums or discounts and include

origination and acquisition costs, as applicable. Our initial investment and principal repayments of these receivables are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows. Receivables that we intend to sell in the short-term are classified as held-for-sale and are carried at the lower of amortized cost or fair value on our balance sheet, which is assessed on an individual asset basis. The purchases and proceeds from receivables that we intend to sell at origination are classified as operating activities in our consolidated statements of cash flows. Interest collected is classified as an operating activity in our consolidated statements of cash flows. Certain of our receivables may include the ability to defer required interest payments in exchange for increasing the receivable balance at the borrower's option. We generally accrue this paid-in-kind (“PIK”) interest when collection is expected, and cease accruing PIK interest if there is insufficient value to support the accrual or we expect that any portion of the principal or interest due is not collectible.

We evaluate our receivables for an allowance as determined under ASC Topic 326 Financial Instruments- Credit Losses (“Topic 326”) and for our internally derived asset performance categories included in Note 6 to our financial statements in this Form 10-Q on at least a quarterly basis and more frequently when economic or other conditions warrant such an evaluation. When a receivable becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally consider the receivable delinquent or impaired and place the receivable on non-accrual status and cease recognizing income from that receivable until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a receivable’s status significantly improves regarding the debtor’s ability to service the debt or other obligations, we will remove it from non-accrual status.

We determine our allowance based on the current expectation of credit losses over the contractual life of our receivables as required by Topic 326. We use a variety of methods in developing our allowance, including discounted cash flow analysis and probability-of-default/loss given default (“PD/LGD”) methods. In developing our estimates, we consider our historical experience with our and similar assets in addition to our view of both current conditions and what we expect to occur within a period of time for which we can develop reasonable and supportable forecasts, typically two years. For periods following the reasonable and supportable forecast period, we revert to historical information when developing assumptions used in our estimates. In developing our forecasts, we consider a number of qualitative and quantitative factors in our assessment, including a project’s operating results, loan-to-value ratio, any cash reserves, the ability of expected cash from operations to cover the cash flow requirements currently and into the future, key terms of the transaction, the ability of the borrower to refinance the transaction, other credit support from the sponsor or guarantor and the project’s collateral value. In addition, we consider the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, such as unemployment rates and power prices, the impact of any variation in weather and the historical and anticipated trends in interest rates, defaults and loss severities for similar transactions. For those assets where we record our allowance using a discounted cash flow method, we have elected to record the change in allowance due solely to the passage of time through the provision for loss on receivables in our income statement. For assets where the obligor is a publicly rated entity, we consider the published historical performance of entities with similar ratings in developing our estimate of an allowance, making adjustments determined by management to be appropriate during the reasonable and supportable forecast period. We have made certain loan commitments that are within the scope of Topic 326. When estimating an allowance for these loan commitments we consider the probability of certain amounts to be funded and apply either a discounted cash flow or PD/LGD methodology as described above. We charge off receivables against the allowance, if any, when we determine the unpaid principal balance is uncollectible, net of recovered amounts. Any provision we record for an allowance is a non-cash reconciling item to cash from operating activities in our consolidated statements of cash flows.

Real Estate

Real estate consists of land or other real property and its related lease intangibles, net of any amortization. Our real estate is generally leased to tenants on a triple net lease basis, whereby the tenant is responsible for all operating expenses relating to the property, generally including property taxes, insurance, maintenance, repairs and capital expenditures. Certain real estate transactions may be characterized as "failed sale-leaseback" transactions as defined under ASC Topic 842, Leases, and thus are accounted for similarly to our commercial receivables as described above in Government and Commercial Receivables.

For our other real estate lease transactions that are classified as operating leases, the scheduled rental revenue typically varies during the lease term and thus rental income is recognized on a straight-line basis, unless there is considerable risk as to collectability, so as to produce a constant periodic rent over the term of the lease. Accrued rental income is the aggregate difference between the scheduled rents that vary during the lease term and the income recognized on a straight-line basis and is recorded in other assets. Expenses, if any, related to the ongoing operation of leases where we are the lessor, are charged to operations as incurred. Our initial investment is classified as investing activities and income collected for rental income is classified as operating activities in our consolidated statements of cash flows.

When our real estate transactions are treated as an asset acquisition with an operating lease, we typically record our real estate purchases at cost, including acquisition and closing costs, which is allocated to each tangible and intangible asset acquired on a relative fair value basis.

The fair value of the tangible assets of an acquired leased property is determined by valuing the property as if it were vacant, and the “as-if-vacant” value is then allocated to land, building and tenant improvements, if any, based on the determination of the fair values of these assets. The as-if-vacant fair value of a property is typically determined by management based on appraisals by a qualified appraiser. In determining the fair value of the identified intangibles of an acquired property, above-market and below-market in-place lease values are valued based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining term of the lease, including renewal periods reasonably certain of being exercised by the lessee.

The capitalized off-market lease values are amortized as an adjustment of rental income over the term used to value the intangible. We also record, as appropriate, an intangible asset for in-place leases. The value of the leases in place at the time of the transaction is equal to the potential income lost if the leases were not in place. The amortization of this intangible occurs over the initial term unless management believes that it is reasonably certain that the tenant would exercise the renewal option, in which case the amortization would extend through the renewal period. If a lease were to be terminated, all unamortized amounts relating to that lease would be written off.

Investments

Investments are debt securities that meet the criteria of ASC 320, Investments-Debt and Equity Securities. We have designated our debt securities as available-for-sale and carry these securities at fair value on our balance sheet. Unrealized gains and losses, to the extent not considered to be credit related, on available-for-sale debt securities are recorded as a component of accumulated other comprehensive income (“AOCI”) in equity on our balance sheet. When a security is sold, we reclassify the AOCI to earnings based on specific identification. Our initial investment and principal repayments of these investments are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows.

We evaluate our investments for impairment on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. Our impairment assessment is a subjective process requiring the use of judgments and assumptions. Accordingly, we regularly evaluate the extent and impact of any credit deterioration associated with the financial and operating performance and value of the underlying project. We consider several qualitative and quantitative factors in our assessment. The primary factor in our assessment is the current fair value of the security, while other factors include changes in the credit rating, performance of the underlying project, key terms of the transaction, the value of any collateral and any support provided by the sponsor or guarantor.

To the extent that we have identified an impairment for a security, intend to hold the investment to maturity, and do not expect that we will be required to sell the security prior to recovery of the amortized cost basis, we will recognize only the credit component of the unrealized loss in earnings by recording an allowance against the amortized cost of the asset as required by Topic 326. We determine the credit component using the difference between the security’s amortized cost basis and the present value of its expected future cash flows, discounted using the effective interest method or its estimated collateral value. Any remaining unrealized loss due to factors other than credit is recorded in AOCI.

To the extent we hold investments with a fair value less than the amortized cost and we have made the decision to sell the security or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, we recognize the entire portion of the impairment in earnings.

Premiums or discounts on investment securities are amortized or accreted into interest income using the effective interest method.

Securitization of Financial Assets

We have established various special purpose entities or securitization trusts for the purpose of securitizing certain financial assets. We determined that the trusts used in securitizations are VIEs, as defined in ASC 810. When we conclude that we are not the primary beneficiary of certain trusts because we do not have power over those trusts' significant activities, we do not consolidate the trust. We typically serve as primary or master servicer of these trusts; however, as the servicer, we do not have the power to make significant decisions impacting the performance of the trusts.

We account for transfers of financial assets to these securitization trusts as sales pursuant to ASC 860, Transfers and Servicing (“ASC 860”), when we have concluded the transferred assets have been isolated from the transferor (i.e., put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership) and we have surrendered control over the transferred assets. When we are unable to conclude that we have been sufficiently isolated from the securitized financial assets, we treat such trusts as secured borrowings, retaining the assets on our balance sheet and recording the amounts due to the trust investor as non-recourse debt.

For transfers treated as sales under ASC 860, we have received true-sale-at-law and non-consolidation legal opinions for all of our securitization trust structures to support our conclusion regarding the transferred financial assets. When we sell financial assets in securitizations, we generally retain interests in the form of servicing rights and residual assets, which we refer to as securitization assets.

Gain or loss on the sale of financial assets is calculated based on the excess of the proceeds received from the securitization (less any transaction costs) plus any retained interests obtained over the cost basis of the assets sold. For retained interests, we generally estimate fair value based on the present value of future expected cash flows using our best estimates of the key assumptions of anticipated losses, prepayment rates, and current market discount rates commensurate with the risks involved. Cash flows related to our securitizations at origination are classified as operating activities in our consolidated statements of cash flows.

We initially account for all separately recognized servicing assets and servicing liabilities at fair value and subsequently measure such servicing assets and liabilities using the amortization method. Servicing assets and liabilities are amortized in proportion to, and over the period of, estimated net servicing income with servicing income recognized as earned. We assess servicing assets for impairment at each reporting date. If the amortized cost of servicing assets is greater than the estimated fair value, we will recognize an impairment in net income.

Our other retained interest in securitized assets, the residual assets, are accounted for similar to available-for-sale debt securities and carried at fair value. Income related to the residual assets is recognized using the effective interest rate method and included in fee income in the income statement. Our residual assets are evaluated for impairment on a quarterly basis. A residual asset is impaired if its fair value is less than its carrying value. The credit component of impairments, if any, are recognized by recording an allowance against the amortized cost of the asset. For changes in expected cash flows, we will calculate a new yield based on the current amortized cost of the residual assets and the revised expected cash flows. This yield is used prospectively to recognize our income related to these assets.

Cash and Cash Equivalents

Cash and cash equivalents include short-term government securities, certificates of deposit and money market funds, all of which had an original maturity of three months or less at the date of purchase. These securities are carried at their purchase price, which approximates fair value.

Restricted Cash

Restricted cash includes cash and cash equivalents set aside with certain lenders primarily to support obligations outstanding as of the balance sheet dates. Restricted cash is reported as part of other assets in the consolidated balance sheets. Refer to Note 3 to our financial statements in this Form 10-Q for disclosure of the balances of restricted cash included in other assets.

Convertible Notes

We have issued convertible senior notes that are accounted for in accordance with ASC 470-20, Debt with Conversion and Other Options, and ASC 815, Derivatives and Hedging (“ASC 815”). Under ASC 815, issuers of certain convertible debt instruments are generally required to separately account for the conversion option of the convertible debt instrument as either a derivative or equity, unless it meets the scope exemption for contracts indexed to, and settled in, an issuer’s own equity. Since this conversion option is both indexed to our equity and can only be settled in our common stock, we have met the scope exemption, and therefore, we are not separately accounting for the embedded conversion option. The initial issuance and any principal repayments are classified as financing activities and interest payments are classified as operating activities in our consolidated statements of cash flows. If converted, the carrying value of each bond is reclassified into stockholders' equity.

Income Taxes

We elected and qualified to be taxed as a REIT for U.S. federal income tax purposes, commencing with our taxable year ended December 31, 2013. We also have taxable REIT subsidiaries (“TRS”) that are taxed separately, and that will generally be subject to U.S. federal, state and local income taxes as well as taxes of foreign jurisdictions, if any. To qualify as a REIT, we must meet on an ongoing basis several organizational and operational requirements, including a requirement that we currently distribute at least 90% of our REIT's net taxable income before dividends paid, excluding capital gains, to our stockholders. As a REIT, we are not subject to U.S. federal corporate income tax on that portion of net income that is currently distributed to our owners.

We account for income taxes under ASC 740, Income Taxes (“ASC 740”) for our TRS using the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to the differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities from a change in tax rates is

recognized in earnings in the period when the new rate is enacted. We evaluate any deferred tax assets for valuation allowances based on an assessment of available evidence including sources of taxable income, prior years taxable income, any existing taxable temporary differences and our future investment and business plans that may give rise to taxable income. We treat any tax credits we receive from our equity investments in renewable energy projects as reductions of federal income taxes of the year in which the credit arises. Any deferred tax impacts resulting from transfers of assets to or from our TRS are recorded as an adjustment to additional paid-in capital, as it is a transfer amongst entities under common control.

We apply ASC 740 with respect to how uncertain tax positions should be recognized, measured, presented, and disclosed in the financial statements. This guidance requires the accounting and disclosure of tax positions taken or expected to be taken in the course of preparing our tax returns to determine whether the tax positions are “more likely than not” to be sustained by the applicable tax authority. We are required to analyze all open tax years, as defined by the statute of limitations, for all major jurisdictions, which includes U.S. federal and certain states.

Equity-Based Compensation

In 2013, we adopted the 2013 Hannon Armstrong Sustainable Infrastructure Capital, Inc. Equity Incentive Plan (as amended, the “2013 Plan”), which provides for grants of stock options, stock appreciation rights, restricted stock units, shares of restricted common stock, phantom shares, dividend equivalent rights, long-term incentive-plan units (“LTIP units”) and other restricted limited partnership units issued by our Operating Partnership and other equity-based awards. From time to time, we may grant equity or equity-based awards as compensation to our independent directors, employees, advisors, consultants and other personnel under our 2013 Plan. Certain awards earned under the plan are based on achieving various performance targets, which are generally earned between 0% and 200% of the initial target, depending on the extent to which the performance target is met. In addition to performance targets, certain LTIP units issued by our Operating Partnership also require a certain level of appreciation of partnership interests to occur before parity is reached and LTIP units can be converted to limited partnership units.

We record compensation expense for grants made under the 2013 Plan in accordance with ASC 718, Compensation-Stock Compensation. We record compensation expense for unvested grants that vest solely based on service conditions on a straight-line basis over the vesting period of the entire award based upon the fair market value of the grant on the date of grant. Fair market value for restricted common stock is based on our share price on the date of grant. For awards where the vesting is contingent upon achievement of certain performance targets, compensation expense is measured based on the fair market value on the grant date and is recorded over the requisite service period (which includes the performance period). Actual performance results at the end of the performance period determines the number of shares that will ultimately be awarded. We have also issued awards where the vesting is contingent upon service being provided for a defined period and certain market conditions being met. The fair value of these awards, as measured at the grant date, is recognized over the requisite service period, even if the market conditions are not met. The grant date fair value of these awards was developed by an independent appraiser using a Monte Carlo simulation.

Earnings Per Share

We compute earnings per share of common stock in accordance with ASC 260, Earnings Per Share. Basic earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period excluding the weighted average number of unvested grants under the 2013 Plan, if applicable (“participating securities” as defined in Note 12 to our financial statements to this Form 10-Q). Diluted earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period plus other potential common stock instruments if they are dilutive. Other potentially dilutive common stock instruments include our unvested restricted stock, other equity-based awards, and convertible notes. The restricted stock and other equity-based awards are included if they are dilutive using the treasury stock method. The treasury stock method assumes that theoretical proceeds received for future service provided is used to purchase shares of treasury stock at the average market price per share of common stock, which is deducted from the total shares of potential common stock included in the calculation. When unvested grants are dilutive, the earnings allocated to these dilutive unvested grants are not deducted from the net income attributable to controlling stockholders when calculating diluted earnings per share. The convertible notes are included if they are dilutive using the if-converted method. The if-converted method removes interest expense related to the convertible notes from the net income attributable to controlling stockholders and includes the weighted average shares of potential common stock over the period issuable upon conversion of the note. No adjustment is made for shares of potential common stock that are anti-dilutive during a period.

Segment Reporting

We make equity and debt investments in the energy efficiency, renewable energy and sustainable infrastructure markets. We manage our business as a single portfolio and report all of our activities as one business segment.

Recently Issued Accounting Pronouncements

Accounting standards updates issued before November 5, 2021, and effective after September 30, 2021, are not expected to have a material effect on our consolidated financial statements and related disclosures.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Fair value is defined as the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The fair value accounting guidance provides a three-level hierarchy for classifying financial instruments. The levels of inputs used to determine the fair value of our financial assets and liabilities carried on the balance sheet at fair value and for those which only disclosure of fair value is required are characterized in accordance with the fair value hierarchy established by ASC 820, Fair Value Measurements. Where inputs for a financial asset or liability fall in more than one level in the fair value hierarchy, the financial asset or liability is classified in its entirety based on the lowest level input that is significant to the fair value measurement of that financial asset or liability. We use our judgment and consider factors specific to the financial assets and liabilities in determining the significance of an input to the fair value measurements. As of September 30, 2021 and December 31, 2020, only our residual assets related to our securitization trusts and investments were carried at fair value on the consolidated balance sheets on a recurring basis. The three levels of the fair value hierarchy are described below:

•Level 1 — Quoted prices (unadjusted) in active markets that are accessible at the measurement date.

•Level 2 — Observable prices that are based on inputs not quoted on active markets but corroborated by market data.

•Level 3 — Unobservable inputs are used when little or no market data is available.

The tables below illustrate the estimated fair value of our financial instruments on our balance sheet. Unless otherwise discussed below, fair value for our Level 2 and Level 3 measurements is measured using a discounted cash flow model, contractual terms and inputs which consist of base interest rates and spreads over base rates which are based upon market observation and recent comparable transactions. An increase in these inputs would result in a lower fair value and a decline would result in a higher fair value. Our senior unsecured notes and convertible notes are valued using a market based approach and observable prices. The receivables held-for-sale, if any, are carried at the lower of cost or fair value.

	As of September 30, 2021
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	139	$	126	Level 3
Commercial receivables	1,397		1,225		Level 3
Investments (1)	18		18		Level 3
Securitization residual assets (2)	198		198		Level 3
Liabilities (3)
Credit facilities	$	25	$	25	Level 3
Non-recourse debt	487		449		Level 3
Senior unsecured notes	1,838		1,793		Level 2
Convertible notes	203		158		Level 2

(1)The amortized cost of our investments as of September 30, 2021, was $17 million.

(2)Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of September 30, 2021 was $184 million.

(3)Fair value and carrying value exclude unamortized financing costs.

	As of December 31, 2020
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	282	$	248	Level 3
Commercial receivables	1,018		965		Level 3
Investments (1)	55		55		Level 3
Securitization residual assets (2)	159		159		Level 3
Liabilities (3)
Credit facilities	$	23	$	23	Level 3
Non-recourse debt	678		605		Level 3
Senior unsecured notes	1,362		1,299		Level 2
Convertible notes	552		296		Level 2

(1)    The amortized cost of our investments as of December 31, 2020, was $51 million.

(2)    Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of December 31, 2020 was $141 million.

(3)    Fair value and carrying value exclude unamortized financing costs.

Investments

The following table reconciles the beginning and ending balances for our Level 3 investments that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	18	$	46	$	55	$	75
Purchases of investments	—		5		5		23
Principal payments on investments	—		—		—		(2)
Sale of investments	—		—		(38)		(53)
Realized gains on investments recorded in gain on sale of receivables and investments	—		—		—		5
Unrealized gains (losses) on investments recorded in OCI	—		1		(4)		4
Balance, end of period	$	18	$	52	$	18	$	52

The following table illustrates our investments in an unrealized loss position:

	Estimated Fair Value				Unrealized Losses (1)
	Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months		Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months
	(in millions)
September 30, 2021	$	7	$	—	$	0.2	$	—
December 31, 2020	—		6		—		0.3

(1)    Loss position is due to interest rates movements. We have the intent and ability to hold these investments until a recovery of fair value.

In determining the fair value of our investments we used a market-based risk-free rate and a range of interest rate spreads of approximately 1% to 4% based upon transactions involving similar assets as of September 30, 2021 and December 31, 2020. The weighted average discount rate used to determine the fair value of our investments as of September 30, 2021 and December 31, 2020 were 3.6% and 3.2%, respectively.

Securitization residual assets

The following table reconciles the beginning and ending balances for our Level 3 securitization residual assets that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	188	$	135	$	159	$	122
Accretion of securitization residual assets	2		2		6		4
Additions to securitization residual assets	11		9		45		36
Collections of securitization residual assets	(2)		(4)		(8)		(9)
Sales of securitization residual assets	—		—		—		(21)
Unrealized gains (losses) on securitization residual assets recorded in OCI	(1)		—		(4)		10
Balance, end of period	$	198	$	142	$	198	$	142

In determining the fair value of our securitization residual assets, we used a market-based risk-free rate and a range of interest rate spreads of approximately 1% to 4% based upon transactions involving similar assets as of September 30, 2021 and December 31, 2020. The weighted average discount rates used to determine the fair value of our securitization residual assets as of September 30, 2021 and December 31, 2020 were 4.3% and 3.8%, respectively.

Non-recurring Fair Value Measurements

Our financial statements may include non-recurring fair value measurements related to acquisitions and non-monetary transactions, if any. Assets acquired in a business combination are recorded at their fair value. We may use third-party valuation firms to assist us with developing our estimates of fair value. See Note 6 for discussion of a fair value measurement recorded at September 30, 2021 related to an equity method investment.

Concentration of Credit Risk

Government and commercial receivables, real estate leases and debt investments consist primarily of U.S. federal government-backed receivables, investment grade state and local government receivables and receivables from various climate solutions projects and do not, in our view, represent a significant concentration of credit risk. Additionally, certain of our investments are collateralized by projects concentrated in certain geographic regions throughout the United States. These investments typically have structural credit protections to mitigate our risk exposure and, in most cases, the projects are insured for estimated physical loss, which helps to mitigate the possible risk from these concentrations.

We had cash deposits that are subject to credit risk as shown below:

	September 30, 2021		December 31, 2020
	(in millions)
Cash deposits	$	413	$	286
Restricted cash deposits (included in other assets)	26		24
Total cash deposits	$	439	$	310
Amount of cash deposits in excess of amounts federally insured	$	437	$	309

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Non-Controlling Interest

9 Months Ended

Sep. 30, 2021

Noncontrolling Interest [Abstract]

Non-Controlling Interest

Non-Controlling Interest

Units of limited partnership interests in the Operating Partnership (“OP units”) that are owned by limited partners other than us are included in non-controlling interest on our consolidated balance sheets. The non-controlling interest holders are generally allocated their pro rata share of income, other comprehensive income and equity transactions.

The outstanding OP units held by outside limited partners represent less than 1% of our outstanding OP units and are redeemable by the limited partners for cash, or at our option, for a like number of shares of our common stock. No OP units were exchanged by non-controlling interest holders during the nine months ended September 30, 2021 and 57,400 OP units were exchanged by non-controlling interest holders during the nine months ended September 30, 2020.

We have also granted to members of our management team and directors LTIP Units pursuant to the 2013 Plan. LTIP Units issued to employees are held by HASI Management HoldCo LLC. The LTIP Units are designed to qualify as profits interests in the Operating Partnership and initially will have a capital account balance of zero and, therefore, will not have full parity with OP units with respect to liquidating distributions or other rights. However, the amended and restated agreement of limited partnership of the Operating Partnership (the “OP Agreement”) provides that “book gains,” or economic appreciation, in the Operating Partnership will be allocated first to the LTIP Units until the capital account per LTIP Units is equal to the capital account per-unit of the OP units. Under the terms of the OP Agreement, the Operating Partnership will revalue its assets upon the occurrence of certain specified events, and any increase in valuation from the time of grant until such event will be allocated first to the holders of LTIP Units to equalize the capital accounts of such holders with the capital accounts of OP unit holders. Once this has occurred, the LTIP Units will achieve full parity with the OP units for all purposes, including with respect to liquidating distributions and redemption rights. In addition to these attributes, there are vesting and settlement conditions similar to our other equity-based awards as discussed in Notes 2 and 11 to our financial statements in this Form 10-Q.

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Securitization of Financial Assets

9 Months Ended

Sep. 30, 2021

Transfers and Servicing [Abstract]

Securitization of Financial Assets

Securitization of Financial Assets

The following summarizes certain transactions with securitization trusts: 

	As of and for the nine months ended September 30,
	2021		2020
	(in millions)
Gains on securitizations	$	55	$	34
Cost of financial assets securitized	665		173
Proceeds from securitizations	720		207
Residual and servicing assets	204		147
Cash received from residual and servicing assets	9		9

In connection with securitization transactions, we typically retain servicing responsibilities and residual assets. We generally receive annual servicing fees that are typically up to 0.20% of the outstanding balance. We may periodically make servicer advances, that are subject to credit risk. Included in securitization assets in our consolidated balance sheets are our servicing assets at amortized cost and our residual assets at fair value. Our residual assets are subordinate to investors’ interests, and their values are subject to credit, prepayment and interest rate risks on the transferred financial assets. Other than our securitization assets representing our residual interests in the trusts' collateral, the investors and the securitization trusts have no recourse to our assets for failure of debtors to pay when due. In computing gains and losses on securitizations, we use discount rates based on a review of comparable market transactions including Level 3 unobservable inputs, which consist of base interest rates and spreads over these base rates. Depending on the nature of the transaction risks, the discount rate ranged from 2% to 8%.

As of September 30, 2021 and December 31, 2020, our managed assets totaled $8.2 billion and $7.2 billion, respectively, of which $5.0 billion and $4.3 billion, respectively, were securitized assets held in unconsolidated securitization trusts. There were no securitization credit losses in the nine months ended September 30, 2021 or September 30, 2020. As of September 30, 2021, there were no material payments from debtors to the securitization trusts that were greater than 90 days past due.

Receivables from contracts for the installation of energy efficiency and other technologies are the source of cash flows of $109 million of our securitization residual assets. These technologies are installed in facilities owned by, or operated for or by, federal, state or local government entities where the ultimate obligor for the receivable is a governmental entity. The contracts may have guarantees of energy savings from third-party service providers, which typically are entities rated investment grade by an independent rating agency. The remainder of our securitization residual assets are related to contracts where the underlying cash flows are secured by an interest in real estate which are typically senior in terms of repayment to other financings.

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Our Portfolio

9 Months Ended

Sep. 30, 2021

Investments [Abstract]

Our Portfolio

Our Portfolio As of September 30, 2021, our Portfolio included approximately $3.2 billion of equity method investments, receivables, real estate and investments on our balance sheet. The equity method investments represent our non-controlling equity investments in renewable energy and energy efficiency projects and land. The receivables and investments are typically collateralized by contractually committed debt obligations of government entities or private high credit quality obligors and are often supported by additional forms of credit enhancement, including security interests and supplier guaranties. The real estate is typically land and related lease intangibles for long-term leases to wind and solar projects.

In developing and evaluating performance against our credit criteria, we consider a number of qualitative and quantitative criteria including a project’s operating results, loan-to-value ratio, any cash reserves, the ability of expected cash from operations to cover the cash flow requirements currently and into the future, key terms of the transaction, the ability of the borrower to refinance the transaction, the financial and operating capability of the borrower, its sponsors or the obligor as well as any guarantors and the project’s collateral value. In addition, we consider the overall economic environment, the climate solutions sector, the effect of local, industry and broader economic factors, the impact of any variation in weather and the historical and anticipated trends in interest rates, defaults and loss severities for similar transactions.

The following is an analysis of the Performance Ratings of our Portfolio as of September 30, 2021, which is assessed quarterly:

	Portfolio Performance
	1 (1)						2 (2)			3 (3)			Total
	Government			Commercial			Commercial			Commercial
Receivable vintage	(dollars in millions)
2021	$	—		$	203		$	—		$	—		$	203
2020	—			190			—			—			190
2019	—			483			6			—			489
2018	—			260			—			—			260
2017	31			1			8			—			40
2016	14			59			—			—			73
Prior to 2016	81			46			—			8			135
Total receivables	126			1,242			14			8			1,390
Less: Allowance for loss on receivables	—			(26)			(5)			(8)			(39)
Net receivables (4)	126			1,216			9			—			1,351
Receivables held-for-sale	—			—			—			—			—
Investments	11			7			—			—			18
Real estate	—			357			—			—			357
Equity method investments (5)	—			1,442			26			—			1,468
Total	$	137		$	3,022		$	35		$	—		$	3,194
Percent of Portfolio	4		%	95		%	1		%	—		%	100		%
Average remaining balance (6)	$	6		$	13		$	10		$	4		$	12

(1)This category includes our assets where based on our credit criteria and performance to date we believe that our risk of not receiving our invested capital remains low.

(2)This category includes our assets where based on our credit criteria and performance to date we believe there is a moderate level of risk to not receiving some or all of our invested capital.

(3)This category includes our assets where based on our credit criteria and performance to date, we believe there is substantial doubt regarding our ability to recover some or all of our invested capital. Included in this category are two commercial receivables with a combined total carrying value of approximately $8 million as of September 30, 2021, which we have held on non-accrual status since 2017. We expect to continue to pursue our legal claims with regards to these assets. This category previously contained an equity method investment in a wind project with no book value due to our allocation of impairment losses recorded by the project sponsor. We sold this equity method investment in the third quarter for nominal proceeds.

(4)Total reconciles to the total of the government receivables and commercial receivables lines of the consolidated balance sheets.

(5)Some of the individual projects included in portfolios that make up our equity method investments have government off-takers. As they are part of large portfolios, they are not classified separately. 

(6)Average remaining balance is calculated gross of allowance for loss on receivables and excludes approximately 152 transactions each with outstanding balances that are less than $1 million and that in the aggregate total $72 million.

Receivables

As of September 30, 2021, our allowance for loan losses was $39 million based on our expectation of credit losses over the lives of the receivables in our portfolio. During the three and nine months ended September 30, 2021, we increased our reserve by approximately $2 million and $3 million, respectively, primarily as a result of loans and loan commitments made during the period.

Below is a summary of the carrying value, expected loan funding commitments, and allowance by type of receivable or “Portfolio Segment”, as defined by Topic 326, as of September 30, 2021 and December 31, 2020:

	September 30, 2021						December 31, 2020
	Gross Carrying Value		Loan Funding Commitments		Allowance		Gross Carrying Value		Loan Funding Commitments		Allowance
	(in millions)
Government (1)	$	126	$	—	$	—	$	248	$	—	$	—
Commercial (2)	1,264		290		39		1,002		282		36
Total	$	1,390	$	290	$	39	$	1,250	$	282	$	36

(1)As of September 30, 2021, our government receivables include $28 million of U.S. federal government transactions and $98 million of transactions where the ultimate obligors are state or local governments.

Risk characteristics of our government receivables include the energy savings or the power output of the projects and the ability of the government obligor to generate revenue for debt service, via taxation or other means. Transactions may have guarantees of energy savings or other performance support from third-party service providers, which typically are entities, directly or whose ultimate parent entity is, rated investment grade by an independent rating agency. All of our government receivables are included in Performance Rating 1 in the Portfolio Performance table above. Our allowance for government receivables is primarily calculated by using PD/LGD methods as discussed in Note 2 to our financial statements in this Form 10-Q. Our expectation of credit losses for these receivables is immaterial given the high credit-quality of the obligors.

(2)As of September 30, 2021, this category of assets includes $742 million of mezzanine loans made on a non-recourse basis to special purpose subsidiaries of residential solar companies which are secured by residential solar assets where we rely on certain limited indemnities, warranties, and other obligations of the residential solar companies or their other subsidiaries. Approximately $647 million of our commercial receivables are loans made to entities in which we also have non-controlling equity investments of approximately $76 million. This total also includes $47 million of lease agreements where we hold legal title to the underlying real estate which are treated under GAAP as receivables since they were deemed to be failed sale/leaseback transactions as described in Note 2 to our financial statements in this Form 10-Q.

Risk characteristics of our commercial receivables include a project’s operating risks, which include the impact of the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, the impact of any variation in weather and trends in interest rates. We use assumptions related to these risks to estimate an allowance using a discounted cash flow analysis or the PD/LGD method as discussed in Note 2 to our financial statements in this Form 10-Q. All of our commercial receivables are included in Performance Rating 1 in the Portfolio Performance table above, except for $14 million of receivables included in Performance Category 2 and the $8 million of receivables we have placed on non-accrual status which are included in Performance Rating 3. For those assets in Performance Rating 1, the credit worthiness of the obligor combined with the various structural protections of our assets cause us to believe we have a low risk we will not receive our invested capital, however we recorded a $26 million allowance on these $1.2 billion in assets as a result of lower probability assumptions utilized in our allowance methodology.

The following table reconciles our beginning and ending allowance for loss on receivables by Portfolio Segment:

	Three months ended September 30, 2021				Three months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance	$	—	$	37	$	—	$	29
Provision for loss on receivables	—		2		—		2
Ending balance	$	—	$	39	$	—	$	31
	Nine months ended September 30, 2021				Nine months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance (1)	$	—	$	36	$	—	$	26
Provision for loss on receivables	—		3		—		5
Ending balance	$	—	$	39	$	—	$	31

(1)For the nine months ended September 30, 2020, the beginning balance represents January 1, 2020, the adoption date of Topic 326. The beginning balance includes the pre-tax allowance for loss on receivables of $17 million recorded upon adoption which reflects our estimated loss as of that date under the new standard as well as the $8 million of receivables which were previously on non-accrual status and fully reserved.

Other than the $8 million of receivables discussed above with a Performance Rating of 3, we have no receivables which are on non-accrual status.

The following table provides a summary of our anticipated maturity dates of our receivables and the weighted average yield for each range of maturities as of September 30, 2021:

	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period (excluding allowance)	$	1,390		$	67		$	56		$	482		$	785
Weighted average yield by period	8.2		%	7.6		%	6.3		%	8.4		%	8.3		%

Investments

The following table provides a summary of our anticipated maturity dates of our investments and the weighted average yield for each range of maturities as of September 30, 2021:

	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period	$	18		$	—		$	—		$	—		$	18
Weighted average yield by period	4.1		%	—		%	—		%	—		%	4.1		%

We had no investments that were impaired or on non-accrual status as of September 30, 2021 or December 31, 2020, and no allowances associated with our investments.

Real Estate

Our real estate is leased to renewable energy projects, typically under long-term triple net leases with expiration dates that range between the years 2033 and 2057 under the initial terms and 2047 and 2080 if all renewals are exercised. The components of our real estate portfolio as of September 30, 2021 and December 31, 2020, were as follows: 

	September 30, 2021		December 31, 2020
	(in millions)
Real estate
Land	$	269	$	269
Lease intangibles	104		104
Accumulated amortization of lease intangibles	(16)		(14)
Real estate	$	357	$	359

As of September 30, 2021, the future amortization expense of the intangible assets and the future minimum rental income payments under our land lease agreements are as follows:

	Future Amortization Expense		Minimum Rental Income Payments
	(in millions)
From October 1, 2021 to December 31, 2021	$	1	$	5
2022	3		22
2023	3		23
2024	3		24
2025	3		24
2026	3		24
Thereafter	72		717
Total	$	88	$	839

Equity Method Investments

We have made non-controlling equity investments in a number of renewable energy and energy efficiency projects as well as in a joint venture that owns land with long-term triple net lease agreements to several solar projects that we account for as equity method investments.

As of September 30, 2021, we held the following equity method investments:

Investment Date	Investee	Carrying Value
		(in millions)
Various	Jupiter Equity Holdings LLC	$	540
Various	Lighthouse Partnerships (1)	211
March 2020	University of Iowa Energy Collaborative Holdings LLC	121
Various	Phase V Class A LLC	109
Various	Other investees	487
	Total equity method investments	$	1,468

(1)     Represents the total of three equity investments in a portfolio of renewable assets.

Jupiter Equity Holdings LLC

We have a preferred equity interest in Jupiter Equity Holdings LLC (“Jupiter”) that owns nine operating onshore wind projects and four operating utility-scale solar projects with an aggregate capacity of approximately 2.3 gigawatts. As of September 30, 2021, we have made capital contributions to Jupiter of approximately $540 million related to these projects. The projects feature cash flows from fixed-price power purchase agreements and financial hedges with a weighted average contract life of 13 years, contracted with highly creditworthy off-takers and counterparties.

Jupiter is governed by an amended and restated limited liability company agreement, dated July 1, 2020, by and among Jupiter, one of our subsidiaries and a subsidiary of the project sponsor, and contains customary terms and conditions. We own 100% of the Class A Units in Jupiter corresponding to 49% of the distributions from Jupiter subject to the preferences discussed below. Most major decisions that may impact Jupiter, its subsidiaries or its assets, require the majority vote of a four person committee in which we and the project sponsor each have two representatives. Through Jupiter, we will be entitled to preferred distributions until certain return targets are achieved. Once these return targets are achieved, distributions will be allocated approximately 33% to us and approximately 67% to the sponsor. We and the sponsor each have a right of first offer if the other party desires to transfer any of its equity ownership to a third party on or after July 1, 2023. We use the equity method of accounting to account for our preferred equity interest in Jupiter, and have elected to recognize earnings from this investment one quarter in arrears to allow for the receipt of financial information.

Lighthouse Partnerships

In December 2020, we entered into certain agreements relating to the acquisition, ownership and management of approximately $663 million in preferred cash equity investments in three partnerships (the “Lighthouse Partnerships”) that expect to own cash equity interests in an approximately 1.6 gigawatt portfolio of onshore wind, utility-scale solar and solar-plus-storage projects (the “Renewables Portfolio”) developed and managed by the project sponsor. We have made initial investments in the preferred cash equity interests of the Lighthouse Partnerships of approximately $219 million through September 30, 2021, and additional investments are expected to be made in 2021 and 2022 as the projects become commercially operational. The Renewables Portfolio currently has contracted cash flows with a combined weighted average contract life of greater than 14 years with a diversified group of predominately investment grade corporate, utility, university and municipal offtakers. In the first quarter of 2021, we made approximately $15 million in equity contributions and made $10 million in member loans to one of the Lighthouse Partnerships for the settlement of hedging activity under one of the project's power hedge agreements as a result of the February 2021 winter storms in Texas.

Each of the Lighthouse Partnerships are or will be governed by a limited liability company agreement between us and the sponsor serving as managing member and contain customary terms and conditions. Most major decisions that may impact each of the Lighthouse Partnerships, its subsidiaries or its assets, require a unanimous vote of the representatives present at a meeting of a review committee in which a quorum is present. The review committee is a four person committee, which includes two Company representatives and two sponsor representatives. Through each Lighthouse Partnership, commencing on a certain date following the effective date of the applicable limited liability company agreement, we will be entitled to preferred distributions until certain return targets are achieved. Subject to customary exceptions, no member of a Lighthouse Partnership can transfer any of its equity ownership in any Lighthouse Partnership to a third party without approval of the review committee of that Lighthouse Partnership. We use the equity method of accounting to account for our preferred equity interest in each Lighthouse Partnership, and have elected to recognize earnings from this investment one quarter in arrears to allow for the receipt of financial information.

Other Equity method investmentsIn July 2021, we restructured an equity method investment with a GAAP carrying value of $24 million to convert it to a $17 million loan. The June 30, 2021 GAAP carrying value of this investment included amounts related to non-cash HLBV income that in normal course would have reversed over time. Because this transaction was an indication of fair value that existed as of June 30, 2021, we accelerated the reversal of $7 million of previously recorded non-cash HLBV income included in the June 30, 2021 carrying value of this investment in the second quarter through income from equity method investments on our income statement.

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Credit facilities and commercial paper notes

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Credit facilities and commercial paper notes

Credit facilities and commercial paper notes

Secured credit facilities

We have two secured revolving credit facilities (our “Secured Credit Facilities”), a representation-based loan agreement (the “Rep-Based Facility”) and an approval-based loan agreement (the “Approval-Based Facility”) with various lenders, which mature in July 2023. The Rep-Based Facility is a secured revolving limited-recourse credit facility, which we modified in March 2021 to have a maximum outstanding principal amount of $100 million, lowered from a previous amount of $250 million. This modification resulted in a $1.5 million loss due to the acceleration of a portion of the related unamortized financing costs that was recognized in the first quarter of 2021. The Approval-Based Facility is a secured revolving recourse credit facility with a maximum outstanding principal amount of $200 million.

The following table provides additional detail on our Secured Credit Facilities as of September 30, 2021:

	Rep-Based  Facility		Approval-Based Facility
	(dollars in millions)
Outstanding balance	$	—	$	—
Value of collateral pledged to credit facility	24		89
Available capacity based on pledged assets	11		64
Weighted average short-term borrowing rate	N/A		N/A

Loans under the Rep-Based Facility bear interest at a rate equal to one-month LIBOR plus 1.40% or 1.85% (depending on the type of collateral) or, in certain circumstances, the Federal Funds Rate plus 0.40% or 0.85% (depending on the type of collateral). Loans under the Approval-Based Facility bear interest at a rate equal to one-month LIBOR plus 1.50% or 2.00% (depending on the type of collateral) or, under certain circumstances, the Federal Funds Rate plus 0.50% or 1.00% (depending on the type of collateral).

Inclusion of any financings of the Company in the borrowing base as collateral under the Rep-Based Facility will be subject to the Company making certain agreed upon representations and warranties. We have provided a limited guarantee covering the accuracy of the representations and warranties, and the repayment by the borrowers of certain amounts relating to any such financing is the exclusive remedy with respect to any breach of such representations and warranties under the Rep-Based Facility. Inclusion of any financings of the Company in the borrowing base as collateral under the Approval-Based Facility will be subject to the approval of a super-majority of the lenders, and we have provided a guarantee of the Approval-Based Facility.

The amount eligible to be drawn under the Secured Credit Facilities is based on a discount to the value of each included investment based upon the type of collateral or an applicable valuation percentage. The sum of included financings after taking into account the applicable valuation percentages and any changes in the valuation of the financings in accordance with the Secured Credit Facilities determines the borrowing capacity, subject to the overall facility limits described above. Under the Rep-Based Facility, the applicable valuation percentage is 85% in the case of a land-lease obligor or a U.S. Federal Government obligor, 80% in the case of an institutional obligor or state and local obligor, and with respect to other obligors or in certain circumstances, such other percentage as the administrative agent may prescribe. Under the Approval-Based Facility, the applicable valuation percentage is 85% in the case of certain approved financings and 67% or such other percentage as the administrative agent may prescribe. The Approval-Based Facility previously had an outstanding draw with a fixed amortization schedule that was prepaid in the third quarter of 2021.

We have approximately $2 million of remaining unamortized financing costs associated with the Secured Credit Facilities that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the Secured Credit Facilities. Administrative fees are payable annually to the administrative agent under each of the Secured Credit Facilities and letter agreements with the administrative agent. Under the Rep-Based Facility, we pay to the administrative agent on each monthly payment date, for the benefit of the lenders, certain availability fees for the Rep-Based

Facility equal to 0.60%, divided by 365 or 366, as applicable, multiplied by the excess of the available total commitments under the Rep-Based Facility over the actual amount borrowed under the Rep-Based Facility.

The Secured Credit Facilities contain terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds and stock repurchases. We were in compliance with our covenants as of September 30, 2021.

The Secured Credit Facilities also include customary events of default, including the existence of a default in more than 50% of the value of underlying financings. The occurrence of an event of default may result in termination of the credit facilities, acceleration of amounts due under the Secured Credit Facilities, and accrual of default interest at a rate of LIBOR plus 2.00% in the case of both the Rep-Based Facility and the Approval-Based Facility.

Unsecured credit facility

In April 2021, we entered into a new $400 million, 364-day unsecured revolving credit facility pursuant to a revolving credit agreement with a syndicate of lenders, replacing our then-existing $50 million unsecured revolving credit facility entered into in February 2021. As of September 30, 2021, the outstanding balance on this facility was $25 million, and it currently bears interest at a rate of 2.325%. We have approximately $1 million of remaining unamortized financing costs associated with the unsecured credit facility that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the unsecured credit facility.

The unsecured revolving credit facility has a commitment fee based on our current credit rating and bears interest at a rate of the LIBOR or prime rate plus applicable margins based on our current credit rating, which may be adjusted downward up to 0.05% to the extent our Portfolio achieves certain targeted levels of carbon emissions avoidance. As of the inception of the unsecured revolving credit facility, the applicable margins are 2.25% for LIBOR-based loans and 1.25% for prime rate-based loans. The unsecured revolving credit facility contains terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds, stock repurchases and dividends we declare. The unsecured revolving credit facility also includes customary events of default and remedies. At our option, upon maturity of the unsecured credit facility, we have the ability to convert amounts borrowed into term loans for a fee equal to 2.25% of the term loan amounts.

CarbonCount© Green Commercial Paper Note Program

In September 2021, we entered into an agreement allowing us to issue commercial paper notes, in amounts up to $100 million outstanding at any time. We obtained an irrevocable direct-pay letter of credit in an amount not to exceed $100 million from Bank of America, N.A, to support these obligations which expires in December 2022. Commercial paper notes will not be redeemable, will not be subject to voluntary prepayment and are not to exceed 397 days. The proceeds of our commercial paper notes are used to acquire or refinance, in whole or in part, eligible green projects, including assets that are neutral to negative on incremental carbon emissions. We have no commercial paper notes outstanding as of September 30, 2021.

Green commercial paper notes will be issued at a discount based on market pricing, subject to broker fees of 0.10%. For issuance of the letter of credit, we will pay 0.95% on any drawn letter of credit amounts to Bank of America, N.A., and 0.40% on any unused letter of credit capacity. Fees paid on the drawn letters of credit may be reduced by up to 0.05% to the extent our Portfolio achieves certain targeted levels of carbon emissions avoidance as measured by our CarbonCount© metric. As of September 30, 2021, we have approximately $1 million of remaining unamortized financing costs associated with the commercial paper program and associated letter of credit that have been capitalized and included in other assets on our balance sheet and are being amortized on a straight-line basis over the term of the commercial paper program. The associated letter of credit contains terms, conditions, covenants, and representations and warranties that are customary and typical for a transaction of this nature, including various affirmative and negative covenants, and limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds, stock repurchases and dividends we declare. The letter of credit also includes customary events of default and remedies.

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Long-term Debt

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Long-term Debt

Long-term Debt

Non-recourse debt

We have outstanding the following asset-backed non-recourse debt and bank loans:

	Outstanding Balance as of						Anticipated Balance at Maturity		Carrying Value of Assets Pledged as of
	September 30, 2021		December 31, 2020		Interest Rate	Maturity Date			September 30, 2021		December 31, 2020		Description of Assets Pledged
	(dollars in millions)
HASI Sustainable Yield Bond 2015-1A	$	78	$	81	4.28%	October 2034	$	—	$	133	$	134	Receivables, real estate and real estate intangibles
HASI Sustainable Yield Bond 2015-1B Note (1)	—		13		5.41%	October 2034	—		133		134		Class B Bond of HASI Sustainable Yield Bond 2015-1
HASI SYB Trust 2016-2	66		67		4.35%	April 2037	—		66		71		Receivables
HASI ECON 101 Trust (2)	—		126		3.57%	May 2041	—		—		133		Receivables and investments
HASI SYB Trust 2017-1	147		150		3.86%	March 2042	—		203		205		Receivables, real estate and real estate intangibles
Lannie Mae Series 2019-01	93		95		3.68%	January 2047	—		107		107		Receivables, real estate and real estate intangibles
Other non-recourse debt (3)	65		73		3.15% - 7.45%	2022 to 2032	18		65		73		Receivables
Unamortized financing costs	(11)		(12)
Non-recourse debt (4)	$	438	$	593

(1)The Company repurchased this note in April of 2021.

(2)In March 2021, contractual terms were modified resulting in the deconsolidation of both this debt and the related pledged assets. We recognized a loss of approximately $3 million, which is included in gain on sale of receivables and investments in our income statement.

(3)Other non-recourse debt consists of various debt agreements used to finance certain of our receivables. Scheduled debt service payment requirements are equal to or less than the cash flows received from the underlying receivables.

(4)The total collateral pledged against our non-recourse debt was $574 million and $723 million as of September 30, 2021 and December 31, 2020, respectively. In addition, $25 million and $23 million of our restricted cash balance was pledged as collateral to various non-recourse loans as of September 30, 2021 and December 31, 2020, respectively.

We have pledged the financed assets, and typically our interests in one or more parents or subsidiaries of the borrower that are legally separate bankruptcy remote special purpose entities as security for the non-recourse debt. There is no recourse for repayment of these obligations other than to the applicable borrower and any collateral pledged as security for the obligations. Generally, the assets and credit of these entities are not available to satisfy any of our other debts and obligations. The creditors can only look to the borrower, the cash flows of the pledged assets and any other collateral pledged, to satisfy the debt and we are not otherwise liable for nonpayment of such cash flows. The debt agreements contain terms, conditions, covenants and representations and warranties that are customary and typical for transactions of this nature, including limitations on the incurrence of liens and indebtedness, investments, fundamental organizational changes, dispositions, changes in the nature of business, transactions with affiliates, use of proceeds and stock repurchases. The agreements also include customary events of default, the occurrence of which may result in termination of the agreements, acceleration of amounts due and accrual of default interest. We typically act as servicer for the debt transactions. We were in compliance with all covenants as of September 30, 2021 and December 31, 2020.

We have guaranteed the accuracy of certain of the representations and warranties and other obligations of certain of our subsidiaries under certain of the debt agreements and provided an indemnity against certain losses from “bad acts” of such subsidiaries including fraud, failure to disclose a material fact, theft, misappropriation, voluntary bankruptcy or unauthorized transfers.

The stated minimum maturities of non-recourse debt as of September 30, 2021, were as follows:

	Future minimum maturities
	(in millions)
October 1, 2021 to December 31, 2021	$	11
2022	23
2023	26
2024	30
2025	26
2026	25
Thereafter	308
Total minimum maturities	$	449
Unamortized financing costs	(11)
Total non-recourse debt	$	438

The stated minimum maturities of non-recourse debt above include only the mandatory minimum principal payments. To the extent there are additional cash flows received from our investments in climate solutions serving as collateral for certain of our non-recourse debt facilities, these additional cash flows are required to be used to make additional principal payments against the respective debt. Any additional principal payments made due to these provisions may impact the anticipated balance at maturity of these financings. To the extent there are not sufficient cash flows received from those investments pledged as collateral, the investor has no recourse against other corporate assets to recover any shortfalls.

Senior Unsecured Notes

We have outstanding senior unsecured notes issued jointly by certain of our TRS and are guaranteed by the Company and certain other subsidiaries (the “Senior Unsecured Notes”), including $1 billion of senior notes due 2026 (“2026 Notes”) issued in June 2021. Proceeds from the 2026 Notes were used to redeem the 2024 Notes as described below. The Senior Unsecured Notes are subject to covenants that limit our ability to incur additional indebtedness and require us to maintain unencumbered assets of not less than 120% of our unsecured debt. These covenants will terminate on any date at which the Senior Unsecured Notes have been rated investment grade by two of the three major credit rating agencies and no event of default has occurred. We are in compliance with all of our covenants as of September 30, 2021 and December 31, 2020. The Senior Unsecured Notes impose certain requirements in the event that we merge with or sell substantially all of our assets to another entity. The proceeds of our Senior Unsecured Notes are used to acquire or refinance, in whole or in part, eligible green projects, including assets that are neutral to negative on incremental carbon emissions.

The following are summarized terms of the Senior Unsecured Notes:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Redemption Terms Modification Date
	(in millions)
2024 Notes	$	—	(1)	July 15, 2024	5.25	%	January 15th and July 15th	July 15, 2021
2025 Notes	400			April 15, 2025	6.00	%	April 15 and October 15th	April 15, 2022 (2)
2026 Notes	1,000			June 15, 2026	3.38	%	June 15 and December 15	March 15, 2026 (2)
2030 Notes	375		(3)	September 15, 2030	3.75	%	February 15th and August 15th	September 15, 2022 (4)

(1)The first $350 million issuance of 2024 Notes was priced at par. We subsequently issued $150 million of the $500 million aggregate principal amount of the 2024 Notes for total proceeds of $157 million ($155 million net of issuance costs) at an effective interest rate of 4.13%. The 2024 Notes were redeemed in June 2021 using a portion of the proceeds from the 2026 Notes. We recognized a loss of $15 million upon redemption for the redemption premium and the acceleration of debt issuance cost and premium amortization which is recorded in interest expense in our income statement.

(2)Prior to this date, we may redeem, at our option, some or all of the 2025 Notes or 2026 Notes for the outstanding principal amount plus the applicable “make-whole” premium as defined in the indenture governing the 2025 Notes or 2026 Notes plus accrued and unpaid interest through the redemption date. In addition, prior to this date, we may redeem up to 40% of the Senior Unsecured Notes using the proceeds of certain equity offerings at a price equal to par plus the coupon percentage of the principal amount thereof, plus accrued but unpaid interest, if any, to, but excluding, the applicable redemption date. On, or subsequent to, this date we may redeem the 2025 Notes or 2026 Notes in whole or in part at redemption prices defined in the indenture governing the 2025 Notes or 2026 Notes, plus accrued and unpaid interest though the redemption date.

(3)We issued the $375 million aggregate principal amount of the 2030 Notes for total proceeds of $371 million ($367 million net of issuance costs) at an effective interest rate of 3.87%.

(4)Prior to this date, we may, at our option on one or more occasions redeem up to 40% of the 2030 Notes using the proceeds of certain equity offerings at a price equal to 103.75% of the principal amount thereof; plus accrued but unpaid interest, if any, to, but excluding the applicable redemption date. At any point prior to maturity, we may redeem, at our option, some or all of the 2030 Notes plus the applicable “make-whole” premium as defined in the indenture governing the 2030 Notes plus accrued and unpaid interest through the redemption date.

The following table presents a summary of the components of the Senior Unsecured Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	1,775	$	1,275
Accrued interest	21		22
Unamortized premium (discount)	(3)		2
Less: Unamortized financing costs	(22)		(16)
Carrying value of Senior Unsecured Notes	$	1,771	$	1,283

We recorded approximately $19 million and $53 million in interest expense related to the Senior Unsecured Notes in the three and nine months ended September 30, 2021, respectively, compared to approximately $14 million and $33 million in the three and nine months ended September 30, 2020, respectively.

Convertible Senior Notes

We have outstanding $158 million aggregate principal amount of convertible senior notes (“Convertible Senior Notes”). Holders may convert any of their Convertible Senior Notes into shares of our common stock at the applicable conversion ratio at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date, unless the Convertible Senior Notes have been previously redeemed or repurchased by us.

The following are summarized terms of the Convertible Senior Notes as of September 30, 2021:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Conversion Ratio	Conversion Price	Issuable Shares	Dividend Threshold Amount (1)
	(in millions)									(in millions)
2022 Convertible Senior Notes	$	14	(2)	September 1, 2022	4.125	%	March 1 and September 1	36.8088	$27.17	0.5	$0.33
2023 Convertible Senior Notes	144			August 15, 2023	0.000	%	N/A	20.6853	$48.34	3.0	$0.34

(1)The conversion ratio is subject to adjustment for dividends declared above these amounts per share per quarter and certain other events that may be dilutive to the holder.

(2)During the quarter ended September 30, 2021, $136 million in principal amount of 2022 Convertible Senior Notes were converted into 5 million shares of common stock.

For both the 2022 Convertible Senior Notes and the 2023 Convertible Senior Notes, following the occurrence of a make-whole fundamental change, we will, in certain circumstances, increase the conversion rate for a holder that converts its convertible notes in connection with such make-whole fundamental change. There are no cash settlement provisions in the convertible notes and the conversion option can only be settled through physical delivery of our common stock. Additionally, upon the occurrence of certain fundamental changes involving us, holders of the convertible notes may require us to redeem all or a portion of their convertible notes for cash at a price of 100% of the principal amount outstanding, plus accrued and unpaid interest.

We have a redemption option to call the 2022 Convertible Senior Notes prior to maturity (i) on or after March 1, 2022 and (ii) at any time if such a redemption is deemed reasonably necessary to preserve our qualification as a REIT,

with the holder of the notes having the option of converting prior to our redemption becoming effective. The redemption price will be equal to the principal of the notes being redeemed, plus accrued and unpaid interest. In the event of redemption after March 1, 2022, there will be an additional make-whole premium paid to the holder of the redeemed notes unless the redemption is deemed reasonably necessary to preserve our qualification as a REIT. We may redeem the 2023 Convertible Senior Notes at any time only if such a redemption is deemed reasonably necessary to preserve our qualification as a REIT.

The following table presents a summary of the components of the Convertible Senior Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	158	$	294
Accrued interest	—		2
Less: Unamortized financing costs	(3)		(5)
Carrying value of Convertible Senior Notes	$	155	$	291

We recorded approximately $2 million and $6 million in interest expense related to the Convertible Senior Notes in the three and nine months ended September 30, 2021 and 2020, respectively

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Litigation

The nature of our operations exposes us to the risk of claims and litigation in the normal course of our business. We are not currently subject to any legal proceedings that are probable of having a material adverse effect on our financial position, results of operations or cash flows.

Guarantees and other commitments

We have made a guarantee related to the financing of one of our joint venture entities that owns debt securities of energy efficiency projects. The entity entered into a financing arrangement where we have guaranteed the obligations of the entity related to this financing, which includes collateral posting requirements as well as repayment of the financing at maturity in December 2021. As of September 30, 2021, our maximum obligation under this guarantee is approximately $60 million. We have executed a separate agreement with our joint venture partner pursuant to which it is liable for 15% of this obligation repayable to us.

In connection with some of our transactions, we have provided certain limited representations, warranties, covenants and/or provided an indemnity against certain losses resulting from our own actions, including related to certain investment tax credits. As of September 30, 2021, there have been no such actions resulting in claims against the Company.

COVID-19

The COVID-19 global pandemic has brought forth uncertainty and disruption to the global economy. As of September 30, 2021, we have not recorded any contingencies on our balance sheet related to COVID-19 with the exception of any allowances related to our receivables described in Note 6 to our financial statements in this Form 10-Q. To the extent COVID-19 continues to cause dislocations in the global economy, our financial condition, results of operations, and cash flows may be adversely impacted.

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Income Tax	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Tax	Income TaxWe recorded an income tax (expense) benefit of approximately $1 million and $(12) million for the three and nine months ended September 30, 2021, respectively, compared to a $(2) million and $(3) million income tax (expense) benefit in the three and nine months ended September 30, 2020, respectively. For the three and nine months ended September 30, 2021 and 2020, our income tax (expense) benefit was determined using the federal tax rate of 21%, and combined state tax rates, net of federal benefit, of approximately 3% for 2021 and 4% for 2020.

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Equity

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Equity

Equity

Dividends and Distributions

Our board of directors declared the following dividends in 2020 and 2021:

Announced Date	Record Date		Pay Date	Amount per share
2/20/2020	4/2/2020		4/10/2020	$	0.34
6/5/2020	7/2/2020		7/9/2020	0.34
8/6/2020	10/2/2020		10/9/2020	0.34
11/5/2020	12/28/2020	(1)	01/8/2021	0.34
2/18/2021	04/5/2021		04/12/2021	0.35
5/4/2021	7/2/2021		7/9/2021	0.35
8/5/2021	10/1/2021		10/8/2021	0.35

(1) This dividend was treated as a distribution in 2021 for tax purposes.

Equity Offerings

We have an effective universal shelf registration statement registering the potential offer and sale, from time to time and in one or more offerings, of any combination of our common stock, preferred stock, depositary shares, debt securities, warrants and rights (collectively referred to as the “securities”). We may offer the securities directly, through agents, or to or through underwriters by means of ordinary brokers’ transactions on the NYSE or otherwise at market prices prevailing at the time of sale or at negotiated prices and may include “at the market” (“ATM”) offerings to or through a market maker or into an existing trading market on an exchange or otherwise. We completed the following public offerings (including ATM issuances) of our common stock during 2021 and 2020:

Date/Period	Common Stock Offerings	Shares Issued	Price Per Share (2)		Net Proceeds (1)
		(amounts in millions, except per share amounts)
Q1 2020	ATM	4.500	$	25.84	$	115
Q2 2020	ATM	1.938	23.10		44
Q3 2020	ATM	0.875	33.81		29
Q4 2020	ATM	2.204	50.35		110
Q1 2021	ATM	1.639	63.55		103
Q2 2021	None	—	—		—
Q3 2021	ATM	0.857	57.56		49

(1)Net proceeds from the offerings are shown after deducting underwriting discounts, commissions and other offering costs.

(2)Represents the average price per share at which investors in our ATM offerings purchased our shares.

Equity-based Compensation Awards under our 2013 Plan

We have issued equity awards that vest from 2022 to 2025 subject to service, performance and market conditions. During the nine months ended September 30, 2021, our board of directors awarded employees and directors 434,159 shares of restricted stock, restricted stock units and LTIP Units that vest from 2022 to 2025. As of September 30, 2021, we have concluded that it is probable that the performance conditions will be met for previously issued restricted stock awards with performance conditions. Refer to Note 4 to our financial statements in this Form 10-Q for background on the LTIP Units.

For the three and nine months ended September 30, 2021 we recorded $4 million and $14 million of stock based compensation, respectively, compared to $4 million and $12 million during the three and nine months ended September 30, 2020. Of the current nine-month period expense, $2 million is related to the acceleration of compensation expense related to an employee with a change in employment status that occurred in the first quarter of 2021. The total unrecognized compensation expense related to awards of shares of restricted stock and restricted stock units was approximately $19 million as of September 30, 2021. We expect to recognize compensation expense related to our equity awards over a weighted-average term of approximately 2 years. A summary of the unvested shares of restricted common stock that have been issued is as follows:

	Restricted Shares of Common Stock	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	750,242	$	20.08	$	15.1
Granted	194,077	32.93		6.4
Vested	(576,880)	19.50		(11.3)
Forfeited	(262)	28.59		—
Ending Balance — December 31, 2020	367,177	$	27.77	$	10.2
Granted	80,886	59.41		4.8
Vested	(250,758)	29.22		(7.3)
Forfeited	(50)	63.59		—
Ending Balance — September 30, 2021	197,255	$	38.89	$	7.7

A summary of the unvested shares of restricted stock units that have market-based vesting conditions that have been issued is as follows:

	Restricted Stock Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	435,578	$	20.12	$	8.8
Granted	23,342	27.18		0.6
Incremental performance shares granted	216,932	18.99		4.1
Vested	(439,986)	19.04		(8.4)
Forfeited	(266)	25.90		—
Ending Balance — December 31, 2020	235,600	$	21.78	$	5.1
Granted	17,426	71.23		1.2
Incremental performance shares granted	171,180	20.24		3.5
Vested	(342,360)	20.24		(6.9)
Forfeited	—	—		—
Ending Balance — September 30, 2021	81,846	$	35.52	$	2.9

(1)    As discussed in Note 2 to our financial statements in this Form 10-Q, restricted stock units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers. The incremental performance shares granted relate to the vesting of an award at the 200% level.

A summary of the unvested LTIP Units that have time-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	201,310	$	25.84	$	5.2
Granted	165,346	18.56		3.1
Vested	(80,974)	25.87		(2.1)
Forfeited	—	—		—
Ending Balance — December 31, 2020	285,682	$	21.62	$	6.2
Granted	249,573	54.73		13.7
Vested	(151,209)	21.58		(3.3)
Forfeited	—	—		—
Ending Balance — September 30, 2021	384,046	$	43.15	$	16.6

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units.

A summary of the unvested LTIP Units that have market-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	180,500	$	26.70	$	4.8
Granted	132,204	12.25		1.6
Vested	—	—		—
Forfeited	—	—		—
Ending Balance — December 31, 2020	312,704	$	20.59	$	6.4
Granted	86,274	65.28		5.6
Incremental performance shares granted	51,500	21.09		1.1
Vested	(103,000)	21.09		(2.1)
Forfeited	—	—		—
Ending Balance — September 30, 2021	347,478	$	31.61	$	11.0

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units. LTIP Units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers.

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Earnings per Share of Common Stock

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Earnings per Share of Common Stock

Earnings per Share of Common StockBoth the net income or loss attributable to the non-controlling OP units and the non-controlling limited partners’ outstanding OP units have been excluded from the basic earnings per share and the diluted earnings per share calculations attributable to common stockholders. Unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are excluded from net income available to common shareholders in the computation of earnings per share pursuant to the two-class method. Certain share-based awards are included in the diluted share count to the extent they are dilutive as discussed in Note 2 to our financial statements in this Form 10-Q. To the extent our Senior Convertible Notes are dilutive under the if-converted method, we add back the interest expense to the numerator and include the weighted average shares of potential common stock over the period issuable upon conversion of the note in the denominator in calculating dilutive EPS as described in Note 2 to our financial statements in this Form 10-Q.

The computation of basic and diluted earnings per common share of common stock is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Numerator:	(in millions, except share and per share data)
Net income (loss) attributable to controlling stockholders and participating securities	$	(2.8)	$	21.2	$	64.2	$	57.5
Less: Dividends and distributions on participating securities	(0.2)		(0.2)		(0.7)		(0.7)
Less: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — basic	(3.0)		21.0		63.5		56.8
Add: Interest expense related to convertible notes under the if-converted method	—		0.1		1.0		0.1
Add: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — dilutive	$	(3.0)	$	21.1	$	64.5	$	56.9
Denominator:
Weighted-average number of common shares — basic	79,335,173		74,012,788		78,407,028		71,376,004
Weighted-average number of common shares — diluted	79,335,173		76,131,252		82,069,464		72,644,626
Basic earnings per common share	$	(0.04)	$	0.28	$	0.81	$	0.80
Diluted earnings per common share	$	(0.04)	$	0.28	$	0.79	$	0.78
Securities being allocated a portion of earnings:
Weighted-average number of OP units	559,686		321,261		459,848		301,582
	As of September 30, 2021		As of September 30, 2020
Participating securities:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions outstanding at period end	581,301		653,071
Potentially dilutive securities as of period end:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions	581,301		653,071
Restricted stock units	81,846		235,866
LTIP Units with market-based vesting conditions	347,478		312,704
Potential shares of common stock related to convertible notes	3,494,175		8,485,630

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Equity Method Investments

9 Months Ended

Sep. 30, 2021

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

Equity Method Investments

We have non-controlling unconsolidated equity investments in renewable energy and energy efficiency projects as well as in a joint venture that owns land with long-term triple net lease agreements to several solar projects. We recognized income (loss) from our equity method investments of approximately $(7) million and $70 million during the three and nine months ended September 30, 2021, respectively, compared to $17 million and $33 million during the three and nine months ended September 30, 2020, respectively.

We describe our accounting for non-controlling equity investments in Note 2 to our financial statements in this Form 10-Q. The following is a summary of the consolidated financial position and results of operations of the significant entities accounted for using the equity method.

	SunStrong Capital Holdings LLC		Rosie Target Co, LLC (1)		Lighthouse Renewable HoldCo LLC (1)		Summit Ridge Capital Holdings, LLC		Vivint Solar Asset 3 Holdco Parent LLC		Other Investments (2)		Total
	(in millions)
Balance Sheet
As of June 30, 2021
Current assets	$	87	$	11	$	11	$	51	$	60	$	636	$	856
Total assets	1,624		282		482		407		441		7,900		11,136
Current liabilities	63		5		41		58		8		587		762
Total liabilities	1,282		101		130		357		353		2,586		4,809
Members' equity	342		181		352		50		88		5,314		6,327
As of December 31, 2020
Current assets	92		25		22		18		86		539		782
Total assets	1,532		299		497		268		303		7,340		10,239
Current liabilities	48		19		22		43		3		518		653
Total liabilities	1,217		118		87		243		139		2,298		4,102
Members' equity	315		181		410		25		164		5,042		6,137
Income Statement
For the six months ended June 30, 2021
Revenue	67		6		(71)		6		11		4		23
Income (loss) from continuing operations	2		(3)		(88)		(5)		4		(283)		(373)
Net income (loss)	2		(3)		(88)		(5)		4		(283)		(373)
For the six months ended June 30, 2020
Revenue	61		—		—		1		—		118		180
Income (loss) from continuing operations	(4)		—		—		(2)		—		(1)		(7)
Net income (loss)	(4)		—		—		(2)		—		(1)		(7)

(1)     Component of the Lighthouse Partnerships described in Note 6 to our financial statements in this Form 10-Q.

(2)     Represents aggregated financial statement information for investments not separately presented.

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and such differences could be material. These financial statements have been prepared in accordance with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2020, as filed with the SEC. In the opinion of management, all adjustments necessary to present fairly our financial position, results of operations and cash flows have been included. Our results of operations for the three- and nine-month periods ended September 30, 2021 and 2020, are not necessarily indicative of the results to be expected for the full year or any other future period. Certain information and footnote disclosures normally included in our annual consolidated financial statements have been condensed or omitted. Certain amounts in the prior years have been reclassified to conform to the current year presentation.

The consolidated financial statements include our accounts and controlled subsidiaries, including the Operating Partnership. All material intercompany transactions and balances have been eliminated in consolidation.

Following the guidance for non-controlling interests in Financial Accounting Standards Board Accounting Standards Codification (“ASC”) 810, Consolidation ("ASC 810"), references in this report to our earnings per share and our net income and stockholders’ equity attributable to common stockholders do not include amounts attributable to non-controlling interests.

Consolidation and Equity Method Investments

Consolidation

We account for our investments in entities that are considered voting interest entities or variable interest entities (“VIEs”) under ASC 810 and assess whether we should consolidate these entities on an ongoing basis. We have established various special purpose entities or securitization trusts for the purpose of securitizing certain assets that are not consolidated in our financial statements as described below in Securitization of Financial Assets.

Since we have assessed that we have power over and receive the benefits from those special purpose entities that are formed for the purpose of holding our assets on our balance sheet, we have concluded we are the primary beneficiary and should consolidate these entities under the provisions of ASC 810. We also have certain subsidiaries we deem to be voting interest entities that we control through our ownership of voting interests and accordingly consolidate.

Certain of our equity method investments were determined to be interests in VIEs in which we are not the primary beneficiary, as we do not direct the significant activities of these entities, and thus we account for those investments as Equity Method Investments as discussed below. Our maximum exposure to loss through these investments is limited to their recorded values. However, we may provide financial commitments to these VIEs or guarantees of certain of their obligations. Certain other entities in which we have equity investments have been assessed to be voting interest entities and are not consolidated as we exert significant influence rather than control through our ownership of voting interests, and accordingly account for them as equity method investments described below.

Equity Method Investments

We have made equity investments in various renewable energy and energy efficiency projects. These investments are typically owned in holding companies (using limited liability companies (“LLCs”) taxed as partnerships) where we partner with either the operator of the project or other institutional investors. We share in the cash flows, income and tax attributes according to a negotiated schedule (which typically does not correspond with our ownership percentages). Investors, if any, in a preferred return position typically receive a priority distribution of all or a portion of the project's cash flows, and in some cases, tax attributes. Once the preferred return, if applicable, is achieved, the partnership “flips” and the operator of the project along with any other common equity investors receive a larger portion of the cash flows, with the previously preferred investors retaining an on-going residual interest.

Our equity investments in renewable energy or energy efficiency projects are accounted for under the equity method of accounting. Under the equity method of accounting, the carrying value of these equity method investments is determined based on amounts we invested, adjusted for the equity in earnings or losses of the investee allocated based on the LLC agreement, less distributions received. For the LLC agreements that contain preferences with regard to cash flows from operations, capital events and liquidation, we reflect our share of profits and losses by determining the difference between our claim on the investee’s book value at the beginning and the end of the period, which is adjusted for distributions received and contributions made. This claim is calculated as the amount we would receive if the investee were to liquidate all of its assets at the recorded amounts determined in accordance with GAAP and distribute the resulting cash to creditors and investors in accordance with their respective priorities. This method is referred to as the hypothetical liquidation at book value method (“HLBV”).

Any difference between the amount of our investment and the amount of underlying equity in net assets is generally amortized over the life of the assets and liabilities to which the difference relates. Cash distributions received from each equity method investment are classified as operating activities to the extent of cumulative earnings for each investment in our consolidated statements of cash flows. Our initial investment and additional cash distributions beyond that which are classified as operating activities are classified as investing activities in our consolidated statements of cash flows. We typically recognize earnings one quarter in arrears for certain of these investments to allow for the receipt of financial information.

We evaluate on a quarterly basis whether our investments accounted for using the equity method have an other than temporary impairment (“OTTI”). An OTTI occurs when the estimated fair value of an investment is below the carrying value and the difference is determined to not be recoverable. This evaluation requires significant judgment regarding, but not limited to, the severity and duration of the impairment; the ability and intent to hold the securities until recovery; financial condition, liquidity, and near-term prospects of the issuer; specific events; and other factors.

Government and Commercial Receivables

Government and Commercial Receivables

Government and commercial receivables (“receivables”) include project loans and receivables. These receivables are separately presented in our balance sheet to illustrate the differing nature of the credit risk related to these assets. Unless otherwise noted, we generally have the ability and intent to hold our receivables for the foreseeable future and thus they are classified as held for investment. Our ability and intent to hold certain receivables may change from time to time depending on a number of factors including economic, liquidity and capital market conditions. At inception of the arrangement, the carrying value of receivables held for investment represents the present value of the note, lease or other payments, net of any unearned fee income, which is recognized as income over the term of the note or lease using the effective interest method. Receivables that are held for investment are carried at amortized cost, net of any unamortized acquisition premiums or discounts and include

origination and acquisition costs, as applicable. Our initial investment and principal repayments of these receivables are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows. Receivables that we intend to sell in the short-term are classified as held-for-sale and are carried at the lower of amortized cost or fair value on our balance sheet, which is assessed on an individual asset basis. The purchases and proceeds from receivables that we intend to sell at origination are classified as operating activities in our consolidated statements of cash flows. Interest collected is classified as an operating activity in our consolidated statements of cash flows. Certain of our receivables may include the ability to defer required interest payments in exchange for increasing the receivable balance at the borrower's option. We generally accrue this paid-in-kind (“PIK”) interest when collection is expected, and cease accruing PIK interest if there is insufficient value to support the accrual or we expect that any portion of the principal or interest due is not collectible.

We evaluate our receivables for an allowance as determined under ASC Topic 326 Financial Instruments- Credit Losses (“Topic 326”) and for our internally derived asset performance categories included in Note 6 to our financial statements in this Form 10-Q on at least a quarterly basis and more frequently when economic or other conditions warrant such an evaluation. When a receivable becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally consider the receivable delinquent or impaired and place the receivable on non-accrual status and cease recognizing income from that receivable until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a receivable’s status significantly improves regarding the debtor’s ability to service the debt or other obligations, we will remove it from non-accrual status.

We determine our allowance based on the current expectation of credit losses over the contractual life of our receivables as required by Topic 326. We use a variety of methods in developing our allowance, including discounted cash flow analysis and probability-of-default/loss given default (“PD/LGD”) methods. In developing our estimates, we consider our historical experience with our and similar assets in addition to our view of both current conditions and what we expect to occur within a period of time for which we can develop reasonable and supportable forecasts, typically two years. For periods following the reasonable and supportable forecast period, we revert to historical information when developing assumptions used in our estimates. In developing our forecasts, we consider a number of qualitative and quantitative factors in our assessment, including a project’s operating results, loan-to-value ratio, any cash reserves, the ability of expected cash from operations to cover the cash flow requirements currently and into the future, key terms of the transaction, the ability of the borrower to refinance the transaction, other credit support from the sponsor or guarantor and the project’s collateral value. In addition, we consider the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, such as unemployment rates and power prices, the impact of any variation in weather and the historical and anticipated trends in interest rates, defaults and loss severities for similar transactions. For those assets where we record our allowance using a discounted cash flow method, we have elected to record the change in allowance due solely to the passage of time through the provision for loss on receivables in our income statement. For assets where the obligor is a publicly rated entity, we consider the published historical performance of entities with similar ratings in developing our estimate of an allowance, making adjustments determined by management to be appropriate during the reasonable and supportable forecast period. We have made certain loan commitments that are within the scope of Topic 326. When estimating an allowance for these loan commitments we consider the probability of certain amounts to be funded and apply either a discounted cash flow or PD/LGD methodology as described above. We charge off receivables against the allowance, if any, when we determine the unpaid principal balance is uncollectible, net of recovered amounts. Any provision we record for an allowance is a non-cash reconciling item to cash from operating activities in our consolidated statements of cash flows.

Real Estate

Real Estate

Real estate consists of land or other real property and its related lease intangibles, net of any amortization. Our real estate is generally leased to tenants on a triple net lease basis, whereby the tenant is responsible for all operating expenses relating to the property, generally including property taxes, insurance, maintenance, repairs and capital expenditures. Certain real estate transactions may be characterized as "failed sale-leaseback" transactions as defined under ASC Topic 842, Leases, and thus are accounted for similarly to our commercial receivables as described above in Government and Commercial Receivables.

For our other real estate lease transactions that are classified as operating leases, the scheduled rental revenue typically varies during the lease term and thus rental income is recognized on a straight-line basis, unless there is considerable risk as to collectability, so as to produce a constant periodic rent over the term of the lease. Accrued rental income is the aggregate difference between the scheduled rents that vary during the lease term and the income recognized on a straight-line basis and is recorded in other assets. Expenses, if any, related to the ongoing operation of leases where we are the lessor, are charged to operations as incurred. Our initial investment is classified as investing activities and income collected for rental income is classified as operating activities in our consolidated statements of cash flows.

When our real estate transactions are treated as an asset acquisition with an operating lease, we typically record our real estate purchases at cost, including acquisition and closing costs, which is allocated to each tangible and intangible asset acquired on a relative fair value basis.

The fair value of the tangible assets of an acquired leased property is determined by valuing the property as if it were vacant, and the “as-if-vacant” value is then allocated to land, building and tenant improvements, if any, based on the determination of the fair values of these assets. The as-if-vacant fair value of a property is typically determined by management based on appraisals by a qualified appraiser. In determining the fair value of the identified intangibles of an acquired property, above-market and below-market in-place lease values are valued based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining term of the lease, including renewal periods reasonably certain of being exercised by the lessee. The capitalized off-market lease values are amortized as an adjustment of rental income over the term used to value the intangible. We also record, as appropriate, an intangible asset for in-place leases. The value of the leases in place at the time of the transaction is equal to the potential income lost if the leases were not in place. The amortization of this intangible occurs over the initial term unless management believes that it is reasonably certain that the tenant would exercise the renewal option, in which case the amortization would extend through the renewal period. If a lease were to be terminated, all unamortized amounts relating to that lease would be written off.

Investments

Investments

Investments are debt securities that meet the criteria of ASC 320, Investments-Debt and Equity Securities. We have designated our debt securities as available-for-sale and carry these securities at fair value on our balance sheet. Unrealized gains and losses, to the extent not considered to be credit related, on available-for-sale debt securities are recorded as a component of accumulated other comprehensive income (“AOCI”) in equity on our balance sheet. When a security is sold, we reclassify the AOCI to earnings based on specific identification. Our initial investment and principal repayments of these investments are classified as investing activities and the interest collected is classified as operating activities in our consolidated statements of cash flows.

We evaluate our investments for impairment on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. Our impairment assessment is a subjective process requiring the use of judgments and assumptions. Accordingly, we regularly evaluate the extent and impact of any credit deterioration associated with the financial and operating performance and value of the underlying project. We consider several qualitative and quantitative factors in our assessment. The primary factor in our assessment is the current fair value of the security, while other factors include changes in the credit rating, performance of the underlying project, key terms of the transaction, the value of any collateral and any support provided by the sponsor or guarantor.

To the extent that we have identified an impairment for a security, intend to hold the investment to maturity, and do not expect that we will be required to sell the security prior to recovery of the amortized cost basis, we will recognize only the credit component of the unrealized loss in earnings by recording an allowance against the amortized cost of the asset as required by Topic 326. We determine the credit component using the difference between the security’s amortized cost basis and the present value of its expected future cash flows, discounted using the effective interest method or its estimated collateral value. Any remaining unrealized loss due to factors other than credit is recorded in AOCI.

To the extent we hold investments with a fair value less than the amortized cost and we have made the decision to sell the security or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, we recognize the entire portion of the impairment in earnings.

Premiums or discounts on investment securities are amortized or accreted into interest income using the effective interest method.

Securitization of Financial Assets

Securitization of Financial Assets

We have established various special purpose entities or securitization trusts for the purpose of securitizing certain financial assets. We determined that the trusts used in securitizations are VIEs, as defined in ASC 810. When we conclude that we are not the primary beneficiary of certain trusts because we do not have power over those trusts' significant activities, we do not consolidate the trust. We typically serve as primary or master servicer of these trusts; however, as the servicer, we do not have the power to make significant decisions impacting the performance of the trusts.

We account for transfers of financial assets to these securitization trusts as sales pursuant to ASC 860, Transfers and Servicing (“ASC 860”), when we have concluded the transferred assets have been isolated from the transferor (i.e., put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership) and we have surrendered control over the transferred assets. When we are unable to conclude that we have been sufficiently isolated from the securitized financial assets, we treat such trusts as secured borrowings, retaining the assets on our balance sheet and recording the amounts due to the trust investor as non-recourse debt.

For transfers treated as sales under ASC 860, we have received true-sale-at-law and non-consolidation legal opinions for all of our securitization trust structures to support our conclusion regarding the transferred financial assets. When we sell financial assets in securitizations, we generally retain interests in the form of servicing rights and residual assets, which we refer to as securitization assets.

Gain or loss on the sale of financial assets is calculated based on the excess of the proceeds received from the securitization (less any transaction costs) plus any retained interests obtained over the cost basis of the assets sold. For retained interests, we generally estimate fair value based on the present value of future expected cash flows using our best estimates of the key assumptions of anticipated losses, prepayment rates, and current market discount rates commensurate with the risks involved. Cash flows related to our securitizations at origination are classified as operating activities in our consolidated statements of cash flows.

We initially account for all separately recognized servicing assets and servicing liabilities at fair value and subsequently measure such servicing assets and liabilities using the amortization method. Servicing assets and liabilities are amortized in proportion to, and over the period of, estimated net servicing income with servicing income recognized as earned. We assess servicing assets for impairment at each reporting date. If the amortized cost of servicing assets is greater than the estimated fair value, we will recognize an impairment in net income.

Our other retained interest in securitized assets, the residual assets, are accounted for similar to available-for-sale debt securities and carried at fair value. Income related to the residual assets is recognized using the effective interest rate method and included in fee income in the income statement. Our residual assets are evaluated for impairment on a quarterly basis. A residual asset is impaired if its fair value is less than its carrying value. The credit component of impairments, if any, are recognized by recording an allowance against the amortized cost of the asset. For changes in expected cash flows, we will calculate a new yield based on the current amortized cost of the residual assets and the revised expected cash flows. This yield is used prospectively to recognize our income related to these assets.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include short-term government securities, certificates of deposit and money market funds, all of which had an original maturity of three months or less at the date of purchase. These securities are carried at their purchase price, which approximates fair value.

Restricted Cash

Restricted Cash

Restricted cash includes cash and cash equivalents set aside with certain lenders primarily to support obligations outstanding as of the balance sheet dates. Restricted cash is reported as part of other assets in the consolidated balance sheets. Refer to Note 3 to our financial statements in this Form 10-Q for disclosure of the balances of restricted cash included in other assets.

Convertible Notes

Convertible Notes

We have issued convertible senior notes that are accounted for in accordance with ASC 470-20, Debt with Conversion and Other Options, and ASC 815, Derivatives and Hedging (“ASC 815”). Under ASC 815, issuers of certain convertible debt instruments are generally required to separately account for the conversion option of the convertible debt instrument as either a derivative or equity, unless it meets the scope exemption for contracts indexed to, and settled in, an issuer’s own equity. Since this conversion option is both indexed to our equity and can only be settled in our common stock, we have met the scope exemption, and therefore, we are not separately accounting for the embedded conversion option. The initial issuance and any principal repayments are classified as financing activities and interest payments are classified as operating activities in our consolidated statements of cash flows. If converted, the carrying value of each bond is reclassified into stockholders' equity.

Income Taxes

Income Taxes

We elected and qualified to be taxed as a REIT for U.S. federal income tax purposes, commencing with our taxable year ended December 31, 2013. We also have taxable REIT subsidiaries (“TRS”) that are taxed separately, and that will generally be subject to U.S. federal, state and local income taxes as well as taxes of foreign jurisdictions, if any. To qualify as a REIT, we must meet on an ongoing basis several organizational and operational requirements, including a requirement that we currently distribute at least 90% of our REIT's net taxable income before dividends paid, excluding capital gains, to our stockholders. As a REIT, we are not subject to U.S. federal corporate income tax on that portion of net income that is currently distributed to our owners.

We account for income taxes under ASC 740, Income Taxes (“ASC 740”) for our TRS using the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to the differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities from a change in tax rates is

recognized in earnings in the period when the new rate is enacted. We evaluate any deferred tax assets for valuation allowances based on an assessment of available evidence including sources of taxable income, prior years taxable income, any existing taxable temporary differences and our future investment and business plans that may give rise to taxable income. We treat any tax credits we receive from our equity investments in renewable energy projects as reductions of federal income taxes of the year in which the credit arises. Any deferred tax impacts resulting from transfers of assets to or from our TRS are recorded as an adjustment to additional paid-in capital, as it is a transfer amongst entities under common control.We apply ASC 740 with respect to how uncertain tax positions should be recognized, measured, presented, and disclosed in the financial statements. This guidance requires the accounting and disclosure of tax positions taken or expected to be taken in the course of preparing our tax returns to determine whether the tax positions are “more likely than not” to be sustained by the applicable tax authority. We are required to analyze all open tax years, as defined by the statute of limitations, for all major jurisdictions, which includes U.S. federal and certain states.

Equity-Based Compensation

Equity-Based Compensation

In 2013, we adopted the 2013 Hannon Armstrong Sustainable Infrastructure Capital, Inc. Equity Incentive Plan (as amended, the “2013 Plan”), which provides for grants of stock options, stock appreciation rights, restricted stock units, shares of restricted common stock, phantom shares, dividend equivalent rights, long-term incentive-plan units (“LTIP units”) and other restricted limited partnership units issued by our Operating Partnership and other equity-based awards. From time to time, we may grant equity or equity-based awards as compensation to our independent directors, employees, advisors, consultants and other personnel under our 2013 Plan. Certain awards earned under the plan are based on achieving various performance targets, which are generally earned between 0% and 200% of the initial target, depending on the extent to which the performance target is met. In addition to performance targets, certain LTIP units issued by our Operating Partnership also require a certain level of appreciation of partnership interests to occur before parity is reached and LTIP units can be converted to limited partnership units.

We record compensation expense for grants made under the 2013 Plan in accordance with ASC 718, Compensation-Stock Compensation. We record compensation expense for unvested grants that vest solely based on service conditions on a straight-line basis over the vesting period of the entire award based upon the fair market value of the grant on the date of grant. Fair market value for restricted common stock is based on our share price on the date of grant. For awards where the vesting is contingent upon achievement of certain performance targets, compensation expense is measured based on the fair market value on the grant date and is recorded over the requisite service period (which includes the performance period). Actual performance results at the end of the performance period determines the number of shares that will ultimately be awarded. We have also issued awards where the vesting is contingent upon service being provided for a defined period and certain market conditions being met. The fair value of these awards, as measured at the grant date, is recognized over the requisite service period, even if the market conditions are not met. The grant date fair value of these awards was developed by an independent appraiser using a Monte Carlo simulation.

Earnings Per Share

Earnings Per ShareWe compute earnings per share of common stock in accordance with ASC 260, Earnings Per Share. Basic earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period excluding the weighted average number of unvested grants under the 2013 Plan, if applicable (“participating securities” as defined in Note 12 to our financial statements to this Form 10-Q). Diluted earnings per share is calculated by dividing net income attributable to controlling stockholders (after consideration of the earnings allocated to unvested grants under the 2013 Plan, if applicable) by the weighted-average number of shares of common stock outstanding during the period plus other potential common stock instruments if they are dilutive. Other potentially dilutive common stock instruments include our unvested restricted stock, other equity-based awards, and convertible notes. The restricted stock and other equity-based awards are included if they are dilutive using the treasury stock method. The treasury stock method assumes that theoretical proceeds received for future service provided is used to purchase shares of treasury stock at the average market price per share of common stock, which is deducted from the total shares of potential common stock included in the calculation. When unvested grants are dilutive, the earnings allocated to these dilutive unvested grants are not deducted from the net income attributable to controlling stockholders when calculating diluted earnings per share. The convertible notes are included if they are dilutive using the if-converted method. The if-converted method removes interest expense related to the convertible notes from the net income attributable to controlling stockholders and includes the weighted average shares of potential common stock over the period issuable upon conversion of the note. No adjustment is made for shares of potential common stock that are anti-dilutive during a period.

Segment Reporting

Segment Reporting

We make equity and debt investments in the energy efficiency, renewable energy and sustainable infrastructure markets. We manage our business as a single portfolio and report all of our activities as one business segment.

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

Accounting standards updates issued before November 5, 2021, and effective after September 30, 2021, are not expected to have a material effect on our consolidated financial statements and related disclosures.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value and Carrying Value of Financial Assets and Liabilities

The tables below illustrate the estimated fair value of our financial instruments on our balance sheet. Unless otherwise discussed below, fair value for our Level 2 and Level 3 measurements is measured using a discounted cash flow model, contractual terms and inputs which consist of base interest rates and spreads over base rates which are based upon market observation and recent comparable transactions. An increase in these inputs would result in a lower fair value and a decline would result in a higher fair value. Our senior unsecured notes and convertible notes are valued using a market based approach and observable prices. The receivables held-for-sale, if any, are carried at the lower of cost or fair value.

	As of September 30, 2021
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	139	$	126	Level 3
Commercial receivables	1,397		1,225		Level 3
Investments (1)	18		18		Level 3
Securitization residual assets (2)	198		198		Level 3
Liabilities (3)
Credit facilities	$	25	$	25	Level 3
Non-recourse debt	487		449		Level 3
Senior unsecured notes	1,838		1,793		Level 2
Convertible notes	203		158		Level 2

(1)The amortized cost of our investments as of September 30, 2021, was $17 million.

(2)Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of September 30, 2021 was $184 million.

(3)Fair value and carrying value exclude unamortized financing costs.

	As of December 31, 2020
	Fair Value		Carrying Value		Level
	(in millions)
Assets
Government receivables	$	282	$	248	Level 3
Commercial receivables	1,018		965		Level 3
Investments (1)	55		55		Level 3
Securitization residual assets (2)	159		159		Level 3
Liabilities (3)
Credit facilities	$	23	$	23	Level 3
Non-recourse debt	678		605		Level 3
Senior unsecured notes	1,362		1,299		Level 2
Convertible notes	552		296		Level 2

(1)    The amortized cost of our investments as of December 31, 2020, was $51 million.

(2)    Included in securitization assets on the consolidated balance sheet. This amount excludes securitization servicing assets, which are carried at amortized cost. The amortized cost of our securitization assets as of December 31, 2020 was $141 million.

(3)    Fair value and carrying value exclude unamortized financing costs.

Schedule of Reconciliation of Level 3 Investments Securities

The following table reconciles the beginning and ending balances for our Level 3 investments that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	18	$	46	$	55	$	75
Purchases of investments	—		5		5		23
Principal payments on investments	—		—		—		(2)
Sale of investments	—		—		(38)		(53)
Realized gains on investments recorded in gain on sale of receivables and investments	—		—		—		5
Unrealized gains (losses) on investments recorded in OCI	—		1		(4)		4
Balance, end of period	$	18	$	52	$	18	$	52

The following table reconciles the beginning and ending balances for our Level 3 securitization residual assets that are carried at fair value on a recurring basis:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Balance, beginning of period	$	188	$	135	$	159	$	122
Accretion of securitization residual assets	2		2		6		4
Additions to securitization residual assets	11		9		45		36
Collections of securitization residual assets	(2)		(4)		(8)		(9)
Sales of securitization residual assets	—		—		—		(21)
Unrealized gains (losses) on securitization residual assets recorded in OCI	(1)		—		(4)		10
Balance, end of period	$	198	$	142	$	198	$	142

Schedule of Investments in Unrealized Loss Position

The following table illustrates our investments in an unrealized loss position:

	Estimated Fair Value				Unrealized Losses (1)
	Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months		Securities with a loss shorter than 12 months		Securities with a loss longer than 12 months
	(in millions)
September 30, 2021	$	7	$	—	$	0.2	$	—
December 31, 2020	—		6		—		0.3

(1)    Loss position is due to interest rates movements. We have the intent and ability to hold these investments until a recovery of fair value.

Schedule of Cash Deposits Subject to Credit Risk

We had cash deposits that are subject to credit risk as shown below:

	September 30, 2021		December 31, 2020
	(in millions)
Cash deposits	$	413	$	286
Restricted cash deposits (included in other assets)	26		24
Total cash deposits	$	439	$	310
Amount of cash deposits in excess of amounts federally insured	$	437	$	309

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Securitization of Financial Assets (Tables)

9 Months Ended

Sep. 30, 2021

Transfers and Servicing [Abstract]

Schedule of Certain Transactions with Securitization Trusts

The following summarizes certain transactions with securitization trusts: 

	As of and for the nine months ended September 30,
	2021		2020
	(in millions)
Gains on securitizations	$	55	$	34
Cost of financial assets securitized	665		173
Proceeds from securitizations	720		207
Residual and servicing assets	204		147
Cash received from residual and servicing assets	9		9

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Our Portfolio (Tables)

9 Months Ended

Sep. 30, 2021

Investments [Abstract]

Schedule of Analysis of Portfolio by Type of Obligor and Credit Quality

The following is an analysis of the Performance Ratings of our Portfolio as of September 30, 2021, which is assessed quarterly:

	Portfolio Performance
	1 (1)						2 (2)			3 (3)			Total
	Government			Commercial			Commercial			Commercial
Receivable vintage	(dollars in millions)
2021	$	—		$	203		$	—		$	—		$	203
2020	—			190			—			—			190
2019	—			483			6			—			489
2018	—			260			—			—			260
2017	31			1			8			—			40
2016	14			59			—			—			73
Prior to 2016	81			46			—			8			135
Total receivables	126			1,242			14			8			1,390
Less: Allowance for loss on receivables	—			(26)			(5)			(8)			(39)
Net receivables (4)	126			1,216			9			—			1,351
Receivables held-for-sale	—			—			—			—			—
Investments	11			7			—			—			18
Real estate	—			357			—			—			357
Equity method investments (5)	—			1,442			26			—			1,468
Total	$	137		$	3,022		$	35		$	—		$	3,194
Percent of Portfolio	4		%	95		%	1		%	—		%	100		%
Average remaining balance (6)	$	6		$	13		$	10		$	4		$	12

(1)This category includes our assets where based on our credit criteria and performance to date we believe that our risk of not receiving our invested capital remains low.

(2)This category includes our assets where based on our credit criteria and performance to date we believe there is a moderate level of risk to not receiving some or all of our invested capital.

(3)This category includes our assets where based on our credit criteria and performance to date, we believe there is substantial doubt regarding our ability to recover some or all of our invested capital. Included in this category are two commercial receivables with a combined total carrying value of approximately $8 million as of September 30, 2021, which we have held on non-accrual status since 2017. We expect to continue to pursue our legal claims with regards to these assets. This category previously contained an equity method investment in a wind project with no book value due to our allocation of impairment losses recorded by the project sponsor. We sold this equity method investment in the third quarter for nominal proceeds.

(4)Total reconciles to the total of the government receivables and commercial receivables lines of the consolidated balance sheets.

(5)Some of the individual projects included in portfolios that make up our equity method investments have government off-takers. As they are part of large portfolios, they are not classified separately. 

(6)Average remaining balance is calculated gross of allowance for loss on receivables and excludes approximately 152 transactions each with outstanding balances that are less than $1 million and that in the aggregate total $72 million.

Schedule of Carrying Value, Expected Loan Funding Commitments, and Allowance by Type of Receivable

Below is a summary of the carrying value, expected loan funding commitments, and allowance by type of receivable or “Portfolio Segment”, as defined by Topic 326, as of September 30, 2021 and December 31, 2020:

	September 30, 2021						December 31, 2020
	Gross Carrying Value		Loan Funding Commitments		Allowance		Gross Carrying Value		Loan Funding Commitments		Allowance
	(in millions)
Government (1)	$	126	$	—	$	—	$	248	$	—	$	—
Commercial (2)	1,264		290		39		1,002		282		36
Total	$	1,390	$	290	$	39	$	1,250	$	282	$	36

(1)As of September 30, 2021, our government receivables include $28 million of U.S. federal government transactions and $98 million of transactions where the ultimate obligors are state or local governments.

Risk characteristics of our government receivables include the energy savings or the power output of the projects and the ability of the government obligor to generate revenue for debt service, via taxation or other means. Transactions may have guarantees of energy savings or other performance support from third-party service providers, which typically are entities, directly or whose ultimate parent entity is, rated investment grade by an independent rating agency. All of our government receivables are included in Performance Rating 1 in the Portfolio Performance table above. Our allowance for government receivables is primarily calculated by using PD/LGD methods as discussed in Note 2 to our financial statements in this Form 10-Q. Our expectation of credit losses for these receivables is immaterial given the high credit-quality of the obligors.

(2)As of September 30, 2021, this category of assets includes $742 million of mezzanine loans made on a non-recourse basis to special purpose subsidiaries of residential solar companies which are secured by residential solar assets where we rely on certain limited indemnities, warranties, and other obligations of the residential solar companies or their other subsidiaries. Approximately $647 million of our commercial receivables are loans made to entities in which we also have non-controlling equity investments of approximately $76 million. This total also includes $47 million of lease agreements where we hold legal title to the underlying real estate which are treated under GAAP as receivables since they were deemed to be failed sale/leaseback transactions as described in Note 2 to our financial statements in this Form 10-Q.

Risk characteristics of our commercial receivables include a project’s operating risks, which include the impact of the overall economic environment, the climate solutions sector, the effect of local, industry, and broader economic factors, the impact of any variation in weather and trends in interest rates. We use assumptions related to these risks to estimate an allowance using a discounted cash flow analysis or the PD/LGD method as discussed in Note 2 to our financial statements in this Form 10-Q. All of our commercial receivables are included in Performance Rating 1 in the Portfolio Performance table above, except for $14 million of receivables included in Performance Category 2 and the $8 million of receivables we have placed on non-accrual status which are included in Performance Rating 3. For those assets in Performance Rating 1, the credit worthiness of the obligor combined with the various structural protections of our assets cause us to believe we have a low risk we will not receive our invested capital, however we recorded a $26 million allowance on these $1.2 billion in assets as a result of lower probability assumptions utilized in our allowance methodology.

The following table reconciles our beginning and ending allowance for loss on receivables by Portfolio Segment:

	Three months ended September 30, 2021				Three months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance	$	—	$	37	$	—	$	29
Provision for loss on receivables	—		2		—		2
Ending balance	$	—	$	39	$	—	$	31
	Nine months ended September 30, 2021				Nine months ended September 30, 2020
	Government		Commercial		Government		Commercial
	(in millions)
Beginning balance (1)	$	—	$	36	$	—	$	26
Provision for loss on receivables	—		3		—		5
Ending balance	$	—	$	39	$	—	$	31

(1)For the nine months ended September 30, 2020, the beginning balance represents January 1, 2020, the adoption date of Topic 326. The beginning balance includes the pre-tax allowance for loss on receivables of $17 million recorded upon adoption which reflects our estimated loss as of that date under the new standard as well as the $8 million of receivables which were previously on non-accrual status and fully reserved.

Schedule of Anticipated Maturity Dates of Financing Receivables and Investments and Weighted Average Yield

The following table provides a summary of our anticipated maturity dates of our receivables and the weighted average yield for each range of maturities as of September 30, 2021:

	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period (excluding allowance)	$	1,390		$	67		$	56		$	482		$	785
Weighted average yield by period	8.2		%	7.6		%	6.3		%	8.4		%	8.3		%

Investments

The following table provides a summary of our anticipated maturity dates of our investments and the weighted average yield for each range of maturities as of September 30, 2021:

	Total			Less than 1 year			1-5 years			5-10 years			More than 10 years
	(dollars in millions)
Maturities by period	$	18		$	—		$	—		$	—		$	18
Weighted average yield by period	4.1		%	—		%	—		%	—		%	4.1		%

Schedule of Components of Real Estate Portfolio

The components of our real estate portfolio as of September 30, 2021 and December 31, 2020, were as follows: 

	September 30, 2021		December 31, 2020
	(in millions)
Real estate
Land	$	269	$	269
Lease intangibles	104		104
Accumulated amortization of lease intangibles	(16)		(14)
Real estate	$	357	$	359

Schedule of Future Amortization Expense of Intangible Assets

As of September 30, 2021, the future amortization expense of the intangible assets and the future minimum rental income payments under our land lease agreements are as follows:

	Future Amortization Expense		Minimum Rental Income Payments
	(in millions)
From October 1, 2021 to December 31, 2021	$	1	$	5
2022	3		22
2023	3		23
2024	3		24
2025	3		24
2026	3		24
Thereafter	72		717
Total	$	88	$	839

Schedule of Equity Method Investments

As of September 30, 2021, we held the following equity method investments:

Investment Date	Investee	Carrying Value
		(in millions)
Various	Jupiter Equity Holdings LLC	$	540
Various	Lighthouse Partnerships (1)	211
March 2020	University of Iowa Energy Collaborative Holdings LLC	121
Various	Phase V Class A LLC	109
Various	Other investees	487
	Total equity method investments	$	1,468

(1)     Represents the total of three equity investments in a portfolio of renewable assets.

The following is a summary of the consolidated financial position and results of operations of the significant entities accounted for using the equity method.

	SunStrong Capital Holdings LLC		Rosie Target Co, LLC (1)		Lighthouse Renewable HoldCo LLC (1)		Summit Ridge Capital Holdings, LLC		Vivint Solar Asset 3 Holdco Parent LLC		Other Investments (2)		Total
	(in millions)
Balance Sheet
As of June 30, 2021
Current assets	$	87	$	11	$	11	$	51	$	60	$	636	$	856
Total assets	1,624		282		482		407		441		7,900		11,136
Current liabilities	63		5		41		58		8		587		762
Total liabilities	1,282		101		130		357		353		2,586		4,809
Members' equity	342		181		352		50		88		5,314		6,327
As of December 31, 2020
Current assets	92		25		22		18		86		539		782
Total assets	1,532		299		497		268		303		7,340		10,239
Current liabilities	48		19		22		43		3		518		653
Total liabilities	1,217		118		87		243		139		2,298		4,102
Members' equity	315		181		410		25		164		5,042		6,137
Income Statement
For the six months ended June 30, 2021
Revenue	67		6		(71)		6		11		4		23
Income (loss) from continuing operations	2		(3)		(88)		(5)		4		(283)		(373)
Net income (loss)	2		(3)		(88)		(5)		4		(283)		(373)
For the six months ended June 30, 2020
Revenue	61		—		—		1		—		118		180
Income (loss) from continuing operations	(4)		—		—		(2)		—		(1)		(7)
Net income (loss)	(4)		—		—		(2)		—		(1)		(7)

(1)     Component of the Lighthouse Partnerships described in Note 6 to our financial statements in this Form 10-Q.

(2)     Represents aggregated financial statement information for investments not separately presented.

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Credit facilities and commercial paper notes (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Additional Detail on Credit Facility

The following table provides additional detail on our Secured Credit Facilities as of September 30, 2021:

	Rep-Based  Facility		Approval-Based Facility
	(dollars in millions)
Outstanding balance	$	—	$	—
Value of collateral pledged to credit facility	24		89
Available capacity based on pledged assets	11		64
Weighted average short-term borrowing rate	N/A		N/A

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Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Outstanding Non-Recourse Asset-Backed Debt and Bank Loans

We have outstanding the following asset-backed non-recourse debt and bank loans:

	Outstanding Balance as of						Anticipated Balance at Maturity		Carrying Value of Assets Pledged as of
	September 30, 2021		December 31, 2020		Interest Rate	Maturity Date			September 30, 2021		December 31, 2020		Description of Assets Pledged
	(dollars in millions)
HASI Sustainable Yield Bond 2015-1A	$	78	$	81	4.28%	October 2034	$	—	$	133	$	134	Receivables, real estate and real estate intangibles
HASI Sustainable Yield Bond 2015-1B Note (1)	—		13		5.41%	October 2034	—		133		134		Class B Bond of HASI Sustainable Yield Bond 2015-1
HASI SYB Trust 2016-2	66		67		4.35%	April 2037	—		66		71		Receivables
HASI ECON 101 Trust (2)	—		126		3.57%	May 2041	—		—		133		Receivables and investments
HASI SYB Trust 2017-1	147		150		3.86%	March 2042	—		203		205		Receivables, real estate and real estate intangibles
Lannie Mae Series 2019-01	93		95		3.68%	January 2047	—		107		107		Receivables, real estate and real estate intangibles
Other non-recourse debt (3)	65		73		3.15% - 7.45%	2022 to 2032	18		65		73		Receivables
Unamortized financing costs	(11)		(12)
Non-recourse debt (4)	$	438	$	593

(1)The Company repurchased this note in April of 2021.

(2)In March 2021, contractual terms were modified resulting in the deconsolidation of both this debt and the related pledged assets. We recognized a loss of approximately $3 million, which is included in gain on sale of receivables and investments in our income statement.

(3)Other non-recourse debt consists of various debt agreements used to finance certain of our receivables. Scheduled debt service payment requirements are equal to or less than the cash flows received from the underlying receivables.

(4)The total collateral pledged against our non-recourse debt was $574 million and $723 million as of September 30, 2021 and December 31, 2020, respectively. In addition, $25 million and $23 million of our restricted cash balance was pledged as collateral to various non-recourse loans as of September 30, 2021 and December 31, 2020, respectively.

Schedule of Minimum Maturities of Debt

The stated minimum maturities of non-recourse debt as of September 30, 2021, were as follows:

	Future minimum maturities
	(in millions)
October 1, 2021 to December 31, 2021	$	11
2022	23
2023	26
2024	30
2025	26
2026	25
Thereafter	308
Total minimum maturities	$	449
Unamortized financing costs	(11)
Total non-recourse debt	$	438

Schedule of Long-term Debt Instruments

The following are summarized terms of the Senior Unsecured Notes:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Redemption Terms Modification Date
	(in millions)
2024 Notes	$	—	(1)	July 15, 2024	5.25	%	January 15th and July 15th	July 15, 2021
2025 Notes	400			April 15, 2025	6.00	%	April 15 and October 15th	April 15, 2022 (2)
2026 Notes	1,000			June 15, 2026	3.38	%	June 15 and December 15	March 15, 2026 (2)
2030 Notes	375		(3)	September 15, 2030	3.75	%	February 15th and August 15th	September 15, 2022 (4)

(1)The first $350 million issuance of 2024 Notes was priced at par. We subsequently issued $150 million of the $500 million aggregate principal amount of the 2024 Notes for total proceeds of $157 million ($155 million net of issuance costs) at an effective interest rate of 4.13%. The 2024 Notes were redeemed in June 2021 using a portion of the proceeds from the 2026 Notes. We recognized a loss of $15 million upon redemption for the redemption premium and the acceleration of debt issuance cost and premium amortization which is recorded in interest expense in our income statement.

(2)Prior to this date, we may redeem, at our option, some or all of the 2025 Notes or 2026 Notes for the outstanding principal amount plus the applicable “make-whole” premium as defined in the indenture governing the 2025 Notes or 2026 Notes plus accrued and unpaid interest through the redemption date. In addition, prior to this date, we may redeem up to 40% of the Senior Unsecured Notes using the proceeds of certain equity offerings at a price equal to par plus the coupon percentage of the principal amount thereof, plus accrued but unpaid interest, if any, to, but excluding, the applicable redemption date. On, or subsequent to, this date we may redeem the 2025 Notes or 2026 Notes in whole or in part at redemption prices defined in the indenture governing the 2025 Notes or 2026 Notes, plus accrued and unpaid interest though the redemption date.

(3)We issued the $375 million aggregate principal amount of the 2030 Notes for total proceeds of $371 million ($367 million net of issuance costs) at an effective interest rate of 3.87%.

(4)Prior to this date, we may, at our option on one or more occasions redeem up to 40% of the 2030 Notes using the proceeds of certain equity offerings at a price equal to 103.75% of the principal amount thereof; plus accrued but unpaid interest, if any, to, but excluding the applicable redemption date. At any point prior to maturity, we may redeem, at our option, some or all of the 2030 Notes plus the applicable “make-whole” premium as defined in the indenture governing the 2030 Notes plus accrued and unpaid interest through the redemption date.

The following table presents a summary of the components of the Senior Unsecured Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	1,775	$	1,275
Accrued interest	21		22
Unamortized premium (discount)	(3)		2
Less: Unamortized financing costs	(22)		(16)
Carrying value of Senior Unsecured Notes	$	1,771	$	1,283

The following are summarized terms of the Convertible Senior Notes as of September 30, 2021:

	Outstanding Principal Amount			Maturity Date	Stated Interest Rate		Interest Payment Dates	Conversion Ratio	Conversion Price	Issuable Shares	Dividend Threshold Amount (1)
	(in millions)									(in millions)
2022 Convertible Senior Notes	$	14	(2)	September 1, 2022	4.125	%	March 1 and September 1	36.8088	$27.17	0.5	$0.33
2023 Convertible Senior Notes	144			August 15, 2023	0.000	%	N/A	20.6853	$48.34	3.0	$0.34

(1)The conversion ratio is subject to adjustment for dividends declared above these amounts per share per quarter and certain other events that may be dilutive to the holder.

(2)During the quarter ended September 30, 2021, $136 million in principal amount of 2022 Convertible Senior Notes were converted into 5 million shares of common stock.

Schedule of Components of Notes

The following table presents a summary of the components of the Convertible Senior Notes:

	September 30, 2021		December 31, 2020
	(in millions)
Principal	$	158	$	294
Accrued interest	—		2
Less: Unamortized financing costs	(3)		(5)
Carrying value of Convertible Senior Notes	$	155	$	291

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Equity (Tables)

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Schedule of Dividends Declared by Board of Directors

Our board of directors declared the following dividends in 2020 and 2021:

Announced Date	Record Date		Pay Date	Amount per share
2/20/2020	4/2/2020		4/10/2020	$	0.34
6/5/2020	7/2/2020		7/9/2020	0.34
8/6/2020	10/2/2020		10/9/2020	0.34
11/5/2020	12/28/2020	(1)	01/8/2021	0.34
2/18/2021	04/5/2021		04/12/2021	0.35
5/4/2021	7/2/2021		7/9/2021	0.35
8/5/2021	10/1/2021		10/8/2021	0.35

(1) This dividend was treated as a distribution in 2021 for tax purposes.

Schedule of Common Stock Public Offerings and ATM

We completed the following public offerings (including ATM issuances) of our common stock during 2021 and 2020:

Date/Period	Common Stock Offerings	Shares Issued	Price Per Share (2)		Net Proceeds (1)
		(amounts in millions, except per share amounts)
Q1 2020	ATM	4.500	$	25.84	$	115
Q2 2020	ATM	1.938	23.10		44
Q3 2020	ATM	0.875	33.81		29
Q4 2020	ATM	2.204	50.35		110
Q1 2021	ATM	1.639	63.55		103
Q2 2021	None	—	—		—
Q3 2021	ATM	0.857	57.56		49

(1)Net proceeds from the offerings are shown after deducting underwriting discounts, commissions and other offering costs.

(2)Represents the average price per share at which investors in our ATM offerings purchased our shares.

Schedule of Unvested Shares

A summary of the unvested shares of restricted common stock that have been issued is as follows:

	Restricted Shares of Common Stock	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	750,242	$	20.08	$	15.1
Granted	194,077	32.93		6.4
Vested	(576,880)	19.50		(11.3)
Forfeited	(262)	28.59		—
Ending Balance — December 31, 2020	367,177	$	27.77	$	10.2
Granted	80,886	59.41		4.8
Vested	(250,758)	29.22		(7.3)
Forfeited	(50)	63.59		—
Ending Balance — September 30, 2021	197,255	$	38.89	$	7.7

A summary of the unvested shares of restricted stock units that have market-based vesting conditions that have been issued is as follows:

	Restricted Stock Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	435,578	$	20.12	$	8.8
Granted	23,342	27.18		0.6
Incremental performance shares granted	216,932	18.99		4.1
Vested	(439,986)	19.04		(8.4)
Forfeited	(266)	25.90		—
Ending Balance — December 31, 2020	235,600	$	21.78	$	5.1
Granted	17,426	71.23		1.2
Incremental performance shares granted	171,180	20.24		3.5
Vested	(342,360)	20.24		(6.9)
Forfeited	—	—		—
Ending Balance — September 30, 2021	81,846	$	35.52	$	2.9

(1)    As discussed in Note 2 to our financial statements in this Form 10-Q, restricted stock units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers. The incremental performance shares granted relate to the vesting of an award at the 200% level.

A summary of the unvested LTIP Units that have time-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	201,310	$	25.84	$	5.2
Granted	165,346	18.56		3.1
Vested	(80,974)	25.87		(2.1)
Forfeited	—	—		—
Ending Balance — December 31, 2020	285,682	$	21.62	$	6.2
Granted	249,573	54.73		13.7
Vested	(151,209)	21.58		(3.3)
Forfeited	—	—		—
Ending Balance — September 30, 2021	384,046	$	43.15	$	16.6

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units.

A summary of the unvested LTIP Units that have market-based vesting conditions that have been issued is as follows:

	LTIP Units (1)	Weighted Average Grant Date Fair Value		Value
		(per share)		(in millions)
Ending Balance — December 31, 2019	180,500	$	26.70	$	4.8
Granted	132,204	12.25		1.6
Vested	—	—		—
Forfeited	—	—		—
Ending Balance — December 31, 2020	312,704	$	20.59	$	6.4
Granted	86,274	65.28		5.6
Incremental performance shares granted	51,500	21.09		1.1
Vested	(103,000)	21.09		(2.1)
Forfeited	—	—		—
Ending Balance — September 30, 2021	347,478	$	31.61	$	11.0

(1)    See Note 4 to our financial statements in this Form 10-Q for information on the vesting of LTIP Units. LTIP Units with market-based vesting conditions can vest between 0% and 200% subject to both the absolute performance of the Company's common stock as well as relative performance compared to a group of peers.

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Earnings per Share of Common Stock (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Common Share of Common Stock

The computation of basic and diluted earnings per common share of common stock is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Numerator:	(in millions, except share and per share data)
Net income (loss) attributable to controlling stockholders and participating securities	$	(2.8)	$	21.2	$	64.2	$	57.5
Less: Dividends and distributions on participating securities	(0.2)		(0.2)		(0.7)		(0.7)
Less: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — basic	(3.0)		21.0		63.5		56.8
Add: Interest expense related to convertible notes under the if-converted method	—		0.1		1.0		0.1
Add: Undistributed earnings attributable to participating securities	—		—		—		—
Net income (loss) attributable to controlling stockholders — dilutive	$	(3.0)	$	21.1	$	64.5	$	56.9
Denominator:
Weighted-average number of common shares — basic	79,335,173		74,012,788		78,407,028		71,376,004
Weighted-average number of common shares — diluted	79,335,173		76,131,252		82,069,464		72,644,626
Basic earnings per common share	$	(0.04)	$	0.28	$	0.81	$	0.80
Diluted earnings per common share	$	(0.04)	$	0.28	$	0.79	$	0.78
Securities being allocated a portion of earnings:
Weighted-average number of OP units	559,686		321,261		459,848		301,582
	As of September 30, 2021		As of September 30, 2020
Participating securities:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions outstanding at period end	581,301		653,071
Potentially dilutive securities as of period end:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions	581,301		653,071
Restricted stock units	81,846		235,866
LTIP Units with market-based vesting conditions	347,478		312,704
Potential shares of common stock related to convertible notes	3,494,175		8,485,630

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Equity Method Investments (Tables)

9 Months Ended

Sep. 30, 2021

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Method Investments

As of September 30, 2021, we held the following equity method investments:

Investment Date	Investee	Carrying Value
		(in millions)
Various	Jupiter Equity Holdings LLC	$	540
Various	Lighthouse Partnerships (1)	211
March 2020	University of Iowa Energy Collaborative Holdings LLC	121
Various	Phase V Class A LLC	109
Various	Other investees	487
	Total equity method investments	$	1,468

(1)     Represents the total of three equity investments in a portfolio of renewable assets.

The following is a summary of the consolidated financial position and results of operations of the significant entities accounted for using the equity method.

	SunStrong Capital Holdings LLC		Rosie Target Co, LLC (1)		Lighthouse Renewable HoldCo LLC (1)		Summit Ridge Capital Holdings, LLC		Vivint Solar Asset 3 Holdco Parent LLC		Other Investments (2)		Total
	(in millions)
Balance Sheet
As of June 30, 2021
Current assets	$	87	$	11	$	11	$	51	$	60	$	636	$	856
Total assets	1,624		282		482		407		441		7,900		11,136
Current liabilities	63		5		41		58		8		587		762
Total liabilities	1,282		101		130		357		353		2,586		4,809
Members' equity	342		181		352		50		88		5,314		6,327
As of December 31, 2020
Current assets	92		25		22		18		86		539		782
Total assets	1,532		299		497		268		303		7,340		10,239
Current liabilities	48		19		22		43		3		518		653
Total liabilities	1,217		118		87		243		139		2,298		4,102
Members' equity	315		181		410		25		164		5,042		6,137
Income Statement
For the six months ended June 30, 2021
Revenue	67		6		(71)		6		11		4		23
Income (loss) from continuing operations	2		(3)		(88)		(5)		4		(283)		(373)
Net income (loss)	2		(3)		(88)		(5)		4		(283)		(373)
For the six months ended June 30, 2020
Revenue	61		—		—		1		—		118		180
Income (loss) from continuing operations	(4)		—		—		(2)		—		(1)		(7)
Net income (loss)	(4)		—		—		(2)		—		(1)		(7)

(1)     Component of the Lighthouse Partnerships described in Note 6 to our financial statements in this Form 10-Q.

(2)     Represents aggregated financial statement information for investments not separately presented.

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Summary of Significant Accounting Policies - Government and Commercial Receivables (Details)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Financing receivable, non-accrual period	90 days
Reasonable forecast period	2 years

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Summary of Significant Accounting Policies - Equity-Based Compensation (Details) - 2013 Plan - Restricted stock units	9 Months Ended
	Sep. 30, 2021
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance target rate	0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance target rate	200.00%

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Summary of Significant Accounting Policies - Segment Reporting (Details)	9 Months Ended
	Sep. 30, 2021 segment
Accounting Policies [Abstract]
Number of segment reported	1

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Fair Value Measurements - Summary of Fair Value and Carrying Value of Financial Assets and Liabilities (Details - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Investments	$ 17,637	$ 55,377
Level 3
Liabilities
Amortized cost of investments	17,000	51,000
Amortized cost of securitization assets	184,000	141,000
Fair Value | Level 3
Assets
Investments	18,000	55,000
Securitization residual assets	198,000	159,000
Liabilities
Credit facilities	25,000	23,000
Non-recourse debt	487,000	678,000
Fair Value | Level 3 | Government receivables
Assets
Receivables	139,000	282,000
Fair Value | Level 3 | Commercial receivables
Assets
Receivables	1,397,000	1,018,000
Fair Value | Level 2
Liabilities
Senior unsecured notes	1,838,000	1,362,000
Convertible notes	203,000	552,000
Carrying Value | Level 3
Assets
Investments	18,000	55,000
Securitization residual assets	198,000	159,000
Liabilities
Credit facilities	25,000	23,000
Non-recourse debt	449,000	605,000
Carrying Value | Level 3 | Government receivables
Assets
Receivables	126,000	248,000
Carrying Value | Level 3 | Commercial receivables
Assets
Receivables	1,225,000	965,000
Carrying Value | Level 2
Liabilities
Senior unsecured notes	1,793,000	1,299,000
Convertible notes	$ 158,000	$ 296,000

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Fair Value Measurements - Schedule of Level 3 Investments at Fair Value (Details) - Level 3 - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 18	$ 46	$ 55	$ 75
Purchases of investments	0	5	5	23
Principal payments on investments	0	0	0	(2)
Sale of investments	0	0	(38)	(53)
Realized gains on investments recorded in gain on sale of receivables and investments	0	0	0	5
Unrealized gains (losses) on investments recorded in OCI	0	1	(4)	4
Balance, end of period	18	52	18	52
Securitization residual assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	188	135	159	122
Accretion of securitization residual assets	2	2	6	4
Purchases of investments	11	9	45	36
Principal payments on investments	(2)	(4)	(8)	(9)
Sale of investments	0	0	0	(21)
Unrealized gains (losses) on investments recorded in OCI	(1)	0	(4)	10
Balance, end of period	$ 198	$ 142	$ 198	$ 142

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Fair Value Measurements - Schedule of Investments in Unrealized Loss Position (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Estimated Fair Value
Securities with a loss shorter than 12 months	$ 7.0	$ 0.0
Securities with a loss longer than 12 months	0.0	6.0
Unrealized Losses
Securities with a loss shorter than 12 months	0.2	0.0
Securities with a loss longer than 12 months	$ 0.0	$ 0.3

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Fair Value Measurements - Additional Information (Details) - Level 3	Sep. 30, 2021	Dec. 31, 2020
Risk free interest rate | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input	0.01
Risk free interest rate | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input		0.04
Weighted average discount rate
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input	0.036	0.032
Securitization residual assets | Risk free interest rate | Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input	0.01
Securitization residual assets | Risk free interest rate | Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input		0.04
Securitization residual assets | Weighted average discount rate
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments, measurement input	0.043	0.038

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Fair Value Measurements - Schedule of Cash Deposits Subject to Credit Risk (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Cash deposits	$ 413,259	$ 286,250
Restricted cash deposits (included in other assets)	26,000	24,000
Total cash deposits	439,000	310,000
Amount of cash deposits in excess of amounts federally insured	$ 437,000	$ 309,000

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Non-Controlling Interest (Details) - shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Noncontrolling Interest [Abstract]
Outstanding OP units held by outside limited partners (percent, less than)	1.00%
Exchange of operating partnership units to common stock (in shares)	0	57,400

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Securitization of Financial Assets - Summary of Certain Transactions with Securitization Trusts (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Gains on securitizations	$ 37,521	$ 36,866
Securitization trust
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Gains on securitizations	55,000	34,000
Cost of financial assets securitized	665,000	173,000
Proceeds from securitizations	720,000	207,000
Cash received from residual and servicing assets	9,000	9,000
Securitization trust | Residual assets
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Residual and servicing assets	$ 204,000	$ 147,000

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Securitization of Financial Assets - Additional Information (Details)	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Annual servicing fees (up to)	0.20%
Managed assets	$ 8,200,000,000		$ 7,200,000,000
Securitization credit losses	0	$ 0
Securitization assets	203,625,000		164,342,000
Greater than 90 days past due
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Securitization assets	0
Asset-backed securities, securitized loans and receivables
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Managed receivables	5,000,000,000		$ 4,300,000,000
Residual assets | Securitization trust
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Receivable from contracts	$ 109,000,000
Discount rate | Minimum
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Discount rates to determine fair market value of underlying assets	0.02
Discount rate | Maximum
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Discount rates to determine fair market value of underlying assets	0.08

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Our Portfolio - Additional Information (Details)		1 Months Ended		3 Months Ended			9 Months Ended
	Jul. 01, 2020 project MW	Jul. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) committee_member project GW	Sep. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity method investments, receivables, real estate and investments				$ 3,194,000,000			$ 3,194,000,000
Allowance for loss on receivables			$ 36,000,000	39,000,000			39,000,000
Financing receivables on non-accrual status			0	0			0
Allowance on investment			0	0			0
Equity method investments			$ 1,279,651,000	1,468,282,000			1,468,282,000
Jupiter Equity Holdings LLC
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Portfolio of renewable energy projects, power | MW	2.3
Investment, limited partnership, expected total contribution				540,000,000			540,000,000
Project, weighted average contract life	13 years
Distribution percent	49.00%
Review committee | committee_member			4
Distribution from partnership, upon achievement of certain targets, percent	33.00%
Equity method investments				540,000,000			540,000,000
Jupiter Equity Holdings LLC | Company
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Review committee | committee_member			2
Jupiter Equity Holdings LLC | Sponsor
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Review committee | committee_member			2
Jupiter Equity Holdings LLC | Sponsor
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Distribution from partnership, upon achievement of certain targets, percent	67.00%
Jupiter Equity Holdings LLC | Class A units | Jupiter Equity Holdings LLC
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ownership percent	100.00%
Jupiter Equity Holdings LLC | Onshore wind projects
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of projects owned | project	9
Jupiter Equity Holdings LLC | Solar projects
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of projects owned | project	4
The Lighthouse Partnerships
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Portfolio of renewable energy projects, power | GW			1.6
Project, weighted average contract life			14 years
Review committee | committee_member			4
Capital contribution to partnership			$ 663,000,000
Number of partnerships | project			3
Investment, limited partnership, preferred cash equity interests				219,000,000			219,000,000
Equity contributions					$ 15,000,000
Member loans					$ 10,000,000
The Lighthouse Partnerships | Company
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Review committee | committee_member			2
The Lighthouse Partnerships | Sponsor
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Review committee | committee_member			2
Equity investment converted to loan
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity method investments		$ 24,000,000
Portfolio loan		17,000,000
Gain (loss) from equity method investments		$ 7,000,000
Performance Rating 3
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loss on receivables				8,000,000			8,000,000
Commercial receivables
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loss on receivables			$ 36,000,000	39,000,000		$ 31,000,000	39,000,000	$ 31,000,000	$ 37,000,000	$ 29,000,000	$ 26,000,000
Provision for loss on receivables				2,000,000		$ 2,000,000	3,000,000	$ 5,000,000
Commercial receivables | Performance Rating 3
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity method investments, receivables, real estate and investments				0			0
Allowance for loss on receivables				8,000,000			8,000,000
Financing receivables on non-accrual status				8,000,000			8,000,000
Equity method investments				$ 0			$ 0

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Our Portfolio - Schedule Of Receivables (Details)	9 Months Ended
	Sep. 30, 2021 USD ($) transaction receivable	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Financing Receivable, Nonaccrual [Line Items]
2021	$ 203,000,000
2020	190,000,000
2019	489,000,000
2018	260,000,000
2017	40,000,000
2016	73,000,000
Prior to 2016	135,000,000
Total receivables	1,390,000,000		$ 1,250,000,000
Less: Allowance for loss on receivables	(39,000,000)		(36,000,000)
Net receivables	1,351,000,000
Receivables held-for-sale	0
Investments	17,637,000		55,377,000
Real estate	357,000,000
Equity method investments	1,468,282,000		1,279,651,000
Total	3,194,000,000
Average remaining balance	12,000,000
Financing receivables on non-accrual status	$ 0		0
Number of transactions | transaction	152
Finance receivable outstanding balance (less than)	$ 1,000,000
Finance receivable aggregate remaining amount	$ 72,000,000
Credit concentration risk | Percent of Portfolio
Financing Receivable, Nonaccrual [Line Items]
Percent of Portfolio	100.00%
3
Financing Receivable, Nonaccrual [Line Items]
Less: Allowance for loss on receivables	$ (8,000,000)
Government receivables
Financing Receivable, Nonaccrual [Line Items]
Total receivables	126,000,000		248,000,000
Less: Allowance for loss on receivables	0	$ 0	0	$ 0	$ 0	$ 0
Net receivables	126,412,000		248,455,000
Government receivables | 1
Financing Receivable, Nonaccrual [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	31,000,000
2016	14,000,000
Prior to 2016	81,000,000
Total receivables	126,000,000
Less: Allowance for loss on receivables	0
Net receivables	126,000,000
Receivables held-for-sale	0
Investments	11,000,000
Real estate	0
Equity method investments	0
Total	137,000,000
Average remaining balance	$ 6,000,000
Government receivables | 1 | Credit concentration risk | Percent of Portfolio
Financing Receivable, Nonaccrual [Line Items]
Percent of Portfolio	4.00%
Commercial receivables
Financing Receivable, Nonaccrual [Line Items]
Total receivables	$ 1,264,000,000		1,002,000,000
Less: Allowance for loss on receivables	(39,000,000)	$ (37,000,000)	(36,000,000)	$ (31,000,000)	$ (29,000,000)	$ (26,000,000)
Net receivables	1,224,741,000		$ 965,452,000
Commercial receivables | 1
Financing Receivable, Nonaccrual [Line Items]
2021	203,000,000
2020	190,000,000
2019	483,000,000
2018	260,000,000
2017	1,000,000
2016	59,000,000
Prior to 2016	46,000,000
Total receivables	1,242,000,000
Less: Allowance for loss on receivables	(26,000,000)
Net receivables	1,216,000,000
Receivables held-for-sale	0
Investments	7,000,000
Real estate	357,000,000
Equity method investments	1,442,000,000
Total	3,022,000,000
Average remaining balance	$ 13,000,000
Commercial receivables | 1 | Credit concentration risk | Percent of Portfolio
Financing Receivable, Nonaccrual [Line Items]
Percent of Portfolio	95.00%
Commercial receivables | 2
Financing Receivable, Nonaccrual [Line Items]
2021	$ 0
2020	0
2019	6,000,000
2018	0
2017	8,000,000
2016	0
Prior to 2016	0
Total receivables	14,000,000
Less: Allowance for loss on receivables	(5,000,000)
Net receivables	9,000,000
Receivables held-for-sale	0
Investments	0
Real estate	0
Equity method investments	26,000,000
Total	35,000,000
Average remaining balance	$ 10,000,000
Commercial receivables | 2 | Credit concentration risk | Percent of Portfolio
Financing Receivable, Nonaccrual [Line Items]
Percent of Portfolio	1.00%
Commercial receivables | 3
Financing Receivable, Nonaccrual [Line Items]
2021	$ 0
2020	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	8,000,000
Total receivables	8,000,000
Less: Allowance for loss on receivables	(8,000,000)
Net receivables	0
Receivables held-for-sale	0
Investments	0
Real estate	0
Equity method investments	0
Total	0
Average remaining balance	$ 4,000,000
Number of contracts | receivable	2
Financing receivables on non-accrual status	$ 8,000,000
Commercial receivables | 3 | Wind project
Financing Receivable, Nonaccrual [Line Items]
Equity method investments	$ 0
Commercial receivables | 3 | Credit concentration risk | Percent of Portfolio
Financing Receivable, Nonaccrual [Line Items]
Percent of Portfolio	0.00%
Residential solar loan
Financing Receivable, Nonaccrual [Line Items]
Net receivables	$ 742,000,000

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Our Portfolio - Summary of the Carrying Value and Allowance by Type of Receivable or "Portfolio Segment" (Details) - USD ($)	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	$ 1,390,000,000		$ 1,250,000,000
Loan Funding Commitments	290,000,000		282,000,000
Allowance	39,000,000		36,000,000
Loans	1,351,000,000
Equity method investments, receivables, real estate and investments	3,194,000,000
Financing receivables on non-accrual status	0		0
3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance	8,000,000
Special purpose subsidiaries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncontrolling equity investments	76,000,000
Government
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	126,000,000		248,000,000
Loan Funding Commitments	0		0
Allowance	0	$ 0	0	$ 0	$ 0	$ 0
Loans	126,412,000		248,455,000
Government | 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	126,000,000
Allowance	0
Loans	126,000,000
Equity method investments, receivables, real estate and investments	137,000,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	1,264,000,000		1,002,000,000
Loan Funding Commitments	290,000,000		282,000,000
Allowance	39,000,000	$ 37,000,000	36,000,000	$ 31,000,000	$ 29,000,000	$ 26,000,000
Loans	1,224,741,000		$ 965,452,000
Commercial | 2
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	14,000,000
Allowance	5,000,000
Loans	9,000,000
Equity method investments, receivables, real estate and investments	35,000,000
Commercial | 3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	8,000,000
Allowance	8,000,000
Loans	0
Equity method investments, receivables, real estate and investments	0
Financing receivables on non-accrual status	8,000,000
Commercial | 1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Carrying Value	1,242,000,000
Allowance	26,000,000
Loans	1,216,000,000
Equity method investments, receivables, real estate and investments	3,022,000,000
Commercial | Special purpose subsidiaries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	647,000,000
U.S. federal government
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	28,000,000
State or local governments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	98,000,000
Residential solar loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	742,000,000
Leasing arrangement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Equity method investments, receivables, real estate and investments	$ 47,000,000

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Our Portfolio - Allowance Roll Forward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jan. 01, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			$ 36
Ending balance	$ 39		39
Allowance for loss on receivables	39		39
Performance Rating 3
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance	8		8
Allowance for loss on receivables	8		8
Cumulative effect adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loss on receivables					$ 17
Government receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	$ 0	0	$ 0
Provision for loss on receivables	0	0	0	0
Ending balance	0	0	0	0
Allowance for loss on receivables	0	0	0	0
Commercial receivables
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	37	29	36	26
Provision for loss on receivables	2	2	3	5
Ending balance	39	31	39	31
Allowance for loss on receivables	39	$ 31	39	$ 31
Commercial receivables | Performance Rating 3
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance	8		8
Allowance for loss on receivables	$ 8		$ 8

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Our Portfolio - Summary of Anticipated Maturity Dates of Financing Receivables and Investments and Weighted Average Yield (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Maturities by period (excluding allowance)
Total	$ 1,390
Less than 1 year	67
1-5 years	56
5-10 years	482
More than 10 years	$ 785
Weighted average yield by period
Total	8.20%
Less than 1 year	7.60%
1-5 years	6.30%
5-10 years	8.40%
More than 10 years	8.30%
Maturities by period
Total	$ 18
Less than 1 year	0
1-5 years	0
5-10 years	0
More than 10 years	$ 18
Weighted average yield by period
Total	4.10%
Less than 1 year	0.00%
1-5 years	0.00%
5-10 years	0.00%
More than 10 years	4.10%

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Our Portfolio - Components of Real Estate Portfolio (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Real Estate Properties [Line Items]
Accumulated amortization of lease intangibles	$ (16)	$ (14)
Real estate	357	359
Land
Real Estate Properties [Line Items]
Real estate	269	269
Lease intangibles
Real Estate Properties [Line Items]
Real estate	$ 104	$ 104

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Our Portfolio - Schedule of Future Amortization Expenses Related to Intangible Assets and Future Minimum Rental Income Payments under Land Lease Agreements (Details) $ in Millions	Sep. 30, 2021 USD ($)
Future Amortization Expense
From October 1, 2021 to December 31, 2021	$ 1
2022	3
2023	3
2024	3
2025	3
2026	3
Thereafter	72
Total	88
Minimum Rental Income Payments
From October 1, 2021 to December 31, 2021	5
2022	22
2023	23
2024	24
2025	24
2026	24
Thereafter	717
Total	$ 839

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Our Portfolio - Equity Method Investments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) equity_investment	Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 1,468,282	$ 1,279,651
Jupiter Equity Holdings LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	540,000
Lighthouse Partnerships
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 211,000
Number of partnership interests | equity_investment	3
University of Iowa Energy Collaborative Holdings LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 121,000
Phase V Class A LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	109,000
Other investees
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 487,000

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Credit facilities and commercial paper notes - Senior Credit Facilities (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Apr. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2021 USD ($) facility	Feb. 28, 2021 USD ($)	Dec. 31, 2020 USD ($)
Line of Credit Facility [Line Items]
Unamortized debt issuance costs			$ 11,000,000		$ 12,000,000
Credit Facilities
Line of Credit Facility [Line Items]
Number of revolving credit facilities | facility			2
Unamortized issuance costs			$ 2,000,000
Default underlying financings (more than)			50.00%
Credit Facilities | LIBOR
Line of Credit Facility [Line Items]
Default interest rate (in percent)			2.00%
Credit Facilities | Rep-Based Facility
Line of Credit Facility [Line Items]
Principal amount		$ 100,000,000		$ 250,000,000
Loss on modification		$ 1,500,000
Availability fee percentage			0.60%
Credit Facilities | Rep-Based Facility | U.S. federal government
Line of Credit Facility [Line Items]
Applicable valuation percentages			85.00%
Credit Facilities | Rep-Based Facility | Institutional
Line of Credit Facility [Line Items]
Applicable valuation percentages			80.00%
Credit Facilities | Rep-Based Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)			1.40%
Fixed interest rate (in percent)			1.85%
Credit Facilities | Rep-Based Facility | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)			0.40%
Fixed interest rate (in percent)			0.85%
Credit Facilities | Approval-Based Facility
Line of Credit Facility [Line Items]
Principal amount			$ 200,000,000
Credit Facilities | Approval-Based Facility | Certain approved existing financing
Line of Credit Facility [Line Items]
Applicable valuation percentages			85.00%
Credit Facilities | Approval-Based Facility | Others as prescribed by administrative agent
Line of Credit Facility [Line Items]
Applicable valuation percentages			67.00%
Credit Facilities | Approval-Based Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)			1.50%
Fixed interest rate (in percent)			2.00%
Credit Facilities | Approval-Based Facility | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)			0.50%
Fixed interest rate (in percent)			1.00%
Credit Facilities | Unsecured Revolver
Line of Credit Facility [Line Items]
Principal amount	$ 400,000,000			$ 50,000,000
Fixed interest rate (in percent)			2.325%
Outstanding credit facility			$ 25,000,000
Unamortized debt issuance costs			$ 1,000,000
Term loan fee (in percent)	2.25%
Long-term Debt, Term	364 days
Credit Facilities | Unsecured Revolver | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)	2.25%
Variable rate, maximum downward adjustment (in percent)	0.05%
Credit Facilities | Unsecured Revolver | Prime Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (in percent)	1.25%

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Credit facilities and commercial paper notes - Schedule of Credit Facilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Outstanding balance	$ 25,483	$ 22,591
Credit Facilities | Rep-Based Facility
Line of Credit Facility [Line Items]
Outstanding balance	0
Value of collateral pledged to credit facility	24,000
Available capacity based on pledged assets	11,000
Credit Facilities | Approval-Based Facility
Line of Credit Facility [Line Items]
Outstanding balance	0
Value of collateral pledged to credit facility	89,000
Available capacity based on pledged assets	$ 64,000

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Credit facilities and commercial paper notes - Green Commercial Paper Note Program (Details)	1 Months Ended
	Sep. 30, 2021 USD ($)
Commercial Paper
Debt Instrument [Line Items]
Principal amount	$ 100,000,000
Credit facility remaining no of days	397 days
Broker fee percent	0.0010
Unamortized financing costs	$ 1,000,000
Letter of Credit
Debt Instrument [Line Items]
Principal amount	$ 100,000,000
Percentage of drawn letter of credit	0.0095
Unused letter of credit capacity percentage	0.40%
Reduced percentage of letter of credit Fee	0.0005

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Long-term Debt - Schedule of Outstanding Non-Recourse Asset-Backed Debt and Bank Loans (Details) - USD ($) $ in Millions	1 Months Ended
	Mar. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Financial Instruments Owned and Pledged as Collateral [Line Items]
Unamortized financing costs		$ (11)	$ (12)
Total non-recourse debt		438	593
Loss on sale of assets	$ 3
Collateral pledged
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash		25	23
Asset-backed non-recourse debt
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral pledged against our nonrecourse debt		574	723
Asset-backed non-recourse debt | HASI Sustainable Yield Bond 2015-1A
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 78	81
Interest rate		4.28%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, receivables		133	134
Asset-backed non-recourse debt | HASI Sustainable Yield Bond 2015-1B Note
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 0	13
Interest rate		5.41%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, other		133	134
Asset-backed non-recourse debt | HASI SYB Trust 2016-2
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 66	67
Interest rate		4.35%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, receivables		66	71
Asset-backed non-recourse debt | HASI ECON 101 Trust
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 0	126
Interest rate		3.57%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, receivables		0	133
Asset-backed non-recourse debt | HASI SYB Trust 2017-1
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 147	150
Interest rate		3.86%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, receivables		203	205
Asset-backed non-recourse debt | Lannie Mae Series 2019-01
Financial Instruments Owned and Pledged as Collateral [Line Items]
Carrying value of Convertible Senior Notes		$ 93	95
Interest rate		3.68%
Anticipated Balance at Maturity		$ 0
Carrying value of assets pledged, receivables		107	107
Other non-recourse debt
Financial Instruments Owned and Pledged as Collateral [Line Items]
Other non-recourse debt		65	73
Anticipated Balance at Maturity		18
Carrying value of assets pledged, receivables		$ 65	$ 73
Other non-recourse debt | Minimum
Financial Instruments Owned and Pledged as Collateral [Line Items]
Interest rate		3.15%
Other non-recourse debt | Maximum
Financial Instruments Owned and Pledged as Collateral [Line Items]
Interest rate		7.45%

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Long-term Debt - Schedule of Minimum Maturities of Non-recourse Debt (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Future minimum maturities
Unamortized financing costs	$ (11)	$ (12)
Total non-recourse debt	438	$ 593
Non-recourse debt
Future minimum maturities
October 1, 2021 to December 31, 2021	11
2022	23
2023	26
2024	30
2025	26
2026	25
Thereafter	308
Carrying value of Convertible Senior Notes	449
Unamortized financing costs	(11)
Total non-recourse debt	$ 438

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Long-term Debt - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Interest expense		$ 27,349,000	$ 26,085,000	$ 95,394,000	$ 65,884,000
Senior Unsecured Notes
Debt Instrument [Line Items]
Principal		$ 1,775,000,000		$ 1,775,000,000		$ 1,275,000,000
Maximum unencumbered assets percentage of unsecured debt		120.00%		120.00%
Interest expense		$ 19,000,000	14,000,000	$ 53,000,000	33,000,000
Senior Unsecured Notes | 2026 Notes
Debt Instrument [Line Items]
Principal		1,000,000,000		1,000,000,000
Redemption price, percentage	40.00%
Convertible Senior Notes
Debt Instrument [Line Items]
Principal		158,000,000		158,000,000
Interest expense		2,000,000	$ 2,000,000	6,000,000	$ 6,000,000
Convertible Senior Notes | 2023 Convertible Senior Notes
Debt Instrument [Line Items]
Principal		144,000,000		$ 144,000,000
Redemption price, percentage				100.00%
Convertible Senior Notes | 2022 Convertible Senior Notes
Debt Instrument [Line Items]
Principal		$ 14,000,000		$ 14,000,000
Redemption price, percentage				100.00%

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Long-term Debt - Summarized Terms of the Senior Unsecured Notes (Details) - USD ($)	1 Months Ended	9 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Loss on debt extinguishment		$ 14,584,000	$ 0
Senior Unsecured Notes
Debt Instrument [Line Items]
Principal		1,775,000,000		$ 1,275,000,000
Senior Unsecured Notes | 2024 Notes
Debt Instrument [Line Items]
Principal	$ 500,000,000	$ 0
Stated Interest Rate		5.25%
Proceeds from issuance of debt	157,000,000
Proceeds from issuance of debt net of issuance cost	$ 155,000,000
Effective interest rate	4.13%
Loss on debt extinguishment	$ 15,000,000
Senior Unsecured Notes | 2024 notes issued at par
Debt Instrument [Line Items]
Principal	350,000,000
Senior Unsecured Notes | 2024 notes note issued above par
Debt Instrument [Line Items]
Principal	$ 150,000,000
Senior Unsecured Notes | 2025 Notes
Debt Instrument [Line Items]
Principal		$ 400,000,000
Stated Interest Rate		6.00%
Redemption price, percentage	40.00%
Senior Unsecured Notes | 2026 Notes
Debt Instrument [Line Items]
Principal		$ 1,000,000,000
Stated Interest Rate		3.38%
Redemption price, percentage	40.00%
Senior Unsecured Notes | 2030 Notes
Debt Instrument [Line Items]
Principal	$ 375,000,000	$ 375,000,000
Stated Interest Rate		3.75%
Proceeds from issuance of debt	371,000,000
Proceeds from issuance of debt net of issuance cost	$ 367,000,000
Effective interest rate	3.87%
Redemption price, percentage	40.00%
Offer share percentage	103.75%

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Long-term Debt - Summary of Components of Senior Notes (Details) - Senior Unsecured Notes - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal	$ 1,775	$ 1,275
Accrued interest	21	22
Unamortized premium (discount)	(3)	2
Less: Unamortized financing costs	(22)	(16)
Carrying value of Convertible Senior Notes	$ 1,771	$ 1,283

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Long-term Debt - Summarized Terms of the Convertible Senior Notes (Details) $ / shares in Units, shares in Millions, equity_instrument in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) equity_instrument $ / shares	Sep. 30, 2020 USD ($)
Debt Instrument [Line Items]
Principal amount		$ 135,800,000	$ 0
2022 Convertible Senior Notes
Debt Instrument [Line Items]
Principal amount	$ 136,000,000
Common stock (in shares) | shares	5
Convertible Senior Notes
Debt Instrument [Line Items]
Outstanding Principal Amount	$ 158,000,000	158,000,000
Convertible Senior Notes | 2022 Convertible Senior Notes
Debt Instrument [Line Items]
Outstanding Principal Amount	$ 14,000,000	$ 14,000,000
Stated Interest Rate	4.125%	4.125%
Conversion Ratio		36.8088
Conversion Price (in usd per share) | $ / shares	$ 27.17	$ 27.17
Issuable Shares | equity_instrument		0.5
Dividend Threshold Amount (in usd per share) | $ / shares	$ 0.33	$ 0.33
Convertible Senior Notes | 2023 Convertible Senior Notes
Debt Instrument [Line Items]
Outstanding Principal Amount	$ 144,000,000	$ 144,000,000
Stated Interest Rate	0.00%	0.00%
Conversion Ratio		20.6853
Conversion Price (in usd per share) | $ / shares	$ 48.34	$ 48.34
Issuable Shares | equity_instrument		3.0
Dividend Threshold Amount (in usd per share) | $ / shares	$ 0.34	$ 0.34

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Long-term Debt - Summary of Components of Convertible Notes (Details) - Convertible Senior Notes - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal	$ 158,000,000
Convertible Senior Notes
Debt Instrument [Line Items]
Principal	158,000,000	$ 294,000,000
Accrued interest	0	2,000,000
Less: Unamortized financing costs	(3,000,000)	(5,000,000)
Carrying value of Convertible Senior Notes	$ 155,000,000	$ 291,000,000

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Commitments and Contingencies (Details) - Financial guarantee $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) joint_venture
Guarantor Obligations [Line Items]
Number of entities | joint_venture	1
Maximum exposure | $	$ 60
Percent of guarantee obligation payable by other entities	15.00%

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Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax (expense) benefit	$ 1,250	$ (2,345)	$ (11,510)	$ (2,860)
Federal benefit (as a percent)			3.00%	4.00%

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Equity - Summary of Dividends (Details) - $ / shares	Oct. 08, 2021	Aug. 05, 2021	Jul. 09, 2021	May 04, 2021	Apr. 12, 2021	Feb. 18, 2021	Jan. 08, 2021	Nov. 05, 2020	Oct. 09, 2020	Aug. 06, 2020	Jul. 09, 2020	Jun. 05, 2020	Apr. 10, 2020	Feb. 20, 2020
Dividends Payable [Line Items]
Amount per share, declared (in usd per share)		$ 0.35		$ 0.35		$ 0.35		$ 0.34		$ 0.34		$ 0.34		$ 0.34
Amount per share, paid (in usd per share)			$ 0.35		$ 0.35		$ 0.34		$ 0.34		$ 0.34		$ 0.34
Subsequent Event
Dividends Payable [Line Items]
Amount per share, paid (in usd per share)	$ 0.35

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Equity - Schedule of Common Stock Public Offerings and ATM (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended							9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net Proceeds								$ 151,501	$ 188,197
ATM
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued (in shares)	857	0	1,639	2,204	875	1,938	4,500
Price Per Share (in usd per share)	$ 57.56	$ 0	$ 63.55	$ 50.35	$ 33.81	$ 23.10	$ 25.84	$ 57.56	$ 33.81
Net Proceeds	$ 49,000	$ 0	$ 103,000	$ 110,000	$ 29,000	$ 44,000	$ 115,000

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Equity - Additional Information (Details) - 2013 Plan - Restricted stock and restricted stock units - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares awarded (in shares)			434,159
Equity-based compensation expense	$ 4	$ 4	$ 14	$ 12
Accelerated compensation expense			2
Unrecognized compensation expense	$ 19		$ 19
Weighted-average term in which unrecognized compensation expense is expected to be recognized			2 years

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Equity - Summary of Unvested Shares (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Restricted Shares of Common Stock
Shares
Beginning Balance (in shares)	367,177	750,242
Granted (in shares)	80,886	194,077
Vested (in shares)	(250,758)	(576,880)
Forfeited (in shares)	(50)	(262)
Ending Balance (in shares)	197,255	367,177
Weighted Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 27.77	$ 20.08
Granted (in usd per share)	59.41	32.93
Vested (in usd per share)	29.22	19.50
Forfeited (in usd per share)	63.59	28.59
Ending Balance (in usd per share)	$ 38.89	$ 27.77
Value
Beginning Balance	$ 10.2	$ 15.1
Granted	4.8	6.4
Vested	(7.3)	(11.3)
Forfeited	0.0	0.0
Ending Balance	$ 7.7	$ 10.2
Restricted stock units
Shares
Beginning Balance (in shares)	235,600	435,578
Granted (in shares)	17,426	23,342
Vested (in shares)	(342,360)	(439,986)
Forfeited (in shares)	0	(266)
Ending Balance (in shares)	81,846	235,600
Weighted Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 21.78	$ 20.12
Granted (in usd per share)	71.23	27.18
Vested (in usd per share)	20.24	19.04
Forfeited (in usd per share)	0	25.90
Ending Balance (in usd per share)	$ 35.52	$ 21.78
Value
Beginning Balance	$ 5.1	$ 8.8
Granted	1.2	0.6
Vested	(6.9)	(8.4)
Forfeited	0.0	0.0
Ending Balance	$ 2.9	$ 5.1
Restricted stock units | Minimum
Value
Vesting percentage	0.00%
Restricted stock units | Maximum
Value
Vesting percentage	200.00%
Incremental performance shares granted
Shares
Granted (in shares)	171,180	216,932
Weighted Average Grant Date Fair Value
Granted (in usd per share)	$ 20.24	$ 18.99
Value
Granted	$ 3.5	$ 4.1
LTIP time-based vesting units
Shares
Beginning Balance (in shares)	285,682	201,310
Granted (in shares)	249,573	165,346
Vested (in shares)	(151,209)	(80,974)
Forfeited (in shares)	0	0
Ending Balance (in shares)	384,046	285,682
Weighted Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 21.62	$ 25.84
Granted (in usd per share)	54.73	18.56
Vested (in usd per share)	21.58	25.87
Forfeited (in usd per share)	0	0
Ending Balance (in usd per share)	$ 43.15	$ 21.62
Value
Beginning Balance	$ 6.2	$ 5.2
Granted	13.7	3.1
Vested	(3.3)	(2.1)
Forfeited	0.0	0.0
Ending Balance	$ 16.6	$ 6.2
LTIP market-based vesting units
Shares
Beginning Balance (in shares)	312,704	180,500
Granted (in shares)	86,274	132,204
Vested (in shares)	(103,000)	0
Forfeited (in shares)	0	0
Ending Balance (in shares)	347,478	312,704
Weighted Average Grant Date Fair Value
Beginning Balance (in usd per share)	$ 20.59	$ 26.70
Granted (in usd per share)	65.28	12.25
Vested (in usd per share)	21.09	0
Forfeited (in usd per share)	0	0
Ending Balance (in usd per share)	$ 31.61	$ 20.59
Value
Beginning Balance	$ 6.4	$ 4.8
Granted	5.6	1.6
Vested	(2.1)	0.0
Forfeited	0.0	0.0
Ending Balance	$ 11.0	$ 6.4
LTIP market-based vesting units | Minimum
Value
Vesting percentage	0.00%
LTIP market-based vesting units | Maximum
Value
Vesting percentage	200.00%
Incremental performance shares granted
Shares
Granted (in shares)	51,500
Weighted Average Grant Date Fair Value
Granted (in usd per share)	$ 21.09
Value
Granted	$ 1.1

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Earnings per Share of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income (loss) attributable to controlling stockholders and participating securities	$ (2,838)	$ 21,175	$ 64,159	$ 57,491
Less: Dividends and distributions on participating securities	(200)	(200)	(700)	(700)
Less: Undistributed earnings attributable to participating securities	0	0	0	0
Net income (loss) attributable to controlling stockholders — basic	(3,000)	21,000	63,500	56,800
Add: Interest expense related to convertible notes under the if-converted method	0	100	1,000	100
Add: Undistributed earnings attributable to participating securities	0	0	0	0
Net income (loss) attributable to controlling stockholders — dilutive	$ (3,000)	$ 21,100	$ 64,500	$ 56,900
Denominator:
Weighted-average number of common shares — basic (in shares)	79,335,173	74,012,788	78,407,028	71,376,004
Weighted-average number of common shares — diluted (in shares)	79,335,173	76,131,252	82,069,464	72,644,626
Basic earnings per common share (in usd per share)	$ (0.04)	$ 0.28	$ 0.81	$ 0.80
Diluted earnings per common share (in usd per share)	$ (0.04)	$ 0.28	$ 0.79	$ 0.78
Securities being allocated a portion of earnings:
Weighted-average number of OP units (in shares)	559,686	321,261	459,848	301,582
Participating securities:
Potential shares of common stock related to convertible notes (in shares)	3,494,175	8,485,630
LTIP Units with market-based vesting conditions
Participating securities:
Unvested restricted common stock and unvested LTIP Units with time-based vesting conditions (in shares)	581,301	653,071
Potentially dilutive securities (in shares)	347,478	312,704
Restricted stock units
Participating securities:
Potentially dilutive securities (in shares)	81,846	235,866

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Equity Method Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Income (loss) from equity method investments	$ (7,215)	$ 16,506	$ 69,519	$ 32,505

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Equity Method Investments - Summary of Consolidated Financial Position and Results of Operations of Significant Entities, Accounted for Using Equity Method (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Balance Sheet
Total assets	$ 3,940,863				$ 3,940,863		$ 3,459,067
Total liabilities	2,467,478				2,467,478		2,248,918
Members' equity	1,473,385	$ 1,097,737	$ 1,322,547	$ 1,067,964	1,473,385	$ 1,097,737	1,210,149	$ 939,912
Income Statement
Revenue	48,882	48,589			159,470	138,018
Income (loss) from continuing operations	(4,349)	23,622			76,035	60,606
Net income (loss)	$ (3,099)	$ 21,277			$ 64,525	$ 57,746
SunStrong Capital Holdings LLC
Balance Sheet
Current assets			87,000				92,000
Total assets			1,624,000				1,532,000
Current liabilities			63,000				48,000
Total liabilities			1,282,000				1,217,000
Members' equity			342,000				315,000
Income Statement
Revenue			67,000	61,000
Income (loss) from continuing operations			2,000	(4,000)
Net income (loss)			2,000	(4,000)
Rosie Target Co, LLC
Balance Sheet
Current assets			11,000				25,000
Total assets			282,000				299,000
Current liabilities			5,000				19,000
Total liabilities			101,000				118,000
Members' equity			181,000				181,000
Income Statement
Revenue			6,000	0
Income (loss) from continuing operations			(3,000)	0
Net income (loss)			(3,000)	0
Lighthouse Renewable HoldCo LLC
Balance Sheet
Current assets			11,000				22,000
Total assets			482,000				497,000
Current liabilities			41,000				22,000
Total liabilities			130,000				87,000
Members' equity			352,000				410,000
Income Statement
Revenue			(71,000)	0
Income (loss) from continuing operations			(88,000)	0
Net income (loss)			(88,000)	0
Summit Ridge Capital Holdings, LLC
Balance Sheet
Current assets			51,000				18,000
Total assets			407,000				268,000
Current liabilities			58,000				43,000
Total liabilities			357,000				243,000
Members' equity			50,000				25,000
Income Statement
Revenue			6,000	1,000
Income (loss) from continuing operations			(5,000)	(2,000)
Net income (loss)			(5,000)	(2,000)
Vivint Solar Asset 3 Holdco Parent LLC
Balance Sheet
Current assets			60,000				86,000
Total assets			441,000				303,000
Current liabilities			8,000				3,000
Total liabilities			353,000				139,000
Members' equity			88,000				164,000
Income Statement
Revenue			11,000	0
Income (loss) from continuing operations			4,000	0
Net income (loss)			4,000	0
Other investees
Balance Sheet
Current assets			636,000				539,000
Total assets			7,900,000				7,340,000
Current liabilities			587,000				518,000
Total liabilities			2,586,000				2,298,000
Members' equity			5,314,000				5,042,000
Income Statement
Revenue			4,000	118,000
Income (loss) from continuing operations			(283,000)	(1,000)
Net income (loss)			(283,000)	(1,000)
Total
Balance Sheet
Current assets			856,000				782,000
Total assets			11,136,000				10,239,000
Current liabilities			762,000				653,000
Total liabilities			4,809,000				4,102,000
Members' equity			6,327,000				$ 6,137,000
Income Statement
Revenue			23,000	180,000
Income (loss) from continuing operations			(373,000)	(7,000)
Net income (loss)			$ (373,000)	$ (7,000)

XML

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]