10-Q

.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

FOR THE QUARTERLY PERIOD ENDED March 31, 2023

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: 1-34392

PLUG POWER INC.

(Exact name of registrant as specified in its charter)

Delaware	22-3672377
(State or Other Jurisdiction of	(I.R.S. Employer
Incorporation or Organization)	Identification Number)

968 ALBANY SHAKER ROAD, LATHAM, NEW YORK 12110

(Address of Principal Executive Offices, including Zip Code)

(518) 782-7700

(Registrant’s telephone number, including area code)

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, par value $.01 per share	PLUG	The NASDAQ Capital Market

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, 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 ☒

The number of shares of common stock, par value of $0.01 per share, outstanding as of May 4, 2023 was 600,536,746 shares.

INDEX to FORM 10-Q

	Page
PART I. FINANCIAL INFORMATION
Item 1 – Interim Condensed Consolidated Financial Statements (Unaudited)	3
Condensed Consolidated Balance Sheets	3
Condensed Consolidated Statements of Operations	4
Condensed Consolidated Statements of Comprehensive Loss	5
Condensed Consolidated Statements of Stockholders’ Equity	6
Condensed Consolidated Statements of Cash Flows	7
Notes to Interim Condensed Consolidated Financial Statements	8
Item 2 – Management’s Discussion and Analysis of Financial Condition and Results of Operations	35
Item 3 – Quantitative and Qualitative Disclosures About Market Risk	51
Item 4 – Controls and Procedures	51
PART II. OTHER INFORMATION
Item 1 – Legal Proceedings	52
Item 1A – Risk Factors	52
Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds	54
Item 3 – Defaults Upon Senior Securities	54
Item 4 – Mine Safety Disclosures	54
Item 5 – Other Information	54
Item 6 – Exhibits	55
Signatures	56

2

PART 1.  FINANCIAL INFORMATION

Item 1 — Interim Financial Statements (Unaudited)

Plug Power Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(In thousands, except share and per share amounts)

(Unaudited)

	March 31,		December 31,
	2023		2022
Assets
Current assets:
Cash and cash equivalents	$	474,861	$	690,630
Restricted cash		175,978		158,958
Available-for-sale securities, at fair value (amortized cost of $1,045,731 and allowance for credit losses of $0 at March 31, 2023 and amortized cost of $1,355,614 and allowance for credit losses of $0 at December 31, 2022		1,028,371		1,332,943
Equity securities		139,911		134,836
Accounts receivable		127,720		129,450
Inventory		775,649		645,636
Contract assets		99,012		62,456
Prepaid expenses and other current assets		155,822		150,389
Total current assets		2,977,324		3,305,298
Restricted cash		722,467		699,756
Property, plant, and equipment, net		874,659		719,793
Right of use assets related to finance leases, net		56,708		53,742
Right of use assets related to operating leases, net		371,472		360,287
Equipment related to power purchase agreements and fuel delivered to customers, net		98,301		89,293
Contract assets		25,418		41,831
Goodwill		249,871		248,607
Intangible assets, net		203,740		207,725
Investments in non-consolidated entities and non-marketable equity securities		67,350		31,250
Other assets		6,783		6,694
Total assets	$	5,654,093	$	5,764,276
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	188,149	$	191,895
Accrued expenses		167,754		156,430
Deferred revenue and other contract liabilities		137,357		131,813
Operating lease liabilities		52,859		48,861
Finance lease liabilities		8,622		8,149
Finance obligations		63,370		58,925
Current portion of long-term debt		5,228		5,142
Contingent consideration, loss accrual for service contracts, and other current liabilities		54,201		34,060
Total current liabilities		677,540		635,275
Deferred revenue and other contract liabilities		82,793		98,085
Operating lease liabilities		274,940		271,504
Finance lease liabilities		39,404		37,988
Finance obligations		279,444		270,315
Convertible senior notes, net		194,250		193,919
Long-term debt		3,799		3,925
Contingent consideration, loss accrual for service contracts, and other liabilities		180,273		193,051
Total liabilities		1,732,443		1,704,062
Stockholders’ equity:
Common stock, $0.01 par value per share; 1,500,000,000 shares authorized; Issued (including shares in treasury): 611,951,626 at March 31, 2023 and 608,421,785 at December 31, 2022		6,120		6,084
Additional paid-in capital		7,360,887		7,297,306
Accumulated other comprehensive loss		(19,034)		(26,004)
Accumulated deficit		(3,327,472)		(3,120,911)
Less common stock in treasury: 18,245,914 at March 31, 2023 and 18,076,127 at December 31, 2022		(98,851)		(96,261)
Total stockholders’ equity		3,921,650		4,060,214
Total liabilities and stockholders’ equity	$	5,654,093	$	5,764,276

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements

3

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Operations

(In thousands, except share and per share amounts)

(Unaudited)

	Three Months Ended
	March 31,
	2023		2022
Net revenue:
Sales of equipment, related infrastructure and other	$	182,094	$	108,847
Services performed on fuel cell systems and related infrastructure		9,097		8,240
Power purchase agreements		7,937		10,037
Fuel delivered to customers and related equipment		10,142		13,429
Other		1,016		251
Net revenue		210,286		140,804
Cost of revenue:
Sales of equipment, related infrastructure and other		158,320		88,828
Services performed on fuel cell systems and related infrastructure		12,221		13,875
Provision for loss contracts related to service		6,889		2,048
Power purchase agreements		46,816		31,753
Fuel delivered to customers and related equipment		54,501		39,272
Other		935		377
Total cost of revenue		279,682		176,153
Gross loss		(69,396)		(35,349)
Operating expenses:
Research and development		26,535		20,461
Selling, general and administrative		104,016		80,890
Impairment of long-lived assets		1,083		—
Change in fair value of contingent consideration		8,769		2,461
Total operating expenses		140,403		103,812
Operating loss		(209,799)		(139,161)
Interest income		17,632		2,054
Interest expense		(10,650)		(8,648)
Other expense, net		(4,771)		(1,309)
Realized loss on investments, net		(1)		(847)
Change in fair value of equity securities		5,075		(5,159)
Loss on equity method investments		(5,317)		(3,833)
Loss before income taxes	$	(207,831)	$	(156,903)
Income tax benefit		(1,270)		(414)
Net loss	$	(206,561)	$	(156,489)
Net loss per share:
Basic and diluted	$	(0.35)	$	(0.27)
Weighted average number of common stock outstanding		589,205,165		577,866,983

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements

4

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Comprehensive Loss

(In thousands)

(Unaudited)

	Three months ended
	March 31,
	2023		2022
Net loss	$	(206,561)	$	(156,489)
Other comprehensive (loss)/income
Foreign currency translation (loss)/gain		1,659		(1,850)
Change in net unrealized loss on available-for-sale securities		5,311		(15,080)
Comprehensive loss attributable to the Company, net of tax	$	(199,591)	$	(173,419)

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements

5

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Stockholders’ Equity

(In thousands, except share amounts)

(Unaudited)

						Accumulated
				Additional		Other							Total
	Common Stock			Paid-in		Comprehensive		Treasury Stock			Accumulated		Stockholders’
	Shares	Amount		Capital		Income (Loss)		Shares	Amount		Deficit		Equity
December 31, 2022	608,421,785	$	6,084	$	7,297,306	$	(26,004)	18,076,127	$	(96,261)	$	(3,120,911)	$	4,060,214
Net loss	—		—		—		—	—		—		(206,561)		(206,561)
Other comprehensive income	—		—		—		6,970	—		—		—		6,970
Stock-based compensation	228,954		2		43,300		—	—		—		—		43,302
Stock option exercises and issuance of common stock upon vesting of restricted stock unit awards	620,250		6		668		—	—		—		—		674
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock units	—		—		—		—	169,787		(2,590)		—		(2,590)
Exercise of common stock warrants	2,680,637		28		(28)									—
Provision for common stock warrants	—		—		19,641		—	—		—		—		19,641
March 31, 2023	611,951,626	$	6,120	$	7,360,887	$	(19,034)	18,245,914	$	(98,851)	$	(3,327,472)	$	3,921,650
December 31, 2021	594,729,610	$	5,947	$	7,070,710	$	(1,532)	17,074,710	$	(72,526)	$	(2,396,903)	$	4,605,696
Net loss	—		—		—		—	—		—		(156,489)		(156,489)
Other comprehensive loss	—		—		—		(16,930)	—		—		—		(16,930)
Stock-based compensation	226,221		2		43,384		—	—		—		—		43,386
Stock option exercises and issuance of common stock upon vesting of restricted stock unit awards	253,525		3		288		—	—		—		—		291
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock units	—		—		—		—	71,627		(1,465)		—		(1,465)
Provision for common stock warrants	—		—		1,743		—	—		—		—		1,743
March 31, 2022	595,209,356	$	5,952	$	7,116,125	$	(18,462)	17,146,337	$	(73,991)	$	(2,553,392)	$	4,476,232

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements

6

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

	Three months ended March 31,
	2023		2022
Operating activities
Net loss	$	(206,561)	$	(156,489)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of long-lived assets		9,789		2,842
Amortization of intangible assets		4,959		5,190
Stock-based compensation		43,302		43,386
Amortization of debt issuance costs and discount on convertible senior notes		621		661
Provision for common stock warrants		14,175		1,852
Deferred income tax benefit		(947)		(414)
Impairment of long-lived assets		1,083		—
Loss/(benefit) on service contracts		221		(7,297)
Fair value adjustment to contingent consideration		8,769		(2,461)
Net realized loss on investments		1		847
(Accretion)/amortization of premium on available-for-sale securities		(5,945)		2,290
Lease origination costs		(2,660)		(1,613)
Change in fair value for equity securities		(5,075)		5,159
Loss on equity method investments		5,317		3,833
Changes in operating assets and liabilities that provide (use) cash:
Accounts receivable		1,730		36,170
Inventory		(129,572)		(63,702)
Contract assets		(14,677)		44
Prepaid expenses and other assets		(5,522)		(27,107)
Accounts payable, accrued expenses, and other liabilities		13,821		(25,096)
Deferred revenue and other contract liabilities		(9,748)		(28,014)
Net cash used in operating activities		(276,919)		(209,919)
Investing activities
Purchases of property, plant and equipment		(168,565)		(78,394)
Purchases of equipment related to power purchase agreements and equipment related to fuel delivered to customers		(11,389)		(6,796)
Purchase of available-for-sale securities		—		(114,173)
Proceeds from sales of available-for-sale securities		—		469,563
Proceeds from maturities of available-for-sale securities		315,827		67,430
Purchase of equity securities		—		(4,990)
Net cash paid for acquisitions		—		(26,473)
Cash paid for non-consolidated entities and non-marketable equity securities		(40,077)		(32,253)
Net cash provided by investing activities		95,796		273,914
Financing activities
Payments of contingent consideration		(2,000)		(2,667)
Payments of tax withholding on behalf of employees for net stock settlement of stock-based compensation		(2,590)		(1,465)
Proceeds from exercise of stock options		674		291
Principal payments on long-term debt		(330)		(19,246)
Proceeds from finance obligations		27,927		17,273
Principal repayments of finance obligations and finance leases		(16,500)		(12,427)
Net cash provided by (used in) financing activities		7,181		(18,241)
Effect of exchange rate changes on cash		(2,096)		634
(Decrease)/increase in cash and cash equivalents		(215,769)		14,345
Increase in restricted cash		39,731		32,043
Cash, cash equivalents, and restricted cash beginning of period		1,549,344		3,132,194
Cash, cash equivalents, and restricted cash end of period	$	1,373,306	$	3,178,582
Supplemental disclosure of cash flow information
Cash paid for interest, net of capitalized interest of $2.0 million	$	7,869	$	5,731
Summary of non-cash activity
Recognition of right of use asset - finance leases	$	4,018	$	8,070
Recognition of right of use asset - operating leases		22,470		20,070
Net tangible assets acquired in a business combination		—		56,929
Intangible assets acquired in a business combination		—		60,522
Net transfers between inventory and long-lived assets		441		489
Accrued purchase of fixed assets, cash to be paid in subsequent period		65,701		6,707

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements

7

1.  Nature of Operations

Plug Power Inc. (the “Company,” “Plug,” “we” or “our”) is facilitating the paradigm shift to an increasingly electrified world by innovating cutting-edge hydrogen and fuel cell solutions. While we continue to develop commercially viable hydrogen and fuel cell product solutions, we have expanded our offerings to support a variety of commercial operations that can be powered with green hydrogen. We provide electrolyzers that allow customers — such as refineries, producers of chemicals, steel, fertilizer and commercial refueling stations — to generate hydrogen on-site. We are focusing our efforts on (a) industrial mobility applications, including electric forklifts and electric industrial vehicles, at multi-shift high volume manufacturing and high throughput distribution sites where we believe our products and services provide a unique combination of productivity, flexibility, and environmental benefits; (b) stationary power systems that will support critical operations, such as data centers, microgrids, and generation facilities, in either a backup power or continuous power role and replace batteries, diesel generators or the grid for telecommunication logistics, transportation, and utility customers; and (c) production of hydrogen. Plug expects to support these products and customers with an ecosystem of vertically integrated products that produce, transport, store and handle, dispense, and use hydrogen for mobility and power applications.

2.  Summary of Significant Accounting Policies

Principles of Consolidation

The unaudited interim condensed consolidated financial statements include the financial statements of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. In addition, we include our share of the results of our joint venture with Renault SAS (“Renault”) named HyVia SAS, a French société par actions simplifiée (“HyVia”), AccionaPlug S.L. (AccionaPlug), and SK Plug Hyverse Co., Ltd. (“SK Plug Hyverse”), using the equity method based on our economic ownership interest and our ability to exercise significant influence over the operating and financial decisions of HyVia, AccionaPlug and SK Plug Hyverse. Additionally, we consolidate the results of our joint venture with Niloco Hydrogen Holdings LLC, a wholly-owned subsidiary of Olin Corporation (“Olin”), named “Hidrogenii”.

Interim Financial Statements

The accompanying unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, all adjustments, which consist solely of normal recurring adjustments, necessary to present fairly, in accordance with U.S. generally accepted accounting principles (“GAAP”), the financial position, results of operations and cash flows for all periods presented, have been made. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the full year.

Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “2022 Form 10-K”).

The information presented in the accompanying unaudited interim condensed consolidated balance sheets as of December 31, 2022 has been derived from the Company’s December 31, 2022 audited consolidated financial statements.

The unaudited interim condensed consolidated financial statements contained herein should be read in conjunction with our 2022 Form 10-K.

8

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

Other than the adoption of the accounting guidance mentioned in our 2022 Form 10-K, there have been no other significant changes in our reported financial position or results of operations and cash flows resulting from the adoption of new accounting pronouncements.

Recent Accounting Guidance Not Yet Effective

All issued but not yet effective accounting and reporting standards as of March 31, 2023 are either not applicable to the Company or are not expected to have a material impact on the Company.

3. Acquisitions

Alloy Custom Products, LLC and WesMor Cryogenics, LLC

On December 5, 2022, the Company acquired two subsidiaries of Cryogenic Industrial Solutions, LLC, Alloy Custom Products, LLC and WesMor Cryogenics, LLC (collectively, “CIS”). The CIS acquisition is expected to increase the Company’s production capabilities for stainless steel and aluminum cryogenic transport truck-mounted cryogenic pressure vessels, cryogenic transport trailers, and other mobile storage containers.

The fair value of consideration paid by the Company in connection with the CIS acquisition was as follows (in thousands):

Cash	$	30,700
Due to Cryogenic Industrial Solutions, LLC		500
Plug Power Inc. Common Stock		6,107
Total consideration	$	37,307

The following table summarizes the preliminary allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Cash	$	267
Accounts receivable		5,038
Inventory		11,120
Prepaid expenses and other assets		464
Property, plant and equipment		3,887
Right of use asset		1,538
Identifiable intangible assets		13,430
Lease liability		(1,562)
Accounts payable, accrued expenses and other liabilities		(3,826)
Deferred revenue		(6,193)
Total net assets acquired, excluding goodwill	$	24,163

The preliminary allocation of the purchase price is considered provisional pending the finalization of the valuation for the assets acquired and liabilities assumed and related tax liabilities, if any, in relation to the CIS acquisition. Therefore, the fair values of the assets acquired and liabilities assumed are subject to change as we obtain additional information for valuation assumptions such as market demand for CIS product lines to support forecasted financial data, which will not exceed 12 months from the date of acquisition. There have been no measurement period adjustments recorded for the three months ended March 31, 2023.

9

The fair value of the tradename totaling $6.2 million was calculated using the relief from royalty approach which is a variant of the income approach, and was assigned a useful life of fifteen years. The fair value of the customer relationships totaling $7.1 million was calculated using the multi-period excess earnings method (“MPEEM”) approach which is a variant of the income approach, and was assigned a useful life of fifteen years. The basic principle of the MPEEM approach is that a single asset, in isolation, is not capable of generating cash flow for an enterprise. Several assets are brought together and exploited to generate cash flow. The fair value of the non-compete agreements was $0.2 million with a useful life of five years.  

The goodwill was primarily attributed to the value of synergies created with the Company’s current and future offerings and the value of the assembled workforce. Goodwill and intangible assets are not deductible for income tax purposes. Goodwill associated with the CIS acquisition was calculated as follows (in thousands):

Consideration paid	$	37,307
Less: net assets acquired		(24,163)
Total goodwill recognized	$	13,144

The acquisition of CIS contributed $11.1 million to total consolidated revenue for the three months ended March 31, 2023. The Company determined it immaterial to report net loss for the CIS acquisition for the three months ended March 31, 2023.

Joule Processing LLC

On January 14, 2022, the Company acquired Joule Processing LLC (“Joule”), an engineered modular equipment, process design and procurement company founded in 2009.

The fair value of consideration paid by the Company in connection with the Joule acquisition was as follows (in thousands):

Cash	$	28,140
Contingent consideration		41,732
Total consideration	$	69,872

The contingent consideration represents the estimated fair value associated with earn-out payments of up to $130 million that the sellers are eligible to receive in cash or shares of the Company’s common stock (at the Company’s election). Of the total earnout consideration, $90 million is related to the achievement of certain financial performance and $40 million is related to the achievement of certain internal operational milestones.

The following table summarizes the final allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Current assets	$	2,672
Property, plant and equipment		493
Right of use asset		182
Identifiable intangible assets		60,522
Lease liability		(374)
Current liabilities		(2,612)
Contract liability		(3,818)
Total net assets acquired, excluding goodwill	$	57,065

The fair value of the developed technology totaling $59.2 million included in the identifiable intangible assets was calculated using the MPEEM approach. Therefore, to determine cash flow from the developed technology over its useful life of 15 years, one must deduct the related expenses incurred for the exploitation of other assets used for the generation of overall cash flow. The fair value of the tradename totaling $0.8 million was calculated using the relief from

10

royalty approach, which is a variant of the income approach, and was assigned a useful life of four years. The fair value of the non-compete agreements was $0.5 million with a useful life of six years.

In addition to identifiable intangible assets, the fair value of acquired work in process and finished goods inventory, included in inventory, was estimated based on the estimated selling price less costs to be incurred and a market participant profit rate.

In connection with the acquisition, the Company recorded on its consolidated balance sheet a liability of $41.7 million representing the fair value of contingent consideration payable, and is recorded in the unaudited interim condensed consolidated balance sheet in contingent consideration, loss accrual for service contracts, and other current liabilities. The fair value of this contingent consideration was $59.9 million and $53.2 million as of March 31, 2023 and December 31, 2022, respectively, and as a result $6.7 million reduction was recorded in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

Included in the purchase price consideration are contingent earn-out payments as described above. Due to the nature of the earn-outs, a scenario-based analysis using the probability of achieving the milestone expectations was used to determine the fair value of the contingent consideration. These fair value measurements were based on unobservable inputs and are considered to be level 3 financial instruments.

The goodwill was primarily attributed to the value of synergies created with the Company’s current and future offerings and the value of the assembled workforce. Goodwill and intangible assets are not deductible for income tax purposes. Goodwill associated with the Joule acquisition was calculated as follows (in thousands):

Consideration paid	$	28,140
Contingent consideration		41,732
Less: net assets acquired		(57,065)
Total goodwill recognized	$	12,807

The acquisition of Joule contributed $20.7 million and $1.4 million to total consolidated revenue for the three months ended March 31, 2023 and 2022, respectively. The Company determined it immaterial to report net loss for the Joule acquisition for the three months ended March 31, 2023.

The CIS and Joule acquisitions were not material to our consolidated results of operations or financial position and, therefore, pro forma financial information is not presented.

4. Extended Maintenance Contracts

On a quarterly basis, we evaluate any potential losses related to our extended maintenance contracts for fuel cell systems, related infrastructure and equipment that have been sold. The following table shows the roll forward of balances in the accrual for loss contracts, including changes due to the provision for loss accrual, loss accrual acquired from acquisition, releases to service cost of sales, releases due to the provision for warrants, and foreign currency translation adjustment (in thousands):

	Three months		Year
	ended		ended
	March 31, 2023		December 31, 2022
Beginning balance	$	81,066	$	89,773
Provision for loss accrual		6,981		23,295
Releases to service cost of sales		(6,668)		(35,446)
Increase/(decrease) to loss accrual related to customer warrants		(92)		3,506
Foreign currency translation adjustment		25		(62)
Ending balance	$	81,312	$	81,066

11

5. Earnings Per Share

Basic earnings per common stock are computed by dividing net loss attributable to common stockholders by the weighted average number of common stock outstanding during the reporting period. In periods when we have net income, the shares of our common stock subject to the convertible notes outstanding during the period will be included in our diluted earnings per share under the if-converted method. Since the Company is in a net loss position, all common stock equivalents would be considered anti-dilutive and are therefore not included in the determination of diluted earnings per share. Accordingly, basic and diluted loss per share are the same.

The potentially dilutive securities are summarized as follows:

	At March 31,
	2023	2022
Stock options outstanding (1)	27,479,533	24,185,000
Restricted stock and restricted stock units outstanding (2)	5,888,013	5,439,207
Common stock warrants (3)	85,879,175	80,017,181
Convertible Senior Notes (4)	39,170,766	39,170,766
Number of dilutive potential shares of common stock	158,417,487	148,812,154

(1) During the three months ended March 31, 2023 and 2022, the Company granted options for 94,550 and 451,500 shares of common stock, respectively.

(2) During the three months ended March 31, 2023 and 2022, the Company granted 94,550 and 802,500 shares of restricted stock and restricted stock units, respectively.

(3) In August 2022, the Company issued a warrant to acquire up to 16,000,000 shares of the Company’s common stock as part of a transaction agreement with Amazon.com, Inc. (“Amazon”), subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had not been exercised as of March 31, 2023.  

In April 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Amazon, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.  

In July 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Walmart, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.

(4) In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due 2023 (the “5.5% Convertible Senior Notes”).  In May 2020, the Company repurchased $66.3 million of the 5.5% Convertible Senior Notes and in the fourth quarter of 2020, $33.5 million of the 5.5% Convertible Senior Notes were converted into approximately 14.6 million shares of common stock. The remaining $0.2 million aggregate principal amount of the 5.5% Convertible Senior Notes were converted into 69,808 shares of common stock in January 2021. In May 2020, the Company issued $212.5 million in aggregate principal amount of the 3.75% Convertible Senior Notes due 2025 (the “3.75% Convertible Senior Notes).  There were no conversions for the three months ended March 31, 2023 and 2022.

Million of

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6. Inventory

Inventory as of March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Raw materials and supplies - production locations	$	550,315	$	450,432
Raw materials and supplies - customer locations		21,765		18,860
Work-in-process		139,013		112,231
Finished goods		64,556		64,113
Inventory	$	775,649	$	645,636

As of March 31, 2023 and December 31, 2022, the reserve for excess and obsolete inventory was $5.4 million.

Inventory is primarily comprised of raw materials, work-in-process, and finished goods. The increase in inventory is primarily due to a combination of new product offerings, as well as increased revenue and orders.

7. Property, Plant and Equipment

Property, plant and equipment at March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31, 2023		December 31, 2022
Land	$	1,772	$	1,772
Construction in progress		697,456		575,141
Building and leasehold improvements		40,548		21,363
Software, machinery, and equipment		188,530		169,633
Property, plant, and equipment		928,306		767,909
Less: accumulated depreciation		(53,647)		(48,116)
Property, plant, and equipment, net	$	874,659	$	719,793

Construction in progress is primarily comprised of construction of five hydrogen production plants, the Gigafactory in Rochester, NY, and our facility in the Slingerlands, NY.  Completed assets are transferred to their respective asset classes, and depreciation begins when an asset is ready for its intended use. Interest on outstanding debt is capitalized during periods of capital asset construction and amortized over the useful lives of the related assets. During the three months ended March 31, 2023 and 2022, the Company capitalized $2.0 million and $4.3 million of interest, respectively.

Depreciation expense related to property, plant and equipment was $5.5 million and $2.6 million for the three months ended March 31, 2023 and 2022, respectively.

8. Intangible Assets and Goodwill

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of March 31, 2023 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,389		(14,746)	$	89,643
Dry stack electrolyzer technology	10 years		29,000		(3,142)		25,858
Customer relationships, Non-compete agreements, Backlog & Trademark	12 years		103,325		(15,086)		88,239
		$	236,714	$	(32,974)	$	203,740

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The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of December 31, 2022 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,221	$	(12,754)	$	91,467
Dry stack electrolyzer technology	10 years		29,000		(2,417)		26,583
Customer relationships, Non-compete agreements, Backlog & Trademark	13 years		102,521		(12,846)		89,675
		$	235,742	$	(28,017)	$	207,725

The change in the gross carrying amount of the acquired technology from December 31, 2022 to March 31, 2023 was primarily due to changes in foreign currency translation.

Amortization expense for acquired identifiable intangible assets for the three months ended March 31, 2023 and 2022 was $5.0 million and $5.2 million, respectively.

The estimated amortization expense for subsequent years is as follows (in thousands):

Remainder of 2023	$	14,347
2024		19,069
2025		18,294
2026		16,702
2027		16,694
2028 and thereafter		118,634
Total	$	203,740

Goodwill was $249.9 million and $248.6 million as of March 31, 2023 and December 31, 2022, which primarily increased due to foreign currency translation adjustments for goodwill associated with our international subsidiaries. 

The change in the carrying amount of goodwill for the three months ended March 31, 2023 was as follows (in thousands):

Beginning balance at December 31, 2022	$	248,607
Foreign currency translation adjustment		1,264
Ending balance at March 31, 2023	$	249,871

9. Long-Term Debt

In March 2019, the Company entered into a loan and security agreement, as amended, with Generate Lending, LLC, providing for a secured term loan facility in the amount of $100 million (the “Term Loan Facility”). In December 2022, the Company fully repaid the outstanding balance of the Term Loan Facility.

In June 2020, the Company acquired debt as part of its acquisition of United Hydrogen Group Inc. The outstanding carrying value of the debt was $9.0 million as of March 31, 2023. The outstanding principal on the debt was $11.1 million and the unamortized debt discount was $2.1 million, bearing varying interest rates ranging from 2.2% to 8.3%.  The debt is scheduled to mature in 2026. As of March 31, 2023, the principal balance is due at each of the following dates as follows (in thousands):

December 31, 2023	$	5,660
December 31, 2024		3,357
December 31, 2025		1,200
December 31, 2026		900
	$	11,117

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10. Convertible Senior Notes

3.75% Convertible Senior Notes

On May 18, 2020, the Company issued $200.0 million in aggregate principal amount of 3.75% Convertible Senior Notes due June 1, 2025, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). On May 29, 2020, the Company issued an additional $12.5 million in aggregate principal amount of 3.75% Convertible Senior Notes. During the three months ended March 31, 2023, there were no conversions of the 3.75% Convertible Senior Notes.

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Principal amounts:
Principal	$	197,278	$	197,278
Unamortized debt issuance costs (1)		(3,028)		(3,359)
Net carrying amount	$	194,250	$	193,919

1) Included in the unaudited interim condensed consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

The following table summarizes the total interest expense and effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for the effective interest rate):

	March 31,			March 31,
	2023			2022
Interest expense	$	1,849	$	1,849
Amortization of debt issuance costs		331		316
Total		2,180		2,165
Effective interest rate		4.5%		4.5%

Based on the closing price of the Company’s common stock of $11.72 on March 31, 2023, the if-converted value of the notes was greater than the principal amount. The estimated fair value of the note at March 31, 2023 was approximately $433.6 million. The fair value estimation was primarily based on an active stock exchange trade on March 29, 2023 of the 3.75% Convertible Senior Notes.

Capped Call

In conjunction with the pricing of the 3.75% Convertible Senior Notes, the Company entered into privately negotiated capped call transactions (the “3.75% Notes Capped Call”) with certain counterparties at a price of $16.2 million. The 3.75% Notes Capped Call covers, subject to anti-dilution adjustments, the aggregate number of shares of the Company’s common stock that underlie the initial 3.75% Convertible Senior Notes and is generally expected to reduce potential dilution to the Company’s common stock upon any conversion of the 3.75% Convertible Senior Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the converted notes, as the case may be, with such reduction and/or offset subject to a cap based on the cap price. The cap price of the 3.75% Notes Capped Call is initially $6.7560 per share, which represents a premium of approximately 60% over the last then-reported sale price of the Company’s common stock of $4.11 per share on the date of the transaction and is subject to certain adjustments under the terms of the 3.75% Notes Capped Call. The 3.75% Notes Capped Call becomes exercisable if the conversion option is exercised.

The net cost incurred in connection with the 3.75% Notes Capped Call were recorded as a reduction to additional paid-in capital in the unaudited interim condensed consolidated balance sheets. The book value of the 3.75% Notes Capped Call is not remeasured.

15

Common Stock Forward

In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due on March 15, 2023, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act, which have been fully repaid.  In connection with the issuance of the 5.5% Convertible Senior Notes, the Company entered into a forward stock purchase transaction (the “Common Stock Forward”), pursuant to which the Company agreed to purchase 14,397,906 shares of its common stock for settlement on or about March 15, 2023. On May 18, 2020, the Company amended and extended the maturity of the Common Stock Forward to June 1, 2025.  The number of shares of common stock that the Company will ultimately repurchase under the Common Stock Forward is subject to customary anti-dilution adjustments. The Common Stock Forward is subject to early settlement or settlement with alternative consideration in the event of certain corporate transactions.

The net cost incurred in connection with the Common Stock Forward of $27.5 million was recorded as an increase in treasury stock in the unaudited interim condensed consolidated balance sheets. The related shares were accounted for as a repurchase of common stock. The book value of the Common Stock Forward is not remeasured.

There were no shares of common stock settled in connection with the Common Stock Forward during the three months ended March 31, 2023 or during the three months ended March 31, 2022.

11.  Stockholders’ Equity

Common Stock and Warrants

On August 24, 2022, a warrant to purchase up to 16,000,000 shares of common stock was issued in connection with a transaction agreement with Amazon, as discussed in Note 12, “Warrant Transaction Agreements.”  This warrant is measured at fair value at the time of grant or modification and is classified as an equity instrument on the unaudited interim condensed consolidated balance sheets.

Accumulated Other Comprehensive Income

Accumulated Other Comprehensive Income comprises the following (in thousands):

	Gains and Losses on		Unrealized Gains and Losses on		Foreign
	Available-For-Sale		Available-For-Sale		Currency
	Securities		Securities		Items		Total
December 31, 2022	$	(749)	$	(19,472)	$	(5,783)	$	(26,004)
Net current-period other comprehensive loss		—		5,311		1,659		6,970
March 31, 2023	$	(749)	$	(14,161)	$	(4,124)	$	(19,034)
December 31, 2021	$	(150)	$	(67)	$	(1,315)	$	(1,532)
Net current-period other comprehensive loss		—		(15,080)		(1,850)		(16,930)
March 31, 2022	$	(150)	$	(15,147)	$	(3,165)	$	(18,462)

12. Warrant Transaction Agreements

Amazon Transaction Agreement in 2022

On August 24, 2022, the Company and Amazon entered into a Transaction Agreement (the “2022 Transaction Agreement”), under which the Company concurrently issued to Amazon.com NV Investment Holdings LLC, a wholly owned subsidiary of Amazon, a warrant (the “Amazon Warrant”) to acquire up to 16,000,000 shares (the “Amazon Warrant Shares”) of the Company’s common stock, subject to certain vesting events described below. The Company and Amazon entered into the 2022 Transaction Agreement in connection with a concurrent commercial arrangement under which Amazon agreed to purchase hydrogen fuel from the Company through August 24, 2029.

16

1,000,000 of the Amazon Warrant Shares vested immediately upon issuance of the Amazon Warrant. 15,000,000 of the Amazon Warrant Shares will vest in multiple tranches over the 7-year term of the Amazon Warrant based on payments made to the Company directly by Amazon or its affiliates, or indirectly through third parties, with 15,000,000 of the Amazon Warrant Shares fully vesting if Amazon-related payments of $2.1 billion are made in the aggregate. The exercise price for the first 9,000,000 Amazon Warrant Shares is $22.9841 per share and the fair value on the grant date was $20.36. The exercise price for the remaining 7,000,000 Amazon Warrant Shares will be an amount per share equal to 90% of the 30-day volume weighted average share price of the Company’s common stock as of the final vesting event that results in full vesting of the first 9,000,000 Amazon Warrant Shares. The Amazon Warrant is exercisable through August 24, 2029.

Upon the consummation of certain change of control transactions (as defined in the applicable warrant) prior to the vesting of at least 60% of the aggregate Amazon Warrant Shares, the Amazon Warrant will automatically vest and become exercisable with respect to an additional number of Amazon Warrant Shares such that 60% of the aggregate Amazon Warrant Shares shall have vested. If a change of control transaction is consummated after the vesting of at least 60% of the aggregate Amazon Warrant Shares, then no acceleration of vesting will occur with respect to any of the unvested Amazon Warrant Shares as a result of the transaction. The exercise price and the Amazon Warrant Shares issuable upon exercise of the Amazon Warrant are subject to customary antidilution adjustments.

At March 31, 2023, 1,000,000 of the Amazon Warrant Shares issued pursuant to the 2022 Transaction Agreement had vested upon issuance. The warrant fair value associated with the vested shares of $20.4 million was capitalized to contract assets in our condensed consolidated unaudited interim financial statements based on the grant date fair value and is subsequently amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The grant date fair value of tranches 2 and 3 will also be amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. Because the exercise price has yet to be determined, the fair value of tranche 4 will be remeasured at each reporting period end and amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Amazon Warrant during the three months ended March 31, 2023 was $1.1 million.

The assumptions used to calculate the valuations as of August 24, 2022 and March 31, 2023 are as follows:

	Tranches 1-3	Tranche 4
	August 24, 2022	March 31, 2023
Risk-free interest rate	3.15%	3.50%
Volatility	75.00%	75.00%
Expected average term	7 years	4 years
Exercise price	$22.98	$10.55
Stock price	$20.36	$11.72

Amazon Transaction Agreement in 2017

On April 4, 2017, the Company and Amazon entered into a Transaction Agreement (the “2017 Amazon Transaction Agreement”), pursuant to which the Company agreed to issue to Amazon.com NV Investment Holdings LLC, a warrant to acquire up to 55,286,696 Amazon Warrant Shares, subject to certain vesting events described below. The Company and Amazon entered into the 2017 Amazon Transaction Agreement in connection with existing commercial agreements between the Company and Amazon with respect to the deployment of the Company’s GenKey fuel cell technology at Amazon distribution centers. The vesting of the Amazon Warrant Shares was conditioned upon payments made by Amazon or its affiliates (directly or indirectly through third parties) pursuant to the existing commercial agreements. At December 31, 2021, all 55,286,696 of the Amazon Warrant Shares had vested.  

The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022, respectively.

17

Walmart Transaction Agreement

On July 20, 2017, the Company and Walmart entered into a Transaction Agreement (the “Walmart Transaction Agreement”), pursuant to which the Company agreed to issue to Walmart a warrant (the “Walmart Warrant”) to acquire up to 55,286,696 shares of the Company’s common stock, subject to certain vesting events (the “Walmart Warrant Shares”). The Company and Walmart entered into the Walmart Transaction Agreement in connection with existing commercial agreements between the Company and Walmart with respect to the deployment of the Company’s GenKey fuel cell technology across various Walmart distribution centers. The existing commercial agreements contemplate, but do not guarantee, future purchase orders for the Company’s fuel cell technology. The vesting of the warrant shares was conditioned upon payments made by Walmart or its affiliates (directly or indirectly through third parties) pursuant to transactions entered into after January 1, 2017 under existing commercial agreements.

The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022.

At March 31, 2023 and December 31, 2022, 27,643,347 of the Walmart Warrant Shares had vested. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Walmart Warrant during the three months ended March 31, 2023 and 2022 was $12.9 million and $1.7 million, respectively. During the three months ended March 31, 2023 and 2022, there were no exercises with respect to the Walmart Warrant.

The assumptions used to calculate the valuations of the final tranche of the Walmart Warrant as of March 31, 2023 are as follows:

	March 31, 2023
Risk-free interest rate	3.55%
Volatility	75.00%
Expected average term	3.5 years
Exercise price	$10.55
Stock price	$11.72

13. Revenue

Disaggregation of revenue

The following table provides information about disaggregation of revenue (in thousands):

Major products/services lines
	Three months ended
	March 31,
	2023		2022
Sales of fuel cell systems	$	28,852	$	37,528
Sales of hydrogen infrastructure		48,868		27,089
Sales of electrolyzers		40,032		4,059
Sales of engineered equipment		7,753		21,968
Services performed on fuel cell systems and related infrastructure		9,097		8,240
Power Purchase Agreements		7,937		10,037
Fuel delivered to customers and related equipment		10,142		13,429
Sales of cryogenic equipment and other		56,589		18,203
Other		1,016		251
Net revenue	$	210,286	$	140,804

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Contract balances

The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):

	March 31,		December 31,
	2023		2022
Accounts receivable	$	127,720	$	129,450
Contract assets		124,430		104,287
Deferred revenue and contract liabilities		220,150		229,898

Contract assets relate to contracts for which revenue is recognized on a straight-line basis; however, billings escalate over the life of a contract. Contract assets also include amounts recognized as revenue in advance of billings to customers, which are dependent upon the satisfaction of another performance obligation. These amounts are included in contract assets on the accompanying unaudited interim condensed consolidated balance sheets.

The contract liabilities relate to the advance consideration received from customers for services that will be recognized over time (primarily fuel cell and related infrastructure services) and advance consideration received from customers prior to delivery of products. These amounts are included within deferred revenue and other contract liabilities on the unaudited interim condensed consolidated balance sheets.

Significant changes in the contract assets and the contract liabilities balances during the period are as follows (in thousands):

Contract assets
	March 31,		December 31,
	2023		2022
Transferred to receivables from contract assets recognized at the beginning of the period	$	(19,709)	$	(33,394)
Contract assets related to warrants		5,577		26,455
Revenue recognized and not billed as of the end of the period		34,275		72,469
Net change in contract assets	$	20,143	$	65,530

Deferred revenue and contract liabilities
	March 31,		December 31,
	2023		2022
Increases due to cash received, net of amounts recognized as revenue during the period	$	80,740	$	200,347
Contract liabilities assumed as part of acquisitions		—		10,011
Revenue recognized that was included in the contract liability balance as of the beginning of the period		(90,488)		(163,550)
Net change in deferred revenue and contract liabilities	$	(9,748)	$	46,808

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Estimated future revenue

The following table includes estimated revenue included in the backlog expected to be recognized in the future (sales of fuel cell systems, equipment, and hydrogen installations are expected to be recognized as revenue within one year; sales of services, Power Purchase Agreements (“PPAs”), and fuel are expected to be recognized as revenue over five to ten years) related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period, including provision for common stock warrants (in thousands):

	March 31,
	2023
Sales of fuel cell systems	$	53,578
Sales of hydrogen installations and other infrastructure		21,807
Sales of electrolyzers		281,720
Sales of engineered equipment		16,628
Services performed on fuel cell systems and related infrastructure		121,418
Power Purchase Agreements		385,096
Fuel delivered to customers and related equipment		92,470
Sales of cryogenic equipment		121,657
Total estimated future revenue	$	1,094,374

Contract costs

Contract costs consist of capitalized commission fees and other expenses related to obtaining or fulfilling a contract. Capitalized contract costs at March 31, 2023 and December 31, 2022 were $0.6 million.

14. Income Taxes

The Company recorded $1.3 million and $0.4 million of income tax benefit for the three months ended March 31, 2023 and 2022, respectively. The Company has not changed its overall conclusion with respect to the need for a valuation allowance against its domestic net deferred tax assets, which remain fully reserved.

The domestic net deferred tax asset generated from the Company’s net operating loss has been offset by a full valuation allowance because it is more likely than not that the tax benefits of the net operating loss carry forward will not be realized. The Company recognizes accrued interest and penalties related to unrecognized tax benefits, if any, as a component of income tax expense.

15. Fair Value Measurements

The Company records the fair value of assets and liabilities in accordance with ASC 820, Fair Value Measurement (“ASC 820”). ASC 820 defines fair value as the price received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. The fair value should be calculated based on assumptions that market participants would use in pricing the asset or liability, not on assumptions specific to the entity.

In addition to defining fair value, ASC 820 expands the disclosure requirements around fair value and establishes a fair value hierarchy for valuation inputs. The hierarchy prioritizes the inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of the three levels, which is determined by the lowest level input that is significant to the fair value measurement in its entirety.

These levels are:

● Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities.

● Level 2 — quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

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● Level 3 — unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability at fair value.

Securities reported at fair value utilizing Level 1 inputs represent assets whose fair value is determined based upon observable unadjusted quoted market prices for identical assets in active markets. Level 2 securities represent assets whose fair value is determined using observable market information such as previous day trade prices, quotes from less active markets or quoted prices of securities with similar characteristics.  Available-for-sale securities are characterized as Level 2 assets, as their fair values are determined using observable market inputs. Equity securities are characterized as Level 1 assets, as their fair values are determined using active markets for identical assets. There were no transfers between Level 1, Level 2, or Level 3 for the three months ended March 31, 2023.

Financial instruments not recorded at fair value on a recurring basis include equity method investments that have not been remeasured or impaired in the current period, such as our investments in HyVia, AccionaPlug, and SK Plug Hyverse. During the three months ended March 31, 2023, the Company contributed approximately $40.1 million to HyVia, AccionaPlug and SK Plug Hyverse.

Assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands):

	As of March 31, 2023
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	208,358	$	208,358	$	208,358	$	—	$	—
Corporate bonds		163,863		163,863		—		163,863		—
U.S. Treasuries		864,508		864,508		864,508		—		—
Equity securities		139,911		139,911		139,911		—		—
Liabilities
Contingent consideration		123,473		123,473		—		—		123,473

	As of December 31, 2022
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	212,577	$	212,577	$	212,577	$	—	$	—
Corporate bonds		193,633		193,633		—		193,633		—
U.S. Treasuries		1,139,310		1,139,310		1,139,310		—		—
Equity securities		134,836		134,836		134,836		—		—
Liabilities
Contingent consideration		116,165		116,165		—		—		116,165

The liabilities measured at fair value on a recurring basis that have unobservable inputs and are therefore categorized as level 3 are related to contingent consideration. The fair value as of March 31, 2023 of $123.5 million is comprised of $59.9 million related to the acquisition of Joule, as well as $63.6 million from the Frames Holding B.V. (“Frames”) and Applied Cryo Technologies, Inc. (“Applied Cryo”) acquisitions in 2021 and the Giner ELX, Inc. and United Hydrogen Group Inc. acquisition in 2020.

In connection with the Applied Cryo acquisition, the Company recorded on its consolidated balance sheet an initial liability of $14.0 million representing the fair value of contingent consideration payable, and is recorded in the unaudited interim condensed consolidated balance sheet in contingent consideration, loss accrual for service contracts, and other current liabilities. The fair value of this contingent consideration was $19.0 million and $15.9 million as of March 31, 2023 and December 31, 2022, respectively, and as a result a $3.1 million increase was recorded due to a settlement with the sellers. We expect $19.0 million to be paid to the sellers in the second quarter of 2023.

In connection with the Frames acquisition, the Company recorded on its consolidated balance sheet a liability of $29.1 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $29.7 million and $31.0 million as of March 31, 2023 and December 31, 2022, respectively. The change in fair value compared to December 31, 2022 was due to a change in the foreign currency translation, partially offset by an decrease in the liability. The Company recorded an adjustment of $1.3 million for the three months ended March 31,

21

2023 in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations.

In connection with the Giner ELX, Inc. acquisition the Company recorded on its consolidated balance sheet a liability of $16.0 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $13.3 million and $14.5 million as of March 31, 2023 and December 31, 2022, respectively, and as a result, a $1.3 million decrease was recorded in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

In connection with the United Hydrogen Group Inc. acquisition the Company recorded on its consolidated balance sheet a liability of $1.1 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $1.6 million and $1.5 million as of March 31, 2023 and December 31, 2022, respectively, and, as a result, a $0.1 million increase was recorded in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

In the unaudited interim condensed consolidated balance sheets, contingent consideration is recorded in the contingent consideration, loss accrual for service contracts, and other current liabilities financial statement line item, and is comprised of the following unobservable inputs for the three months ending March 31, 2023:

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	87,049	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,880	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		24,544	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	123,473

In the unaudited interim condensed consolidated balance sheets, contingent consideration is recorded in the contingent consideration, loss accrual for service contracts, and other current liabilities financial statement line item, and is comprised of the following unobservable inputs for the twelve months ending December 31, 2022:

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	85,269	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,310	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		19,586	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	116,165

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The change in the carrying amount of Level 3 liabilities for the three month period ended March 31, 2023 was as follows (in thousands):

	Three months ended
	March 31, 2023
Beginning balance at December 31, 2022	$	116,165
Payments		(2,000)
Fair value adjustments		8,769
Foreign currency translation adjustment		539
Ending balance at March 31, 2023	$	123,473

16. Investments

The fair values of the Company’s investments are based upon prices provided by an independent pricing service provider. Management has assessed and concluded that these prices are reasonable and has not adjusted any prices received from the independent pricing service provider.

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	169,804	$	15	$	(5,956)	$	163,863		—
U.S. Treasuries		875,927		106		(11,525)		864,508		—
Total	$	1,045,731	$	121	$	(17,481)	$	1,028,371	$	—

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	200,735	$	7	$	(7,109)	$	193,633		—
U.S. Treasuries		1,154,879		111		(15,680)		1,139,310		—
Total	$	1,355,614	$	118	$	(22,789)	$	1,332,943	$	—

The following table summarizes the fair value and gross unrealized losses on securities classified as available-for-sale, and length of time that the individual securities have been in a continuous loss position as of March 31, 2023 (in thousands):

	March 31, 2023
	Less than 12 months				12 months or greater				Total
	Fair Value of				Fair Value of				Fair Value of
	Investments with		Gross Unrealized		Investments with		Gross Unrealized		Investments with		Gross Unrealized
	Unrealized Losses		Losses		Unrealized Losses		Losses		Unrealized Losses		Losses
Corporate bonds	$	8,794	$	(226)	$	141,875	$	(5,730)	$	150,669	$	(5,956)
U.S. Treasuries		24,884		(94)		307,587		(11,431)		332,471		(11,525)
Total available-for-sale securities	$	33,678	$	(320)	$	449,462	$	(17,161)	$	483,140	$	(17,481)

We regularly review available-for-sale securities for declines in fair values that we determine to be credit related. In order to determine whether an allowance for credit losses was required, we considered factors such as whether amounts related to securities have become uncollectible, whether we intend to sell a security, and whether it is more likely than not that we will be required to sell a security prior to recovery. The Company also reviewed the declines in market value

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related to our available-for-sale securities and determined that these declines were due to fluctuations in interest rates. As of March 31, 2023, the Company did not have an allowance for credit losses related to available-for-sale securities.

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$		$	(2,245)	$	68,012
Exchange traded mutual funds		76,000				(4,101)		71,899
Total	$	146,257	$	—	$	(6,346)	$	139,911

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$	—	$	(2,620)	$	67,637
Exchange traded mutual funds		75,999		—		(8,800)		67,199
Total	$	146,256	$	—	$	(11,420)	$	134,836

A summary of the amortized cost and fair value of investments classified as available-for-sale, by contractual maturity, as of March 31, 2023 and December 31, 2022 was as follows (in thousands):

	March 31, 2023				December 31, 2022
	Amortized		Fair		Amortized		Fair
Maturity:	Cost		Value		Cost		Value
Less than 12 months	$	817,369	$	810,898	$	1,045,120	$	1,039,333
12 months or greater		228,362		217,473		310,494		293,610
Total	$	1,045,731	$	1,028,371	$	1,355,614	$	1,332,943

Accrued interest income was $2.4 million and $3.0 million at March 31, 2023 and December 31, 2022, respectively, and included within the balance for prepaid expenses and other current assets in the unaudited interim condensed consolidated balance sheets.

Equity Method Investments

As of March 31, 2023 and December 31, 2022, the Company accounted for the following investments in the investee’s common stock under the equity method, which are included in the investments in non-consolidated entities and non-marketable equity securities on the interim unaudited condensed consolidated balance sheets (amounts in thousands):

		As of March 31, 2023			As of December 31, 2022
	Formation	Common Stock	Carrying		Common Stock	Carrying
Investee	Date	Ownership %	Value		Ownership %	Value
HyVia	Q2 2021	50%	$	29,722	50%	$	11,281
AccionaPlug S.L.	Q4 2021	50%		1,941	50%		2,225
SK Plug Hyverse	Q1 2022	49%		26,719	49%		8,937
			$	58,382		$	22,443

17.  Operating and Finance Lease Liabilities

As of March 31, 2023, the Company had operating leases, as lessee, primarily associated with sale/leaseback transactions that are partially secured by restricted cash, security deposits and pledged escrows (see also Note 1, “Nature

24

of Operations”) as summarized below.  These leases expire over the next one to nine years. Minimum rent payments under operating leases are recognized on a straight-line basis over the term of the lease.  

Leases contain termination clauses with associated penalties, the amount of which cause the likelihood of cancellation to be remote.  At the end of the lease term, the leased assets may be returned to the lessor by the Company, the Company may negotiate with the lessor to purchase the assets at fair market value, or the Company may negotiate with the lessor to renew the lease at market rental rates.  No residual value guarantees are contained in the leases.  No financial covenants are contained within the lease; however, the lease contains customary operational covenants such as the requirement that the Company properly maintain the leased assets and carry appropriate insurance. The leases include credit support in the form of either cash, collateral or letters of credit.  See Note 19, “Commitments and Contingencies” for a description of cash held as security associated with the leases.    

The Company has finance leases associated with its property and equipment in Latham, New York and at fueling customer locations.  The fair value of this finance obligation approximated the carrying value as of March 31, 2023.

Future minimum lease payments under operating and finance leases (with initial or remaining lease terms in excess of one year) as of March 31, 2023 were as follows (in thousands):

			Finance		Total
	Operating Lease		Lease		Lease
	Liability		Liability		Liabilities
Remainder of 2023	$	64,464	$	8,712	$	73,176
2024		85,832		11,476		97,308
2025		81,119		14,387		95,506
2026		71,088		11,529		82,617
2027		56,978		8,252		65,230
2028 and thereafter		102,913		1,330		104,243
Total future minimum payments		462,394		55,686		518,080
Less imputed interest		(134,595)		(7,660)		(142,255)
Total	$	327,799	$	48,026	$	375,825

Rental expense for all operating leases was $21.9 million and $14.0 million for the three months ended March 31, 2023 and 2022, respectively.

At March 31, 2023 and December 31, 2022, security deposits associated with sale/leaseback transactions were $6.0 million and $5.8 million, respectively, and were included in other assets in the unaudited interim condensed consolidated balance sheets.

At March 31, 2023 and December 31, 2022, the right of use assets associated with finance leases was $62.4 million and $58.4 million, respectively. The accumulated depreciation for these right of use assets was $5.7 million and $4.7 million at March 31, 2023 and December 31, 2022, respectively.

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Other information related to the operating leases are presented in the following table:

	Three months ended		Three months ended
	March 31, 2023		March 31, 2022
Cash payments (in thousands)	$	21,648	$	13,547
Weighted average remaining lease term (years)		2.66		5.46
Weighted average discount rate		11.3%		10.9%

Finance lease costs include amortization of the right of use assets (i.e., depreciation expense) and interest on lease liabilities (i.e., interest and other expense, net in the consolidated statement of operations), and were $1.1 million and $0.8 million for the three months ended March 31, 2023, respectively.

18. Finance Obligation

The Company has sold future services to be performed associated with certain sale/leaseback transactions and recorded the balance as a finance obligation.  The outstanding balance of this obligation at March 31, 2023 was $324.9 million, $59.9 million and $265.0 million of which was classified as short-term and long-term, respectively, on the accompanying unaudited interim condensed consolidated balance sheet. The outstanding balance of this obligation at December 31, 2022 was $312.1 million, $55.4 million and $256.6 million of which was classified as short-term and long-term, respectively. The amount is amortized using the effective interest method. Interest expense recorded related to finance obligations for the three months ended March 31, 2023 and 2022 was $9.2 million and $6.7 million, respectively. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

In prior periods, the Company entered into sale/leaseback transactions that were accounted for as financing transactions and reported as part of finance obligations. The outstanding balance of finance obligations related to sale/leaseback transactions at March 31, 2023 was $17.9 million, $3.5 million and $14.4 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheet.  The outstanding balance of this obligation at December 31, 2022 was $17.2 million, $3.5 million and $13.7 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheets. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

Future minimum payments under finance obligations notes above as of March 31, 2023 were as follows (in thousands):

					Total
	Sale of future		Sale/leaseback		Finance
	revenue - debt		financings		Obligations
Remainder of 2023	$	70,471	$	3,591	$	74,062
2024		93,961		10,589		104,550
2025		88,705		1,686		90,391
2026		71,333		1,686		73,019
2027		54,831		1,686		56,517
2028 and thereafter		44,364		1,955		46,319
Total future minimum payments		423,665		21,193		444,858
Less imputed interest		(98,767)		(3,277)		(102,044)
Total	$	324,898	$	17,916	$	342,814

19.  Commitments and Contingencies

Restricted Cash

In connection with certain of the above noted sale/leaseback agreements, cash of $445.2  million and $383.7 million was required to be restricted as security as of March 31, 2023 and December 31, 2022, respectively, which

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restricted cash will be released over the lease term. As of March 31, 2023 and December 31, 2022, the Company also had certain letters of credit backed by security deposits totaling $363.2 million and $379.6 million, respectively, of which $340.5 million and $354.0 million are security for the above noted sale/leaseback agreements, respectively, and $22.7 million and $25.6 million are customs related letters of credit, respectively.

As of both March 31, 2023 and December 31, 2022, the Company had $75.5 million held in escrow related to the construction of certain hydrogen plants.

The Company also had $5.0 million, $1.2 million, and $1.8 million of consideration held by our paying agent in connection with the Applied Cryo, Joule, and CIS acquisitions, respectively, reported as restricted cash as of March 31, 2023, with a corresponding accrued liability on the Company’s unaudited interim condensed consolidated balance sheet. Additionally, the Company had $6.5 million and $10.8 million in restricted cash as collateral resulting from the Frames acquisition as of March 31, 2023 and December 31, 2022, respectively.  

Litigation

Legal matters are defended and handled in the ordinary course of business. Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.  The Company has not recorded any accruals related to any legal matters.  

As previously disclosed, several actions were filed in the U.S. District Courts for the Southern District of New York and for the Central District of California asserting claims under the federal securities laws against the Company and two of its senior officers, Mr. Marsh and Mr. Middleton. On July 22, 2021, the court consolidated those actions into In re Plug Power, Inc. Securities Litigation, No. 1:21-cv-2004, pending in the U.S. District Court for the Southern District of New York (the “Securities Action”) and appointed a lead plaintiff. On October 6, 2021, lead plaintiff filed a consolidated amended complaint asserting claims on behalf of a putative class composed of all persons who purchased or otherwise acquired the Company’s securities between November 9, 2020 and March 16, 2021 (the “Amended Complaint”). The Amended Complaint asserted a claim against all defendants for alleged violations of Section 10(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b5 promulgated thereunder and a claim under Section 20(a) of the Exchange Act against Mr. Marsh and Mr. Middleton as alleged controlling persons. The Amended Complaint alleged that defendants made “materially false” statements concerning (1) adjusted EBITDA; (2) fuel delivery and research and development expenses; (3) costs related to provision for loss contracts; (4) gross losses; and (5) the effectiveness of internal controls and procedures (the “accounting-related statements”), and that these alleged misstatements caused losses and damages for members of the alleged class. On December 6, 2021, defendants filed a motion to dismiss the Amended Complaint. In an opinion and order entered on September 29, 2022, the court granted defendants’ motion to dismiss the Amended Complaint in its entirety but permitted the lead plaintiff to further amend the complaint. On November 21, 2022, the lead plaintiff filed a second amended complaint purporting to assert claims under the same provisions against the same defendants on behalf of the same alleged class of purchasers of the Company’s securities (the “Second Amended Complaint”). The Second Amended Complaint largely repeated the allegations in the Amended Complaint but, in addition, alleged that various public statements during the alleged class period were false or misleading because they allegedly failed to disclose the status of discussions and considerations relating to warrants to purchase the Company’s common stock that were granted to a customer in connection with a commercial agreement. The defendants filed a motion to dismiss the Second Amended Complaint in its entirety on January 12, 2023.

On March 31, 2021, Junwei Liu, an alleged Company stockholder, derivatively and on behalf of nominal defendant Plug, filed a complaint in the U.S. District Court for the Southern District of New York against certain Company directors and officers (the “Derivative Defendants”), captioned Liu v. Marsh et al., Case No. 1:21-cv-02753 (S.D.N.Y.) (the “Liu Derivative Complaint”). The Liu Derivative Complaint alleges that, between November 9, 2020 and March 1, 2021, the Derivative Defendants “made, or caused the Company to make, materially false and misleading statements concerning Plug Power’s business, operations, and prospects” by “issu[ing] positive financial information and optimistic guidance, and made assurances that the Company’s internal controls were effective,” when, “[i]n reality, the Company’s internal controls suffered from material deficiencies that rendered them ineffective.” The Liu Derivative Complaint asserts claims for (1) breach of fiduciary duties, (2) unjust enrichment, (3) abuse of control, (4) gross mismanagement, (5) waste

27

of corporate assets, and (6) contribution under Sections 10(b) and 21D of the Exchange Act (as to the named officer defendants). The Liu Derivative Complaint seeks a judgment “[d]eclaring that Plaintiff may maintain this action on behalf of Plug”; “[d]eclaring that the [Derivative] Defendants have breached and/or aided and abetted the breach of their fiduciary duties”; “awarding to Plug Power the damages sustained by it as a result of the violations” set forth in the Liu Derivative Complaint, “together with pre-judgment and post-judgment interest thereon”; “[d]irecting Plug Power and the [Derivative] Defendants to take all necessary actions to reform and improve Plug Power’s corporate governance and internal procedures to comply with applicable laws”; and “[a]warding Plaintiff the costs and disbursements of this action, including reasonable attorneys’ and experts’ fees, costs, and expenses”; and “[s]uch other and further relief as the [c]ourt may deem just and proper.”

On April 5, 2021, alleged Company stockholders Elias Levy and Camerohn X. Withers, derivatively and on behalf of nominal defendant Plug, filed a complaint in the U.S. District Court for the Southern District of New York against the Derivative Defendants named in the Liu Derivative Complaint, captioned Levy et al. v. McNamee et al., Case No. 1:21-cv-02891 (S.D.N.Y.) (the “Levy Derivative Complaint”). The Levy Derivative Complaint alleges that, from November 9, 2020 to April 5, 2021, the Derivative Defendants “breached their duties of loyalty and good faith” by failing to disclose “(1) that the Company would be unable to timely file its 2020 annual report due to delays related to the review of classification of certain costs and the recoverability of the right to use assets with certain leases; (2) that the Company was reasonably likely to report material weaknesses in its internal control over financial reporting; and (3) that, as a result of the foregoing, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis.” The Levy Derivative Complaint asserts claims for (1) breach of fiduciary duty (as to the named director defendants), (2) unjust enrichment (as to certain named director defendants), (3) waste of corporate assets (as to the named director defendants), and (4) violations of Sections 10(b) and 21D of the Exchange Act (as to the named officer defendants). The Levy Derivative Complaint seeks a judgment “declaring that Plaintiffs may maintain this action on behalf of the Company”; finding the Derivative Defendants “liable for breaching their fiduciary duties owed to the Company”; directing the Derivative Defendants “to take all necessary actions to reform and improve the Company’s corporate governance, risk management, and internal operating procedures to comply with applicable laws”; “awarding damages to the Company for the harm the Company suffered as a result of Defendants’ wrongful conduct”; “awarding damages to the Company for [the named officer Derivative Defendants’] violations of Sections 10(b) and 21D of the Exchange Act”; “awarding Plaintiffs the costs and disbursements of this action, including attorneys’, accountants’, and experts’ fees”; and “awarding such other and further relief as is just and equitable.” The Liu Derivative Complaint and the Levy Derivative Complaint have been consolidated in In re Plug Power Derivative Litigation, Lead Case No. 1:21-cv-02753-ER and, by stipulation approved by the Court, the cases have been stayed pending the resolution of the motion to dismiss in the Securities Class action.

On May 13, 2021, alleged Company stockholder Romario St. Clair, derivatively and on behalf of nominal defendant Plug, filed a complaint in the Supreme Court of the State of New York, County of New York against the derivative defendants named in the Liu derivative Complaint, captioned St. Clair v. Plug Power Inc. et al., Index No. 653167/2021 (N.Y. Sup. Ct., N.Y. Cty.)(the “St. Clair Derivative Complaint”). The St. Clair derivative Complaint alleges that, for approximately two years from March 13, 2019 onwards, the company made a number of improper statements that “failed to disclose and misrepresented the following material, adverse facts, which the [derivative] defendants knew, consciously disregarded, or were reckless in not knowing”, including: “(a) that the Company was experiencing known but undisclosed material weaknesses in its internal controls over financial reporting; (b) the Company was overstating the carrying amount of certain right of use assets and finance obligations associated with leases; (c) the Company was understating its loss accrual on certain service contracts; (d) the Company would need to take impairment charges relating to certain long-lived assets; (e) the Company was improperly classifying research and development costs versus costs of goods sold; and (f) the Company would be unable to file its annual Report for the 2020 fiscal year due to these errors.” The St. Clair Derivative Complaint asserts claims for (1) breach of fiduciary and (2) unjust enrichment. The St. Clair Derivative Complaint seeks a judgment “for the amount of damages sustained by the Company as a result of the defendants’ breaches of fiduciary duties and unjust enrichment”; “[d]irecting Plug Power to take all necessary actions to reform and improve its corporate governance and internal procedures to comply with applicable laws”;“[e]xtraordinary equitable and/or injunctive relief as permitted by law, equity, and state statutory provisions”; [a]warding to Plug Power restitution from defendants, and each of them, and ordering disgorgement of all profits, benefits, and other compensation obtained by the defendants”; [a]warding to plaintiff the costs and disbursements of the action, including reasonable attorneys’ fees, accountants’ and experts’ fees, costs, and expenses”; and “[g]ranting such other and further relief as the

28

[c]ourt deems just and proper.” By stipulation approved by the Court, the case has been stayed pending the resolution of the motion to dismiss in the Securities Class action.

On June 13, 2022, alleged Company stockholder Donna Max, derivatively on behalf of the Company as nominal defendant, filed a complaint in the United States District Court for the District of Delaware against the derivative defendants named in the Liu Derivative Complaint, captioned Max v. Marsh, et. al., Case No. 1:22-cv-00781(D. Del.) (the “Max Derivative Complaint”). The Max Derivative Complaint alleges that, for the years 2018, 2019 and 2020, the defendants did not “assure that a reliable system of financial controls was in place and functioning effectively”; “failed to disclose errors in the Company's accounting primarily relating to (i) the reported book value of right of use assets and related finance obligations, (ii) loss accruals for certain service contracts, (iii) the impairment of certain long-lived assets, and (iv) the classification of certain expenses previously included in research and development costs”; and that certain defendants traded Company stock at “artificially inflated stock prices.” The Max Derivative Complaint asserts claims for (1) breach of fiduciary against all defendants; (2) breach of fiduciary duty for insider trading against certain defendants; and (3) contribution under Sections 10(b) and 21D of the Exchange Act against certain defendants. The Max Derivative Complaint seeks an award “for the damages sustained by [the Company]” and related relief.  By stipulation approved by the Court, the case has been stayed pending the resolution of the motion to dismiss in the Securities Action.

On June 29, 2022, alleged Company stockholder Abbas Khambati, derivatively on behalf of the Company as nominal defendant, filed a complaint in the Court of Chancery in the State of Delaware against the derivative defendants named in the Liu Derivative Complaint and Gerard A. Conway, Jr. and Keith Schmid, captioned Khambati v. McNamee, et. al., C.A. No. 2022-05691(Del. Ch.) (the “Khambati Derivative Complaint”). The Khambati Derivative Complaint alleges that the defendants “deceive[d] the investing public, including stockholders of Plug Power, regarding the Individual Defendants’ management of Plug Power’s operations and the Company’s compliance with the SEC's accounting rules”; “facilitate[d” certain defendants’ sales of “their personally held shares while in possession of material, nonpublic information”; and “enhance[d] the Individual Defendants’ executive and directorial positions at Plug Power and the profits, power, and prestige that the Individual Defendants enjoyed as a result of holding these positions.” The Khambati Derivative Complaint asserts claims for (1) breach of fiduciary; and (2) disgorgement and unjust enrichment. The Khambati Derivative Complaint seeks an award “for the damages sustained by [the Company] as a result of the breaches” alleged or “disgorgement or restitution”; “disgorgement of insider trading profits” and “all profits, benefits and other compensation obtained by [defendants’] insider trading and further profits flowing therefrom”; an order “[d]irecting the Company to take all necessary actions to reform and improve its corporate governance and internal procedures”; and related relief.

On July 19, 2022, alleged Company stockholder Anne D. Graziano, as Trustee of the Anne D. Graziano Revocable Living Trust, derivatively on behalf of the Company as nominal defendant, filed a complaint in the Court of Chancery in the State of Delaware against the derivative defendants named in the Khambati Derivative Complaint, captioned Graziano v. Marsh, et. al., C.A. No. 2022-0629 (Del. Ch.) (the “Graziano Derivative Complaint”). The Graziano Derivative Complaint alleges that the director defendants (i) “either knowingly or recklessly issued or caused the Company to issue the materially false and misleading statements” concerning “certain critical accounting issues”; (ii) “willfully ignored, or recklessly failed to inform themselves of, the obvious problems with the Company’s internal controls, practices, and procedures, and failed to make a good faith effort to correct the problems or prevent their recurrence”; (iii) the members of the Audit Committee failed “to prevent, correct, or inform the Board of the issuance of material misstatements and omissions regarding critical accounting issues and the adequacy of the Company’s internal controls”; (iv) “received payments, benefits, stock options, and other emoluments by virtue of their membership on the Board and their control of the Company”; (v) violated the Company’s Code of Conduct because they knowingly or recklessly engaged in and participated in making and/or causing the Company to make the materially false and misleading statements; and (vi) certain defendants “sold large amounts of Company stock while it was trading at artificially inflated prices.” The Graziano Derivative Complaint asserts claims for (1) breach of fiduciary; (2) breach of fiduciary duty against certain defendants for insider trading; (3) unjust enrichment; (4) aiding and abetting breach of fiduciary duty; and (5) waste of corporate assets. The Graziano Derivative Complaint seeks an award of “the amount of damages sustained by the Company”; seeks an order “[d]irecting Plug Power to take all necessary actions to reform and improve its corporate governance and internal procedures to comply with applicable laws and to protect Plug Power and its stockholders from a repeat of the damaging events described herein”; and related relief. The parties to the Graziano Derivative Complaint and Khambati Derivative Complaint have been consolidated in In re Plug Power, Inc. Stockholder Derivative Litigation, Consolidated C.A. No.

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2022-0569 and, by stipulation approved by the court, the cases have been stayed pending the resolution of the motion to dismiss in the Securities Action.

On April 12, 2023, an action was filed in the U.S. District Court for the District of Delaware asserting claims under the federal securities laws against the Company and four of its senior officers, Mr. Marsh, Mr. Middleton, Mr. Mindnich, and Mr. Hull, captioned Melton v. Plug Power Inc et al., Case No. 1:23-cv-00409 (D. Del.). The complaint asserts claims on behalf of a putative class composed of all persons who purchased or otherwise acquired the Company’s securities between August 9, 2022 and March 1, 2023.  The complaint asserted a claim against all defendants for alleged violations of Section 10(b) of the Exchange Act and Rule 10b5 promulgated thereunder and a claim under Section 20(a) of the Exchange Act against Mr. Marsh, Mr. Middleton, Mr. Mindnich, and Mr. Hull as alleged controlling persons. The complaint alleged that defendants made “materially false and/or misleading statements” about the Company’s business and operations, including that “the Company was unable to effectively manage its supply chain and product manufacturing, resulting in reduced revenues and margins, increased inventory levels, and several large deals being delayed until at least 2023, among other issues.” Under the Private Securities Litigation Reform Act of 1995, applications to serve as lead plaintiff(s) are due to be filed on or before June 12, 2023.

As previously disclosed, two lawsuits were filed against the Company and other companies in the 9^th District Court, Rapides Parish, Louisiana, arising from the previously disclosed May 2018 accident involving a forklift powered by the Company's fuel cell at a Procter & Gamble facility in Louisiana. Additional defendants included Structural Composite Industries, Deep South Equipment Company, Air Products and Chemicals Inc., Hyster-Yale Group. Westport Industries and Quality Thermistor, Inc. The first suit, Lott, et al v. Plug Power, et al, was filed by a number of individual plaintiffs alleging personal injury claims. Procter & Gamble intervened in that suit to recover workers compensation benefits paid to or for the employees/dependents. Procter & Gamble filed a separate suit for property damage, business interruption. The Company aggressively defended both lawsuits. The Lott case was settled in April 2022 on terms that were extremely favorable for the company.  An agreement to settle the separate P&G suit was recently reached, also on terms that are extremely favorable for the Company. Both settlements are funded by the Company's commercial liability insurer, and the amounts are substantially below the policy limits.

On May 2, 2023, a lawsuit entitled Jacob Thomas, and JTurbo Engineering & Technology, LLC. v. Joule Processing, LLC. and Plug Power Inc., Case No. 4:23-cv-01615, was filed in the United States District Court for the Southern District of Texas against the Company.  The complaint alleges misappropriation of trade secrets under both the federal Defend Trade Secrets Act of 2016, 18 U.S.C. § 1836, and the Texas Uniform Trade Secrets Act, three breach of contract claims, tort claims and a claim for unfair competition under Texas law. The Company finds all allegations to be lacking in substance and merit. As appropriate, the Company intends to vigorously defend itself against the plaintiffs and exercise all recourse available in a court of law.  

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to credit risk consist principally of cash, cash equivalents, restricted cash, accounts receivable and marketable securities. Cash and restricted cash are maintained in accounts with financial institutions, which, at times may exceed the Federal depository insurance coverage of $0.3 million. The Company has not experienced losses on these accounts and management believes, based upon the quality of the financial institutions, that the credit risk with regard to these deposits is not significant. The Company’s available-for-sale securities consists primarily of investments in U.S. Treasury securities and short-term high credit quality corporate debt securities.  Equity securities are comprised of fixed income and equity market index mutual funds.

Concentrations of credit risk with respect to receivables exist due to the limited number of select customers with whom the Company has commercial sales arrangements. To mitigate credit risk, the Company performs appropriate evaluation of a prospective customer’s financial condition.

At March 31, 2023, one customer comprised 10% of the total accounts receivable balance. At December 31, 2022, one customer comprised approximately 24.9% of the total accounts receivable balance.

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For purposes of assigning a customer to a sale/leaseback transaction completed with a financial institution, the Company considers the end user of the assets to be the ultimate customer. For the three months ended March 31, 2023, 25.5% of total consolidated revenues were associated with two customers. For the three months ended March 31, 2022, 67.0% of total consolidated revenues were associated with five customers.

20. Employee Benefit Plans

2011 and 2021 Stock Option and Incentive Plan

The Company has issued stock-based awards to employees and members of its Board of Directors (the “Board”) consisting of stock options and restricted stock and restricted stock unit awards. The Company accounts for all stock-based awards to employees and members of the Board as compensation costs in the consolidated financial statements based on their fair values measured as of the date of grant. These costs are recognized over the requisite service period. Stock-based compensation costs recognized, excluding the Company’s matching contributions of $3.0 million to the Plug Power Inc. 401(k) Savings & Retirement Plan and quarterly Board compensation, were $40.2 million and $40.8 million for the three months ended March 31, 2023 and March 31, 2022, respectively. The methods and assumptions used in the determination of the fair value of stock-based awards are consistent with those described in our 2022 Form 10-K.

The components and classification of stock-based compensation expense, excluding the Company’s matching contributions to the Plug Power Inc. 401(k) Savings & Retirement Plan and quarterly Board compensation, were as follows (in thousands):

	Three months ended
	March 31, 2023		March 31, 2022
Cost of sales	$	2,677	$	1,798
Research and development		2,283		1,722
Selling, general and administrative		35,221		37,248
	$	40,181	$	40,768

Option Awards

The Company issues options that are time and performance-based awards. All option awards are determined to be classified as equity awards.

Service Stock Options Awards

The following table reflects the service stock option activity for the three months ended March 31, 2023:

					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price		Terms		Value
Options outstanding at December 31, 2022	$	12,078,269	$	14.34	$	7.57	$	42,835
Granted		94,550		15.44
Exercised		(124,269)		5.43
Forfeited		(89,017)		22.97
Options outstanding at March 31, 2023	$	11,959,533	$	14.38	$	7.34	$	38,278
Options exercisable at March 31, 2023		6,879,596		9.71		6.24		37,976
Options unvested at March 31, 2023	$	5,079,937	$	20.70	$	8.83	$	302

The weighted average grant-date fair value of the service stock options granted during the three months ended March 31, 2023 and 2022 was $10.48 and $15.34, respectively. The total intrinsic fair value of service stock options exercised during the three months ended March 31, 2023 and 2022 was $1.3 million and $1.1 million, respectively. The

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total fair value of the service stock options that vested during the three months ended March 31, 2023 and 2022 was approximately $7.5 million and $5.6 million, respectively.

Compensation cost associated with service stock options represented approximately $8.2 million and $5.9 million of the total share-based payment expense recorded for the three months ended March 31, 2023 and 2022, respectively. As of March 31, 2023 and 2022, there was approximately $51.4 million and $47.0 million, respectively, of unrecognized compensation cost related to service stock option awards to be recognized over the weighted average remaining period of 1.94 years.

Performance Stock Option Awards

The following table reflects the Performance Stock Option activity for the three month ended March 31, 2023.

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Shares	Price		Terms	Value
Options outstanding at December 31, 2022	15,520,000	$	26.87	5.81	$	—
Options exercisable at December 31, 2022	1,391,000		26.92	5.73		—
Options unvested at December 31, 2022	14,129,000	$	26.86	5.82	$	—
Options outstanding at March 31, 2023	15,520,000	$	26.87	5.57	$	—
Options exercisable at March 31, 2023	1,391,000		26.92	5.48		—
Options unvested at March 31, 2023	14,129,000	$	26.86	5.58	$	—

There were no performance stock options granted during the three months ended March 31, 2023 or 2022. There were no performance stock options exercised during the three months ended March 31, 2023 or 2022. There were no performance stock options that vested during the three months ended March 31, 2023 or 2022.

As of March 31, 2023, there were 2,782,000 unvested stock options for which the employee requisite service period has not been rendered but are expected to vest. The aggregate intrinsic value of these unvested stock options is $0 as of March 31, 2023. The weighted average remaining contractual term of these unvested stock options was 5.48 years as of March 31, 2023.

Compensation cost associated with performance stock options represented approximately $17.4 million and $25.1 million of the total share-based payment expense recorded for the three months ended March 31, 2023 and 2022, respectively. As of March 31, 2023, there was approximately $53.1 million of unrecognized compensation cost related to performance stock option awards to be recognized over the weighted average remaining period of 1.63 years.

Restricted Common Stock and Restricted Stock Unit Awards

The Company recorded expense associated with its restricted common stock and restricted stock unit awards of approximately $14.6 million and $9.8 million for the three months ended March 31, 2023 and 2022, respectively. Additionally, as of March 31, 2023, there was $95.5 million of unrecognized compensation cost related to restricted stock and restricted common stock unit awards to be recognized over the weighted average period of 1.98 years. As of March 31, 2022, there was $83.7 million of unrecognized compensation cost related to restricted common stock and restricted stock unit awards to be recognized over the weighted average period of 2.1 years.

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A summary of restricted stock and restricted stock unit activity for the three months ended March 31, 2023 is as follows (in thousands except share amounts):

		Weighted		Aggregate
		Average Grant Date		Intrinsic
	Shares	Fair Value		Value
Unvested restricted common stock and restricted stock units at December 31, 2022	6,276,376	$	21.56	$	77,639
Granted	94,550		15.44		—
Vested	(409,431)		32.97		—
Forfeited	(73,482)		22.70		—
Unvested restricted common stock and restricted stock units at March 31, 2023	5,888,013	$	20.65	$	67,968

The weighted average grant-date fair value of the restricted common stock and restricted stock unit awards granted during the three months ended March 31, 2023 and 2022, was $15.44 and $23.86, respectively. The total fair value of restricted shares of common stock and restricted stock unit awards that vested for the three months ended March 31, 2023 and 2022 was $13.5 million and $3.9 million, respectively.

401(k) Savings & Retirement Plan

The Company issued 219,970 shares of common stock and 96,539 shares of common stock pursuant to the Plug Power Inc. 401(k) Savings & Retirement Plan during the three months ended March 31, 2023 and 2022, respectively.

The Company’s expense for this plan was approximately $3.0 million and $2.2 million for the three months ended March 31, 2023 and 2022, respectively.

Non-Employee Director Compensation

The Company granted 10,316 shares of common stock and 3,290 shares of common stock to non-employee directors as compensation for the three months ended March 31, 2023 and 2022, respectively. All common stock issued is fully vested at the time of issuance and is valued at fair value on the date of issuance. The Company’s share-based compensation expense in connection with non-employee director compensation was approximately $0.1 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively.

21. Accrued Expenses

Accrued expenses at March 31, 2023 and December 31, 2022 consisted of (in thousands):

	March 31,		December 31,
	2023		2022
Accrued payroll and compensation related costs	$	19,887	$	18,231
Accrual for capital expenditures		31,346		53,089
Accrued accounts payable		93,532		53,899
Accrued sales and other taxes		9,718		15,112
Accrued interest		2,271		421
Accrued other		11,000		15,678
Total	$	167,754	$	156,430

22. Segment Reporting

Our organization is managed from a sales perspective on the basis of “go-to-market” sales channels, emphasizing shared learning across end user applications and common supplier/vendor relationships. These sales channels are structured to serve a range of customers for our products and services. As a result of this structure, we concluded that we

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have one operating and reportable segment — the design, development and sale of fuel cells and hydrogen producing equipment. Our chief executive officer was identified as the chief operating decision maker (CODM). All significant operating decisions made by management are largely based upon the analysis of Plug Power Inc. on a total company basis.

	Revenues				Long-Lived Assets as of
	Three Months Ended				Three Months Ended
	March 31, 2023		March 31, 2022		March 31, 2023		December 31, 2022
North America	$	161,807	$	113,678	$	1,382,681	$	1,209,900
Europe		40,153		—		18,459		13,215
Asia		3,255		—		—		—
Other		5,071		27,126		—		—
Total	$	210,286	$	140,804	$	1,401,140	$	1,223,115

23. Subsequent Events

We have evaluated events as of May 9, 2023 and have not identified any subsequent events.

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

The following discussion should be read in conjunction with our accompanying unaudited interim condensed consolidated financial statements and notes thereto included within this Quarterly Report on Form 10-Q, and our audited and notes thereto included in our 2022 Form 10-K. In addition to historical information, this Quarterly Report on Form 10-Q and the following discussion contain statements that are not historical facts and are considered forward-looking within the meaning of Section 27A of the Securities Act, and Section 21E of the Exchange Act. These forward-looking statements contain projections of our future results of operations or of our financial position or state other forward-looking information. In some cases, you can identify these statements by forward-looking words such as “believe,” “could,” “continue,” “estimate,” “expect,” “intend,” “may,” “should,” “will,” “would,” “plan,” “project” or the negative of such words or other similar words or phrases. We believe that it is important to communicate our future expectations to our investors. However, there may be events in the future that we are not able to accurately predict or control and that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements. Investors are cautioned not to unduly rely on forward-looking statements because they involve risks and uncertainties, and actual results may differ materially from those discussed as a result of various factors, including, but not limited to:

● the risk that we continue to incur losses and might never achieve or maintain profitability;

● the risk that we will need to raise additional capital to fund our operations and such capital may not be available to us;

● the risks associated with global economic uncertainty, including inflationary pressures, fluctuating interest rates, bank failure, and supply chain disruptions;

● the risk that we may not be able to expand our business or manage our future growth effectively;

● the risk that delays in or not completing our product development and hydrogen plant construction goals may adversely affect our revenue and profitability;

● the risk that we may be unable to successfully pursue, integrate, or execute upon our new business ventures.

● the risk of dilution to our stockholders and/or stock price should we need to raise additional capital;

● the risk that our lack of extensive experience in manufacturing and marketing of certain of our products may impact our ability to manufacture and market products on a profitable and large-scale commercial basis;

● the risk that unit orders may not ship, be installed and/or converted to revenue, in whole or in part;

● the risk that a loss of one or more of our major customers, or if one of our major customers delays payment of or is unable to pay its receivables, a material adverse effect could result on our financial condition;

● the risk that a sale or issuance of a significant number of shares of stock could depress the market price of our common stock;

● the risk that our convertible senior notes, if settled in cash, could have a material adverse effect on our financial results;

● the risk that our convertible note hedges may affect the value of our convertible senior notes and our common stock;

● the risk that negative publicity related to our business or stock could result in a negative impact on our stock value and profitability;

● the risk of potential losses related to any product liability claims or contract disputes;

● the risk of loss related to an inability to remediate the material weaknesses identified in internal control over financial reporting as of December 31, 2022 and 2021, or inability to otherwise maintain an effective system of internal control over financial reporting;

● our ability to attract and maintain key personnel;

● the risks related to the use of flammable fuels in our products;

● the risk that pending orders may not convert to purchase orders, in whole or in part;

● the cost and timing of developing, marketing, and selling our products;

● the risks involved with participating in joint ventures, including our ability or inability to execute our strategic growth plan through joint ventures;

● our ability to obtain financing arrangements to support the sale or leasing of our products and services to customers;

● our ability to achieve the forecasted revenue and costs on the sale of our products;

● the cost and availability of fuel and fueling infrastructures for our products;

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● the risks, liabilities, and costs related to environmental, health, and safety matters;

● the risk of elimination of government subsidies and economic incentives for alternative energy products;

● market acceptance of our products and services;

● our ability to establish and maintain relationships with third parties with respect to product development, manufacturing, distribution, and servicing, and the supply of key product components;

● the cost and availability of components and parts for our products;

● the risk that possible new tariffs could have a material adverse effect on our business;

● our ability to develop commercially viable products;

● our ability to reduce product and manufacturing costs;

● our ability to successfully market, distribute and service our products and services internationally;

● our ability to improve system reliability for our products;

● competitive factors, such as price competition and competition from other traditional and alternative energy companies;

● our ability to protect our intellectual property;

● the risk of dependency on information technology on our operations and the failure of such technology, including failure to effectively prevent, detect, and recover from security compromises or breaches, including cyber-attacks;

● the cost of complying with current and future federal, state and international governmental regulations;

● the expense and resources associated with being subject to legal proceedings and legal compliance;

● the risks associated with past and potential future acquisitions;

● the risks associated with geopolitical instability, including the conflict between Russia and Ukraine and growing tensions between U.S. and China and neighboring regions; and

● the volatility of our stock price.

The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance, including factors and risks discussed in the section titled “Risk Factors” included under Part I, Item 1A, in our 2022 Form 10-K and supplemented by Part II, Item 1A of this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time, and it is not possible for management to predict all such risk factors, nor can we assess the impact of all such risk factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from these contained in any forward-looking statements. While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. These forward-looking statements speak only as of the date on which the statements were made. Except as may be required by applicable law, we do not undertake or intend to update any forward-looking statements after the date of this Quarterly Report on Form 10-Q.

References in this Quarterly Report on Form 10-Q to “Plug,” the “Company,” “we,” “our” or “us” refer to Plug Power Inc., including as the context requires, its subsidiaries.

Overview

Plug is facilitating the paradigm shift to an increasingly electrified world by innovating cutting-edge hydrogen and fuel cell solutions. While we continue to develop commercially viable hydrogen and fuel cell product solutions, we have expanded our offerings to support a variety of commercial operations that can be powered with green hydrogen. We provide electrolyzers that allow customers — such as refineries, producers of chemicals, steel, fertilizer and commercial refueling stations — to generate hydrogen on-site. We are focusing our efforts on (a) industrial mobility applications, including electric forklifts and electric industrial vehicles, at multi-shift high volume manufacturing and high throughput distribution sites where we believe our products and services provide a unique combination of productivity, flexibility, and environmental benefits; (b) stationary power systems that will support critical operations, such as data centers, microgrids, and generation facilities, in either a backup power or continuous power role and replace batteries, diesel generators or the grid for telecommunication logistics, transportation, and utility customers; and (c) production of hydrogen. Plug expects to support these products and customers with an ecosystem of vertically integrated products that produce, transport, store and handle, dispense, and use hydrogen for mobility and power applications.

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Our current products and services include:

GenDrive: GenDrive is our hydrogen fueled Proton Exchange Membrane (“PEM”) fuel cell system, providing power to material handling electric vehicles, including Class 1, 2, 3 and 6 electric forklifts, Automated Guided Vehicles, and ground support equipment.

GenFuel: GenFuel is our liquid hydrogen fueling delivery, generation, storage, and dispensing system.

GenCare: GenCare is our ongoing “Internet of Things”-based maintenance and on-site service program for GenDrive fuel cell systems, GenSure fuel cell systems, GenFuel hydrogen storage and dispensing products and ProGen fuel cell engines.

GenSure: GenSure is our stationary fuel cell solution providing scalable, modular PEM fuel cell power to support the backup and grid-support power requirements of the telecommunications, transportation, and utility sectors; GenSure High Power Fuel Cell Platform will support large scale stationary power and data center markets.

GenKey: GenKey is our vertically integrated “turn-key” solution combining either GenDrive or GenSure fuel cell power with GenFuel fuel and GenCare aftermarket service, offering complete simplicity to customers transitioning to fuel cell power.

ProGen: ProGen is our fuel cell stack and engine technology currently used globally in mobility and stationary fuel cell systems, and as engines in electric delivery vans.  This includes Plug’s membrane electrode assembly, a critical component of the fuel cell stack used in zero-emission fuel cell electric vehicle engines.

Electrolyzers: The design and implementation of 5 and 10MW electrolyzer systems that are modular, scalable hydrogen generators optimized for clean hydrogen production. Electrolyzers generate hydrogen from water using electricity and a special membrane and “green” hydrogen is generated by using renewable energy inputs, such as solar or wind power.

Liquefaction Systems: Plug’s 15 ton-per-day and 30 ton-per-day liquefiers are engineered for high efficiency, reliability, and operational flexibility — providing consistent liquid hydrogen to customers. This design increases plant reliability and availability while minimizing parasitic losses like heat leak and seal gas losses. 

Cryogenic Equipment: Engineered equipment including trailers and mobile storage equipment for the distribution of liquified hydrogen, oxygen, argon, nitrogen and other cryogenic gases.

We provide our products and solutions worldwide through our direct sales force, and by leveraging relationships with original equipment manufacturers (“OEMs”) and their dealer networks. We are currently targeting Asia, Australia, Europe, Middle East and North America for expansion in adoption. The European Union (the “EU”) has rolled out ambitious targets for the hydrogen economy as part of the EU strategy for energy integration and we are seeking to execute on our strategy to become one of the European leaders in the hydrogen economy. This includes a targeted account strategy for material handling, securing strategic partnerships with European OEMs, energy companies, utility leaders and accelerating our electrolyzer business. Our global strategy includes leveraging a network of integrators or contract manufacturers. Additionally, we have a joint venture with Niloco Hydrogen Holdings LLC, a wholly-owned subsidiary of Olin named “Hidrogenii”. Plug has been successful with acquisitions, strategic partnerships and joint ventures, and we plan to continue this mix.  

Part of our long-term plan includes Plug penetrating the European and Asian hydrogen market, on-road vehicle market, and large-scale stationary market. Plug’s formation of joint ventures with HyVia and AccionaPlug in Europe and SK Plug Hyverse in Asia not only support this goal but are expected to provide us with a more global footprint.

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We manufacture our commercially viable products in Latham, New York, Rochester, New York, Slingerlands, New York, Houston, Texas, Lafayette, Indiana, and Spokane, Washington, and support liquid hydrogen production and logistics in Charleston, Tennessee and Kingsland, Georgia.

Recent Developments

Cyber-security

In or around March 2023, an unauthorized actor accessed our computer network and executed a ransomware attack, resulting in the encryption of certain of our computer systems, including systems used to store proprietary and confidential data, and exfiltration of limited data sets.  Upon detection, we took immediate steps to contain, assess and remediate the incident, including engaging outside legal counsel and external forensic investigators. Necessarily, the Company has incurred costs in addressing the incident, including related to investigation, containment, restoration, and remediation. As a result of the unauthorized access, the Company’s employees experienced interruption of access to the internal network, which created temporary disruption of certain internal operations and automated processes. As of the date of the filing of this Quarterly Report on Form 10-Q, the Company has restored the affected systems and throughout this restoration period the Company’s business remained fully operational with no material disruption. Based on information available to date, we do not believe the ransomware event has had a material impact on our business.

COVID-19 Update

The COVID-19 pandemic caused significant transportation challenges for global suppliers and while we expect that these challenges will lessen over time, we continue to take proactive steps through our supply chain team to limit the impact of any such challenges on our business and we continue to work closely with our suppliers and transportation vendors to ensure availability of products and implement other cost savings initiatives.

Inflation, Material Availability and Labor Shortages

Most components essential to our business are generally available from multiple sources; however, we believe there are some component suppliers and manufacturing vendors, particularly those that supply materials in very limited supply worldwide, whose loss to us could have a material adverse effect upon our business and financial condition. We are mitigating these potential risks by introducing alternate system architectures that we expect will allow us to diversify our supply chain with multiple fuel cell, electrolyzer stack and air supply component vendors. In addition, we continue to invest in our supply chain to improve its resilience with a focus on automation, dual sourcing of critical components and localized manufacturing when feasible. We are also working closely with these vendors and other key suppliers on coordinated product introduction plans, product and sales forecasting, strategic inventories, and internal and external manufacturing schedules and levels; however, changes to our products designs or incorrect forecasting could present challenges to those strategies despite best efforts in leveraging supplier relationship and capabilities. Recent cost pressures from global energy prices and inflation have negatively impacted access to our key raw materials. In cases where we have single sourced suppliers (typically due to new technology and products) or there have been worldwide shortages due to global demand, we have worked to engineer alternatives in our product design or develop new supply sources while covering short- and medium-term risks with supply contracts, building up inventory, and development partnerships.  However, if we, or the industry or economy at large, were to experience a recession and the demand for our product decreases, then we may have a large stock of pre-purchased inventory that could be unused and aging for a period of time.

In January 2023, the Company entered into a strategic partnership with Johnson Matthey Hydrogen Technologies Limited, a subsidiary of Johnson Matthey PLC and a global leader in sustainable technologies (“JM”), pursuant to which JM will supply the Company catalyst coated membrane for use in the production of fuel cells as well as catalysts and membranes for use in the production of electrolyzers. In addition, the Company and JM intend to develop their existing and new technology and commercial products and co-invest in a manufacturing facility in the United States.

Additionally, we have observed an increasingly competitive labor market. Tight labor markets have resulted in labor inflation and longer times to fill open positions. Increased employee turnover, changes in the availability of our

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workers as well as labor shortages in our supply chain have resulted in, and could continue to result in, increased costs which could negatively affect our component or raw material purchasing abilities, and, in turn, our financial condition, results of operations, or cash flows.

Results of Operations

Our primary sources of revenue are from sales of fuel cell systems, related infrastructure and equipment, services performed on fuel cell systems and related infrastructure, Power Purchase Agreements (PPAs), and fuel delivered to customers. A certain portion of our sales result from acquisitions in legacy markets, which we are working to transition to renewable solutions. Revenue from sales of fuel cell systems, related infrastructure and equipment represents sales of our GenDrive units, GenSure stationary backup power units, cryogenic stationary and on road storage, electrolyzers and hydrogen fueling infrastructure. Revenue from services performed on fuel cell systems and related infrastructure represents revenue earned on our service and maintenance contracts and sales of spare parts. Revenue from PPAs primarily represents payments received from customers who make monthly payments to access the Company’s GenKey solution. Revenue associated with fuel delivered to customers represents the sale of hydrogen to customers that has been purchased by the Company from a third party or generated on site.

Provision for Common Stock Warrants

On August 24, 2022, the Company and Amazon entered into the 2022 Transaction Agreement, under which the Company concurrently issued to Amazon.com NV Investment Holdings LLC, a wholly owned subsidiary of Amazon, the Amazon Warrant, to acquire the Amazon Warrant Shares, subject to certain vesting events described below. The Company and Amazon entered into the 2022 Transaction Agreement in connection with a concurrent commercial arrangement under which Amazon agreed to purchase hydrogen fuel from the Company through August 24, 2029.

In 2017, in separate transactions, the Company issued to each of Amazon.com NV Investment Holdings LLC and Walmart, Inc. (“Walmart”) warrants to purchase shares of the Company’s common stock. The Company recorded a portion of the estimated fair value of the warrants as a reduction of revenue based upon the projected number of shares of common stock expected to vest under the warrants, the proportion of purchases by Amazon, Walmart and their affiliates within the period relative to the aggregate purchase levels required for vesting of the respective warrants, and the then-current fair value of the warrants. For the third tranche of the shares under Walmart’s warrant, the exercise price will be determined once the second tranche vests. For the third tranche of the Amazon Warrant Shares, see below for the exercise price and measurement dates used.

The amount of provision for common stock warrants recorded as a reduction of revenue for the three months ended March 31, 2023 and 2022, respectively, is shown in the table below (in thousands):

	Three months ended
	March 31,
	2023		2022
Sales of fuel cell systems, related infrastructure and equipment	$	(434)	$	(17)
Services performed on fuel cell systems and related infrastructure		(374)		(150)
Power purchase agreements		(7,185)		(974)
Fuel delivered to customers		(6,182)		(711)
Total	$	(14,175)	$	(1,852)

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Net revenue, cost of revenue, gross profit (loss) and gross margin (loss) percentage for the three months ended March 31, 2023 and 2022 were as follows (in thousands):

	Three Months Ended
		March 31,
			Cost of		Gross		Gross
	Net Revenue		Revenue		Profit/(Loss)		Margin
For the period ended March 31, 2023:
Sales of equipment, related infrastructure and other	$	182,094	$	158,320	$	23,774	13.1	%
Services performed on fuel cell systems and related infrastructure		9,097		12,221		(3,124)	(34.3)	%
Provision for loss contracts related to service		—		6,889		(6,889)	N/A
Power purchase agreements		7,937		46,816		(38,879)	(489.8)	%
Fuel delivered to customers and related equipment		10,142		54,501		(44,359)	(437.4)	%
Other		1,016		935		81	8.0	%
Total	$	210,286	$	279,682	$	(69,396)	(33.0)	%
For the period ended March 31, 2022:
Sales of equipment, related infrastructure and other	$	108,847	$	88,828	$	20,019	18.4	%
Services performed on fuel cell systems and related infrastructure		8,240		13,875		(5,635)	(68.4)	%
Provision for loss contracts related to service		—		2,048		(2,048)	N/A
Power purchase agreements		10,037		31,753		(21,716)	(216.4)	%
Fuel delivered to customers and related equipment		13,429		39,272		(25,843)	(192.5)	%
Other		251		377		(126)	(50.2)	%
Total	$	140,804	$	176,153	$	(35,349)	(25.1)	%

Net Revenue

Revenue – sales of equipment, related infrastructure and other. Revenue from sales of equipment, related infrastructure and other represents revenue from the sale of our fuel cells, such as GenDrive units and GenSure stationary backup power units, as well as hydrogen fueling infrastructure referred to at the site level as hydrogen installations, electrolyzer stacks and systems, and other equipment such as liquefiers and cryogenic storage equipment. Revenue from sales of equipment, related infrastructure and other for the three months ended March 31, 2023 increased $73.2 million, or 67.3%, to $182.1 million from $108.9 million for the three months ended March 31, 2022 primarily due to increases in revenue related to hydrogen site installations, liquefiers, cryogenic equipment, and electrolyzer stacks and systems. The increase in hydrogen infrastructure revenue of $21.8 million was due to 14 hydrogen site installations for the three months ended March 31, 2023 compared to seven for the three months ended March 31, 2022. The increase in the revenue related to cryogenic storage equipment and liquefiers of $38.4 million was due to an increase in sales of liquefiers, as well as an increase in revenue of $11.1 million due to the acquisition of CIS in which there was no revenue recognized in the first quarter of 2022. Revenue related to electrolyzers increased $36.0 million, which was due to increased volume of 62 one megawatt equivalent units sold for the three months ended March 31, 2023 compared to 2 one megawatt equivalent units sold for the three months ended March 31, 2022. Partially offsetting these increases was a decrease in revenue related to GenDrives of $8.3 million, as the number of units decreased from 1,229 for the three months ended March 31, 2022 to 1,035 for the three months ended March 31, 2023 due to timing of site deployments, as well as a decrease of $14.2 million related to the sales of engineered oil and gas equipment from an acquisition that are not expected to continue beyond current commitments.  Additionally, there was a provision for common stock warrants of $0.4 million and $17 thousand for the three months ended March 31, 2023 and 2022, respectively.

Revenue – services performed on fuel cell systems and related infrastructure.  Revenue from services performed on fuel cell systems and related infrastructure represents revenue earned primarily on our service and maintenance contracts, as well as sales of spare parts. At March 31, 2023, there were 20,154 fuel cell units and 95 hydrogen installations under extended maintenance contracts, an increase from 19,409 fuel cell units and 84 hydrogen installations at March 31,

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2022. Revenue from services performed on fuel cell systems and related infrastructure for the three months ended March 31, 2023 increased $0.9 million, or 10.4%, to $9.1 million as compared to $8.2 million for the three months ended March 31, 2022. The increase in revenue from services performed on fuel cell systems and related infrastructure for the three months ended March 31, 2023 compared to 2022 was primarily related to our expanding customer base and growth within our current customer base.

Revenue – Power Purchase Agreements.  Revenue from PPAs represents payments received from customers for power generated through the provision of equipment and service. At March 31, 2023, there were 117 GenKey sites associated with PPAs, as compared to 77 at March 31, 2022. Revenue from PPAs for the three months ended March 31, 2023 decreased $2.1 million, or 20.9%, to $7.9 million from $10.0 million for the three months ended March 31, 2022. The decrease in revenue was primarily due to an increase in provision for common stock warrants, which went from $1.0 million for the three months ended March 31, 2022 to $7.2 million for the three months ended March 31, 2023.  Partially offsetting the increase in provision for common stock warrants was an increase in revenue from PPAs for the three months ended March 31, 2023 as compared to the three months ended March 31, 2022 primarily attributable to the new sites for existing customers and new customers accessing the PPA solution. All of the new PPA sites in the first quarter of 2023 were not deployed until late in the quarter; therefore, the full impact on revenue has yet to be realized.

Revenue – fuel delivered to customers and related equipment. Revenue associated with fuel delivered to customers and related equipment represents the sale of hydrogen to customers that has been purchased by the Company from a third party or generated on site. Revenue associated with fuel delivered to customers for the three months ended March 31, 2023 decreased $3.3 million, or 24.5%, to $10.1 million from $13.4 million for the three months ended March 31, 2022. The decrease in revenue was primarily due to an increase in provision for common stock warrants, which went from $0.7 million for the three months ended March 31, 2022 to $6.2 million for the three months ended March 31, 2023. Partially offsetting the increase in provision for common stock warrants was an increase in revenue due to an increase in the number of sites with fuel contracts from 159 as of March 31, 2022 to 210 as of March 31, 2023. All of the new fuel sites in the first quarter of 2023 were not deployed until late in the quarter; therefore, the full impact on revenue has yet to be realized.

Cost of Revenue

Cost of revenue – sales of equipment, related infrastructure and other. Cost of revenue from sales of equipment, related infrastructure and other includes direct materials, labor costs, and allocated overhead costs related to the manufacture of our fuel cells such as GenDrive units and GenSure stationary backup power units, as well as hydrogen fueling infrastructure referred to at the site level as hydrogen installations, electrolyzer stacks and systems, and other equipment such as cryogenic storage equipment and liquefiers. Cost of revenue from sales of fuel cell systems, related infrastructure and equipment for the three months ended March 31, 2023 increased 78.2%, or $69.5 million, to $158.3 million, compared to $88.8 million for the three months ended March 31, 2022. The increase in hydrogen infrastructure cost of revenue of $13.8 million was due to 14 hydrogen site installations for the three months ended March 31, 2023 compared to seven for the three months ended March 31, 2022. The increase in cryogenic storage equipment of $31.0 million was due to an increase in costs related to the sales of liquefiers, as well as an increase in the cost of revenue of $10.0 million due to the acquisition of CIS in which there were no costs of revenue recognized in the first quarter of 2022. The cost of revenue related to electrolyzer stacks and systems increased $32.8 million, which was due to 62 one megawatt equivalent units sold for the three months ended March 31, 2023 compared to 2 one megawatt equivalent units sold for the three months ended March 31, 2022. The cost of revenue related to GenDrives increased $4.9 million, as the number of units decreased from 1,229 for the three months ended March 31, 2022 to 1,035 for the three months ended March 31, 2023. Partially offsetting these increases is a decrease of $12.9 million related to the legacy oil and gas contracts. Gross margin decreased to 13.1% for the three months ended March 31, 2023, compared to 18.4% for the three months ended March 31, 2022. The decrease in gross margin was primarily due to ramp up of costs on new product offerings for high power stationary units and electrolyzers as well as an increase in the provision for common stock warrants.  The provision for common stock warrants was $0.4 million and $17 thousand for the three months ended March 31, 2023 and 2022, respectively.

Cost of revenue – services performed on fuel cell systems and related infrastructure. Cost of revenue from services performed on fuel cell systems and related infrastructure includes the labor, material costs and allocated overhead

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costs incurred for our product service and hydrogen site maintenance contracts and spare parts. At March 31, 2023, there were 20,154 fuel cell units and 95 hydrogen installations under extended maintenance contracts, an increase from 19,409 fuel cell units and 84 hydrogen installations at March 31, 2022, respectively. Cost of revenue from services performed on fuel cell systems and related infrastructure for the three months ended March 31, 2023 decreased 11.9%, or $1.7 million, to $12.2 million, compared to $13.9 million for the three months ended March 31, 2022. Gross loss decreased to (34.3%) for the three months ended March 31, 2023, compared to (68.4%) for the three months ended March 31, 2022. The decrease in cost of revenue and improvement in gross loss are both due primarily due to cost down and quality related initiatives.

Cost of revenue – provision for loss contracts related to service.  The Company also recorded a provision for loss contracts related to service of $6.9 million for the three months ended March 31, 2023, compared to $2.1 million for the three months ended March 31, 2022, related primarily to new service contracts entered into during the first quarter of 2023.

Cost of revenue – Power Purchase Agreements.  Cost of revenue from PPAs includes depreciation of assets utilized and service costs to fulfill PPA obligations and interest costs associated with certain financial institutions for leased equipment. At March 31, 2023, there were 117 GenKey sites associated with PPAs, as compared to 77 at March 31, 2022. Cost of revenue from PPAs for the three months ended March 31, 2023 increased 47.4%, or $15.1 million, to $46.8 million from $31.8 million for the three months ended March 31, 2022 due to the increase in units and sites under PPA contract as well as increased freight costs. Gross loss increased to (489.8%) for the three months ended March 31, 2023, as compared to (216.4%) for the three months ended March 31, 2022 primarily due to the provision for common stock warrants of $7.2 million for the three months ended March 31, 2023 compared to $1.0 million for the three months ended March 31, 2022.

Cost of revenue – fuel delivered to customers and related equipment. Cost of revenue from fuel delivered to customers and related equipment represents the purchase of hydrogen from suppliers that ultimately is sold to customers and costs for onsite generation. Cost of revenue from fuel delivered to customers for the three months ended March 31, 2023 increased 38.8%, or $15.2 million, to $54.5 million from $39.3 million for the three months ended March 31, 2022. The increase was primarily due to higher volume of hydrogen delivered to customer sites as a result of an increase in the number of hydrogen installations completed under GenKey agreements, inefficiencies in fueling systems and higher fuel costs. The gross loss increased to (437.4%) during the three months ended March 31, 2023, compared to (192.5%) during the three months ended March 31, 2022, primarily due to the increase in cost of revenue described above, as well as a reduction of revenue resulting from an increase in the provision for common stock warrants of $6.2 million and $0.7 million for the three months ended March 31, 2023 and 2022, respectively.

Expenses

Research and development expense. Research and development (“R&D”) expense includes: materials to build development and prototype units, cash and non-cash stock-based compensation and benefits for the engineering and related staff, expenses for contract engineers, fees paid to consultants for services provided, materials and supplies consumed, facility related costs such as computer and network services, and other general overhead costs associated with our research and development activities.

Research and development expense for the three months ended March 31, 2023 increased $6.1 million, or 29.7%, to $26.5 million, from $20.5 million for the three months ended March 31, 2022. The overall growth in R&D investment is commensurate with the Company’s future expansion into new markets, new product lines, acquisitions and varied vertical integrations.

Selling, general and administrative expenses. Selling, general and administrative expenses includes cash and non-cash stock-based compensation, benefits, amortization of intangible assets and related costs in support of our general corporate functions, including general management, finance and accounting, human resources, selling and marketing, information technology and legal services.

Selling, general and administrative expenses for the three months ended March 31, 2023, increased $23.1 million, or 28.6%, to $104.0 million from $80.9 million for the three months ended March 31, 2022. This increase was primarily related to increased headcount, which resulted in increased salaries and stock-based compensation.

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Contingent consideration.  The fair value of the contingent consideration is related to earnouts for the Giner ELX, Inc., United Hydrogen Group Inc., Frames, Applied Cryo and Joule acquisitions. The change in fair value for the three months ended March 31, 2023 was $8.8 million, primarily due to the passage of time and settlement of the Applied Cryo earnout, which is expected to be paid in the second quarter of 2023.

Interest income. Interest income primarily consists of income generated by our investment holdings, restricted cash escrow accounts, and money market accounts. Interest income for the three months ended March 31, 2023 increased $15.6 million, as compared to the three months ended March 31, 2022. The increase was primarily related to the increase in interest rates during 2023.

Interest expense. Interest expense consists of interest expense related to our long-term debt, convertible senior notes, obligations under finance leases and our finance obligations. Interest expense for the three months ended March 31, 2023 increased $2.0 million compared to the three months ended March 31, 2022, primarily related to a decrease in capitalized interest, offset by an increase in finance obligations.

Realized loss on investments, net. Realized loss on investments, net consists of the sales related to available-for-sale debt securities. For the three months ended March 31, 2022, the Company had a loss of $0.8 million of net realized loss on investments, compared to $0 for the three months ended March 31, 2023.  

Change in fair value of equity securities. The change in fair value of equity securities improved $10.2 million for the three months ended March 31, 2023 from March 31, 2022.

Loss on equity method investments. Loss on equity method investments consists of our interest in HyVia, which is our 50/50 joint venture with Renault, AccionaPlug S.L., which is our 50/50 joint venture with Acciona, and SK Plug Hyverse, which is our 49/51 joint venture with SK E&S. For the three months ended March 31, 2023, the Company recorded a loss of $5.3 million on equity method investments. These losses are driven from the start-up activities for commercial and production operations.

Income Taxes

The Company recorded $1.3 million and $0.4 million of income tax benefit for the three months ended March 31, 2023 and 2022, respectively. The Company has not changed its overall conclusion with respect to the need for a valuation allowance against its domestic net deferred tax assets, which remain fully reserved.

The domestic net deferred tax asset generated from the Company’s net operating loss has been offset by a full valuation allowance because it is more likely than not that the tax benefits of the net operating loss carry forward will not be realized. The Company recognizes accrued interest and penalties related to unrecognized tax benefits, if any, as a component of income tax expense.

Liquidity and Capital Resources

Liquidity

As of March 31, 2023 and December 31, 2022, the Company had $474.9 million and $690.6 million, respectively of cash and cash equivalents and $898.4 million and $858.7 million of restricted cash, respectively. Additionally, the Company had $1.0 billion and $1.3 billion of available-for-sale securities as of March 31, 2023 and December 21, 2022, respectively.

The Company has continued to experience negative cash flows from operations and net losses. The Company incurred net losses of $206.6 million and $156.5 million for the three months ended March 31, 2023 and 2022, respectively, and had an accumulated deficit of $3.3 billion at March 31, 2023.

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The net cash used in operating activities for the three months ended March 31, 2023 and 2022 was $276.9 million and $209.9 million, respectively. This increase was primarily due to an increase in spend related to inventory as well as other working capital changes. The Company’s working capital was $2.3 billion as of March 31, 2023, which included unrestricted cash and cash equivalents of $474.9 million. The Company plans to invest a portion of its available cash to expand its current production and manufacturing capacity, construction of hydrogen plants and to fund strategic acquisitions and partnerships and capital projects. Future use of the Company’s funds is discretionary and the Company believes that its working capital and cash position will be sufficient to fund its operations for at least one year after the date the financial statements are issued.

The net cash provided by investing activities for the three months ended March 31, 2023 and 2022 was $95.8 million and $273.9 million, respectively. This decrease was due to a reduction of proceeds from available-for-sale securities compared to the prior year, partially offset by an increase of capital spending. Included in purchases of property, plant and equipment and outflows associated with materials, labor, and overhead are costs necessary to construct new leased property. Cash outflows related to equipment that we lease directly to customers are included in net cash used in investing activities.

The net cash provided by financing activities for the three months ended March 31, 2023 was $7.2 million compared to net cash used in financing activities for the three months ended March 31, 2022 of $18.2 million. The change was primarily driven by lower principal payments of long-term debt compared to the prior year due to decreased outstanding principal debt balances.

The Company’s significant obligations consisted of the following as of March 31, 2023:

(i) Operating and finance leases totaling $327.8 million and $48.0 million, respectively, of which $52.9 million and $8.6 million, respectively, are due within the next 12 months. These leases are primarily related to sale/leaseback agreements entered into with various financial institutions to facilitate the Company’s commercial transactions with key customers.

(ii) Finance obligations totaling $342.8 million, of which approximately $63.4 million is due within the next 12 months. Finance obligations consist primarily of debt associated with the sale of future revenues and failed sale/leaseback transactions.

(iii) Convertible senior notes totaling $194.3 million at March 31, 2023.

Public and Private Offerings of Equity and Debt

Common Stock Issuances

In February 2021, the Company sold 54,966,188 shares of its common stock to a subsidiary of SK Holdings at a purchase price of $29.2893 per share, or an aggregate purchase price of approximately $1.6 billion.

In January and February 2021, the Company issued and sold in a registered equity offering an aggregate of 32,200,000 million shares of its common stock at a purchase price of $65.00 per share for net proceeds of approximately $2.0 billion.

In November 2020, the Company issued and sold in a registered direct offering an aggregate of 43,700,000 shares of its common stock at a purchase price of $22.25 per share for net proceeds of approximately $927.3 million.

In August 2020, the Company issued and sold in a registered direct offering an aggregate of 35,276,250 shares of its common stock at a purchase price of $10.25 per share for net proceeds of approximately $344.4 million.

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Convertible Senior Notes

In May 2020, the Company issued $212.5 million in aggregate principal amount of 3.75% Convertible Senior Notes. The total net proceeds from this offering, after deducting costs of the issuance, were $205.1 million. The Company used $90.2 million of the net proceeds from the offering of the 3.75% Convertible Senior Notes to repurchase $66.3 million of the $100 million in aggregate principal amount of the 5.5% Convertible Senior Notes. In addition, the Company used approximately $16.3 million of the net proceeds from the offering of the 3.75% Convertible Senior Notes to enter into privately negotiated capped called transactions. In the fourth quarter of 2020, $33.5 million of the remaining 5.5% Convertible Senior Notes were converted into 14.6 million shares of common stock, resulting in a gain of approximately $4.5 million which was recorded on the consolidated statement of operations on the gain (loss) on extinguishment of debt line. As of December 31, 2020, approximately $0.2 million aggregate principal amount of the 5.5% Convertible Senior Notes remained outstanding, all of which were converted to common stock in January 2021.

Secured Debt

In March 2019, the Company entered into a loan and security agreement, as amended, with Generate Lending, LLC, providing for a secured term loan facility in the amount of $100 million (the “Term Loan Facility”). In December 2022, the Company fully repaid the outstanding balance of the Term Loan Facility.

In June 2020, the Company acquired debt as part of its acquisition of United Hydrogen Group Inc. The outstanding carrying value of the debt was $9.0 million as of March 31, 2023. The outstanding principal on the debt was $11.1 million and the unamortized debt discount was $2.1 million, bearing varying interest rates ranging from 2.2% to 8.3%.  The debt is scheduled to mature in 2026. As of March 31, 2023, the principal balance indicated below was due at each of the following dates as follows (in thousands):

December 31, 2023	$	5,660
December 31, 2024		3,357
December 31, 2025		1,200
December 31, 2026		900
	$	11,117

3.75% Convertible Senior Notes

On May 18, 2020, the Company issued $200.0 million in aggregate principal amount of 3.75% Convertible Senior Notes due June 1, 2025, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act. On May 29, 2020, the Company issued an additional $12.5 million in aggregate principal amount of 3.75% Convertible Senior Notes. During the three months ended March 31, 2023, there were no conversions of the 3.75% Convertible Senior Notes.

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Principal amounts:
Principal	$	197,278	$	197,278
Unamortized debt issuance costs (1)		(3,028)		(3,359)
Net carrying amount	$	194,250	$	193,919

1) Included in the unaudited interim condensed consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

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The following table summarizes the total interest expense, the amortization of debt issuance costs and the effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for the effective interest rate):

	March 31,			March 31,
	2023			2022
Interest expense	$	1,849	$	1,849
Amortization of debt issuance costs		331		316
Total		2,180		2,165
Effective interest rate		4.5%		4.5%

Based on the closing price of the Company’s common stock of $11.72 on March 31, 2023, the if-converted value of the notes was greater than the principal amount. The estimated fair value of the note at March 31, 2023 was approximately $433.6 million. The fair value estimation was primarily based on an active stock exchange trade on March 29, 2023 of the 3.75% Convertible Senior Notes.

Capped Call

In conjunction with the pricing of the 3.75% Convertible Senior Notes, the Company entered into privately negotiated capped call transactions (the “3.75% Notes Capped Call”) with certain counterparties at a price of $16.2 million. The 3.75% Notes Capped Call covers, subject to anti-dilution adjustments, the aggregate number of shares of the Company’s common stock that underlie the initial 3.75% Convertible Senior Notes and is generally expected to reduce potential dilution to the Company’s common stock upon any conversion of the 3.75% Convertible Senior Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the converted notes, as the case may be, with such reduction and/or offset subject to a cap based on the cap price. The cap price of the 3.75% Notes Capped Call is initially $6.7560 per share, which represents a premium of approximately 60% over the last then-reported sale price of the Company’s common stock of $4.11 per share on the date of the transaction and is subject to certain adjustments under the terms of the 3.75% Notes Capped Call. The 3.75% Notes Capped Call becomes exercisable if the conversion option is exercised.

The net cost incurred in connection with the 3.75% Notes Capped Call were recorded as a reduction to additional paid-in capital in the unaudited interim condensed consolidated balance sheets. The book value of the 3.75% Notes Capped Call is not remeasured.

Common Stock Forward

In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due on March 15, 2023, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act, which have been fully repaid.  In connection with the issuance of the 5.5% Convertible Senior Notes, the Company entered into a forward stock purchase transaction (the “Common Stock Forward”), pursuant to which the Company agreed to purchase 14,397,906 shares of its common stock for settlement on or about March 15, 2023. On May 18, 2020, the Company amended and extended the maturity of the Common Stock Forward to June 1, 2025.  The number of shares of common stock that the Company will ultimately repurchase under the Common Stock Forward is subject to customary anti-dilution adjustments. The Common Stock Forward is subject to early settlement or settlement with alternative consideration in the event of certain corporate transactions.

The net cost incurred in connection with the Common Stock Forward of $27.5 million was recorded as an increase in treasury stock in the unaudited interim condensed consolidated balance sheets. The related shares were accounted for as a repurchase of common stock. The book value of the Common Stock Forward is not remeasured.

There were no shares of common stock settled in connection with the Common Stock Forward during the three months ended March 31, 2023 or during the three months ended March 31, 2022.

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Amazon Transaction Agreement in 2022

On August 24, 2022, the Company and Amazon entered into a Transaction Agreement (the “2022 Transaction Agreement”), under which the Company concurrently issued to Amazon.com NV Investment Holdings LLC, a wholly owned subsidiary of Amazon, a warrant (the “Amazon Warrant”) to acquire up to 16,000,000 shares (the “Amazon Warrant Shares”) of the Company’s common stock, subject to certain vesting events described below. The Company and Amazon entered into the 2022 Transaction Agreement in connection with a concurrent commercial arrangement under which Amazon agreed to purchase hydrogen fuel from the Company through August 24, 2029.

1,000,000 of the Amazon Warrant Shares vested immediately upon issuance of the Amazon Warrant. 15,000,000 of the Amazon Warrant Shares will vest in multiple tranches over the 7-year term of the Amazon Warrant based on payments made to the Company directly by Amazon or its affiliates, or indirectly through third parties, with 15,000,000 of the Amazon Warrant Shares fully vesting if Amazon-related payments of $2.1 billion are made in the aggregate. The exercise price for the first 9,000,000 Amazon Warrant Shares is $22.9841 per share and the fair value on the grant date was $20.36. The exercise price for the remaining 7,000,000 Amazon Warrant Shares will be an amount per share equal to 90% of the 30-day volume weighted average share price of the Company’s common stock as of the final vesting event that results in full vesting of the first 9,000,000 Amazon Warrant Shares. The Amazon Warrant is exercisable through August 24, 2029.

Upon the consummation of certain change of control transactions (as defined in the applicable warrant) prior to the vesting of at least 60% of the aggregate Amazon Warrant Shares, the Amazon Warrant will automatically vest and become exercisable with respect to an additional number of Amazon Warrant Shares such that 60% of the aggregate Amazon Warrant Shares shall have vested. If a change of control transaction is consummated after the vesting of at least 60% of the aggregate Amazon Warrant Shares, then no acceleration of vesting will occur with respect to any of the unvested Amazon Warrant Shares as a result of the transaction. The exercise price and the Amazon Warrant Shares issuable upon exercise of the Amazon Warrant are subject to customary antidilution adjustments.

At March 31, 2023, 1,000,000 of the Amazon Warrant Shares issued pursuant to the 2022 Transaction Agreement had vested upon issuance. The warrant charge associated with the vested shares of $20.4 million was capitalized to contract assets in our condensed consolidated unaudited interim financial statements based on the grant date fair value and is subsequently amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The grant date fair value of tranches 2 and 3 will also be amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. Because the exercise price has yet to be determined, the fair value of tranche 4 will be remeasured at each reporting period end and amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Amazon Warrant during the three months ended March 31, 2023 was $1.1 million.

The assumptions used to calculate the valuations as of August 24, 2022 and March 31, 2023 are as follows:

	Tranches 1-3	Tranche 4
	August 24, 2022	March 31, 2023
Risk-free interest rate	3.15%	3.50%
Volatility	75.00%	75.00%
Expected average term	7 years	4 years
Exercise price	$22.98	$10.55
Stock price	$20.36	$11.72

Amazon Transaction Agreement in 2017

On April 4, 2017, the Company and Amazon entered into a Transaction Agreement (the “2017 Amazon Transaction Agreement”), pursuant to which the Company agreed to issue to Amazon.com NV Investment Holdings LLC, a warrant to acquire up to 55,286,696 Amazon Warrant Shares, subject to certain vesting events described below. The Company and Amazon entered into the 2017 Amazon Transaction Agreement in connection with existing commercial agreements between the Company and Amazon with respect to the deployment of the Company’s GenKey fuel cell

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technology at Amazon distribution centers. The vesting of the Amazon Warrant Shares was conditioned upon payments made by Amazon or its affiliates (directly or indirectly through third parties) pursuant to the existing commercial agreements. At December 31, 2021, all 55,286,696 of the Amazon Warrant Shares had vested.  

The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022, respectively.

Walmart Transaction Agreement

On July 20, 2017, the Company and Walmart entered into a Transaction Agreement (the “Walmart Transaction Agreement”), pursuant to which the Company agreed to issue to Walmart a warrant (the “Walmart Warrant”) to acquire up to 55,286,696 shares of the Company’s common stock, subject to certain vesting events (the “Walmart Warrant Shares”). The Company and Walmart entered into the Walmart Transaction Agreement in connection with existing commercial agreements between the Company and Walmart with respect to the deployment of the Company’s GenKey fuel cell technology across various Walmart distribution centers. The existing commercial agreements contemplate, but do not guarantee, future purchase orders for the Company’s fuel cell technology. The vesting of the warrant shares was conditioned upon payments made by Walmart or its affiliates (directly or indirectly through third parties) pursuant to transactions entered into after January 1, 2017 under existing commercial agreements.

The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022.

At March 31, 2023 and December 31, 2022, 27,643,347 of the Walmart Warrant Shares had vested. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Walmart Warrant during the three months ended March 31, 2023 and 2022 was $12.9 million and $1.7 million, respectively. During the three months ended March 31, 2023 and 2022, there were no exercises with respect to the Walmart Warrant.

The assumptions used to calculate the valuations of the final tranche of the Walmart Warrant as of March 31, 2023 are as follows:

	March 31, 2023
Risk-free interest rate	3.55%
Volatility	75.00%
Expected average term	3.5 years
Exercise price	$10.55
Stock price	$11.72

Operating and Finance Lease Liabilities

As of March 31, 2023, the Company had operating leases, as lessee, primarily associated with sale/leaseback transactions that are partially secured by restricted cash, security deposits and pledged escrows (see also Note 1, “Nature of Operations”) as summarized below.  These leases expire over the next one to nine years. Minimum rent payments under operating leases are recognized on a straight-line basis over the term of the lease.  

Leases contain termination clauses with associated penalties, the amount of which cause the likelihood of cancellation to be remote.  At the end of the lease term, the leased assets may be returned to the lessor by the Company, the Company may negotiate with the lessor to purchase the assets at fair market value, or the Company may negotiate with the lessor to renew the lease at market rental rates.  No residual value guarantees are contained in the leases.  No financial covenants are contained within the lease; however, the lease contains customary operational covenants such as the requirement that the Company properly maintain the leased assets and carry appropriate insurance. The leases include credit support in the form of either cash, collateral or letters of credit.  See Note 19, “Commitments and Contingencies” for a description of cash held as security associated with the leases.    

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The Company has finance leases associated with its property and equipment in Latham, New York and at fueling customer locations.  The fair value of this finance obligation approximated the carrying value as of March 31, 2023.

Finance Obligation  

The Company has sold future services to be performed associated with certain sale/leaseback transactions and recorded the balance as a finance obligation.  The outstanding balance of this obligation at March 31, 2023 was $324.9 million, $59.9 million and $265.0 million of which was classified as short-term and long-term, respectively, on the accompanying unaudited interim condensed consolidated balance sheet. The outstanding balance of this obligation at December 31, 2022 was $312.1 million, $55.4 million and $256.6 million of which was classified as short-term and long-term, respectively. The amount is amortized using the effective interest method. Interest expense recorded related to finance obligations for the three months ended March 31, 2023 and 2022 was $9.2 million and $6.7 million, respectively. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

In prior periods, the Company entered into sale/leaseback transactions that were accounted for as financing transactions and reported as part of finance obligations. The outstanding balance of finance obligations related to sale/leaseback transactions at March 31, 2023 was $17.9 million, $3.5 million and $14.4 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheet.  The outstanding balance of this obligation at December 31, 2022 was $17.2 million, $3.5 million and $13.7 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheets. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

Restricted Cash

In connection with certain of the above noted sale/leaseback agreements, cash of $445.2 million and $383.7 million was required to be restricted as security as of March 31, 2023 and December 31, 2022, respectively, which restricted cash will be released over the lease term. As of March 31, 2023 and December 31, 2022, the Company also had certain letters of credit backed by security deposits totaling $340.5 million and $379.6 million, respectively, that are security for the above noted sale/leaseback agreements. As of March 31, 2023, the Company also had certain customer and customs related letters of credit totaling $22.7 million.

As of both March 31, 2023 and December 31, 2022, the Company had $75.5 million held in escrow related to the construction of certain hydrogen plants.

The Company also had $5.0 million, $1.2 million, and $1.8 million of consideration held by our paying agent in connection with the Applied Cryo, Joule, and CIS acquisitions, respectively, reported as restricted cash as of March 31, 2023, with a corresponding accrued liability on the Company’s unaudited interim condensed consolidated balance sheet. Additionally, the Company had $6.5 million and $10.8 million in restricted cash as collateral resulting from the Frames acquisition as of March 31, 2023 and December 31, 2022, respectively.  

Investments

Our investment portfolio, including cash and cash equivalents, totaled $1.6 billion at March 31, 2023. Purchases of fixed maturity securities are classified as available-for-sale at the time of purchase based on individual security.

49

The composition of our investment portfolio, including cash and cash equivalents, as of March 31, 2023, is shown in the following table (in thousands):

	Carrying		Percentage of
	Amount		Portfolio
Fixed maturity securities - available-for-sale
U.S. Treasuries	$	864,508	52.6%
Corporate bonds		163,863	10.0%
Total fixed maturity securities - available-for-sale	$	1,028,371	62.6%
Equity securities		139,911	8.5%
Cash and cash equivalents		474,861	28.9%
Total investments, including cash and cash equivalents	$	1,643,143	100.0%

Extended Maintenance Contracts

On a quarterly basis, we evaluate any potential losses related to our extended maintenance contracts for fuel cell systems and related infrastructure that have been sold. The following table shows the rollforward of balance in the accrual for loss contracts, including changes due to the provision for loss accrual, loss accrual from acquisition, releases to service cost of sales, and releases due to the provision for warrants (in thousands):

	Three months		Year
	ended		ended
	March 31, 2023		December 31, 2022
Beginning balance	$	81,066	$	89,773
Provision for loss accrual		6,981		23,295
Releases to service cost of sales		(6,668)		(35,446)
Increase/(decrease) to loss accrual related to customer warrants		(92)		3,506
Foreign currency translation adjustment		25		(62)
Ending balance	$	81,312	$	81,066

Critical Accounting Estimates

Management’s discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities at the date of and during the reporting period. On an on-going basis, we evaluate our estimates and judgments, including those related to revenue recognition, valuation of long-lived assets, accrual for service loss contracts and common stock warrants. We base our estimates and judgments on historical experience and on various other factors and assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about (1) the carrying values of assets and liabilities and (2) the amount of revenue and expenses realized that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

There have been no changes in our critical accounting estimates from those reported in our 2022 Form 10-K.

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

Other than the adoption of the accounting guidance mentioned in our 2022 Form 10-K, there have been no other significant changes in our reported financial position or results of operations and cash flows resulting from the adoption of new accounting pronouncements.

50

Recent Accounting Guidance Not Yet Effective

All issued but not yet effective accounting and reporting standards as of March 31, 2023 are either not applicable to the Company or are not expected to have a material impact on the Company.

Item 3 — Quantitative and Qualitative Disclosures about Market Risk

There has been no material change from the information provided in the Company’s 2022 Form 10-K under the section titled “Item 7A: Quantitative and Qualitative Disclosures About Market Risk.”

Item 4 — Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our reports that we file or submit under the Exchange Act, are recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer (our principal executive officer) and Chief Financial Officer (our principal financial officer) as appropriate, to allow for timely decisions regarding required disclosure.

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), as of March 31, 2023. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of March 31, 2023, our disclosure controls and procedures were not effective because of material weaknesses in internal control over financial reporting described in Part II, Item 9A “Controls and Procedures” of our 2022 Form 10-K. The material weaknesses have not been remediated as of March 31, 2023.

Changes in Internal Control over Financial Reporting

There were no changes during the quarter ended March 31, 2023 in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

51

Part II. OTHER INFORMATION

Item 1 – Legal Proceedings

See “Note 19: Commitments and Contingencies” within Item 1 of this Form 10-Q for a discussion regarding material legal proceedings.

Except as otherwise noted, there have been no material developments in legal proceedings. For previously reported information about legal proceedings, refer to Part I, Item 3, “Legal Proceedings,” of the Company’s 2022 Form 10-K.

Item 1A – Risk Factors

In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider the risk factors that could materially affect the Company’s business, financial condition or future results discussed in the Company’s 2022 Form 10-K in Part I, Item 1A. “Risk Factors.”  The risks described in the 2022 Form 10-K are not the only risks that could affect the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition and/or operating results in the future. As a supplement to the risk factors identified in the 2022 Form 10-K, below we have set forth updated risk factors. Other than as provided below, there have been no material changes to our risk factors since December 31, 2022.

We are dependent on information technology in our operations and the failure of such technology may adversely affect our business. Security breaches of our information technology systems, including cyber-attacks, ransomware attacks, or use of malware or phishing or other malicious techniques by threat actors, could lead to liability, could impact our operations, or could damage our reputation and financial results.

We have in the past and may in the future experience problems with the operation of our current information technology systems or the technology systems of third parties on which we rely, as well as the development and deployment of new information technology systems, that could adversely affect, or even temporarily disrupt, all or a portion of our operations until resolved. The inability to implement new systems or delays in implementing new information technology systems may also affect our ability to realize projected or expected cost savings. Additionally, the inability to implement or delays in implementing new security measures can also affect our ability to protect against increasingly sophisticated threat actors. Any systems failures could impede our ability to timely collect and report financial results in accordance with applicable laws.

Information technology system and/or network disruptions could harm the Company’s operations. Failure to effectively prevent, detect, and recover from security compromises or breaches, including cyber-attacks, could result in the misuse of company assets, unauthorized use or publication of our trade secrets and confidential business information, disruption to the company, diversion of management resources, regulatory inquiries, legal claims or proceedings, reputational damage, loss of sales, reduction in value of our investment in research and development, among other costs to the company. We have experienced and may continue to experience both successful and unsuccessful attempts to gain unauthorized access to our information technology systems on which we maintain proprietary and confidential information.  For example, in or around March 2023, an unauthorized actor accessed our computer network and executed a ransomware attack, resulting in the encryption of certain of our computer systems, including systems used to store proprietary and confidential data, and exfiltration of limited data sets. Upon detection, we took immediate steps to contain, assess and remediate the incident, including engaging outside legal counsel and external forensic investigators.  As of the date of the filing of this Quarterly Report on Form 10-Q, we have restored the affected systems and throughout this restoration period our business remained fully operational with no material disruption.  Based on information available to date, we do not believe the ransomware event has had a material impact on our business.  However, as a result of the incident, we have incurred costs in addressing the incident, including costs related to investigation, containment, restoration, and remediation.

The risk of a security compromise, breach, or disruption, particularly through cyber-attacks, or cyber intrusion, including by computer hackers, insider threats, and cyber terrorists, has generally increased as cyber-attacks have become

52

more prevalent and harder to detect and fight against and threat actors continue to become more sophisticated in their malicious techniques. Additionally, outside or unauthorized parties may attempt to access our confidential information through other means, for example by fraudulently inducing our employees to disclose confidential information through phishing emails or deceptive advertising campaigns. We actively seek to prevent, detect, and investigate any unauthorized access. These threats are also continually evolving, and as a result, will become increasingly difficult to detect. In addition, as a result of the COVID-19 pandemic, the increased prevalence of employees working from home may exacerbate the aforementioned cybersecurity risks. Despite the implementation of network security measures, our information technology system have been and could be penetrated by outside or unauthorized parties. Going forward, we may expend additional resources, expenses, and legal and professional fees to further enhance the security of our information technology systems and continually assess our current security measures.  In addition, we may be subject to governmental investigations, enforcement actions, regulatory fines or litigation, or we may suffer from reputational damage or public statements against us as a result of unauthorized access to our information technology systems.

Adverse developments affecting the financial services industry, such as actual events or concerns involving liquidity, defaults, or non-performance by financial institutions or transactional counterparties, could adversely affect our business, financial condition and results of operations.

Actual events involving limited liquidity, defaults, non-performance or other adverse developments that affect financial institutions, transactional counterparties or other companies in the financial services industry or the financial services industry generally, or concerns or rumors about any events of these kinds or other similar risks, have in the past and may in the future lead to market-wide liquidity problems.  For example, the recent closures of Silicon Valley Bank, Signature Bank and Silvergate Capital Corp. led to disruption and volatility, and erosion of customer confidence, in the banking system, including deposit outflows, at many mid-sized banks, increasing the need for liquidity. Further, uncertainty remains over liquidity concerns in the broader financial services industry. For example, Credit Suisse recently agreed to be acquired by UBS following the intervention of the Swiss Federal Department of Finance, the Swiss National Bank and the Swiss Financial Market Supervisory Authority, and it was recently announced that JPMorgan Chase Bank, National Association would assume all of First Republic Bank’s deposits and substantially all of its assets.

Although a statement by the Department of the Treasury, the Federal Reserve and the FDIC indicated that all depositors of SVB would have access to all of their money after only one business day of closure, including funds held in uninsured deposit accounts, it is not clear that the Federal Reserve or the FDIC will treat future bank failures similarly. We maintain deposits at financial institutions as a part of doing business that could be at risk if another similar event were to occur. Our ongoing cash management strategy is to maintain the majority of our deposit accounts in large financial institutions, but there can be no assurance this strategy will be successful.  In addition, bank failures and bailouts and their potential broader effects and potential systemic risk on the global banking sector generally and its participants may adversely affect our business more generally. If any of our customers, suppliers or other parties with whom we conduct business are unable to access funds pursuant to instruments or lending arrangements with such a financial institution or if any of our customers, suppliers or other parties with whom we conduct business declare bankruptcy or insolvency, such parties’ ability to pay their obligations to us or to enter into new commercial arrangements requiring additional payments to us could be adversely affected. For example, a leaseholder bank for one of our sale leaseback transactions was recently placed in receivership and, while this did not have a material impact on our financial condition or results of operations, it could limit our access to proceeds from the transaction.

In addition, any decline in available funding or access to our cash and liquidity resources could, among other risks, limit our ability to meet our capital needs and fund future growth or fulfill our other obligations, or result in breaches of our financial and/or contractual obligations. Investor concerns regarding the U.S. or international financial systems could result in less favorable commercial financing terms, including higher interest rates or costs and tighter financial and operating covenants, or systemic limitations on access to credit and liquidity sources, including the corporate bond market, thereby making it more difficult for us to acquire financing on acceptable terms or at all. Any of these impacts, or any other impacts resulting from the factors described above or other related or similar factors not described above, could have material adverse impacts on our business, financial condition and results of operations.

53

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

(a)  Not applicable.

(b)  Not applicable.

(c)  None.

Item 3 — Defaults Upon Senior Securities

None.

Item 4 — Mine Safety Disclosures

None.

Item 5 — Other Information

None.

54

Item 6 — Exhibits

3.1	Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.1 to Plug Power Inc.’s Annual Report on Form 10-K for the year ended December 31, 2008 and incorporated by reference herein).
3.2	Certificate of Amendment to Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.3 to Plug Power Inc.’s Annual Report on Form 10-K for the year ended December 31, 2008 and incorporated by reference herein).
3.3	Second Certificate of Amendment of Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.1 to Plug Power Inc.’s Current Report on Form 8-K filed on May 19, 2011 and incorporated by reference herein).
3.4	Third Certificate of Amendment of Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.1 to Plug Power Inc.’s Current Report on Form 8-K filed on July 25, 2014 and incorporated by reference herein).
3.5	Certificate of Correction to Third Certificate of Amendment of Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.9 to Plug Power Inc.’s Annual Report on Form 10-K for the year ended December 31, 2016 and incorporated by reference herein).
3.6	Fourth Certificate of Amendment of Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.1 to Plug Power Inc.’s Current Report on Form 8-K filed on June 30, 2017 and incorporated by reference herein).
3.7	Fifth Certificate of Amendment of Amended and Restated Certificate of Incorporation of Plug Power Inc. (filed as Exhibit 3.7 to Plug Power Inc.’s Quarterly Report on Form 10-Q filed on August 5, 2021 and incorporated by reference herein).
3.8	Certificate of Designations, Preferences and Rights of a Series of Preferred Stock of Plug Power Inc. classifying and designating the Series A Junior Participating Cumulative Preferred Stock. (filed as Exhibit 3.1 to Plug Power Inc.’s Registration Statement on Form 8-A filed on June 24, 2009 and incorporated by reference herein).
3.9	Fifth Amended and Restated By-laws of Plug Power Inc. (filed as Exhibit 3.9 to Plug Power Inc.’s Annual Report on Form 10-K for the year ended December 31, 2022 and incorporated by reference herein).
10.1	Separation Agreement, dated April 1, 2023, between Plug Power Inc. and Dirk Ole Hoefelmann (filed as Exhibit 10.12 to the Plug Power Inc.’s Annual Report on Form 10-K/A for the year ended December 31, 2022 and incorporated by reference herein).
31.1*	Certification pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	Inline XBRL Instance Document
101.SCH*	Inline XBRL Taxonomy Extension Schema Document
101.CAL*	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*	Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE*	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104*	Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Submitted electronically herewith.

** Pursuant to Item 601(b)(32)(ii) of Regulation S-K, this certification is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

55

Signatures

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

	PLUG POWER INC.
Date:  May 9, 2023	By:	/s/ Andrew Marsh
		Andrew Marsh
		President, Chief Executive Officer and Director (Principal Executive Officer)
Date:  May 9, 2023	By:	/s/ Paul B. Middleton
		Paul B. Middleton
		Chief Financial Officer (Principal Financial Officer)

56

EX-31.1

Exhibit 31.1

I, Andrew Marsh, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Plug Power Inc.;

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 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 control 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: May 9, 2023

by:	/s/ Andrew Marsh
	Andrew Marsh
	Chief Executive Officer

EX-31.2

Exhibit 31.2

I, Paul B. Middleton, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Plug Power Inc.;

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 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 control 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: May 9, 2023

by:	/s/ Paul B. Middleton
	Paul B. Middleton
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Plug Power Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2023 as filed with the Securities and Exchange Commission (the “SEC”) on the date hereof (the “Report”), I, Andrew Marsh, Chief Executive Officer of the Company, certify, solely pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

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

This certification is being furnished and not filed, and shall not be incorporated into any documents for any other purpose, under the Securities Exchange Act of 1934, as amended or the Securities Act of 1933, as amended. A signed original of this written statement required by § 906 has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

ay

/s/ Andrew Marsh

Andrew Marsh

Chief Executive Officer

May 9, 2023

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Plug Power Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2023 as filed with the Securities and Exchange Commission (the “SEC”) on the date hereof (the “Report”), I, Paul B. Middleton, Chief Financial Officer of the Company, certify, solely pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

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

This certification is being furnished and not filed, and shall not be incorporated into any documents for any other purpose, under the Securities Exchange Act of 1934, as amended or the Securities Act of 1933, as amended. A signed original of this written statement required by § 906 has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

Ay

/s/ Paul B. Middleton

Paul B. Middleton

Chief Financial Officer

May 9, 2023

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 04, 2023
Document and Entity Information:
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-34392
Entity Registrant Name	PLUG POWER INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-3672377
Entity Address, Address Line One	968 ALBANY SHAKER ROAD
Entity Address, City or Town	LATHAM
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	12110
City Area Code	518
Local Phone Number	782-7700
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	PLUG
Security Exchange Name	NASDAQ
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		600,536,746
Entity Central Index Key	0001093691
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 474,861	$ 690,630
Restricted cash	175,978	158,958
Available-for-sale securities, at fair value (amortized cost of $1,045,731 and allowance for credit losses of $0 at March 31, 2023 and amortized cost of $1,355,614 and allowance for credit losses of $0 at December 31, 2022	1,028,371	1,332,943
Equity securities	139,911	134,836
Accounts receivable	127,720	129,450
Inventory	775,649	645,636
Contract assets	99,012	62,456
Prepaid expenses and other current assets	155,822	150,389
Total current assets	2,977,324	3,305,298
Restricted cash	722,467	699,756
Property, plant, and equipment, net	874,659	719,793
Right of use assets related to finance leases, net	56,708	53,742
Right of use assets related to operating leases, net	371,472	360,287
Equipment related to power purchase agreements and fuel delivered to customers, net	98,301	89,293
Contract assets	25,418	41,831
Goodwill	249,871	248,607
Intangible assets, net	203,740	207,725
Investments in non-consolidated entities and non-marketable equity securities	67,350	31,250
Other assets	6,783	6,694
Total assets	5,654,093	5,764,276
Current liabilities:
Accounts payable	188,149	191,895
Accrued expenses	167,754	156,430
Deferred revenue and other contract liabilities	137,357	131,813
Operating lease liabilities	52,859	48,861
Finance lease liabilities	8,622	8,149
Finance obligations	63,370	58,925
Current portion of long-term debt	5,228	5,142
Contingent consideration, loss accrual for service contracts, and other current liabilities	54,201	34,060
Total current liabilities	677,540	635,275
Deferred revenue and other contract liabilities	82,793	98,085
Operating lease liabilities	274,940	271,504
Finance lease liabilities	39,404	37,988
Finance obligations	279,444	270,315
Convertible senior notes, net	194,250	193,919
Long-term debt	3,799	3,925
Contingent consideration, loss accrual for service contracts, and other liabilities	180,273	193,051
Total liabilities	1,732,443	1,704,062
Stockholders' equity:
Common stock, $0.01 par value per share; 1,500,000,000 shares authorized; Issued (including shares in treasury): 611,951,626 at March 31, 2023 and 608,421,785 at December 31, 2022	6,120	6,084
Additional paid-in capital	7,360,887	7,297,306
Accumulated other comprehensive loss	(19,034)	(26,004)
Accumulated deficit	(3,327,472)	(3,120,911)
Less common stock in treasury: 18,245,914 at March 31, 2023 and 18,076,127 at December 31, 2022	(98,851)	(96,261)
Total stockholders' equity	3,921,650	4,060,214
Total liabilities and stockholders' equity	$ 5,654,093	$ 5,764,276

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Condensed Consolidated Balance Sheets
Amortized cost	$ 1,045,731	$ 1,355,614
Allowance for Credit Losses	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued	611,951,626	608,421,785
Common stock in treasury, shares	18,245,914	18,076,127

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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net revenue:
Net revenue	$ 210,286	$ 140,804
Cost of revenue:
Provision for loss contracts related to service	6,889	2,048
Total cost of revenue	279,682	176,153
Gross loss	(69,396)	(35,349)
Operating expenses:
Research and development	26,535	20,461
Selling, general and administrative	104,016	80,890
Impairment of long-lived assets	1,083
Change in fair value of contingent consideration	8,769	2,461
Total operating expenses	140,403	103,812
Operating loss	(209,799)	(139,161)
Interest income	17,632	2,054
Interest expense	(10,650)	(8,648)
Other expense, net	(4,771)	(1,309)
Realized loss on investments, net	(1)	(847)
Change in fair value of equity securities	5,075	(5,159)
Loss on equity method investments	(5,317)	(3,833)
Loss before income taxes	(207,831)	(156,903)
Income tax benefit	(1,270)	(414)
Net loss	$ (206,561)	$ (156,489)
Net loss per share:
Net loss per share, basic	$ (0.35)	$ (0.27)
Net loss per share, diluted	$ (0.35)	$ (0.27)
Weighted average number of common stock outstanding, basic	589,205,165	577,866,983
Weighted average number of common stock outstanding, diluted	589,205,165	577,866,983
Sales of equipment and related infrastructure
Net revenue:
Net revenue	$ 182,094	$ 108,847
Cost of revenue:
Cost of revenue	158,320	88,828
Services performed on fuel cell systems and related infrastructure
Net revenue:
Net revenue	9,097	8,240
Cost of revenue:
Cost of revenue	12,221	13,875
Power purchase agreements
Net revenue:
Net revenue	7,937	10,037
Cost of revenue:
Cost of revenue	46,816	31,753
Fuel delivered to customers and related equipment
Net revenue:
Net revenue	10,142	13,429
Cost of revenue:
Cost of revenue	54,501	39,272
Other
Net revenue:
Net revenue	1,016	251
Cost of revenue:
Cost of revenue	$ 935	$ 377

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Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Condensed Consolidated Statements of Comprehensive Loss
Net loss	$ (206,561)	$ (156,489)
Foreign currency translation (loss)/gain	1,659	(1,850)
Change in net unrealized loss on available-for-sale securities	5,311	(15,080)
Comprehensive loss attributable to the Company, net of tax	$ (199,591)	$ (173,419)

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Condensed Consolidated Statements of Stockholders Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Accumulated Deficit	Total
Balance at Dec. 31, 2021	$ 5,947	$ 7,070,710	$ (1,532)	$ (72,526)	$ (2,396,903)	$ 4,605,696
Balance (in shares) at Dec. 31, 2021	594,729,610			17,074,710
Increase (Decrease) in Stockholders' Equity
Net loss					(156,489)	(156,489)
Other comprehensive (loss) gain			(16,930)			(16,930)
Stock-based compensation	$ 2	43,384				43,386
Stock-based compensation (in shares)	226,221
Stock option exercises and issuance of common stock upon vesting of restricted stock units	$ 3	288				291
Stock option exercises and issuance of common stock upon vesting of restricted stock units (in shares)	253,525
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock units				$ (1,465)		(1,465)
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock (in shares)				71,627
Provision for common stock warrants		1,743				1,743
Balance at Mar. 31, 2022	$ 5,952	7,116,125	(18,462)	$ (73,991)	(2,553,392)	4,476,232
Balance (in shares) at Mar. 31, 2022	595,209,356			17,146,337
Balance at Dec. 31, 2022	$ 6,084	7,297,306	(26,004)	$ (96,261)	(3,120,911)	$ 4,060,214
Balance (in shares) at Dec. 31, 2022	608,421,785			18,076,127		608,421,785
Increase (Decrease) in Stockholders' Equity
Net loss					(206,561)	$ (206,561)
Other comprehensive (loss) gain			6,970			6,970
Stock-based compensation	$ 2	43,300				43,302
Stock-based compensation (in shares)	228,954
Stock option exercises and issuance of common stock upon vesting of restricted stock units	$ 6	668				674
Stock option exercises and issuance of common stock upon vesting of restricted stock units (in shares)	620,250
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock units				$ (2,590)		(2,590)
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock (in shares)				169,787
Exercise of warrants	$ 28	(28)
Exercise of warrants (in shares)	2,680,637
Provision for common stock warrants		19,641				19,641
Balance at Mar. 31, 2023	$ 6,120	$ 7,360,887	$ (19,034)	$ (98,851)	$ (3,327,472)	$ 3,921,650
Balance (in shares) at Mar. 31, 2023	611,951,626			18,245,914		611,951,626

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Operating activities
Net loss	$ (206,561)	$ (156,489)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of long-lived assets	9,789	2,842
Amortization of intangible assets	4,959	5,190
Stock-based compensation	43,302	43,386
Amortization of debt issuance costs and discount on convertible senior notes	621	661
Provision for common stock warrants	14,175	1,852
Deferred income tax benefit	947	414
Impairment of long-lived assets	1,083
Loss/(benefit) on service contracts	221	(7,297)
Fair value adjustment to contingent consideration	8,769	(2,461)
Net realized loss on investments	1	847
(Accretion) amortization of premium on available-for-sale securities	(5,945)	2,290
Lease origination costs	(2,660)	(1,613)
Change in fair value for equity securities	(5,075)	5,159
Loss on equity method investments	5,317	3,833
Changes in operating assets and liabilities that provide (use) cash:
Accounts receivable	1,730	36,170
Inventory	(129,572)	(63,702)
Contract assets	(14,677)	44
Prepaid expenses and other assets	(5,522)	(27,107)
Accounts payable, accrued expenses, and other liabilities	13,821	(25,096)
Deferred revenue and other contract liabilities	(9,748)	(28,014)
Net cash used in operating activities	(276,919)	(209,919)
Investing activities
Purchases of property, plant and equipment	(168,565)	(78,394)
Purchases of equipment related to power purchase agreements and equipment related to fuel delivered to customers	(11,389)	(6,796)
Purchase of available-for-sale securities		(114,173)
Proceeds from sales of available-for-sale securities		469,563
Proceeds from maturities of available-for-sale securities	315,827	67,430
Purchase of equity securities		(4,990)
Net cash paid for acquisitions		(26,473)
Cash paid for non-consolidated entities and non-marketable equity securities	(40,077)	(32,253)
Net cash provided by (used in) investing activities	95,796	273,914
Financing activities
Payments of contingent consideration	(2,000)	(2,667)
Payments of tax withholding on behalf of employees for net stock settlement of stock-based compensation	(2,590)	(1,465)
Proceeds from exercise of stock options	674	291
Principal payments on long-term debt	(330)	(19,246)
Proceeds from finance obligations	27,927	17,273
Principal repayments of finance obligations and finance leases	(16,500)	(12,427)
Net cash provided by (used in) financing activities	7,181	(18,241)
Effect of exchange rate changes on cash	(2,096)	634
(Decrease)/increase in cash and cash equivalents	(215,769)	14,345
Increase in restricted cash	39,731	32,043
Cash, cash equivalents, and restricted cash beginning of period	1,549,344	3,132,194	$ 3,132,194
Cash, cash equivalents, and restricted cash end of period	1,373,306	3,178,582	$ 1,549,344
Supplemental disclosure of cash flow information
Cash paid for interest, net of capitalized interest of $2.0 million	7,869	5,731
Summary of non-cash activity
Recognition of right of use asset - finance leases	4,018	8,070
Recognition of right of use asset - operating leases	22,470	20,070
Net tangible assets (liabilities) acquired (assumed) in a business combination		56,929
Intangible assets acquired in a business combination		60,522
Net transfers between inventory and long-lived assets	441	489
Accrued purchase of fixed assets, cash to be paid in subsequent period	$ 65,701	$ 6,707

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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Condensed Consolidated Statements of Cash Flows
Net capitalized interest	$ 2.0	$ 2.0

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Nature of Operations

3 Months Ended

Mar. 31, 2023

Nature of Operations

Nature of Operations

1.  Nature of Operations

Plug Power Inc. (the “Company,” “Plug,” “we” or “our”) is facilitating the paradigm shift to an increasingly electrified world by innovating cutting-edge hydrogen and fuel cell solutions. While we continue to develop commercially viable hydrogen and fuel cell product solutions, we have expanded our offerings to support a variety of commercial operations that can be powered with green hydrogen. We provide electrolyzers that allow customers — such as refineries, producers of chemicals, steel, fertilizer and commercial refueling stations — to generate hydrogen on-site. We are focusing our efforts on (a) industrial mobility applications, including electric forklifts and electric industrial vehicles, at multi-shift high volume manufacturing and high throughput distribution sites where we believe our products and services provide a unique combination of productivity, flexibility, and environmental benefits; (b) stationary power systems that will support critical operations, such as data centers, microgrids, and generation facilities, in either a backup power or continuous power role and replace batteries, diesel generators or the grid for telecommunication logistics, transportation, and utility customers; and (c) production of hydrogen. Plug expects to support these products and customers with an ecosystem of vertically integrated products that produce, transport, store and handle, dispense, and use hydrogen for mobility and power applications.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

2.  Summary of Significant Accounting Policies

Principles of Consolidation

The unaudited interim condensed consolidated financial statements include the financial statements of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. In addition, we include our share of the results of our joint venture with Renault SAS (“Renault”) named HyVia SAS, a French société par actions simplifiée (“HyVia”), AccionaPlug S.L. (AccionaPlug), and SK Plug Hyverse Co., Ltd. (“SK Plug Hyverse”), using the equity method based on our economic ownership interest and our ability to exercise significant influence over the operating and financial decisions of HyVia, AccionaPlug and SK Plug Hyverse. Additionally, we consolidate the results of our joint venture with Niloco Hydrogen Holdings LLC, a wholly-owned subsidiary of Olin Corporation (“Olin”), named “Hidrogenii”.

Interim Financial Statements

The accompanying unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, all adjustments, which consist solely of normal recurring adjustments, necessary to present fairly, in accordance with U.S. generally accepted accounting principles (“GAAP”), the financial position, results of operations and cash flows for all periods presented, have been made. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the full year.

Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “2022 Form 10-K”).

The information presented in the accompanying unaudited interim condensed consolidated balance sheets as of December 31, 2022 has been derived from the Company’s December 31, 2022 audited consolidated financial statements.

The unaudited interim condensed consolidated financial statements contained herein should be read in conjunction with our 2022 Form 10-K.

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

Other than the adoption of the accounting guidance mentioned in our 2022 Form 10-K, there have been no other significant changes in our reported financial position or results of operations and cash flows resulting from the adoption of new accounting pronouncements.

Recent Accounting Guidance Not Yet Effective

All issued but not yet effective accounting and reporting standards as of March 31, 2023 are either not applicable to the Company or are not expected to have a material impact on the Company.

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Acquisitions

3 Months Ended

Mar. 31, 2023

Acquisitions

Acquisitions

3. Acquisitions

Alloy Custom Products, LLC and WesMor Cryogenics, LLC

On December 5, 2022, the Company acquired two subsidiaries of Cryogenic Industrial Solutions, LLC, Alloy Custom Products, LLC and WesMor Cryogenics, LLC (collectively, “CIS”). The CIS acquisition is expected to increase the Company’s production capabilities for stainless steel and aluminum cryogenic transport truck-mounted cryogenic pressure vessels, cryogenic transport trailers, and other mobile storage containers.

The fair value of consideration paid by the Company in connection with the CIS acquisition was as follows (in thousands):

Cash	$	30,700
Due to Cryogenic Industrial Solutions, LLC		500
Plug Power Inc. Common Stock		6,107
Total consideration	$	37,307

The following table summarizes the preliminary allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Cash	$	267
Accounts receivable		5,038
Inventory		11,120
Prepaid expenses and other assets		464
Property, plant and equipment		3,887
Right of use asset		1,538
Identifiable intangible assets		13,430
Lease liability		(1,562)
Accounts payable, accrued expenses and other liabilities		(3,826)
Deferred revenue		(6,193)
Total net assets acquired, excluding goodwill	$	24,163

The preliminary allocation of the purchase price is considered provisional pending the finalization of the valuation for the assets acquired and liabilities assumed and related tax liabilities, if any, in relation to the CIS acquisition. Therefore, the fair values of the assets acquired and liabilities assumed are subject to change as we obtain additional information for valuation assumptions such as market demand for CIS product lines to support forecasted financial data, which will not exceed 12 months from the date of acquisition. There have been no measurement period adjustments recorded for the three months ended March 31, 2023.

The fair value of the tradename totaling $6.2 million was calculated using the relief from royalty approach which is a variant of the income approach, and was assigned a useful life of fifteen years. The fair value of the customer relationships totaling $7.1 million was calculated using the multi-period excess earnings method (“MPEEM”) approach which is a variant of the income approach, and was assigned a useful life of fifteen years. The basic principle of the MPEEM approach is that a single asset, in isolation, is not capable of generating cash flow for an enterprise. Several assets are brought together and exploited to generate cash flow. The fair value of the non-compete agreements was $0.2 million with a useful life of five years.  

The goodwill was primarily attributed to the value of synergies created with the Company’s current and future offerings and the value of the assembled workforce. Goodwill and intangible assets are not deductible for income tax purposes. Goodwill associated with the CIS acquisition was calculated as follows (in thousands):

Consideration paid	$	37,307
Less: net assets acquired		(24,163)
Total goodwill recognized	$	13,144

The acquisition of CIS contributed $11.1 million to total consolidated revenue for the three months ended March 31, 2023. The Company determined it immaterial to report net loss for the CIS acquisition for the three months ended March 31, 2023.

Joule Processing LLC

On January 14, 2022, the Company acquired Joule Processing LLC (“Joule”), an engineered modular equipment, process design and procurement company founded in 2009.

The fair value of consideration paid by the Company in connection with the Joule acquisition was as follows (in thousands):

Cash	$	28,140
Contingent consideration		41,732
Total consideration	$	69,872

The contingent consideration represents the estimated fair value associated with earn-out payments of up to $130 million that the sellers are eligible to receive in cash or shares of the Company’s common stock (at the Company’s election). Of the total earnout consideration, $90 million is related to the achievement of certain financial performance and $40 million is related to the achievement of certain internal operational milestones.

The following table summarizes the final allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Current assets	$	2,672
Property, plant and equipment		493
Right of use asset		182
Identifiable intangible assets		60,522
Lease liability		(374)
Current liabilities		(2,612)
Contract liability		(3,818)
Total net assets acquired, excluding goodwill	$	57,065

The fair value of the developed technology totaling $59.2 million included in the identifiable intangible assets was calculated using the MPEEM approach. Therefore, to determine cash flow from the developed technology over its useful life of 15 years, one must deduct the related expenses incurred for the exploitation of other assets used for the generation of overall cash flow. The fair value of the tradename totaling $0.8 million was calculated using the relief from

royalty approach, which is a variant of the income approach, and was assigned a useful life of four years. The fair value of the non-compete agreements was $0.5 million with a useful life of six years.

In addition to identifiable intangible assets, the fair value of acquired work in process and finished goods inventory, included in inventory, was estimated based on the estimated selling price less costs to be incurred and a market participant profit rate.

In connection with the acquisition, the Company recorded on its consolidated balance sheet a liability of $41.7 million representing the fair value of contingent consideration payable, and is recorded in the unaudited interim condensed consolidated balance sheet in contingent consideration, loss accrual for service contracts, and other current liabilities. The fair value of this contingent consideration was $59.9 million and $53.2 million as of March 31, 2023 and December 31, 2022, respectively, and as a result $6.7 million reduction was recorded in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

Included in the purchase price consideration are contingent earn-out payments as described above. Due to the nature of the earn-outs, a scenario-based analysis using the probability of achieving the milestone expectations was used to determine the fair value of the contingent consideration. These fair value measurements were based on unobservable inputs and are considered to be level 3 financial instruments.

The goodwill was primarily attributed to the value of synergies created with the Company’s current and future offerings and the value of the assembled workforce. Goodwill and intangible assets are not deductible for income tax purposes. Goodwill associated with the Joule acquisition was calculated as follows (in thousands):

Consideration paid	$	28,140
Contingent consideration		41,732
Less: net assets acquired		(57,065)
Total goodwill recognized	$	12,807

The acquisition of Joule contributed $20.7 million and $1.4 million to total consolidated revenue for the three months ended March 31, 2023 and 2022, respectively. The Company determined it immaterial to report net loss for the Joule acquisition for the three months ended March 31, 2023.

The CIS and Joule acquisitions were not material to our consolidated results of operations or financial position and, therefore, pro forma financial information is not presented.

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Extended Maintenance Contracts

3 Months Ended

Mar. 31, 2023

Extended Maintenance Contracts

Extended Maintenance Contracts

4. Extended Maintenance Contracts

On a quarterly basis, we evaluate any potential losses related to our extended maintenance contracts for fuel cell systems, related infrastructure and equipment that have been sold. The following table shows the roll forward of balances in the accrual for loss contracts, including changes due to the provision for loss accrual, loss accrual acquired from acquisition, releases to service cost of sales, releases due to the provision for warrants, and foreign currency translation adjustment (in thousands):

	Three months		Year
	ended		ended
	March 31, 2023		December 31, 2022
Beginning balance	$	81,066	$	89,773
Provision for loss accrual		6,981		23,295
Releases to service cost of sales		(6,668)		(35,446)
Increase/(decrease) to loss accrual related to customer warrants		(92)		3,506
Foreign currency translation adjustment		25		(62)
Ending balance	$	81,312	$	81,066

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Earnings Per Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share

Earnings Per Share

5. Earnings Per Share

Basic earnings per common stock are computed by dividing net loss attributable to common stockholders by the weighted average number of common stock outstanding during the reporting period. In periods when we have net income, the shares of our common stock subject to the convertible notes outstanding during the period will be included in our diluted earnings per share under the if-converted method. Since the Company is in a net loss position, all common stock equivalents would be considered anti-dilutive and are therefore not included in the determination of diluted earnings per share. Accordingly, basic and diluted loss per share are the same.

The potentially dilutive securities are summarized as follows:

	At March 31,
	2023	2022
Stock options outstanding (1)	27,479,533	24,185,000
Restricted stock and restricted stock units outstanding (2)	5,888,013	5,439,207
Common stock warrants (3)	85,879,175	80,017,181
Convertible Senior Notes (4)	39,170,766	39,170,766
Number of dilutive potential shares of common stock	158,417,487	148,812,154

(1) During the three months ended March 31, 2023 and 2022, the Company granted options for 94,550 and 451,500 shares of common stock, respectively.

(2) During the three months ended March 31, 2023 and 2022, the Company granted 94,550 and 802,500 shares of restricted stock and restricted stock units, respectively.

(3) In August 2022, the Company issued a warrant to acquire up to 16,000,000 shares of the Company’s common stock as part of a transaction agreement with Amazon.com, Inc. (“Amazon”), subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had not been exercised as of March 31, 2023.  

In April 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Amazon, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.  

In July 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Walmart, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.

(4) In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due 2023 (the “5.5% Convertible Senior Notes”).  In May 2020, the Company repurchased $66.3 million of the 5.5% Convertible Senior Notes and in the fourth quarter of 2020, $33.5 million of the 5.5% Convertible Senior Notes were converted into approximately 14.6 million shares of common stock. The remaining $0.2 million aggregate principal amount of the 5.5% Convertible Senior Notes were converted into 69,808 shares of common stock in January 2021. In May 2020, the Company issued $212.5 million in aggregate principal amount of the 3.75% Convertible Senior Notes due 2025 (the “3.75% Convertible Senior Notes).  There were no conversions for the three months ended March 31, 2023 and 2022.

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Inventory

3 Months Ended

Mar. 31, 2023

Inventory

Inventory

6. Inventory

Inventory as of March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Raw materials and supplies - production locations	$	550,315	$	450,432
Raw materials and supplies - customer locations		21,765		18,860
Work-in-process		139,013		112,231
Finished goods		64,556		64,113
Inventory	$	775,649	$	645,636

As of March 31, 2023 and December 31, 2022, the reserve for excess and obsolete inventory was $5.4 million.

Inventory is primarily comprised of raw materials, work-in-process, and finished goods. The increase in inventory is primarily due to a combination of new product offerings, as well as increased revenue and orders.

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Property, Plant and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment

Property, Plant and Equipment

7. Property, Plant and Equipment

Property, plant and equipment at March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31, 2023		December 31, 2022
Land	$	1,772	$	1,772
Construction in progress		697,456		575,141
Building and leasehold improvements		40,548		21,363
Software, machinery, and equipment		188,530		169,633
Property, plant, and equipment		928,306		767,909
Less: accumulated depreciation		(53,647)		(48,116)
Property, plant, and equipment, net	$	874,659	$	719,793

Construction in progress is primarily comprised of construction of five hydrogen production plants, the Gigafactory in Rochester, NY, and our facility in the Slingerlands, NY.  Completed assets are transferred to their respective asset classes, and depreciation begins when an asset is ready for its intended use. Interest on outstanding debt is capitalized during periods of capital asset construction and amortized over the useful lives of the related assets. During the three months ended March 31, 2023 and 2022, the Company capitalized $2.0 million and $4.3 million of interest, respectively.

Depreciation expense related to property, plant and equipment was $5.5 million and $2.6 million for the three months ended March 31, 2023 and 2022, respectively.

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Intangible Assets and Goodwill

3 Months Ended

Mar. 31, 2023

Intangible Assets and Goodwill

Intangible Assets and Goodwill

8. Intangible Assets and Goodwill

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of March 31, 2023 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,389		(14,746)	$	89,643
Dry stack electrolyzer technology	10 years		29,000		(3,142)		25,858
Customer relationships, Non-compete agreements, Backlog & Trademark	12 years		103,325		(15,086)		88,239
		$	236,714	$	(32,974)	$	203,740

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of December 31, 2022 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,221	$	(12,754)	$	91,467
Dry stack electrolyzer technology	10 years		29,000		(2,417)		26,583
Customer relationships, Non-compete agreements, Backlog & Trademark	13 years		102,521		(12,846)		89,675
		$	235,742	$	(28,017)	$	207,725

The change in the gross carrying amount of the acquired technology from December 31, 2022 to March 31, 2023 was primarily due to changes in foreign currency translation.

Amortization expense for acquired identifiable intangible assets for the three months ended March 31, 2023 and 2022 was $5.0 million and $5.2 million, respectively.

The estimated amortization expense for subsequent years is as follows (in thousands):

Remainder of 2023	$	14,347
2024		19,069
2025		18,294
2026		16,702
2027		16,694
2028 and thereafter		118,634
Total	$	203,740

Goodwill was $249.9 million and $248.6 million as of March 31, 2023 and December 31, 2022, which primarily increased due to foreign currency translation adjustments for goodwill associated with our international subsidiaries. 

The change in the carrying amount of goodwill for the three months ended March 31, 2023 was as follows (in thousands):

Beginning balance at December 31, 2022	$	248,607
Foreign currency translation adjustment		1,264
Ending balance at March 31, 2023	$	249,871

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Long-Term Debt

3 Months Ended

Mar. 31, 2023

Long-Term Debt

Long-Term Debt

9. Long-Term Debt

In March 2019, the Company entered into a loan and security agreement, as amended, with Generate Lending, LLC, providing for a secured term loan facility in the amount of $100 million (the “Term Loan Facility”). In December 2022, the Company fully repaid the outstanding balance of the Term Loan Facility.

In June 2020, the Company acquired debt as part of its acquisition of United Hydrogen Group Inc. The outstanding carrying value of the debt was $9.0 million as of March 31, 2023. The outstanding principal on the debt was $11.1 million and the unamortized debt discount was $2.1 million, bearing varying interest rates ranging from 2.2% to 8.3%.  The debt is scheduled to mature in 2026. As of March 31, 2023, the principal balance is due at each of the following dates as follows (in thousands):

December 31, 2023	$	5,660
December 31, 2024		3,357
December 31, 2025		1,200
December 31, 2026		900
	$	11,117

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Convertible Senior Notes

3 Months Ended

Mar. 31, 2023

Convertible Senior Notes.

Convertible Senior Notes

10. Convertible Senior Notes

3.75% Convertible Senior Notes

On May 18, 2020, the Company issued $200.0 million in aggregate principal amount of 3.75% Convertible Senior Notes due June 1, 2025, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). On May 29, 2020, the Company issued an additional $12.5 million in aggregate principal amount of 3.75% Convertible Senior Notes. During the three months ended March 31, 2023, there were no conversions of the 3.75% Convertible Senior Notes.

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Principal amounts:
Principal	$	197,278	$	197,278
Unamortized debt issuance costs (1)		(3,028)		(3,359)
Net carrying amount	$	194,250	$	193,919

1) Included in the unaudited interim condensed consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

The following table summarizes the total interest expense and effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for the effective interest rate):

	March 31,			March 31,
	2023			2022
Interest expense	$	1,849	$	1,849
Amortization of debt issuance costs		331		316
Total		2,180		2,165
Effective interest rate		4.5%		4.5%

Based on the closing price of the Company’s common stock of $11.72 on March 31, 2023, the if-converted value of the notes was greater than the principal amount. The estimated fair value of the note at March 31, 2023 was approximately $433.6 million. The fair value estimation was primarily based on an active stock exchange trade on March 29, 2023 of the 3.75% Convertible Senior Notes.

Capped Call

In conjunction with the pricing of the 3.75% Convertible Senior Notes, the Company entered into privately negotiated capped call transactions (the “3.75% Notes Capped Call”) with certain counterparties at a price of $16.2 million. The 3.75% Notes Capped Call covers, subject to anti-dilution adjustments, the aggregate number of shares of the Company’s common stock that underlie the initial 3.75% Convertible Senior Notes and is generally expected to reduce potential dilution to the Company’s common stock upon any conversion of the 3.75% Convertible Senior Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the converted notes, as the case may be, with such reduction and/or offset subject to a cap based on the cap price. The cap price of the 3.75% Notes Capped Call is initially $6.7560 per share, which represents a premium of approximately 60% over the last then-reported sale price of the Company’s common stock of $4.11 per share on the date of the transaction and is subject to certain adjustments under the terms of the 3.75% Notes Capped Call. The 3.75% Notes Capped Call becomes exercisable if the conversion option is exercised.

The net cost incurred in connection with the 3.75% Notes Capped Call were recorded as a reduction to additional paid-in capital in the unaudited interim condensed consolidated balance sheets. The book value of the 3.75% Notes Capped Call is not remeasured.

Common Stock Forward

In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due on March 15, 2023, in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act, which have been fully repaid.  In connection with the issuance of the 5.5% Convertible Senior Notes, the Company entered into a forward stock purchase transaction (the “Common Stock Forward”), pursuant to which the Company agreed to purchase 14,397,906 shares of its common stock for settlement on or about March 15, 2023. On May 18, 2020, the Company amended and extended the maturity of the Common Stock Forward to June 1, 2025.  The number of shares of common stock that the Company will ultimately repurchase under the Common Stock Forward is subject to customary anti-dilution adjustments. The Common Stock Forward is subject to early settlement or settlement with alternative consideration in the event of certain corporate transactions.

The net cost incurred in connection with the Common Stock Forward of $27.5 million was recorded as an increase in treasury stock in the unaudited interim condensed consolidated balance sheets. The related shares were accounted for as a repurchase of common stock. The book value of the Common Stock Forward is not remeasured.

There were no shares of common stock settled in connection with the Common Stock Forward during the three months ended March 31, 2023 or during the three months ended March 31, 2022.

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Stockholders' Equity

3 Months Ended

Mar. 31, 2023

Stockholders' Equity

Stockholders' Equity

11.  Stockholders’ Equity

Common Stock and Warrants

On August 24, 2022, a warrant to purchase up to 16,000,000 shares of common stock was issued in connection with a transaction agreement with Amazon, as discussed in Note 12, “Warrant Transaction Agreements.”  This warrant is measured at fair value at the time of grant or modification and is classified as an equity instrument on the unaudited interim condensed consolidated balance sheets.

Accumulated Other Comprehensive Income

Accumulated Other Comprehensive Income comprises the following (in thousands):

	Gains and Losses on		Unrealized Gains and Losses on		Foreign
	Available-For-Sale		Available-For-Sale		Currency
	Securities		Securities		Items		Total
December 31, 2022	$	(749)	$	(19,472)	$	(5,783)	$	(26,004)
Net current-period other comprehensive loss		—		5,311		1,659		6,970
March 31, 2023	$	(749)	$	(14,161)	$	(4,124)	$	(19,034)
December 31, 2021	$	(150)	$	(67)	$	(1,315)	$	(1,532)
Net current-period other comprehensive loss		—		(15,080)		(1,850)		(16,930)
March 31, 2022	$	(150)	$	(15,147)	$	(3,165)	$	(18,462)

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Warrant Transaction Agreements

3 Months Ended

Mar. 31, 2023

Warrant Transaction Agreements

Warrant Transaction Agreements

12. Warrant Transaction Agreements

Amazon Transaction Agreement in 2022

On August 24, 2022, the Company and Amazon entered into a Transaction Agreement (the “2022 Transaction Agreement”), under which the Company concurrently issued to Amazon.com NV Investment Holdings LLC, a wholly owned subsidiary of Amazon, a warrant (the “Amazon Warrant”) to acquire up to 16,000,000 shares (the “Amazon Warrant Shares”) of the Company’s common stock, subject to certain vesting events described below. The Company and Amazon entered into the 2022 Transaction Agreement in connection with a concurrent commercial arrangement under which Amazon agreed to purchase hydrogen fuel from the Company through August 24, 2029.

1,000,000 of the Amazon Warrant Shares vested immediately upon issuance of the Amazon Warrant. 15,000,000 of the Amazon Warrant Shares will vest in multiple tranches over the 7-year term of the Amazon Warrant based on payments made to the Company directly by Amazon or its affiliates, or indirectly through third parties, with 15,000,000 of the Amazon Warrant Shares fully vesting if Amazon-related payments of $2.1 billion are made in the aggregate. The exercise price for the first 9,000,000 Amazon Warrant Shares is $22.9841 per share and the fair value on the grant date was $20.36. The exercise price for the remaining 7,000,000 Amazon Warrant Shares will be an amount per share equal to 90% of the 30-day volume weighted average share price of the Company’s common stock as of the final vesting event that results in full vesting of the first 9,000,000 Amazon Warrant Shares. The Amazon Warrant is exercisable through August 24, 2029.

Upon the consummation of certain change of control transactions (as defined in the applicable warrant) prior to the vesting of at least 60% of the aggregate Amazon Warrant Shares, the Amazon Warrant will automatically vest and become exercisable with respect to an additional number of Amazon Warrant Shares such that 60% of the aggregate Amazon Warrant Shares shall have vested. If a change of control transaction is consummated after the vesting of at least 60% of the aggregate Amazon Warrant Shares, then no acceleration of vesting will occur with respect to any of the unvested Amazon Warrant Shares as a result of the transaction. The exercise price and the Amazon Warrant Shares issuable upon exercise of the Amazon Warrant are subject to customary antidilution adjustments.

At March 31, 2023, 1,000,000 of the Amazon Warrant Shares issued pursuant to the 2022 Transaction Agreement had vested upon issuance. The warrant fair value associated with the vested shares of $20.4 million was capitalized to contract assets in our condensed consolidated unaudited interim financial statements based on the grant date fair value and is subsequently amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The grant date fair value of tranches 2 and 3 will also be amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. Because the exercise price has yet to be determined, the fair value of tranche 4 will be remeasured at each reporting period end and amortized ratably as a reduction to revenue based on the Company’s estimate of revenue over the term of the agreement. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Amazon Warrant during the three months ended March 31, 2023 was $1.1 million.

The assumptions used to calculate the valuations as of August 24, 2022 and March 31, 2023 are as follows:

	Tranches 1-3	Tranche 4
	August 24, 2022	March 31, 2023
Risk-free interest rate	3.15%	3.50%
Volatility	75.00%	75.00%
Expected average term	7 years	4 years
Exercise price	$22.98	$10.55
Stock price	$20.36	$11.72

Amazon Transaction Agreement in 2017

On April 4, 2017, the Company and Amazon entered into a Transaction Agreement (the “2017 Amazon Transaction Agreement”), pursuant to which the Company agreed to issue to Amazon.com NV Investment Holdings LLC, a warrant to acquire up to 55,286,696 Amazon Warrant Shares, subject to certain vesting events described below. The Company and Amazon entered into the 2017 Amazon Transaction Agreement in connection with existing commercial agreements between the Company and Amazon with respect to the deployment of the Company’s GenKey fuel cell technology at Amazon distribution centers. The vesting of the Amazon Warrant Shares was conditioned upon payments made by Amazon or its affiliates (directly or indirectly through third parties) pursuant to the existing commercial agreements. At December 31, 2021, all 55,286,696 of the Amazon Warrant Shares had vested.  

The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022, respectively.

Walmart Transaction Agreement

On July 20, 2017, the Company and Walmart entered into a Transaction Agreement (the “Walmart Transaction Agreement”), pursuant to which the Company agreed to issue to Walmart a warrant (the “Walmart Warrant”) to acquire up to 55,286,696 shares of the Company’s common stock, subject to certain vesting events (the “Walmart Warrant Shares”). The Company and Walmart entered into the Walmart Transaction Agreement in connection with existing commercial agreements between the Company and Walmart with respect to the deployment of the Company’s GenKey fuel cell technology across various Walmart distribution centers. The existing commercial agreements contemplate, but do not guarantee, future purchase orders for the Company’s fuel cell technology. The vesting of the warrant shares was conditioned upon payments made by Walmart or its affiliates (directly or indirectly through third parties) pursuant to transactions entered into after January 1, 2017 under existing commercial agreements.

The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and December 31, 2022.

At March 31, 2023 and December 31, 2022, 27,643,347 of the Walmart Warrant Shares had vested. The total amount of provision for common stock warrants recorded as a reduction of revenue for the Walmart Warrant during the three months ended March 31, 2023 and 2022 was $12.9 million and $1.7 million, respectively. During the three months ended March 31, 2023 and 2022, there were no exercises with respect to the Walmart Warrant.

The assumptions used to calculate the valuations of the final tranche of the Walmart Warrant as of March 31, 2023 are as follows:

	March 31, 2023
Risk-free interest rate	3.55%
Volatility	75.00%
Expected average term	3.5 years
Exercise price	$10.55
Stock price	$11.72

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Revenue

3 Months Ended

Mar. 31, 2023

Revenue

Revenue

13. Revenue

Disaggregation of revenue

The following table provides information about disaggregation of revenue (in thousands):

Major products/services lines
	Three months ended
	March 31,
	2023		2022
Sales of fuel cell systems	$	28,852	$	37,528
Sales of hydrogen infrastructure		48,868		27,089
Sales of electrolyzers		40,032		4,059
Sales of engineered equipment		7,753		21,968
Services performed on fuel cell systems and related infrastructure		9,097		8,240
Power Purchase Agreements		7,937		10,037
Fuel delivered to customers and related equipment		10,142		13,429
Sales of cryogenic equipment and other		56,589		18,203
Other		1,016		251
Net revenue	$	210,286	$	140,804

Contract balances

The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):

	March 31,		December 31,
	2023		2022
Accounts receivable	$	127,720	$	129,450
Contract assets		124,430		104,287
Deferred revenue and contract liabilities		220,150		229,898

Contract assets relate to contracts for which revenue is recognized on a straight-line basis; however, billings escalate over the life of a contract. Contract assets also include amounts recognized as revenue in advance of billings to customers, which are dependent upon the satisfaction of another performance obligation. These amounts are included in contract assets on the accompanying unaudited interim condensed consolidated balance sheets.

The contract liabilities relate to the advance consideration received from customers for services that will be recognized over time (primarily fuel cell and related infrastructure services) and advance consideration received from customers prior to delivery of products. These amounts are included within deferred revenue and other contract liabilities on the unaudited interim condensed consolidated balance sheets.

Significant changes in the contract assets and the contract liabilities balances during the period are as follows (in thousands):

Contract assets
	March 31,		December 31,
	2023		2022
Transferred to receivables from contract assets recognized at the beginning of the period	$	(19,709)	$	(33,394)
Contract assets related to warrants		5,577		26,455
Revenue recognized and not billed as of the end of the period		34,275		72,469
Net change in contract assets	$	20,143	$	65,530

Deferred revenue and contract liabilities
	March 31,		December 31,
	2023		2022
Increases due to cash received, net of amounts recognized as revenue during the period	$	80,740	$	200,347
Contract liabilities assumed as part of acquisitions		—		10,011
Revenue recognized that was included in the contract liability balance as of the beginning of the period		(90,488)		(163,550)
Net change in deferred revenue and contract liabilities	$	(9,748)	$	46,808

Estimated future revenue

The following table includes estimated revenue included in the backlog expected to be recognized in the future (sales of fuel cell systems, equipment, and hydrogen installations are expected to be recognized as revenue within one year; sales of services, Power Purchase Agreements (“PPAs”), and fuel are expected to be recognized as revenue over five to ten years) related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period, including provision for common stock warrants (in thousands):

	March 31,
	2023
Sales of fuel cell systems	$	53,578
Sales of hydrogen installations and other infrastructure		21,807
Sales of electrolyzers		281,720
Sales of engineered equipment		16,628
Services performed on fuel cell systems and related infrastructure		121,418
Power Purchase Agreements		385,096
Fuel delivered to customers and related equipment		92,470
Sales of cryogenic equipment		121,657
Total estimated future revenue	$	1,094,374

Contract costs

Contract costs consist of capitalized commission fees and other expenses related to obtaining or fulfilling a contract. Capitalized contract costs at March 31, 2023 and December 31, 2022 were $0.6 million.

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Income Taxes

3 Months Ended

Mar. 31, 2023

Income Taxes

Income Taxes

14. Income Taxes

The Company recorded $1.3 million and $0.4 million of income tax benefit for the three months ended March 31, 2023 and 2022, respectively. The Company has not changed its overall conclusion with respect to the need for a valuation allowance against its domestic net deferred tax assets, which remain fully reserved.

The domestic net deferred tax asset generated from the Company’s net operating loss has been offset by a full valuation allowance because it is more likely than not that the tax benefits of the net operating loss carry forward will not be realized. The Company recognizes accrued interest and penalties related to unrecognized tax benefits, if any, as a component of income tax expense.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Measurements

Fair Value Measurements

15. Fair Value Measurements

The Company records the fair value of assets and liabilities in accordance with ASC 820, Fair Value Measurement (“ASC 820”). ASC 820 defines fair value as the price received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. The fair value should be calculated based on assumptions that market participants would use in pricing the asset or liability, not on assumptions specific to the entity.

In addition to defining fair value, ASC 820 expands the disclosure requirements around fair value and establishes a fair value hierarchy for valuation inputs. The hierarchy prioritizes the inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of the three levels, which is determined by the lowest level input that is significant to the fair value measurement in its entirety.

These levels are:

● Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities.

● Level 2 — quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument.

● Level 3 — unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability at fair value.

Securities reported at fair value utilizing Level 1 inputs represent assets whose fair value is determined based upon observable unadjusted quoted market prices for identical assets in active markets. Level 2 securities represent assets whose fair value is determined using observable market information such as previous day trade prices, quotes from less active markets or quoted prices of securities with similar characteristics.  Available-for-sale securities are characterized as Level 2 assets, as their fair values are determined using observable market inputs. Equity securities are characterized as Level 1 assets, as their fair values are determined using active markets for identical assets. There were no transfers between Level 1, Level 2, or Level 3 for the three months ended March 31, 2023.

Financial instruments not recorded at fair value on a recurring basis include equity method investments that have not been remeasured or impaired in the current period, such as our investments in HyVia, AccionaPlug, and SK Plug Hyverse. During the three months ended March 31, 2023, the Company contributed approximately $40.1 million to HyVia, AccionaPlug and SK Plug Hyverse.

Assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands):

	As of March 31, 2023
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	208,358	$	208,358	$	208,358	$	—	$	—
Corporate bonds		163,863		163,863		—		163,863		—
U.S. Treasuries		864,508		864,508		864,508		—		—
Equity securities		139,911		139,911		139,911		—		—
Liabilities
Contingent consideration		123,473		123,473		—		—		123,473

	As of December 31, 2022
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	212,577	$	212,577	$	212,577	$	—	$	—
Corporate bonds		193,633		193,633		—		193,633		—
U.S. Treasuries		1,139,310		1,139,310		1,139,310		—		—
Equity securities		134,836		134,836		134,836		—		—
Liabilities
Contingent consideration		116,165		116,165		—		—		116,165

The liabilities measured at fair value on a recurring basis that have unobservable inputs and are therefore categorized as level 3 are related to contingent consideration. The fair value as of March 31, 2023 of $123.5 million is comprised of $59.9 million related to the acquisition of Joule, as well as $63.6 million from the Frames Holding B.V. (“Frames”) and Applied Cryo Technologies, Inc. (“Applied Cryo”) acquisitions in 2021 and the Giner ELX, Inc. and United Hydrogen Group Inc. acquisition in 2020.

In connection with the Applied Cryo acquisition, the Company recorded on its consolidated balance sheet an initial liability of $14.0 million representing the fair value of contingent consideration payable, and is recorded in the unaudited interim condensed consolidated balance sheet in contingent consideration, loss accrual for service contracts, and other current liabilities. The fair value of this contingent consideration was $19.0 million and $15.9 million as of March 31, 2023 and December 31, 2022, respectively, and as a result a $3.1 million increase was recorded due to a settlement with the sellers. We expect $19.0 million to be paid to the sellers in the second quarter of 2023.

In connection with the Frames acquisition, the Company recorded on its consolidated balance sheet a liability of $29.1 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $29.7 million and $31.0 million as of March 31, 2023 and December 31, 2022, respectively. The change in fair value compared to December 31, 2022 was due to a change in the foreign currency translation, partially offset by an decrease in the liability. The Company recorded an adjustment of $1.3 million for the three months ended March 31,

2023 in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations.

In connection with the Giner ELX, Inc. acquisition the Company recorded on its consolidated balance sheet a liability of $16.0 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $13.3 million and $14.5 million as of March 31, 2023 and December 31, 2022, respectively, and as a result, a $1.3 million decrease was recorded in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

In connection with the United Hydrogen Group Inc. acquisition the Company recorded on its consolidated balance sheet a liability of $1.1 million representing the fair value of contingent consideration payable. The fair value of this contingent consideration was $1.6 million and $1.5 million as of March 31, 2023 and December 31, 2022, respectively, and, as a result, a $0.1 million increase was recorded in change in fair value of contingent consideration in the unaudited interim condensed consolidated statement of operations for the three months ended March 31, 2023.

In the unaudited interim condensed consolidated balance sheets, contingent consideration is recorded in the contingent consideration, loss accrual for service contracts, and other current liabilities financial statement line item, and is comprised of the following unobservable inputs for the three months ending March 31, 2023:

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	87,049	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,880	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		24,544	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	123,473

In the unaudited interim condensed consolidated balance sheets, contingent consideration is recorded in the contingent consideration, loss accrual for service contracts, and other current liabilities financial statement line item, and is comprised of the following unobservable inputs for the twelve months ending December 31, 2022:

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	85,269	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,310	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		19,586	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	116,165

The change in the carrying amount of Level 3 liabilities for the three month period ended March 31, 2023 was as follows (in thousands):

	Three months ended
	March 31, 2023
Beginning balance at December 31, 2022	$	116,165
Payments		(2,000)
Fair value adjustments		8,769
Foreign currency translation adjustment		539
Ending balance at March 31, 2023	$	123,473

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Investments

3 Months Ended

Mar. 31, 2023

Investments

Investments

16. Investments

The fair values of the Company’s investments are based upon prices provided by an independent pricing service provider. Management has assessed and concluded that these prices are reasonable and has not adjusted any prices received from the independent pricing service provider.

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	169,804	$	15	$	(5,956)	$	163,863		—
U.S. Treasuries		875,927		106		(11,525)		864,508		—
Total	$	1,045,731	$	121	$	(17,481)	$	1,028,371	$	—

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	200,735	$	7	$	(7,109)	$	193,633		—
U.S. Treasuries		1,154,879		111		(15,680)		1,139,310		—
Total	$	1,355,614	$	118	$	(22,789)	$	1,332,943	$	—

The following table summarizes the fair value and gross unrealized losses on securities classified as available-for-sale, and length of time that the individual securities have been in a continuous loss position as of March 31, 2023 (in thousands):

	March 31, 2023
	Less than 12 months				12 months or greater				Total
	Fair Value of				Fair Value of				Fair Value of
	Investments with		Gross Unrealized		Investments with		Gross Unrealized		Investments with		Gross Unrealized
	Unrealized Losses		Losses		Unrealized Losses		Losses		Unrealized Losses		Losses
Corporate bonds	$	8,794	$	(226)	$	141,875	$	(5,730)	$	150,669	$	(5,956)
U.S. Treasuries		24,884		(94)		307,587		(11,431)		332,471		(11,525)
Total available-for-sale securities	$	33,678	$	(320)	$	449,462	$	(17,161)	$	483,140	$	(17,481)

We regularly review available-for-sale securities for declines in fair values that we determine to be credit related. In order to determine whether an allowance for credit losses was required, we considered factors such as whether amounts related to securities have become uncollectible, whether we intend to sell a security, and whether it is more likely than not that we will be required to sell a security prior to recovery. The Company also reviewed the declines in market value

related to our available-for-sale securities and determined that these declines were due to fluctuations in interest rates. As of March 31, 2023, the Company did not have an allowance for credit losses related to available-for-sale securities.

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$		$	(2,245)	$	68,012
Exchange traded mutual funds		76,000				(4,101)		71,899
Total	$	146,257	$	—	$	(6,346)	$	139,911

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$	—	$	(2,620)	$	67,637
Exchange traded mutual funds		75,999		—		(8,800)		67,199
Total	$	146,256	$	—	$	(11,420)	$	134,836

A summary of the amortized cost and fair value of investments classified as available-for-sale, by contractual maturity, as of March 31, 2023 and December 31, 2022 was as follows (in thousands):

	March 31, 2023				December 31, 2022
	Amortized		Fair		Amortized		Fair
Maturity:	Cost		Value		Cost		Value
Less than 12 months	$	817,369	$	810,898	$	1,045,120	$	1,039,333
12 months or greater		228,362		217,473		310,494		293,610
Total	$	1,045,731	$	1,028,371	$	1,355,614	$	1,332,943

Accrued interest income was $2.4 million and $3.0 million at March 31, 2023 and December 31, 2022, respectively, and included within the balance for prepaid expenses and other current assets in the unaudited interim condensed consolidated balance sheets.

Equity Method Investments

As of March 31, 2023 and December 31, 2022, the Company accounted for the following investments in the investee’s common stock under the equity method, which are included in the investments in non-consolidated entities and non-marketable equity securities on the interim unaudited condensed consolidated balance sheets (amounts in thousands):

		As of March 31, 2023			As of December 31, 2022
	Formation	Common Stock	Carrying		Common Stock	Carrying
Investee	Date	Ownership %	Value		Ownership %	Value
HyVia	Q2 2021	50%	$	29,722	50%	$	11,281
AccionaPlug S.L.	Q4 2021	50%		1,941	50%		2,225
SK Plug Hyverse	Q1 2022	49%		26,719	49%		8,937
			$	58,382		$	22,443

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Operating and Finance Lease Liabilities

3 Months Ended

Mar. 31, 2023

Operating and Finance Lease Liabilities

Operating and Finance Lease Liabilities

17.  Operating and Finance Lease Liabilities

As of March 31, 2023, the Company had operating leases, as lessee, primarily associated with sale/leaseback transactions that are partially secured by restricted cash, security deposits and pledged escrows (see also Note 1, “Nature

of Operations”) as summarized below.  These leases expire over the next one to nine years. Minimum rent payments under operating leases are recognized on a straight-line basis over the term of the lease.  

Leases contain termination clauses with associated penalties, the amount of which cause the likelihood of cancellation to be remote.  At the end of the lease term, the leased assets may be returned to the lessor by the Company, the Company may negotiate with the lessor to purchase the assets at fair market value, or the Company may negotiate with the lessor to renew the lease at market rental rates.  No residual value guarantees are contained in the leases.  No financial covenants are contained within the lease; however, the lease contains customary operational covenants such as the requirement that the Company properly maintain the leased assets and carry appropriate insurance. The leases include credit support in the form of either cash, collateral or letters of credit.  See Note 19, “Commitments and Contingencies” for a description of cash held as security associated with the leases.    

The Company has finance leases associated with its property and equipment in Latham, New York and at fueling customer locations.  The fair value of this finance obligation approximated the carrying value as of March 31, 2023.

Future minimum lease payments under operating and finance leases (with initial or remaining lease terms in excess of one year) as of March 31, 2023 were as follows (in thousands):

			Finance		Total
	Operating Lease		Lease		Lease
	Liability		Liability		Liabilities
Remainder of 2023	$	64,464	$	8,712	$	73,176
2024		85,832		11,476		97,308
2025		81,119		14,387		95,506
2026		71,088		11,529		82,617
2027		56,978		8,252		65,230
2028 and thereafter		102,913		1,330		104,243
Total future minimum payments		462,394		55,686		518,080
Less imputed interest		(134,595)		(7,660)		(142,255)
Total	$	327,799	$	48,026	$	375,825

Rental expense for all operating leases was $21.9 million and $14.0 million for the three months ended March 31, 2023 and 2022, respectively.

At March 31, 2023 and December 31, 2022, security deposits associated with sale/leaseback transactions were $6.0 million and $5.8 million, respectively, and were included in other assets in the unaudited interim condensed consolidated balance sheets.

At March 31, 2023 and December 31, 2022, the right of use assets associated with finance leases was $62.4 million and $58.4 million, respectively. The accumulated depreciation for these right of use assets was $5.7 million and $4.7 million at March 31, 2023 and December 31, 2022, respectively.

Other information related to the operating leases are presented in the following table:

	Three months ended		Three months ended
	March 31, 2023		March 31, 2022
Cash payments (in thousands)	$	21,648	$	13,547
Weighted average remaining lease term (years)		2.66		5.46
Weighted average discount rate		11.3%		10.9%

Finance lease costs include amortization of the right of use assets (i.e., depreciation expense) and interest on lease liabilities (i.e., interest and other expense, net in the consolidated statement of operations), and were $1.1 million and $0.8 million for the three months ended March 31, 2023, respectively.

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Finance Obligation

3 Months Ended

Mar. 31, 2023

Finance Obligation

Finance Obligation

18. Finance Obligation

The Company has sold future services to be performed associated with certain sale/leaseback transactions and recorded the balance as a finance obligation.  The outstanding balance of this obligation at March 31, 2023 was $324.9 million, $59.9 million and $265.0 million of which was classified as short-term and long-term, respectively, on the accompanying unaudited interim condensed consolidated balance sheet. The outstanding balance of this obligation at December 31, 2022 was $312.1 million, $55.4 million and $256.6 million of which was classified as short-term and long-term, respectively. The amount is amortized using the effective interest method. Interest expense recorded related to finance obligations for the three months ended March 31, 2023 and 2022 was $9.2 million and $6.7 million, respectively. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

In prior periods, the Company entered into sale/leaseback transactions that were accounted for as financing transactions and reported as part of finance obligations. The outstanding balance of finance obligations related to sale/leaseback transactions at March 31, 2023 was $17.9 million, $3.5 million and $14.4 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheet.  The outstanding balance of this obligation at December 31, 2022 was $17.2 million, $3.5 million and $13.7 million of which was classified as short-term and long-term, respectively on the accompanying consolidated balance sheets. The fair value of this finance obligation approximated the carrying value as of March 31, 2023 and December 31, 2022.

Future minimum payments under finance obligations notes above as of March 31, 2023 were as follows (in thousands):

					Total
	Sale of future		Sale/leaseback		Finance
	revenue - debt		financings		Obligations
Remainder of 2023	$	70,471	$	3,591	$	74,062
2024		93,961		10,589		104,550
2025		88,705		1,686		90,391
2026		71,333		1,686		73,019
2027		54,831		1,686		56,517
2028 and thereafter		44,364		1,955		46,319
Total future minimum payments		423,665		21,193		444,858
Less imputed interest		(98,767)		(3,277)		(102,044)
Total	$	324,898	$	17,916	$	342,814

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies

Commitments and Contingencies

19.  Commitments and Contingencies

Restricted Cash

In connection with certain of the above noted sale/leaseback agreements, cash of $445.2  million and $383.7 million was required to be restricted as security as of March 31, 2023 and December 31, 2022, respectively, which

restricted cash will be released over the lease term. As of March 31, 2023 and December 31, 2022, the Company also had certain letters of credit backed by security deposits totaling $363.2 million and $379.6 million, respectively, of which $340.5 million and $354.0 million are security for the above noted sale/leaseback agreements, respectively, and $22.7 million and $25.6 million are customs related letters of credit, respectively.

As of both March 31, 2023 and December 31, 2022, the Company had $75.5 million held in escrow related to the construction of certain hydrogen plants.

The Company also had $5.0 million, $1.2 million, and $1.8 million of consideration held by our paying agent in connection with the Applied Cryo, Joule, and CIS acquisitions, respectively, reported as restricted cash as of March 31, 2023, with a corresponding accrued liability on the Company’s unaudited interim condensed consolidated balance sheet. Additionally, the Company had $6.5 million and $10.8 million in restricted cash as collateral resulting from the Frames acquisition as of March 31, 2023 and December 31, 2022, respectively.  

Litigation

Legal matters are defended and handled in the ordinary course of business. Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.  The Company has not recorded any accruals related to any legal matters.  

As previously disclosed, several actions were filed in the U.S. District Courts for the Southern District of New York and for the Central District of California asserting claims under the federal securities laws against the Company and two of its senior officers, Mr. Marsh and Mr. Middleton. On July 22, 2021, the court consolidated those actions into In re Plug Power, Inc. Securities Litigation, No. 1:21-cv-2004, pending in the U.S. District Court for the Southern District of New York (the “Securities Action”) and appointed a lead plaintiff. On October 6, 2021, lead plaintiff filed a consolidated amended complaint asserting claims on behalf of a putative class composed of all persons who purchased or otherwise acquired the Company’s securities between November 9, 2020 and March 16, 2021 (the “Amended Complaint”). The Amended Complaint asserted a claim against all defendants for alleged violations of Section 10(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b5 promulgated thereunder and a claim under Section 20(a) of the Exchange Act against Mr. Marsh and Mr. Middleton as alleged controlling persons. The Amended Complaint alleged that defendants made “materially false” statements concerning (1) adjusted EBITDA; (2) fuel delivery and research and development expenses; (3) costs related to provision for loss contracts; (4) gross losses; and (5) the effectiveness of internal controls and procedures (the “accounting-related statements”), and that these alleged misstatements caused losses and damages for members of the alleged class. On December 6, 2021, defendants filed a motion to dismiss the Amended Complaint. In an opinion and order entered on September 29, 2022, the court granted defendants’ motion to dismiss the Amended Complaint in its entirety but permitted the lead plaintiff to further amend the complaint. On November 21, 2022, the lead plaintiff filed a second amended complaint purporting to assert claims under the same provisions against the same defendants on behalf of the same alleged class of purchasers of the Company’s securities (the “Second Amended Complaint”). The Second Amended Complaint largely repeated the allegations in the Amended Complaint but, in addition, alleged that various public statements during the alleged class period were false or misleading because they allegedly failed to disclose the status of discussions and considerations relating to warrants to purchase the Company’s common stock that were granted to a customer in connection with a commercial agreement. The defendants filed a motion to dismiss the Second Amended Complaint in its entirety on January 12, 2023.

On March 31, 2021, Junwei Liu, an alleged Company stockholder, derivatively and on behalf of nominal defendant Plug, filed a complaint in the U.S. District Court for the Southern District of New York against certain Company directors and officers (the “Derivative Defendants”), captioned Liu v. Marsh et al., Case No. 1:21-cv-02753 (S.D.N.Y.) (the “Liu Derivative Complaint”). The Liu Derivative Complaint alleges that, between November 9, 2020 and March 1, 2021, the Derivative Defendants “made, or caused the Company to make, materially false and misleading statements concerning Plug Power’s business, operations, and prospects” by “issu[ing] positive financial information and optimistic guidance, and made assurances that the Company’s internal controls were effective,” when, “[i]n reality, the Company’s internal controls suffered from material deficiencies that rendered them ineffective.” The Liu Derivative Complaint asserts claims for (1) breach of fiduciary duties, (2) unjust enrichment, (3) abuse of control, (4) gross mismanagement, (5) waste

of corporate assets, and (6) contribution under Sections 10(b) and 21D of the Exchange Act (as to the named officer defendants). The Liu Derivative Complaint seeks a judgment “[d]eclaring that Plaintiff may maintain this action on behalf of Plug”; “[d]eclaring that the [Derivative] Defendants have breached and/or aided and abetted the breach of their fiduciary duties”; “awarding to Plug Power the damages sustained by it as a result of the violations” set forth in the Liu Derivative Complaint, “together with pre-judgment and post-judgment interest thereon”; “[d]irecting Plug Power and the [Derivative] Defendants to take all necessary actions to reform and improve Plug Power’s corporate governance and internal procedures to comply with applicable laws”; and “[a]warding Plaintiff the costs and disbursements of this action, including reasonable attorneys’ and experts’ fees, costs, and expenses”; and “[s]uch other and further relief as the [c]ourt may deem just and proper.”

On April 5, 2021, alleged Company stockholders Elias Levy and Camerohn X. Withers, derivatively and on behalf of nominal defendant Plug, filed a complaint in the U.S. District Court for the Southern District of New York against the Derivative Defendants named in the Liu Derivative Complaint, captioned Levy et al. v. McNamee et al., Case No. 1:21-cv-02891 (S.D.N.Y.) (the “Levy Derivative Complaint”). The Levy Derivative Complaint alleges that, from November 9, 2020 to April 5, 2021, the Derivative Defendants “breached their duties of loyalty and good faith” by failing to disclose “(1) that the Company would be unable to timely file its 2020 annual report due to delays related to the review of classification of certain costs and the recoverability of the right to use assets with certain leases; (2) that the Company was reasonably likely to report material weaknesses in its internal control over financial reporting; and (3) that, as a result of the foregoing, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis.” The Levy Derivative Complaint asserts claims for (1) breach of fiduciary duty (as to the named director defendants), (2) unjust enrichment (as to certain named director defendants), (3) waste of corporate assets (as to the named director defendants), and (4) violations of Sections 10(b) and 21D of the Exchange Act (as to the named officer defendants). The Levy Derivative Complaint seeks a judgment “declaring that Plaintiffs may maintain this action on behalf of the Company”; finding the Derivative Defendants “liable for breaching their fiduciary duties owed to the Company”; directing the Derivative Defendants “to take all necessary actions to reform and improve the Company’s corporate governance, risk management, and internal operating procedures to comply with applicable laws”; “awarding damages to the Company for the harm the Company suffered as a result of Defendants’ wrongful conduct”; “awarding damages to the Company for [the named officer Derivative Defendants’] violations of Sections 10(b) and 21D of the Exchange Act”; “awarding Plaintiffs the costs and disbursements of this action, including attorneys’, accountants’, and experts’ fees”; and “awarding such other and further relief as is just and equitable.” The Liu Derivative Complaint and the Levy Derivative Complaint have been consolidated in In re Plug Power Derivative Litigation, Lead Case No. 1:21-cv-02753-ER and, by stipulation approved by the Court, the cases have been stayed pending the resolution of the motion to dismiss in the Securities Class action.

On May 13, 2021, alleged Company stockholder Romario St. Clair, derivatively and on behalf of nominal defendant Plug, filed a complaint in the Supreme Court of the State of New York, County of New York against the derivative defendants named in the Liu derivative Complaint, captioned St. Clair v. Plug Power Inc. et al., Index No. 653167/2021 (N.Y. Sup. Ct., N.Y. Cty.)(the “St. Clair Derivative Complaint”). The St. Clair derivative Complaint alleges that, for approximately two years from March 13, 2019 onwards, the company made a number of improper statements that “failed to disclose and misrepresented the following material, adverse facts, which the [derivative] defendants knew, consciously disregarded, or were reckless in not knowing”, including: “(a) that the Company was experiencing known but undisclosed material weaknesses in its internal controls over financial reporting; (b) the Company was overstating the carrying amount of certain right of use assets and finance obligations associated with leases; (c) the Company was understating its loss accrual on certain service contracts; (d) the Company would need to take impairment charges relating to certain long-lived assets; (e) the Company was improperly classifying research and development costs versus costs of goods sold; and (f) the Company would be unable to file its annual Report for the 2020 fiscal year due to these errors.” The St. Clair Derivative Complaint asserts claims for (1) breach of fiduciary and (2) unjust enrichment. The St. Clair Derivative Complaint seeks a judgment “for the amount of damages sustained by the Company as a result of the defendants’ breaches of fiduciary duties and unjust enrichment”; “[d]irecting Plug Power to take all necessary actions to reform and improve its corporate governance and internal procedures to comply with applicable laws”;“[e]xtraordinary equitable and/or injunctive relief as permitted by law, equity, and state statutory provisions”; [a]warding to Plug Power restitution from defendants, and each of them, and ordering disgorgement of all profits, benefits, and other compensation obtained by the defendants”; [a]warding to plaintiff the costs and disbursements of the action, including reasonable attorneys’ fees, accountants’ and experts’ fees, costs, and expenses”; and “[g]ranting such other and further relief as the

[c]ourt deems just and proper.” By stipulation approved by the Court, the case has been stayed pending the resolution of the motion to dismiss in the Securities Class action.

On June 13, 2022, alleged Company stockholder Donna Max, derivatively on behalf of the Company as nominal defendant, filed a complaint in the United States District Court for the District of Delaware against the derivative defendants named in the Liu Derivative Complaint, captioned Max v. Marsh, et. al., Case No. 1:22-cv-00781(D. Del.) (the “Max Derivative Complaint”). The Max Derivative Complaint alleges that, for the years 2018, 2019 and 2020, the defendants did not “assure that a reliable system of financial controls was in place and functioning effectively”; “failed to disclose errors in the Company's accounting primarily relating to (i) the reported book value of right of use assets and related finance obligations, (ii) loss accruals for certain service contracts, (iii) the impairment of certain long-lived assets, and (iv) the classification of certain expenses previously included in research and development costs”; and that certain defendants traded Company stock at “artificially inflated stock prices.” The Max Derivative Complaint asserts claims for (1) breach of fiduciary against all defendants; (2) breach of fiduciary duty for insider trading against certain defendants; and (3) contribution under Sections 10(b) and 21D of the Exchange Act against certain defendants. The Max Derivative Complaint seeks an award “for the damages sustained by [the Company]” and related relief.  By stipulation approved by the Court, the case has been stayed pending the resolution of the motion to dismiss in the Securities Action.

On June 29, 2022, alleged Company stockholder Abbas Khambati, derivatively on behalf of the Company as nominal defendant, filed a complaint in the Court of Chancery in the State of Delaware against the derivative defendants named in the Liu Derivative Complaint and Gerard A. Conway, Jr. and Keith Schmid, captioned Khambati v. McNamee, et. al., C.A. No. 2022-05691(Del. Ch.) (the “Khambati Derivative Complaint”). The Khambati Derivative Complaint alleges that the defendants “deceive[d] the investing public, including stockholders of Plug Power, regarding the Individual Defendants’ management of Plug Power’s operations and the Company’s compliance with the SEC's accounting rules”; “facilitate[d” certain defendants’ sales of “their personally held shares while in possession of material, nonpublic information”; and “enhance[d] the Individual Defendants’ executive and directorial positions at Plug Power and the profits, power, and prestige that the Individual Defendants enjoyed as a result of holding these positions.” The Khambati Derivative Complaint asserts claims for (1) breach of fiduciary; and (2) disgorgement and unjust enrichment. The Khambati Derivative Complaint seeks an award “for the damages sustained by [the Company] as a result of the breaches” alleged or “disgorgement or restitution”; “disgorgement of insider trading profits” and “all profits, benefits and other compensation obtained by [defendants’] insider trading and further profits flowing therefrom”; an order “[d]irecting the Company to take all necessary actions to reform and improve its corporate governance and internal procedures”; and related relief.

On July 19, 2022, alleged Company stockholder Anne D. Graziano, as Trustee of the Anne D. Graziano Revocable Living Trust, derivatively on behalf of the Company as nominal defendant, filed a complaint in the Court of Chancery in the State of Delaware against the derivative defendants named in the Khambati Derivative Complaint, captioned Graziano v. Marsh, et. al., C.A. No. 2022-0629 (Del. Ch.) (the “Graziano Derivative Complaint”). The Graziano Derivative Complaint alleges that the director defendants (i) “either knowingly or recklessly issued or caused the Company to issue the materially false and misleading statements” concerning “certain critical accounting issues”; (ii) “willfully ignored, or recklessly failed to inform themselves of, the obvious problems with the Company’s internal controls, practices, and procedures, and failed to make a good faith effort to correct the problems or prevent their recurrence”; (iii) the members of the Audit Committee failed “to prevent, correct, or inform the Board of the issuance of material misstatements and omissions regarding critical accounting issues and the adequacy of the Company’s internal controls”; (iv) “received payments, benefits, stock options, and other emoluments by virtue of their membership on the Board and their control of the Company”; (v) violated the Company’s Code of Conduct because they knowingly or recklessly engaged in and participated in making and/or causing the Company to make the materially false and misleading statements; and (vi) certain defendants “sold large amounts of Company stock while it was trading at artificially inflated prices.” The Graziano Derivative Complaint asserts claims for (1) breach of fiduciary; (2) breach of fiduciary duty against certain defendants for insider trading; (3) unjust enrichment; (4) aiding and abetting breach of fiduciary duty; and (5) waste of corporate assets. The Graziano Derivative Complaint seeks an award of “the amount of damages sustained by the Company”; seeks an order “[d]irecting Plug Power to take all necessary actions to reform and improve its corporate governance and internal procedures to comply with applicable laws and to protect Plug Power and its stockholders from a repeat of the damaging events described herein”; and related relief. The parties to the Graziano Derivative Complaint and Khambati Derivative Complaint have been consolidated in In re Plug Power, Inc. Stockholder Derivative Litigation, Consolidated C.A. No.

2022-0569 and, by stipulation approved by the court, the cases have been stayed pending the resolution of the motion to dismiss in the Securities Action.

On April 12, 2023, an action was filed in the U.S. District Court for the District of Delaware asserting claims under the federal securities laws against the Company and four of its senior officers, Mr. Marsh, Mr. Middleton, Mr. Mindnich, and Mr. Hull, captioned Melton v. Plug Power Inc et al., Case No. 1:23-cv-00409 (D. Del.). The complaint asserts claims on behalf of a putative class composed of all persons who purchased or otherwise acquired the Company’s securities between August 9, 2022 and March 1, 2023.  The complaint asserted a claim against all defendants for alleged violations of Section 10(b) of the Exchange Act and Rule 10b5 promulgated thereunder and a claim under Section 20(a) of the Exchange Act against Mr. Marsh, Mr. Middleton, Mr. Mindnich, and Mr. Hull as alleged controlling persons. The complaint alleged that defendants made “materially false and/or misleading statements” about the Company’s business and operations, including that “the Company was unable to effectively manage its supply chain and product manufacturing, resulting in reduced revenues and margins, increased inventory levels, and several large deals being delayed until at least 2023, among other issues.” Under the Private Securities Litigation Reform Act of 1995, applications to serve as lead plaintiff(s) are due to be filed on or before June 12, 2023.

As previously disclosed, two lawsuits were filed against the Company and other companies in the 9^th District Court, Rapides Parish, Louisiana, arising from the previously disclosed May 2018 accident involving a forklift powered by the Company's fuel cell at a Procter & Gamble facility in Louisiana. Additional defendants included Structural Composite Industries, Deep South Equipment Company, Air Products and Chemicals Inc., Hyster-Yale Group. Westport Industries and Quality Thermistor, Inc. The first suit, Lott, et al v. Plug Power, et al, was filed by a number of individual plaintiffs alleging personal injury claims. Procter & Gamble intervened in that suit to recover workers compensation benefits paid to or for the employees/dependents. Procter & Gamble filed a separate suit for property damage, business interruption. The Company aggressively defended both lawsuits. The Lott case was settled in April 2022 on terms that were extremely favorable for the company.  An agreement to settle the separate P&G suit was recently reached, also on terms that are extremely favorable for the Company. Both settlements are funded by the Company's commercial liability insurer, and the amounts are substantially below the policy limits.

On May 2, 2023, a lawsuit entitled Jacob Thomas, and JTurbo Engineering & Technology, LLC. v. Joule Processing, LLC. and Plug Power Inc., Case No. 4:23-cv-01615, was filed in the United States District Court for the Southern District of Texas against the Company.  The complaint alleges misappropriation of trade secrets under both the federal Defend Trade Secrets Act of 2016, 18 U.S.C. § 1836, and the Texas Uniform Trade Secrets Act, three breach of contract claims, tort claims and a claim for unfair competition under Texas law. The Company finds all allegations to be lacking in substance and merit. As appropriate, the Company intends to vigorously defend itself against the plaintiffs and exercise all recourse available in a court of law.  

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to credit risk consist principally of cash, cash equivalents, restricted cash, accounts receivable and marketable securities. Cash and restricted cash are maintained in accounts with financial institutions, which, at times may exceed the Federal depository insurance coverage of $0.3 million. The Company has not experienced losses on these accounts and management believes, based upon the quality of the financial institutions, that the credit risk with regard to these deposits is not significant. The Company’s available-for-sale securities consists primarily of investments in U.S. Treasury securities and short-term high credit quality corporate debt securities.  Equity securities are comprised of fixed income and equity market index mutual funds.

Concentrations of credit risk with respect to receivables exist due to the limited number of select customers with whom the Company has commercial sales arrangements. To mitigate credit risk, the Company performs appropriate evaluation of a prospective customer’s financial condition.

At March 31, 2023, one customer comprised 10% of the total accounts receivable balance. At December 31, 2022, one customer comprised approximately 24.9% of the total accounts receivable balance.

For purposes of assigning a customer to a sale/leaseback transaction completed with a financial institution, the Company considers the end user of the assets to be the ultimate customer. For the three months ended March 31, 2023, 25.5% of total consolidated revenues were associated with two customers. For the three months ended March 31, 2022, 67.0% of total consolidated revenues were associated with five customers.

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Employee Benefit Plans

3 Months Ended

Mar. 31, 2023

Employee Benefit Plans

Employee Benefit Plans

20. Employee Benefit Plans

2011 and 2021 Stock Option and Incentive Plan

The Company has issued stock-based awards to employees and members of its Board of Directors (the “Board”) consisting of stock options and restricted stock and restricted stock unit awards. The Company accounts for all stock-based awards to employees and members of the Board as compensation costs in the consolidated financial statements based on their fair values measured as of the date of grant. These costs are recognized over the requisite service period. Stock-based compensation costs recognized, excluding the Company’s matching contributions of $3.0 million to the Plug Power Inc. 401(k) Savings & Retirement Plan and quarterly Board compensation, were $40.2 million and $40.8 million for the three months ended March 31, 2023 and March 31, 2022, respectively. The methods and assumptions used in the determination of the fair value of stock-based awards are consistent with those described in our 2022 Form 10-K.

The components and classification of stock-based compensation expense, excluding the Company’s matching contributions to the Plug Power Inc. 401(k) Savings & Retirement Plan and quarterly Board compensation, were as follows (in thousands):

	Three months ended
	March 31, 2023		March 31, 2022
Cost of sales	$	2,677	$	1,798
Research and development		2,283		1,722
Selling, general and administrative		35,221		37,248
	$	40,181	$	40,768

Option Awards

The Company issues options that are time and performance-based awards. All option awards are determined to be classified as equity awards.

Service Stock Options Awards

The following table reflects the service stock option activity for the three months ended March 31, 2023:

					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price		Terms		Value
Options outstanding at December 31, 2022	$	12,078,269	$	14.34	$	7.57	$	42,835
Granted		94,550		15.44
Exercised		(124,269)		5.43
Forfeited		(89,017)		22.97
Options outstanding at March 31, 2023	$	11,959,533	$	14.38	$	7.34	$	38,278
Options exercisable at March 31, 2023		6,879,596		9.71		6.24		37,976
Options unvested at March 31, 2023	$	5,079,937	$	20.70	$	8.83	$	302

The weighted average grant-date fair value of the service stock options granted during the three months ended March 31, 2023 and 2022 was $10.48 and $15.34, respectively. The total intrinsic fair value of service stock options exercised during the three months ended March 31, 2023 and 2022 was $1.3 million and $1.1 million, respectively. The

total fair value of the service stock options that vested during the three months ended March 31, 2023 and 2022 was approximately $7.5 million and $5.6 million, respectively.

Compensation cost associated with service stock options represented approximately $8.2 million and $5.9 million of the total share-based payment expense recorded for the three months ended March 31, 2023 and 2022, respectively. As of March 31, 2023 and 2022, there was approximately $51.4 million and $47.0 million, respectively, of unrecognized compensation cost related to service stock option awards to be recognized over the weighted average remaining period of 1.94 years.

Performance Stock Option Awards

The following table reflects the Performance Stock Option activity for the three month ended March 31, 2023.

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Shares	Price		Terms	Value
Options outstanding at December 31, 2022	15,520,000	$	26.87	5.81	$	—
Options exercisable at December 31, 2022	1,391,000		26.92	5.73		—
Options unvested at December 31, 2022	14,129,000	$	26.86	5.82	$	—
Options outstanding at March 31, 2023	15,520,000	$	26.87	5.57	$	—
Options exercisable at March 31, 2023	1,391,000		26.92	5.48		—
Options unvested at March 31, 2023	14,129,000	$	26.86	5.58	$	—

There were no performance stock options granted during the three months ended March 31, 2023 or 2022. There were no performance stock options exercised during the three months ended March 31, 2023 or 2022. There were no performance stock options that vested during the three months ended March 31, 2023 or 2022.

As of March 31, 2023, there were 2,782,000 unvested stock options for which the employee requisite service period has not been rendered but are expected to vest. The aggregate intrinsic value of these unvested stock options is $0 as of March 31, 2023. The weighted average remaining contractual term of these unvested stock options was 5.48 years as of March 31, 2023.

Compensation cost associated with performance stock options represented approximately $17.4 million and $25.1 million of the total share-based payment expense recorded for the three months ended March 31, 2023 and 2022, respectively. As of March 31, 2023, there was approximately $53.1 million of unrecognized compensation cost related to performance stock option awards to be recognized over the weighted average remaining period of 1.63 years.

Restricted Common Stock and Restricted Stock Unit Awards

The Company recorded expense associated with its restricted common stock and restricted stock unit awards of approximately $14.6 million and $9.8 million for the three months ended March 31, 2023 and 2022, respectively. Additionally, as of March 31, 2023, there was $95.5 million of unrecognized compensation cost related to restricted stock and restricted common stock unit awards to be recognized over the weighted average period of 1.98 years. As of March 31, 2022, there was $83.7 million of unrecognized compensation cost related to restricted common stock and restricted stock unit awards to be recognized over the weighted average period of 2.1 years.

A summary of restricted stock and restricted stock unit activity for the three months ended March 31, 2023 is as follows (in thousands except share amounts):

		Weighted		Aggregate
		Average Grant Date		Intrinsic
	Shares	Fair Value		Value
Unvested restricted common stock and restricted stock units at December 31, 2022	6,276,376	$	21.56	$	77,639
Granted	94,550		15.44		—
Vested	(409,431)		32.97		—
Forfeited	(73,482)		22.70		—
Unvested restricted common stock and restricted stock units at March 31, 2023	5,888,013	$	20.65	$	67,968

The weighted average grant-date fair value of the restricted common stock and restricted stock unit awards granted during the three months ended March 31, 2023 and 2022, was $15.44 and $23.86, respectively. The total fair value of restricted shares of common stock and restricted stock unit awards that vested for the three months ended March 31, 2023 and 2022 was $13.5 million and $3.9 million, respectively.

401(k) Savings & Retirement Plan

The Company issued 219,970 shares of common stock and 96,539 shares of common stock pursuant to the Plug Power Inc. 401(k) Savings & Retirement Plan during the three months ended March 31, 2023 and 2022, respectively.

The Company’s expense for this plan was approximately $3.0 million and $2.2 million for the three months ended March 31, 2023 and 2022, respectively.

Non-Employee Director Compensation

The Company granted 10,316 shares of common stock and 3,290 shares of common stock to non-employee directors as compensation for the three months ended March 31, 2023 and 2022, respectively. All common stock issued is fully vested at the time of issuance and is valued at fair value on the date of issuance. The Company’s share-based compensation expense in connection with non-employee director compensation was approximately $0.1 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively.

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Accrued Expenses

3 Months Ended

Mar. 31, 2023

Accrued Expenses

Accrued Expenses

21. Accrued Expenses

Accrued expenses at March 31, 2023 and December 31, 2022 consisted of (in thousands):

	March 31,		December 31,
	2023		2022
Accrued payroll and compensation related costs	$	19,887	$	18,231
Accrual for capital expenditures		31,346		53,089
Accrued accounts payable		93,532		53,899
Accrued sales and other taxes		9,718		15,112
Accrued interest		2,271		421
Accrued other		11,000		15,678
Total	$	167,754	$	156,430

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Segment Reporting

3 Months Ended

Mar. 31, 2023

Segment Reporting

Segment Reporting

22. Segment Reporting

Our organization is managed from a sales perspective on the basis of “go-to-market” sales channels, emphasizing shared learning across end user applications and common supplier/vendor relationships. These sales channels are structured to serve a range of customers for our products and services. As a result of this structure, we concluded that we

have one operating and reportable segment — the design, development and sale of fuel cells and hydrogen producing equipment. Our chief executive officer was identified as the chief operating decision maker (CODM). All significant operating decisions made by management are largely based upon the analysis of Plug Power Inc. on a total company basis.

	Revenues				Long-Lived Assets as of
	Three Months Ended				Three Months Ended
	March 31, 2023		March 31, 2022		March 31, 2023		December 31, 2022
North America	$	161,807	$	113,678	$	1,382,681	$	1,209,900
Europe		40,153		—		18,459		13,215
Asia		3,255		—		—		—
Other		5,071		27,126		—		—
Total	$	210,286	$	140,804	$	1,401,140	$	1,223,115

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events

Subsequent Events

23. Subsequent Events

We have evaluated events as of May 9, 2023 and have not identified any subsequent events.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Summary of Significant Accounting Policies

Principles of Consolidation

Principles of Consolidation

The unaudited interim condensed consolidated financial statements include the financial statements of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. In addition, we include our share of the results of our joint venture with Renault SAS (“Renault”) named HyVia SAS, a French société par actions simplifiée (“HyVia”), AccionaPlug S.L. (AccionaPlug), and SK Plug Hyverse Co., Ltd. (“SK Plug Hyverse”), using the equity method based on our economic ownership interest and our ability to exercise significant influence over the operating and financial decisions of HyVia, AccionaPlug and SK Plug Hyverse. Additionally, we consolidate the results of our joint venture with Niloco Hydrogen Holdings LLC, a wholly-owned subsidiary of Olin Corporation (“Olin”), named “Hidrogenii”.

Interim Financial Statements

Interim Financial Statements

The accompanying unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, all adjustments, which consist solely of normal recurring adjustments, necessary to present fairly, in accordance with U.S. generally accepted accounting principles (“GAAP”), the financial position, results of operations and cash flows for all periods presented, have been made. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the full year.

Certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. These unaudited interim condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (the “2022 Form 10-K”).

The information presented in the accompanying unaudited interim condensed consolidated balance sheets as of December 31, 2022 has been derived from the Company’s December 31, 2022 audited consolidated financial statements.

The unaudited interim condensed consolidated financial statements contained herein should be read in conjunction with our 2022 Form 10-K.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

Other than the adoption of the accounting guidance mentioned in our 2022 Form 10-K, there have been no other significant changes in our reported financial position or results of operations and cash flows resulting from the adoption of new accounting pronouncements.

Recent Accounting Guidance Not Yet Effective

All issued but not yet effective accounting and reporting standards as of March 31, 2023 are either not applicable to the Company or are not expected to have a material impact on the Company.

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Acquisitions (Tables)

3 Months Ended

Mar. 31, 2023

Alloy Custom Products, LLC and WesMor Cryogenics, LLC

Schedule of fair value of consideration paid

The fair value of consideration paid by the Company in connection with the CIS acquisition was as follows (in thousands):

Cash	$	30,700
Due to Cryogenic Industrial Solutions, LLC		500
Plug Power Inc. Common Stock		6,107
Total consideration	$	37,307

Summary of allocation of the purchase price to the estimated fair value of the net assets acquired

The following table summarizes the preliminary allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Cash	$	267
Accounts receivable		5,038
Inventory		11,120
Prepaid expenses and other assets		464
Property, plant and equipment		3,887
Right of use asset		1,538
Identifiable intangible assets		13,430
Lease liability		(1,562)
Accounts payable, accrued expenses and other liabilities		(3,826)
Deferred revenue		(6,193)
Total net assets acquired, excluding goodwill	$	24,163

Business combination segment allocation

Consideration paid	$	37,307
Less: net assets acquired		(24,163)
Total goodwill recognized	$	13,144

Joule Processing LLC

Schedule of fair value of consideration paid

The fair value of consideration paid by the Company in connection with the Joule acquisition was as follows (in thousands):

Cash	$	28,140
Contingent consideration		41,732
Total consideration	$	69,872

Summary of allocation of the purchase price to the estimated fair value of the net assets acquired

The following table summarizes the final allocation of the purchase price to the estimated fair value of the net assets acquired, excluding goodwill (in thousands):

Current assets	$	2,672
Property, plant and equipment		493
Right of use asset		182
Identifiable intangible assets		60,522
Lease liability		(374)
Current liabilities		(2,612)
Contract liability		(3,818)
Total net assets acquired, excluding goodwill	$	57,065

Business combination segment allocation

Goodwill associated with the Joule acquisition was calculated as follows (in thousands):

Consideration paid	$	28,140
Contingent consideration		41,732
Less: net assets acquired		(57,065)
Total goodwill recognized	$	12,807

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Extended Maintenance Contracts (Tables)

3 Months Ended

Mar. 31, 2023

Extended Maintenance Contracts

Schedule of accrual for loss contracts

The following table shows the roll forward of balances in the accrual for loss contracts, including changes due to the provision for loss accrual, loss accrual acquired from acquisition, releases to service cost of sales, releases due to the provision for warrants, and foreign currency translation adjustment (in thousands):

	Three months		Year
	ended		ended
	March 31, 2023		December 31, 2022
Beginning balance	$	81,066	$	89,773
Provision for loss accrual		6,981		23,295
Releases to service cost of sales		(6,668)		(35,446)
Increase/(decrease) to loss accrual related to customer warrants		(92)		3,506
Foreign currency translation adjustment		25		(62)
Ending balance	$	81,312	$	81,066

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share

Schedule of potential dilutive common shares

	At March 31,
	2023	2022
Stock options outstanding (1)	27,479,533	24,185,000
Restricted stock and restricted stock units outstanding (2)	5,888,013	5,439,207
Common stock warrants (3)	85,879,175	80,017,181
Convertible Senior Notes (4)	39,170,766	39,170,766
Number of dilutive potential shares of common stock	158,417,487	148,812,154

(1) During the three months ended March 31, 2023 and 2022, the Company granted options for 94,550 and 451,500 shares of common stock, respectively.

(2) During the three months ended March 31, 2023 and 2022, the Company granted 94,550 and 802,500 shares of restricted stock and restricted stock units, respectively.

(3) In August 2022, the Company issued a warrant to acquire up to 16,000,000 shares of the Company’s common stock as part of a transaction agreement with Amazon.com, Inc. (“Amazon”), subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had not been exercised as of March 31, 2023.  

In April 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Amazon, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.”  The warrant had been exercised with respect to 27,600,000 and 24,704,450 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.  

In July 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Walmart, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of March 31, 2023 and 2022, respectively.

(4) In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due 2023 (the “5.5% Convertible Senior Notes”).  In May 2020, the Company repurchased $66.3 million of the 5.5% Convertible Senior Notes and in the fourth quarter of 2020, $33.5 million of the 5.5% Convertible Senior Notes were converted into approximately 14.6 million shares of common stock. The remaining $0.2 million aggregate principal amount of the 5.5% Convertible Senior Notes were converted into 69,808 shares of common stock in January 2021. In May 2020, the Company issued $212.5 million in aggregate principal amount of the 3.75% Convertible Senior Notes due 2025 (the “3.75% Convertible Senior Notes).  There were no conversions for the three months ended March 31, 2023 and 2022.

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Inventory (Tables)

3 Months Ended

Mar. 31, 2023

Inventory

Schedule of Inventory

Inventory as of March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Raw materials and supplies - production locations	$	550,315	$	450,432
Raw materials and supplies - customer locations		21,765		18,860
Work-in-process		139,013		112,231
Finished goods		64,556		64,113
Inventory	$	775,649	$	645,636

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Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment

Schedule of Property plant and equipment

Property, plant and equipment at March 31, 2023 and December 31, 2022 consisted of the following (in thousands):

	March 31, 2023		December 31, 2022
Land	$	1,772	$	1,772
Construction in progress		697,456		575,141
Building and leasehold improvements		40,548		21,363
Software, machinery, and equipment		188,530		169,633
Property, plant, and equipment		928,306		767,909
Less: accumulated depreciation		(53,647)		(48,116)
Property, plant, and equipment, net	$	874,659	$	719,793

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Intangible Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2023

Intangible Assets and Goodwill

Schedule of Intangible assets

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of March 31, 2023 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,389		(14,746)	$	89,643
Dry stack electrolyzer technology	10 years		29,000		(3,142)		25,858
Customer relationships, Non-compete agreements, Backlog & Trademark	12 years		103,325		(15,086)		88,239
		$	236,714	$	(32,974)	$	203,740

The gross carrying amount and accumulated amortization of the Company’s acquired identifiable intangible assets as of December 31, 2022 were as follows (in thousands):

	Weighted Average	Gross Carrying		Accumulated
	Amortization Period	Amount		Amortization		Total
Acquired technology	14 years	$	104,221	$	(12,754)	$	91,467
Dry stack electrolyzer technology	10 years		29,000		(2,417)		26,583
Customer relationships, Non-compete agreements, Backlog & Trademark	13 years		102,521		(12,846)		89,675
		$	235,742	$	(28,017)	$	207,725

Schedule of future amortization of intangible assets

The estimated amortization expense for subsequent years is as follows (in thousands):

Remainder of 2023	$	14,347
2024		19,069
2025		18,294
2026		16,702
2027		16,694
2028 and thereafter		118,634
Total	$	203,740

Schedule of changes in the carrying amount of goodwill

The change in the carrying amount of goodwill for the three months ended March 31, 2023 was as follows (in thousands):

Beginning balance at December 31, 2022	$	248,607
Foreign currency translation adjustment		1,264
Ending balance at March 31, 2023	$	249,871

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Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2023

Long-Term Debt

Schedule of long term debt

December 31, 2023	$	5,660
December 31, 2024		3,357
December 31, 2025		1,200
December 31, 2026		900
	$	11,117

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Convertible Senior Notes (Tables) - 3.75% Convertible Senior Notes

3 Months Ended

Mar. 31, 2023

Debt Instrument [Line Items]

Schedule of Convertible Senior Notes

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

	March 31,		December 31,
	2023		2022
Principal amounts:
Principal	$	197,278	$	197,278
Unamortized debt issuance costs (1)		(3,028)		(3,359)
Net carrying amount	$	194,250	$	193,919

1) Included in the unaudited interim condensed consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

Schedule of debt

The following table summarizes the total interest expense and effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for the effective interest rate):

	March 31,			March 31,
	2023			2022
Interest expense	$	1,849	$	1,849
Amortization of debt issuance costs		331		316
Total		2,180		2,165
Effective interest rate		4.5%		4.5%

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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2023

Stockholders' Equity

Schedule of accumulated other comprehensive loss

Accumulated Other Comprehensive Income comprises the following (in thousands):

	Gains and Losses on		Unrealized Gains and Losses on		Foreign
	Available-For-Sale		Available-For-Sale		Currency
	Securities		Securities		Items		Total
December 31, 2022	$	(749)	$	(19,472)	$	(5,783)	$	(26,004)
Net current-period other comprehensive loss		—		5,311		1,659		6,970
March 31, 2023	$	(749)	$	(14,161)	$	(4,124)	$	(19,034)
December 31, 2021	$	(150)	$	(67)	$	(1,315)	$	(1,532)
Net current-period other comprehensive loss		—		(15,080)		(1,850)		(16,930)
March 31, 2022	$	(150)	$	(15,147)	$	(3,165)	$	(18,462)

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Warrant Transaction Agreements (Tables)

3 Months Ended

Mar. 31, 2023

Amazon

Schedule of Fair Value Assumption of Warrants

	Tranches 1-3	Tranche 4
	August 24, 2022	March 31, 2023
Risk-free interest rate	3.15%	3.50%
Volatility	75.00%	75.00%
Expected average term	7 years	4 years
Exercise price	$22.98	$10.55
Stock price	$20.36	$11.72

Walmart

Schedule of Fair Value Assumption of Warrants

	March 31, 2023
Risk-free interest rate	3.55%
Volatility	75.00%
Expected average term	3.5 years
Exercise price	$10.55
Stock price	$11.72

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Revenue (Tables)

3 Months Ended

Mar. 31, 2023

Revenue

Schedule of disaggregation of revenue

The following table provides information about disaggregation of revenue (in thousands):

Major products/services lines
	Three months ended
	March 31,
	2023		2022
Sales of fuel cell systems	$	28,852	$	37,528
Sales of hydrogen infrastructure		48,868		27,089
Sales of electrolyzers		40,032		4,059
Sales of engineered equipment		7,753		21,968
Services performed on fuel cell systems and related infrastructure		9,097		8,240
Power Purchase Agreements		7,937		10,037
Fuel delivered to customers and related equipment		10,142		13,429
Sales of cryogenic equipment and other		56,589		18,203
Other		1,016		251
Net revenue	$	210,286	$	140,804

Schedule of receivables, contract assets and contract liabilities from contracts with customers

The following table provides information about receivables, contract assets and contract liabilities from contracts with customers (in thousands):

	March 31,		December 31,
	2023		2022
Accounts receivable	$	127,720	$	129,450
Contract assets		124,430		104,287
Deferred revenue and contract liabilities		220,150		229,898

Schedule of changes in contract assets and the contract liabilities

Significant changes in the contract assets and the contract liabilities balances during the period are as follows (in thousands):

Contract assets
	March 31,		December 31,
	2023		2022
Transferred to receivables from contract assets recognized at the beginning of the period	$	(19,709)	$	(33,394)
Contract assets related to warrants		5,577		26,455
Revenue recognized and not billed as of the end of the period		34,275		72,469
Net change in contract assets	$	20,143	$	65,530

Deferred revenue and contract liabilities
	March 31,		December 31,
	2023		2022
Increases due to cash received, net of amounts recognized as revenue during the period	$	80,740	$	200,347
Contract liabilities assumed as part of acquisitions		—		10,011
Revenue recognized that was included in the contract liability balance as of the beginning of the period		(90,488)		(163,550)
Net change in deferred revenue and contract liabilities	$	(9,748)	$	46,808

Schedule of Estimated future revenue

The following table includes estimated revenue included in the backlog expected to be recognized in the future (sales of fuel cell systems, equipment, and hydrogen installations are expected to be recognized as revenue within one year; sales of services, Power Purchase Agreements (“PPAs”), and fuel are expected to be recognized as revenue over five to ten years) related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period, including provision for common stock warrants (in thousands):

	March 31,
	2023
Sales of fuel cell systems	$	53,578
Sales of hydrogen installations and other infrastructure		21,807
Sales of electrolyzers		281,720
Sales of engineered equipment		16,628
Services performed on fuel cell systems and related infrastructure		121,418
Power Purchase Agreements		385,096
Fuel delivered to customers and related equipment		92,470
Sales of cryogenic equipment		121,657
Total estimated future revenue	$	1,094,374

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Measurements

Schedule of assets and liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands):

	As of March 31, 2023
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	208,358	$	208,358	$	208,358	$	—	$	—
Corporate bonds		163,863		163,863		—		163,863		—
U.S. Treasuries		864,508		864,508		864,508		—		—
Equity securities		139,911		139,911		139,911		—		—
Liabilities
Contingent consideration		123,473		123,473		—		—		123,473

	As of December 31, 2022
	Carrying		Fair		Fair Value Measurements
	Amount		Value		Level 1		Level 2		Level 3
Assets
Cash equivalents	$	212,577	$	212,577	$	212,577	$	—	$	—
Corporate bonds		193,633		193,633		—		193,633		—
U.S. Treasuries		1,139,310		1,139,310		1,139,310		—		—
Equity securities		134,836		134,836		134,836		—		—
Liabilities
Contingent consideration		116,165		116,165		—		—		116,165

Schedule of assets and liabilities measured at fair value on a recurring basis that have unobservable inputs

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	87,049	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,880	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		24,544	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	123,473

In the unaudited interim condensed consolidated balance sheets, contingent consideration is recorded in the contingent consideration, loss accrual for service contracts, and other current liabilities financial statement line item, and is comprised of the following unobservable inputs for the twelve months ending December 31, 2022:

Financial Instrument	Fair Value		Valuation Technique	Unobservable Input	Range (weighted average)
Contingent Consideration	$	85,269	Scenario based method	Credit spread	15.73% - 15.74%
				Discount rate	19.85% - 20.68%
		11,310	Monte carlo simulation	Credit spread	15.74%
				Discount rate	20.00%-20.30%
				Revenue volatility	45.29%
		19,586	Monte carlo simulation	Credit spread	15.73%
				Revenue volatility	35.7% - 23.1% (35.0%)
				Gross profit volatility	106.7% - 23.2% (60.0%)
	$	116,165

Schedule of activity in the level 3 liabilities

The change in the carrying amount of Level 3 liabilities for the three month period ended March 31, 2023 was as follows (in thousands):

	Three months ended
	March 31, 2023
Beginning balance at December 31, 2022	$	116,165
Payments		(2,000)
Fair value adjustments		8,769
Foreign currency translation adjustment		539
Ending balance at March 31, 2023	$	123,473

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Investments (Tables)

3 Months Ended

Mar. 31, 2023

Investments

Schedule of gross unrealized gains and losses, and the amortized cost, allowance for credit losses, and fair value of those investments classified as available-for-sale

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	169,804	$	15	$	(5,956)	$	163,863		—
U.S. Treasuries		875,927		106		(11,525)		864,508		—
Total	$	1,045,731	$	121	$	(17,481)	$	1,028,371	$	—

The amortized cost, gross unrealized gains and losses, fair value of those investments classified as available-for-sale, and allowance for credit losses at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
	Amortized		Gross		Gross		Fair		Allowance for
	Cost		Unrealized Gains		Unrealized Losses		Value		Credit Losses
Corporate bonds	$	200,735	$	7	$	(7,109)	$	193,633		—
U.S. Treasuries		1,154,879		111		(15,680)		1,139,310		—
Total	$	1,355,614	$	118	$	(22,789)	$	1,332,943	$	—

Schedule of fair value and gross unrealized losses on securities classified as available-for-sale

The following table summarizes the fair value and gross unrealized losses on securities classified as available-for-sale, and length of time that the individual securities have been in a continuous loss position as of March 31, 2023 (in thousands):

	March 31, 2023
	Less than 12 months				12 months or greater				Total
	Fair Value of				Fair Value of				Fair Value of
	Investments with		Gross Unrealized		Investments with		Gross Unrealized		Investments with		Gross Unrealized
	Unrealized Losses		Losses		Unrealized Losses		Losses		Unrealized Losses		Losses
Corporate bonds	$	8,794	$	(226)	$	141,875	$	(5,730)	$	150,669	$	(5,956)
U.S. Treasuries		24,884		(94)		307,587		(11,431)		332,471		(11,525)
Total available-for-sale securities	$	33,678	$	(320)	$	449,462	$	(17,161)	$	483,140	$	(17,481)

Schedule of investments classified as equity securities

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at March 31, 2023 are summarized as follows (in thousands):

	March 31, 2023
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$		$	(2,245)	$	68,012
Exchange traded mutual funds		76,000				(4,101)		71,899
Total	$	146,257	$	—	$	(6,346)	$	139,911

The cost, gross unrealized gains and losses, and fair value of those investments classified as equity securities at December 31, 2022 are summarized as follows (in thousands):

	December 31, 2022
			Gross		Gross		Fair
	Cost		Unrealized Gains		Unrealized Losses		Value
Fixed income mutual funds	$	70,257	$	—	$	(2,620)	$	67,637
Exchange traded mutual funds		75,999		—		(8,800)		67,199
Total	$	146,256	$	—	$	(11,420)	$	134,836

Schedule of the amortized cost and fair value of investments classified as available-for-sale, by contractual maturity

A summary of the amortized cost and fair value of investments classified as available-for-sale, by contractual maturity, as of March 31, 2023 and December 31, 2022 was as follows (in thousands):

	March 31, 2023				December 31, 2022
	Amortized		Fair		Amortized		Fair
Maturity:	Cost		Value		Cost		Value
Less than 12 months	$	817,369	$	810,898	$	1,045,120	$	1,039,333
12 months or greater		228,362		217,473		310,494		293,610
Total	$	1,045,731	$	1,028,371	$	1,355,614	$	1,332,943

Summary of investments under the equity method

		As of March 31, 2023			As of December 31, 2022
	Formation	Common Stock	Carrying		Common Stock	Carrying
Investee	Date	Ownership %	Value		Ownership %	Value
HyVia	Q2 2021	50%	$	29,722	50%	$	11,281
AccionaPlug S.L.	Q4 2021	50%		1,941	50%		2,225
SK Plug Hyverse	Q1 2022	49%		26,719	49%		8,937
			$	58,382		$	22,443

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Operating and Finance Lease Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Operating and Finance Lease Liabilities

Schedule of future minimum lease payments under operating leases

Future minimum lease payments under operating and finance leases (with initial or remaining lease terms in excess of one year) as of March 31, 2023 were as follows (in thousands):

			Finance		Total
	Operating Lease		Lease		Lease
	Liability		Liability		Liabilities
Remainder of 2023	$	64,464	$	8,712	$	73,176
2024		85,832		11,476		97,308
2025		81,119		14,387		95,506
2026		71,088		11,529		82,617
2027		56,978		8,252		65,230
2028 and thereafter		102,913		1,330		104,243
Total future minimum payments		462,394		55,686		518,080
Less imputed interest		(134,595)		(7,660)		(142,255)
Total	$	327,799	$	48,026	$	375,825

Schedule of operating leases other information

	Three months ended		Three months ended
	March 31, 2023		March 31, 2022
Cash payments (in thousands)	$	21,648	$	13,547
Weighted average remaining lease term (years)		2.66		5.46
Weighted average discount rate		11.3%		10.9%

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Finance Obligation (Tables)

3 Months Ended

Mar. 31, 2023

Finance Obligation

Schedule of future minimum payments under finance obligations

Future minimum payments under finance obligations notes above as of March 31, 2023 were as follows (in thousands):

					Total
	Sale of future		Sale/leaseback		Finance
	revenue - debt		financings		Obligations
Remainder of 2023	$	70,471	$	3,591	$	74,062
2024		93,961		10,589		104,550
2025		88,705		1,686		90,391
2026		71,333		1,686		73,019
2027		54,831		1,686		56,517
2028 and thereafter		44,364		1,955		46,319
Total future minimum payments		423,665		21,193		444,858
Less imputed interest		(98,767)		(3,277)		(102,044)
Total	$	324,898	$	17,916	$	342,814

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Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2023

Schedule of components and classification of stock-based compensation expense

The components and classification of stock-based compensation expense, excluding the Company’s matching contributions to the Plug Power Inc. 401(k) Savings & Retirement Plan and quarterly Board compensation, were as follows (in thousands):

	Three months ended
	March 31, 2023		March 31, 2022
Cost of sales	$	2,677	$	1,798
Research and development		2,283		1,722
Selling, general and administrative		35,221		37,248
	$	40,181	$	40,768

Nonvested Restricted Stock Shares Activity

A summary of restricted stock and restricted stock unit activity for the three months ended March 31, 2023 is as follows (in thousands except share amounts):

		Weighted		Aggregate
		Average Grant Date		Intrinsic
	Shares	Fair Value		Value
Unvested restricted common stock and restricted stock units at December 31, 2022	6,276,376	$	21.56	$	77,639
Granted	94,550		15.44		—
Vested	(409,431)		32.97		—
Forfeited	(73,482)		22.70		—
Unvested restricted common stock and restricted stock units at March 31, 2023	5,888,013	$	20.65	$	67,968

Service Stock Options Awards

Schedule of Share-based Compensation, Stock Options, Activity

					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
			Exercise		Contractual		Intrinsic
	Shares		Price		Terms		Value
Options outstanding at December 31, 2022	$	12,078,269	$	14.34	$	7.57	$	42,835
Granted		94,550		15.44
Exercised		(124,269)		5.43
Forfeited		(89,017)		22.97
Options outstanding at March 31, 2023	$	11,959,533	$	14.38	$	7.34	$	38,278
Options exercisable at March 31, 2023		6,879,596		9.71		6.24		37,976
Options unvested at March 31, 2023	$	5,079,937	$	20.70	$	8.83	$	302

Performance Stock Option Awards

Schedule of Share-based Compensation, Stock Options, Activity

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Shares	Price		Terms	Value
Options outstanding at December 31, 2022	15,520,000	$	26.87	5.81	$	—
Options exercisable at December 31, 2022	1,391,000		26.92	5.73		—
Options unvested at December 31, 2022	14,129,000	$	26.86	5.82	$	—
Options outstanding at March 31, 2023	15,520,000	$	26.87	5.57	$	—
Options exercisable at March 31, 2023	1,391,000		26.92	5.48		—
Options unvested at March 31, 2023	14,129,000	$	26.86	5.58	$	—

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Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2023

Accrued Expenses

Schedule of Accrued Expenses

Accrued expenses at March 31, 2023 and December 31, 2022 consisted of (in thousands):

	March 31,		December 31,
	2023		2022
Accrued payroll and compensation related costs	$	19,887	$	18,231
Accrual for capital expenditures		31,346		53,089
Accrued accounts payable		93,532		53,899
Accrued sales and other taxes		9,718		15,112
Accrued interest		2,271		421
Accrued other		11,000		15,678
Total	$	167,754	$	156,430

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting

Schedule of revenue from external customers and long-lived assets, by geographical areas

	Revenues				Long-Lived Assets as of
	Three Months Ended				Three Months Ended
	March 31, 2023		March 31, 2022		March 31, 2023		December 31, 2022
North America	$	161,807	$	113,678	$	1,382,681	$	1,209,900
Europe		40,153		—		18,459		13,215
Asia		3,255		—		—		—
Other		5,071		27,126		—		—
Total	$	210,286	$	140,804	$	1,401,140	$	1,223,115

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Acquisitions - Fair value of consideration (Details) - USD ($) $ in Thousands	Dec. 05, 2022	Jan. 14, 2022
Alloy Custom Products, LLC and WesMor Cryogenics, LLC
Cash	$ 30,700
Due to Cryogenic Industrial Solutions, LLC	500
Plug Power Inc. Common Stock	6,107
Total consideration	$ 37,307
Joule Processing LLC
Cash		$ 28,140
Contingent consideration		41,732
Total consideration		$ 69,872

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Acquisitions - Allocation of Purchase Price (Details) - USD ($) $ in Thousands	Dec. 05, 2022	Jan. 14, 2022
Alloy Custom Products, LLC and WesMor Cryogenics, LLC
Preliminary allocation of the purchase price to the estimated fair value of the net assets acquired
Cash	$ 267
Accounts receivable	5,038
Inventory	11,120
Prepaid expenses and other assets	464
Property, plant and equipment	3,887
Right of use asset	1,538
Identifiable intangible assets	13,430
Lease liability	(1,562)
Accounts payable, accrued expenses and other liabilities	(3,826)
Deferred revenue	(6,193)
Total net assets acquired, excluding goodwill	$ 24,163
Joule Processing LLC
Preliminary allocation of the purchase price to the estimated fair value of the net assets acquired
Current assets		$ 2,672
Property, plant and equipment		493
Right of use asset		182
Identifiable intangible assets		60,522
Lease liability		(374)
Current liabilities		(2,612)
Contract liability		(3,818)
Total net assets acquired, excluding goodwill		$ 57,065

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Acquisitions - Goodwill (Details) - USD ($) $ in Thousands	Dec. 05, 2022	Jan. 14, 2022	Mar. 31, 2023	Dec. 31, 2022
Total goodwill recognized			$ 249,871	$ 248,607
Alloy Custom Products, LLC and WesMor Cryogenics, LLC
Consideration paid	$ 37,307
Consideration paid	30,700
Less: net assets acquired	(24,163)
Total goodwill recognized	$ 13,144
Joule Processing LLC
Consideration paid		$ 69,872
Consideration paid		28,140
Contingent consideration		41,732
Less: net assets acquired		(57,065)
Total goodwill recognized		$ (12,807)

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Acquisitions - Narratives (Details) $ in Thousands			3 Months Ended
	Dec. 05, 2022 USD ($) subsidiary	Jan. 14, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Change in fair value of contingent consideration			$ 8,769	$ 2,461
Alloy Custom Products, LLC and WesMor Cryogenics, LLC
Business combination	$ 13,430
Alloy Custom Products, LLC and WesMor Cryogenics, LLC | Customer Relationships
Business combination	$ 7,100
Estimated useful lives of acquired finite-lived intangible assets	15 years
Alloy Custom Products, LLC and WesMor Cryogenics, LLC | Trade Names
Business combination	$ 6,200
Estimated useful lives of acquired finite-lived intangible assets	15 years
Alloy Custom Products, LLC and WesMor Cryogenics, LLC | Noncompete Agreements
Business combination	$ 200
Estimated useful lives of acquired finite-lived intangible assets	5 years
Alloy Custom Products, LLC and WesMor Cryogenics, LLC | Cyrogenic Industrial Solutions, LLC, Alloy Custom Products, LLC and WesMor Cryogenics, LLC [Member]
Number of subsidiaries | subsidiary	2
Revenue			11,100
Joule Processing LLC
Earn-out payments		$ 130,000	41,700
Achievement of revenue targets		90,000
Achievement of cost targets		40,000
Business combination		60,522
Fair value of contingent consideration			59,900			$ 53,200
Change in fair value of contingent consideration			6,700
Revenue			$ 20,700	$ 1,400
Joule Processing LLC | Developed Technology Rights
Business combination		$ 59,200
Estimated useful lives of acquired finite-lived intangible assets		15 years
Joule Processing LLC | Trade Names
Business combination		$ 800
Estimated useful lives of acquired finite-lived intangible assets		4 years
Joule Processing LLC | Noncompete Agreements
Business combination		$ 500
Estimated useful lives of acquired finite-lived intangible assets		6 years
Applied Cryo Technologies
Earn-out payments					$ 19,000

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Extended Maintenance Contracts (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Accrual for loss contracts
Beginning balance	$ 81,066	$ 89,773
Provision for loss accrual	6,981	23,295
Releases to service cost of sales	(6,668)	(35,446)
Increase/(decrease) to loss accrual related to customer warrants	(92)	3,506
Foreign currency translation adjustment	25	(62)
Ending balance	$ 81,312	$ 81,066

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Earnings Per Share - Dilutive Potential Common Shares (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			12 Months Ended
	Jan. 31, 2021	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2020	Dec. 31, 2022	Aug. 24, 2022	May 31, 2020	May 29, 2020	May 18, 2020	Mar. 31, 2018	Jul. 31, 2017	Jul. 20, 2017	Apr. 30, 2017	Apr. 04, 2017
Earnings Per Share
Number of dilutive potential common stock		158,417,487	148,812,154
3.75% Convertible Senior Notes
Earnings Per Share
Principal amount		$ 197,278			$ 197,278		$ 212,500	$ 12,500	$ 200,000
Conversion of notes through common stock issuance		0
Interest rate (as a percent)		3.75%					3.75%	3.75%	3.75%
5.5% Convertible Senior Notes
Earnings Per Share
Principal amount	$ 200			$ 33,500						$ 100,000
Conversion of notes through common stock issuance	69,808			14,600,000
Repurchase amount							$ 66,300
Interest rate (as a percent)	5.50%			5.50%			5.50%			5.50%
2022 Amazon transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)						16,000,000
Warrants issued with the Amazon, Inc transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)													55,286,696	55,286,696
Number of warrants exercised (in shares)		27,600,000	24,704,450
Warrants issued with the Walmart Stores, Inc transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)											55,286,696	55,286,696
Number of warrants exercised (in shares)		13,094,217	13,094,217		13,094,217
Stock options outstanding
Earnings Per Share
Number of dilutive potential common stock		27,479,533	24,185,000
Options granted		94,550	451,500
Restricted stock and restricted stock units outstanding
Earnings Per Share
Number of dilutive potential common stock		5,888,013	5,439,207
Options granted		94,550	802,500
Common stock warrants
Earnings Per Share
Number of dilutive potential common stock		85,879,175	80,017,181
Convertible senior notes
Earnings Per Share
Number of dilutive potential common stock		39,170,766	39,170,766

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Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Inventory
Raw materials and supplies - production locations	$ 550,315	$ 450,432
Raw materials and supplies - customer locations	21,765	18,860
Work-in-process	139,013	112,231
Finished goods	64,556	64,113
Inventory	775,649	645,636
Reserve for excess and obsolete inventory	$ 5,400	$ 5,400

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Property, Plant and Equipment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) Plant	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Property, plant and equipment
Property, plant, and equipment	$ 928,306		$ 767,909
Less: accumulated depreciation	(53,647)		(48,116)
Property, plant, and equipment, net	874,659		719,793
Capitalized interest	2,000	$ 4,300
Depreciation expense	$ 5,500	$ 2,600
Number of hydrogen production plant | Plant	5
Land
Property, plant and equipment
Property, plant, and equipment	$ 1,772		1,772
Construction in progress
Property, plant and equipment
Property, plant, and equipment	697,456		575,141
Buildings and Leasehold Improvements
Property, plant and equipment
Property, plant, and equipment	40,548		21,363
Software, machinery, and equipment
Property, plant and equipment
Property, plant, and equipment	$ 188,530		$ 169,633

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Intangible Assets and Goodwill - Gross Carrying Amount (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Gross carrying amount and accumulated amortization of acquired identifiable intangible assets
Gross Carrying Amount	$ 236,714	$ 235,742
Accumulated Amortization	(32,974)	(28,017)
Total	$ 203,740	$ 207,725
Acquired technology
Gross carrying amount and accumulated amortization of acquired identifiable intangible assets
Weighted Average Amortization Period	14 years	14 years
Gross Carrying Amount	$ 104,389	$ 104,221
Accumulated Amortization	(14,746)	(12,754)
Total	$ 89,643	$ 91,467
Dry stack electrolyzer technology
Gross carrying amount and accumulated amortization of acquired identifiable intangible assets
Weighted Average Amortization Period	10 years	10 years
Gross Carrying Amount	$ 29,000	$ 29,000
Accumulated Amortization	(3,142)	(2,417)
Total	$ 25,858	$ 26,583
Customer relationships, Non-compete agreements, Backlog & Trademark
Gross carrying amount and accumulated amortization of acquired identifiable intangible assets
Weighted Average Amortization Period	12 years	13 years
Gross Carrying Amount	$ 103,325	$ 102,521
Accumulated Amortization	(15,086)	(12,846)
Total	$ 88,239	$ 89,675

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Intangible Assets and Goodwill - Estimated Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Intangible Assets and Goodwill
Amortization of Intangible Assets	$ 4,959	$ 5,190
Estimated amortization expense
Remainder of 2023	14,347
2024	19,069
2025	18,294
2026	16,702
2027	16,694
2028 and thereafter	118,634
Total	$ 203,740

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Intangible Assets and Goodwill - Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 248,607
Foreign currency translation adjustment	1,264
Goodwill, Ending Balance	$ 249,871

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Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2019
Long-Term Debt
Outstanding balance	$ 9,000
Carrying amount of debt	11,117
Unamortized debt discount	$ 2,100
Minimum
Long-Term Debt
Effective interest rate (as a percent)	2.20%
Maximum
Long-Term Debt
Effective interest rate (as a percent)	8.30%
Secured term loan facility | Loan and security agreement
Long-Term Debt
Secured term loan amount		$ 100,000

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Long-Term Debt - Principal Balance Due (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Principal payments of long term debt
December 31, 2023	$ 5,660
December 31, 2024	3,357
December 31, 2025	1,200
December 31, 2026	900
Total	$ 11,117

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Convertible Senior Notes - Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	May 31, 2020	May 29, 2020	May 18, 2020
Convertible Senior Notes
Unamortized debt discount	$ (2,100)
Net carrying amount	194,250	$ 193,919
3.75% Convertible Senior Notes
Convertible Senior Notes
Principal amount	197,278	197,278	$ 212,500	$ 12,500	$ 200,000
Unamortized debt issuance costs	(3,028)	(3,359)
Net carrying amount	$ 194,250	$ 193,919
Interest rate (as a percent)	3.75%		3.75%	3.75%	3.75%
Conversion of convertible senior notes to common stock	$ 0

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Convertible Senior Notes - Expenses and Interest (Details) - 3.75% Convertible Senior Notes - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Debt Instrument [Line Items]
Interest expense	$ 1,849	$ 1,849
Amortization of debt issuance costs	331	316
Total	$ 2,180	$ 2,165
Effective interest rate (as a percent)	4.50%	4.50%

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Convertible Senior Notes - Capped Call and Common Stock Forward (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	May 18, 2020	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Jan. 31, 2021	Dec. 31, 2020	May 31, 2020	May 29, 2020	Mar. 31, 2018
Common Stock Forward
Capped Call and Common Stock Forward
Net cost incurred		$ 27,500
Number of shares settled		0	0
3.75% Convertible Senior Notes
Capped Call and Common Stock Forward
Interest rate (as a percent)	3.75%	3.75%					3.75%	3.75%
Principal amount	$ 200,000	$ 197,278		$ 197,278			$ 212,500	$ 12,500
Closing stock price on grant date		$ 11.72
Convertible senior notes		$ 433,600
3.75% Convertible Senior Notes | Capped Call
Capped Call and Common Stock Forward
Capped call options amount	$ 16,200
Cap price	$ 6.7560
Premium (as a percent)	60.00%
Closing stock price on grant date	$ 4.11
5.5% Convertible Senior Notes
Capped Call and Common Stock Forward
Interest rate (as a percent)					5.50%	5.50%	5.50%		5.50%
Principal amount					$ 200	$ 33,500			$ 100,000
5.5% Convertible Senior Notes | Common Stock Forward
Capped Call and Common Stock Forward
Common stock shares issued		14,397,906

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Stockholders' Equity - Common Stock and Warrants (Details)	Aug. 24, 2022 shares
2022 Amazon transaction agreement
Stockholders' equity
Shares of common stock that can be purchased from warrants issued (in shares)	16,000,000

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Stockholders' Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated other comprehensive income
Balance	$ 4,060,214	$ 4,605,696
Balance	3,921,650	4,476,232
AOCI attributable to parent
Accumulated other comprehensive income
Balance	(26,004)	(1,532)
Net current-period other comprehensive loss	6,970	(16,930)
Balance	(19,034)	(18,462)
Gains and Losses on Available-For-Sale Securities
Accumulated other comprehensive income
Balance	(749)	(150)
Balance	(749)	(150)
Unrealized Gains and Losses on Available-For-Sale Securities
Accumulated other comprehensive income
Balance	(19,472)	(67)
Net current-period other comprehensive loss	5,311	(15,080)
Balance	(14,161)	(15,147)
Foreign Currency Items
Accumulated other comprehensive income
Balance	(5,783)	(1,315)
Net current-period other comprehensive loss	1,659	(1,850)
Balance	$ (4,124)	$ (3,165)

XML

Warrant Transaction Agreements - Amazon.com, Inc. Transaction Agreement (Details) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Aug. 24, 2022 USD ($) $ / shares D shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) shares	Dec. 31, 2022 $ / shares shares	Dec. 31, 2021 shares	Apr. 30, 2017 shares	Apr. 04, 2017 shares
Class of Warrant or Right [Line Items]
Minimum percentage of warrants vested and exercisable automatically		60.00%
Par value, common stock | $ / shares		$ 0.01		$ 0.01
Selling, general and administrative | $		$ 104,016	$ 80,890
Provision for Loss Contracts Related to Service | $		$ 221	$ (7,297)
Warrants issued with the Amazon, Inc transaction agreement
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares)						55,286,696	55,286,696
Number of warrants exercised (in shares)		27,600,000	24,704,450
Warrant shares vested (in shares)					55,286,696
Warrants issued with the Amazon, Inc transaction agreement | Amazon
Class of Warrant or Right [Line Items]
Number of warrants exercised (in shares)		27,600,000		24,704,450
Warrant Issued With Amazon
Class of Warrant or Right [Line Items]
Cash payments to be received under agreement | $	$ 2,100,000
Warrant percentage weighted average share price	90.00%
Warrant Issued With Amazon | Vesting of First Warrants Shares
Class of Warrant or Right [Line Items]
Number of warrants exercisable	9,000,000
Warrant shares vested (in shares)	9,000,000
Exercise price of warrants (in dollars per share) | $ / shares	$ 22.9841
Fair value of warrants per share | $ / shares	$ 20.36
Warrant Issued With Amazon | Vesting of Remaining Warrants Shares
Class of Warrant or Right [Line Items]
Warrant shares vested (in shares)	7,000,000
Warrant Issued With Amazon | Vest in multiple tranches
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares)	15,000,000
Vesting period	7 years
Warrant shares vested (in shares)	15,000,000
2022 Amazon transaction agreement
Class of Warrant or Right [Line Items]
Shares of common stock that can be purchased from warrants issued (in shares)	16,000,000
Reduction in revenue | $		$ 1,100
Warrant shares vested (in shares)		1,000,000
Class Of Warrant Or Right Exercisable on Vesting Threshold Trading Days | D	30
Warrant charge capitalized | $		$ 20,400
2022 Amazon transaction agreement | Vest immediately upon issuance
Class of Warrant or Right [Line Items]
Warrant shares vested (in shares)	1,000,000
2022 Amazon transaction agreement | Tranches 1-3 | Risk free interest rate
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input	0.0315
2022 Amazon transaction agreement | Tranches 1-3 | Volatility
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input	0.7500
2022 Amazon transaction agreement | Tranches 1-3 | Expected average term
Class of Warrant or Right [Line Items]
Expected average term	7 years
2022 Amazon transaction agreement | Tranches 1-3 | Exercise price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares	22.98
2022 Amazon transaction agreement | Tranches 1-3 | Stock price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares	20.36
2022 Amazon transaction agreement | Tranche 4 | Risk free interest rate
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input		0.0350
2022 Amazon transaction agreement | Tranche 4 | Volatility
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input		0.7500
2022 Amazon transaction agreement | Tranche 4 | Expected average term
Class of Warrant or Right [Line Items]
Expected average term		4 years
2022 Amazon transaction agreement | Tranche 4 | Exercise price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares		10.55
2022 Amazon transaction agreement | Tranche 4 | Stock price
Class of Warrant or Right [Line Items]
Warrants and rights outstanding measurement input | $ / shares		11.72

XML

Warrant Transaction Agreements - Walmart Stores, Inc. Transaction Agreement (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) shares	Dec. 31, 2022 shares	Jul. 31, 2017 shares	Jul. 20, 2017 shares
Warrants issued with the Walmart Stores, Inc transaction agreement
Warrant Transaction Agreements
Shares of common stock that can be purchased from warrants issued (in shares)				55,286,696	55,286,696
Reduction in revenue | $	$ 12.9	$ 1.7
Warrant shares vested (in shares)	27,643,347		27,643,347
Number of warrants exercised (in shares)	13,094,217	13,094,217	13,094,217
Walmart | Warrants issued with the Walmart Stores, Inc transaction agreement
Warrant Transaction Agreements
Number of warrants exercised (in shares)	0	0
Walmart | Tranche one of warrants issued with the Walmart Stores Inc transaction agreement | Risk free interest rate
Warrant Transaction Agreements
Warrants and rights outstanding measurement input	0.0355
Walmart | Tranche one of warrants issued with the Walmart Stores Inc transaction agreement | Volatility
Warrant Transaction Agreements
Warrants and rights outstanding measurement input	0.7500
Walmart | Tranche one of warrants issued with the Walmart Stores Inc transaction agreement | Expected average term
Warrant Transaction Agreements
Expected average term	3 years 6 months
Warrants and rights outstanding measurement input	3.5
Walmart | Tranche one of warrants issued with the Walmart Stores Inc transaction agreement | Exercise price
Warrant Transaction Agreements
Warrants and rights outstanding measurement input | $ / shares	10.55
Walmart | Tranche one of warrants issued with the Walmart Stores Inc transaction agreement | Stock price
Warrant Transaction Agreements
Warrants and rights outstanding measurement input | $ / shares	11.72

XML

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue
Net revenue	$ 210,286	$ 140,804
Sales of fuel cell systems
Revenue
Net revenue	28,852	37,528
Sale of hydrogen infrastructure
Revenue
Net revenue	48,868	27,089
Sale of electrolyzers
Revenue
Net revenue	40,032	4,059
Sales of engineered equipment
Revenue
Net revenue	7,753	21,968
Services performed on fuel cell systems and related infrastructure
Revenue
Net revenue	9,097	8,240
Power purchase agreements
Revenue
Net revenue	7,937	10,037
Fuel delivered to customers and related equipment
Revenue
Net revenue	10,142	13,429
Sales of cryogenic equipment and other
Revenue
Net revenue	56,589	18,203
Other
Revenue
Net revenue	$ 1,016	$ 251

XML

Revenue - Contract balances (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Revenue
Accounts receivable	$ 127,720	$ 129,450
Contract assets	124,430	104,287
Deferred revenue and contract liabilities	$ 220,150	$ 229,898

XML

Revenue - Changes in contract assets and contract liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Contract assets
Net change in contract assets	$ (14,677)	$ 44
Contract liabilities
Increases due to cash received, net of amounts recognized as revenue during the period	80,740		$ 200,347
Contract liabilities assumed as part of acquisition			10,011
Revenue recognized that was included in the contract liability balance as of the beginning of the period	(90,488)		(163,550)
Net change in deferred revenue and contract liabilities	(9,748)		46,808
Sales of fuel cell systems
Contract assets
Transferred to receivables from contract assets recognized at the beginning of the period	(19,709)		(33,394)
Contract assets related to warrants	5,577		26,455
Revenue recognized and not billed as of the end of the period	34,275		72,469
Net change in contract assets	$ 20,143		$ 65,530

XML

Revenue - Estimated future revenue (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Revenue
Total estimated future revenue	$ 1,094,374
Sales of fuel cell systems
Revenue
Total estimated future revenue	53,578
Sale of hydrogen installations and other infrastructure
Revenue
Total estimated future revenue	21,807
Sale of electrolyzers
Revenue
Total estimated future revenue	281,720
Sales of engineered equipment
Revenue
Total estimated future revenue	16,628
Services performed on fuel cell systems and related infrastructure
Revenue
Total estimated future revenue	121,418
Power purchase agreements
Revenue
Total estimated future revenue	385,096
Fuel delivered to customers and related equipment
Revenue
Total estimated future revenue	92,470
Sales of cryogenic equipment and other
Revenue
Total estimated future revenue	$ 121,657
Maximum | Sales of fuel cell systems
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	1 year
Maximum | Sale of hydrogen installations and other infrastructure
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	1 year
Maximum | Services performed on fuel cell systems and related infrastructure
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	10 years
Maximum | Power purchase agreements
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	10 years
Minimum | Services performed on fuel cell systems and related infrastructure
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	5 years
Minimum | Power purchase agreements
Revenue
Duration of estimated revenue expected to be recognized in future (in years)	5 years

XML

Revenue - Contract costs (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Revenue
Capitalized contract costs	$ 0.6	$ 0.6

XML

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Taxes
Income tax benefit	$ (1,270)	$ (414)

XML

Fair Value Measurements - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Fair Value Measurements
Transfers between Level 1, Level 2, and Level 3	$ 0.0
Payments to acquire equity method investments	$ 40.1

XML

Fair Value Measurements - Assets and liabilities measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 14, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value
Change in fair value of contingent consideration		$ 8,769	$ 2,461
Recurring basis | Level 1 | Cash and cash equivalents
Fair Value
Assets, Fair Value		208,358			$ 212,577
Recurring basis | Level 1 | U.S. Treasuries
Fair Value
Assets, Fair Value		864,508			1,139,310
Recurring basis | Level 1 | Equity securities
Fair Value
Assets, Fair Value		139,911			134,836
Recurring basis | Level 2 | Corporate bonds
Fair Value
Assets, Fair Value		163,863			193,633
Recurring basis | Level 3 | Contingent consideration
Fair Value
Liabilities, Fair value		123,473			116,165
Applied Cryo Technologies
Fair Value
Contingent consideration				$ 19,000
Joule Processing LLC
Fair Value
Contingent consideration	$ 130,000	41,700
Change in fair value of contingent consideration		6,700
Consideration paid	$ 69,872
Carrying value | Recurring basis | Contingent consideration
Fair Value
Liabilities, Fair value		123,473			116,165
Carrying value | Recurring basis | Cash and cash equivalents
Fair Value
Assets, Fair Value		208,358			212,577
Carrying value | Recurring basis | Corporate bonds
Fair Value
Assets, Fair Value		163,863			193,633
Carrying value | Recurring basis | U.S. Treasuries
Fair Value
Assets, Fair Value		864,508			1,139,310
Carrying value | Recurring basis | Equity securities
Fair Value
Assets, Fair Value		139,911			134,836
Fair value | Recurring basis | Contingent consideration
Fair Value
Liabilities, Fair value		123,473			116,165
Fair value | Recurring basis | Cash and cash equivalents
Fair Value
Assets, Fair Value		208,358			212,577
Fair value | Recurring basis | Corporate bonds
Fair Value
Assets, Fair Value		163,863			193,633
Fair value | Recurring basis | U.S. Treasuries
Fair Value
Assets, Fair Value		864,508			1,139,310
Fair value | Recurring basis | Equity securities
Fair Value
Assets, Fair Value		139,911			134,836
Fair value | Giner ELX, Inc | Contingent consideration
Fair Value
Liabilities, Fair value		13,300			14,500
Contingent consideration							$ 16,000
Change in fair value of contingent consideration		(1,300)
Fair value | United Hydrogen Group Inc | Contingent consideration
Fair Value
Liabilities, Fair value		1,600			1,500
Contingent consideration							$ 1,100
Change in fair value of contingent consideration		100
Fair value | Applied Cryo Technologies | Contingent consideration
Fair Value
Liabilities, Fair value		19,000			15,900
Contingent consideration						$ 14,000
Change in fair value of contingent consideration		3,100
Fair value | Frames Holding B.V. | Contingent consideration
Fair Value
Liabilities, Fair value		29,700			$ 31,000
Contingent consideration						$ 29,100
Change in fair value of contingent consideration		1,300
Fair value | Joule Processing LLC | Recurring basis | Contingent consideration
Fair Value
Liabilities, Fair value		59,900
Fair value | 2020 and 2021 acquisitions | Recurring basis | Contingent consideration
Fair Value
Liabilities, Fair value		$ 63,600

XML

Fair Value Measurements - Assets and liabilities measured at fair value on recurring basis that have unobservable inputs (Details) $ in Thousands	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2020 USD ($)
Recurring basis | Level 3 | Scenario based method | Credit spread | Business Combination, One | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		15.73
Recurring basis | Level 3 | Scenario based method | Credit spread | Business Combination, One | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		15.74
Recurring basis | Level 3 | Scenario based method | Discount rate | Business Combination, One | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		19.85
Recurring basis | Level 3 | Scenario based method | Discount rate | Business Combination, One | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		20.68
Recurring basis | Level 3 | Monte carlo simulation | Credit spread | Business Combination, Two
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		15.74
Recurring basis | Level 3 | Monte carlo simulation | Credit spread | Business Combination, Three
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		15.73
Recurring basis | Level 3 | Monte carlo simulation | Discount rate | Business Combination, Two | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		20.00
Recurring basis | Level 3 | Monte carlo simulation | Discount rate | Business Combination, Two | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		20.30
Recurring basis | Level 3 | Monte carlo simulation | Revenue volatility | Business Combination, Two
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		45.29
Recurring basis | Level 3 | Monte carlo simulation | Revenue volatility | Business Combination, Three | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		23.1
Recurring basis | Level 3 | Monte carlo simulation | Revenue volatility | Business Combination, Three | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		35.7
Recurring basis | Level 3 | Monte carlo simulation | Revenue volatility | Business Combination, Three | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		(35.0)
Recurring basis | Level 3 | Monte carlo simulation | Gross profit volatility | Business Combination, Three | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		23.2
Recurring basis | Level 3 | Monte carlo simulation | Gross profit volatility | Business Combination, Three | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		106.7
Recurring basis | Level 3 | Monte carlo simulation | Gross profit volatility | Business Combination, Three | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration, measurement input		(60.0)
Fair value | Giner ELX, Inc | Contingent consideration
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent consideration			$ 16,000
Fair value | United Hydrogen Group Inc | Contingent consideration
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent consideration			$ 1,100
Fair value | Recurring basis | Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration	$ 123,473	$ 116,165
Fair value | Recurring basis | Level 3 | Scenario based method | Business Combination, One
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration	87,049	85,269
Fair value | Recurring basis | Level 3 | Monte carlo simulation | Business Combination, Two
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration	11,880	11,310
Fair value | Recurring basis | Level 3 | Monte carlo simulation | Business Combination, Three
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Contingent Consideration	$ 24,544	$ 19,586

XML

Fair Value Measurements - Level 3 Instruments Reconciliation (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Reconciliations of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (i.e. Level 3)
Balance at the beginning of the period	$ 116,165
Payments	(2,000)
Fair value adjustments	$ 8,769
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Foreign currency translation adjustment	$ 539
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Liability, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Balance at the end of the period	$ 123,473

XML

Investments - Available-for-sale securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale
Amortized Cost	$ 1,045,731	$ 1,355,614
Gross Unrealized Gains	121	118
Gross Unrealized Losses	(17,481)	(22,789)
Fair Value	1,028,371	1,332,943
Corporate bonds
Debt Securities, Available-for-sale
Amortized Cost	169,804	200,735
Gross Unrealized Gains	15	7
Gross Unrealized Losses	(5,956)	(7,109)
Fair Value	163,863	193,633
U.S. Treasuries
Debt Securities, Available-for-sale
Amortized Cost	875,927	1,154,879
Gross Unrealized Gains	106	111
Gross Unrealized Losses	(11,525)	(15,680)
Fair Value	$ 864,508	$ 1,139,310

XML

Investments - Available-for-sale securities, Unrealized Loss (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Fair Value of Investments with Unrealized Losses, Less than 12 months	$ 33,678
Gross Unrealized Losses, Less than 12 months	(320)
Fair Value of Investments with Unrealized Losses,12 months or greater	449,462
Gross Unrealized Losses, 12 months or greater	(17,161)
Fair Value of Investments with Unrealized Losses	483,140
Gross Unrealized Losses	(17,481)
Corporate bonds
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Fair Value of Investments with Unrealized Losses, Less than 12 months	8,794
Gross Unrealized Losses, Less than 12 months	(226)
Fair Value of Investments with Unrealized Losses,12 months or greater	141,875
Gross Unrealized Losses, 12 months or greater	(5,730)
Fair Value of Investments with Unrealized Losses	150,669
Gross Unrealized Losses	(5,956)
U.S. Treasuries
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Fair Value of Investments with Unrealized Losses, Less than 12 months	24,884
Gross Unrealized Losses, Less than 12 months	(94)
Fair Value of Investments with Unrealized Losses,12 months or greater	307,587
Gross Unrealized Losses, 12 months or greater	(11,431)
Fair Value of Investments with Unrealized Losses	332,471
Gross Unrealized Losses	$ (11,525)

XML

Investments - Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 146,257	$ 146,256
Gross Unrealized Losses	(6,346)	(11,420)
Fair Value	139,911	134,836
Fixed income mutual funds
Debt and Equity Securities, FV-NI [Line Items]
Cost	70,257	70,257
Gross Unrealized Losses	(2,245)	(2,620)
Fair Value	68,012	67,637
Exchange traded mutual funds
Debt and Equity Securities, FV-NI [Line Items]
Cost	76,000	75,999
Gross Unrealized Losses	(4,101)	(8,800)
Fair Value	$ 71,899	$ 67,199

XML

Investments - Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Amortized Cost
Less than 12 months	$ 817,369	$ 1,045,120
12 months or greater	228,362	310,494
Amortized Cost	1,045,731	1,355,614
Fair Value
Less than 12 months	810,898	1,039,333
12 months or greater	217,473	293,610
Fair Value	1,028,371	1,332,943
Accrued interest income	$ 2,400	$ 3,000

XML

Investments - Equity Method Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 58,382	$ 22,443
HyVia SAS
Schedule of Equity Method Investments [Line Items]
Common Stock Ownership %	50.00%	50.00%
Carrying Value	$ 29,722	$ 11,281
AccionaPlug S.L.
Schedule of Equity Method Investments [Line Items]
Common Stock Ownership %	50.00%	50.00%
Carrying Value	$ 1,941	$ 2,225
SK Plug Hyverse Co. Ltd.
Schedule of Equity Method Investments [Line Items]
Common Stock Ownership %	49.00%	49.00%
Carrying Value	$ 26,719	$ 8,937

XML

Operating and Finance Lease Liabilities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Lessee, Lease, Description
Rental expense for all operating lease	$ 21.9	$ 14.0
Right of use assets, finance lease	62.4		$ 58.4
Amortization of right-of-use asset from finance lease	5.7		4.7
Prepaid rent and security deposit	6.0		$ 5.8
Finance lease, right-of-use asset, amortization and interest expense	$ 1.1	$ 0.8
Minimum
Lessee, Lease, Description
Lease Term - as Lessee	1 year
Maximum
Lessee, Lease, Description
Lease Term - as Lessee	9 years

XML

Operating and Finance Lease Liabilities - Future minimum lease payments under operating and finance leases (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Future minimum lease payments under operating lease
Remainder of 2023	$ 64,464
2024	85,832
2025	81,119
2026	71,088
2027	56,978
2028 and thereafter	102,913
Total future minimum lease payments	462,394
Less imputed interest	(134,595)
Total operating lease, liabilities	327,799
Future minimum lease payments under finance leases
Remainder of 2023	8,712
2024	11,476
2025	14,387
2026	11,529
2027	8,252
2028 and thereafter	1,330
Total future minimum lease payments	55,686
Less imputed interest	(7,660)
Total finance lease liabilities	48,026
Future minimum lease payments under operating and finance leases
Remainder of 2023	73,176
2024	97,308
2025	95,506
2026	82,617
2027	65,230
2028 and thereafter	104,243
Total future minimum payments	518,080
Less imputed interest	(142,255)
Total	$ 375,825

XML

Operating and Finance Lease Liabilities - Other information related to the operating leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Other information of operating leases
Cash payments	$ 21,648	$ 13,547
Weighted average remaining lease term (in years)	2 years 7 months 28 days	5 years 5 months 15 days
Weighted average discount rate (as a percent)	11.30%	10.90%

XML

Finance Obligation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Finance Obligation
Finance obligation under sale-leaseback transaction	$ 342,814
Current portion of finance obligation in sale-leaseback transaction	63,370	$ 58,925
Noncurrent portion of finance obligation in sale-leaseback transaction	279,444	270,315
Sale of Future revenue - debt
Finance Obligation
Finance obligation under sale-leaseback transaction	324,898	312,100
Current portion of finance obligation in sale-leaseback transaction	59,900	55,400
Noncurrent portion of finance obligation in sale-leaseback transaction	265,000	256,600
Interest on lease liabilities, finance lease	9,200	6,700
Sale/leaseback financings
Finance Obligation
Finance obligation under sale-leaseback transaction	17,916	17,200
Current portion of finance obligation in sale-leaseback transaction	3,500	3,500
Noncurrent portion of finance obligation in sale-leaseback transaction	$ 14,400	$ 13,700

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Finance Obligation - Future minimum payments under finance obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Future minimum payments under finance obligations
Remainder of 2023	$ 74,062
2024	104,550
2025	90,391
2026	73,019
2027	56,517
2028 and thereafter	46,319
Total future minimum payments	444,858
Less imputed interest	(102,044)
Total	342,814
Sale of Future revenue - debt
Future minimum payments under finance obligations
Remainder of 2023	70,471
2024	93,961
2025	88,705
2026	71,333
2027	54,831
2028 and thereafter	44,364
Total future minimum payments	423,665
Less imputed interest	(98,767)
Total	324,898	$ 312,100
Sale/leaseback financings
Future minimum payments under finance obligations
Remainder of 2023	3,591
2024	10,589
2025	1,686
2026	1,686
2027	1,686
2028 and thereafter	1,955
Total future minimum payments	21,193
Less imputed interest	(3,277)
Total	$ 17,916	$ 17,200

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Commitments and Contingencies - Concentrations of Credit Risk (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) customer	Mar. 31, 2022 customer	Dec. 31, 2022 USD ($) customer	Aug. 09, 2022 item
Customer Concentration
Federal depository insurance coverage	$ 0.3
Restricted cash	445.2		$ 383.7
Letter of credit	363.2		379.6
Letters of credit on sale/leaseback agreements	340.5		354.0
Customs related letters of credit	22.7		25.6
Construction escrow	75.5		75.5
Number of senior officers against law suits filed | item				2
Applied Cryo Technologies
Customer Concentration
Consideration held by paying agent.	5.0
Joule acquisitions
Customer Concentration
Consideration held by paying agent.	1.2
Collateral Related to Acquisitions
Customer Concentration
Consideration held by paying agent.	1.8
Collateral Related to Acquisitions | Frames Holding B.V.
Customer Concentration
Restricted cash as collateral	$ 6.5		$ 10.8
Accounts receivable | Customer concentration | One customers
Customer Concentration
Number of customers | customer	1		1
Concentration risk (as a percent)	10.00%		24.90%
Revenues | Customer concentration | Three customers
Customer Concentration
Number of customers | customer	2
Concentration risk (as a percent)	25.50%
Revenues | Customer concentration | Five customers
Customer Concentration
Number of customers | customer		5
Concentration risk (as a percent)		67.00%

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Employee Benefit Plans - Assumptions For Estimating Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Service Stock Options Awards
Employee Benefit Plans
Compensation cost	$ 8,200	$ 5,900
Performance Stock Option Awards
Employee Benefit Plans
Compensation cost	17,400	25,100
Stock Incentive Plan 2011 And 2021
Employee Benefit Plans
Compensation cost	40,181	40,768
Company's matching contributions	3,000
Cost of sales | Stock Incentive Plan 2011 And 2021
Employee Benefit Plans
Compensation cost	2,677	1,798
Research and development | Stock Incentive Plan 2011 And 2021
Employee Benefit Plans
Compensation cost	2,283	1,722
Selling, general and administrative | Stock Incentive Plan 2011 And 2021
Employee Benefit Plans
Compensation cost	$ 35,221	$ 37,248

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Employee Benefit Plans - Stock Activity, Weighted Average Exercise Price (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2022
Service Stock Options Awards
Shares
Options outstanding, beginning balance (in shares)	12,078,269
Granted (in shares)	94,550
Exercised (in shares)	(124,269)
Forfeited (in shares)	(89,017)
Options outstanding, end balance (in shares)	11,959,533			12,078,269
Options exercisable, ending balance (in shares)	6,879,596
Options unvested, ending balance (in shares)	5,079,937
Weighted Average Exercise Price
Options outstanding, beginning balance, weighted-average exercise price	$ 14.34
Granted, weighted-average exercise price	15.44
Exercised, weighted-average exercise price	5.43
Forfeited, weighted-average exercise price	22.97
Options outstanding, ending balance, weighted-average exercise price	14.38			$ 14.34
Options exercisable, ending balance, weighted-average exercise price	9.71
Options unvested, ending balance, weighted-average exercise price	$ 20.70
Stock option activity additional disclosures
Options outstanding, weighted-average remaining contractual term	7 years 4 months 2 days			7 years 6 months 25 days
Options exercisable, weighted-average remaining contractual term	6 years 2 months 26 days
Options unvested, weighted-average remaining contractual term	8 years 9 months 29 days
Options outstanding, aggregate intrinsic value	$ 38,278			$ 42,835
Options exercisable, aggregate intrinsic value	37,976
Options unvested, aggregate intrinsic value	$ 302
Weighted-average grant date fair value of options granted (per share)	$ 10.48		$ 15.34
Fair value of stock options that vested during the period		$ 7,500	$ 5,600
Granted (in shares)	94,550
Exercised (in shares)	124,269
Compensation cost	$ 8,200		5,900
Unrecognized compensation cost	$ 51,400		47,000
Period for recognition	1 year 11 months 8 days
Intrinsic fair value of options exercised	$ 1,300		$ 1,100
Performance Stock Option Awards
Shares
Options outstanding, beginning balance (in shares)	15,520,000
Options exercisable, beginning balance (in shares)	1,391,000
Options unvested, beginning balance (in shares)	14,129,000
Granted (in shares)	0		0
Exercised (in shares)	0		0
Options outstanding, end balance (in shares)	15,520,000			15,520,000
Options exercisable, ending balance (in shares)	1,391,000			1,391,000
Options unvested, ending balance (in shares)	14,129,000			14,129,000
Weighted Average Exercise Price
Options outstanding, beginning balance, weighted-average exercise price	$ 26.87
Options exercisable, beginning balance, weighted-average exercise price	26.92
Options unvested, beginning balance, weighted-average exercise price	26.86
Options outstanding, ending balance, weighted-average exercise price	26.87			$ 26.87
Options exercisable, ending balance, weighted-average exercise price	26.92			26.92
Options unvested, ending balance, weighted-average exercise price	$ 26.86			$ 26.86
Stock option activity additional disclosures
Options outstanding, weighted-average remaining contractual term	5 years 6 months 25 days			5 years 9 months 21 days
Options exercisable, weighted-average remaining contractual term	5 years 5 months 23 days			5 years 8 months 23 days
Options unvested, weighted-average remaining contractual term	5 years 6 months 29 days			5 years 9 months 25 days
Options unvested, aggregate intrinsic value	$ 0
Option expected to vest (in shares)	2,782,000
Unvested stock options expected to vest period for calculation of weighted- average exercise price	5 years 5 months 23 days
Granted (in shares)	0		0
Exercised (in shares)	0		0
Vested (in shares)	0		0
Compensation cost	$ 17,400		$ 25,100
Unrecognized compensation cost	$ 53,100
Period for recognition	1 year 7 months 17 days

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Employee Benefit Plans - Restricted Stock Activity (Details) - Restricted stock and restricted stock units outstanding - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Employee Benefit Plans
Compensation cost	$ 14,600	$ 9,800
Unrecognized compensation cost	$ 95,500	$ 83,700
Period for recognition	1 year 11 months 23 days	2 years 1 month 6 days
Fair value of restricted stock units vested	$ 13,500	$ 3,900
Shares
Unvested restricted stock, beginning balance (in shares)	6,276,376
Granted (in shares)	94,550
Vested (in shares)	(409,431)
Forfeited (in shares)	(73,482)
Unvested restricted stock, end balance (in shares)	5,888,013
Weighted Average Grant Date Fair Value
Unvested restricted stock, beginning balance, weighted average grant date fair value	$ 21.56
Granted, weighted average grant date fair value	15.44	$ 23.86
Vested, weighted average grant date fair value	32.97
Forfeited, weighted average grant date fair value	22.70
Unvested restricted stock, end balance, weighted average grant date fair value	$ 20.65
Aggregate Intrinsic Value
Unvested restricted stock, beginning balance, aggregate intrinsic value	$ 77,639
Unvested restricted stock, end balance, aggregate intrinsic value	$ 67,968

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Employee Benefit Plans - 401(K) Saving And Retirement Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Non Employee Director
Non-Employee Benefit Plan Compensation
Granted (in shares)	10,316	3,290
Compensation cost	$ 0.1	$ 0.1
Savings And Retirement Plan 401 K
401(K) Savings & Retirement Plan
Common stock, shares issued	219,970	96,539
Total expense (including issuance of shares)	$ 3.0	$ 2.2

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Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accrued Expenses
Accrued payroll and compensation related costs	$ 19,887	$ 18,231
Accrual for capital expenditures	31,346	53,089
Accrued accounts payable	93,532	53,899
Accrued sales and other taxes	9,718	15,112
Accrued interest	2,271	421
Accrued other	11,000	15,678
Total	$ 167,754	$ 156,430

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Segment Reporting (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 210,286	$ 140,804
Long-Lived Assets	$ 1,401,140		$ 1,223,115
Number of operating segments | segment	1
Number of reportable segments | segment	1
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 161,807	113,678
Long-Lived Assets	1,382,681		1,209,900
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	40,153
Long-Lived Assets	18,459		$ 13,215
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,255
Other.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 5,071	$ 27,126