8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

__________________________

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report: November 10, 2022

TECOGEN INC. (OTCQX: TGEN)

(Exact Name of Registrant as Specified in Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

001-36103	04-3536131
(Commission File Number)	(IRS Employer Identification No.)
45 First Avenue
Waltham, Massachusetts	02451
(Address of Principal Executive Offices)	(Zip Code)

(781) 466-6400

(Registrant's telephone number, including area code)

_______________________________________________

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of each class Trading Symbol Name of exchange on which registered

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). 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. o

Item 2.02. Results of Operations and Financial Condition.

On November 10, 2022, the registrant issued a press release with earnings commentary and supplemental information for the three and nine months ended September 30, 2022. The press release is furnished as Exhibit 99.01 to this Current Report on Form 8-K.

The information in this Item 2.02 and Exhibit 99.01 to this Current Report on Form 8-K shall shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 7.01. Regulation FD Disclosure.

On November 10, 2022, the registrant will present the attached slides online in connection with an earnings conference call. The slides are being furnished as Exhibit 99.02 to this Current Report on Form 8-K.

The information in this Item 7.01 and Exhibit 99.02 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

The following exhibits relating to Items 2.02 and 7.01 shall be deemed to be furnished, and not filed:

Exhibit	Description
99.01	Earnings Release dated November 10, 2022 for the three and nine months ended September 30, 2022.
99.02	Tecogen Earnings Call Presentation dated November 10, 2022.

SIGNATURES

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

	TECOGEN INC.
		By: /s/ Benjamin Locke
November 10, 2022		Benjamin Locke, Chief Executive Officer

EX-99.01

Tecogen Announces Third Quarter 2022 Results

Q3 2022 revenue of $6.6 million, an increase of 31.9% QoQ and

YTD 2022 revenue of $20.5 million, an increase of 18.9% YoY

WALTHAM, Mass., November 10, 2022 - Tecogen Inc. (OTCQX:TGEN), a leading manufacturer of clean energy products, reported revenues of $6.6 million and a net loss of $0.3 million for the quarter ended September 30, 2022 compared to revenues of $5.0 million, and a net profit of $1.5 million in 2021. For the nine months ended September 30, 2022 revenues were $20.5 million and a net loss of $1.0 million compared to revenues of $17.2 million and net income of $3.6 million for the same period in 2021. The positive net income in Q3 2021 and the nine months ended September 30, 2021 was primarily due to the benefit from the CARES Act payroll support programs.

Key Takeaways

Net Income and Earnings Per Share

•Net loss in Q3 2022 was $0.3 million compared to net income of $1.5 million in Q3 2021, a decrease of $1.7 million, primarily due to forgiveness of the PPP loan and the recognition of Employee Retention Credit in Q3 2021. EPS was a loss of $0.01/share and net income of $0.06/share in Q3 2022 and Q3 2021, respectively.

•Net loss in YTD 2022 was $1.0 million compared to net income of $3.6 million in 2021, a decrease of $4.7 million, primarily due to the forgiveness of the PPP loan and the recognition of Employee Retention Credits in 2021. EPS was a net loss of $0.04/share and net income of $0.14/share in YTD 2022 and YTD 2021, respectively.

Profit/Loss from Operations

•Loss from operations for the three months ended September 30, 2022 was $0.2 million compared to a loss of $0.9 million for the same period in 2021, a decrease of $0.7 million. Increased Products and Services revenue and gross profit caused the decrease in loss from operations.

•Loss from operations for YTD 2022 was $1.0 million compared to a loss of $1.4 million for the same period in 2021, a decrease of $0.4 million. Increased Product revenue and gross profit caused the decrease in loss from operations.

Revenues

•Revenues for the quarter ended September 30, 2022 were $6.6 million compared to $5.0 million for the same period in 2021, a 31.9% increase.

◦Product revenue was $3.2 million in Q3 2022 compared to $1.9 million in the same period in 2021, an increase of 71.4%, primarily due to increased chiller and cogeneration sales into our key market segments including multi-unit residential.

◦Services revenue was $3.1 million in Q3 2022 compared to $2.8 million in the same period in 2021, an increase of 8.8%, primarily due to increased service contract revenue.

◦Energy Production revenue increased 5.5%, to $333 thousand in Q2 2022 compared to $315 thousand in the same period in 2021.

•Revenues for YTD 2022 were $20.5 million compared to $17.2 million for the same period in 2021, a 18.9% increase.

◦Product revenue was $10.2 million YTD 2022 compared to $6.4 million in the same period in 2021, an increase of 57.7%, primarily due to increased cogeneration and chiller sales into our key market segments including controlled environment agriculture.

◦Services revenue was $9.0 million YTD 2022 compared to $9.4 million in the same period in 2021, a decline of 4.2%, primarily due to reduced lower margin installation activity. Services contract revenue increased 4.8% to $9.0 million YTD 2022 compared to $8.6 million in the same period of 2021.

◦Energy Production revenue decreased 5.3%, to $1.27 million in YTD 2022 compared to $1.34 million in the same period in 2021 due to site closures.

Gross Profit and Gross Margin

•Gross profit for Q3 2022 was $2.9 million compared to $2.3 million in the third quarter of 2021. Gross margin decreased to 43.7% in the third quarter of 2022 compared to 46.7% for the same period in 2021 due to higher material costs. Products margin decreased from 44.6% to 35.3%. Services margin increased from 48.1% to 51.8% and Energy Production margin increased from 45.9% to 49.5% quarter to quarter.

•Gross profit for YTD 2022 was $8.7 million compared to $8.1 million in the same period in 2021. Gross margin decreased to 42.4% YTD 2022 compared to 47.3% for the same period in 2021 due to higher material costs. Product margin decreased from 44.1% to 33.7%. Services margin increased from 50.4% to 52.2% and Energy Production margin increased from 40.5% to 42.7% year over year.

Operating Expenses

•Operating expenses decreased by 4.4% to $3.1 million for the third quarter of 2022 compared to $3.3 million in the same period in 2021 due to lower bad debt expense, partially offset by increased R&D costs.

•Operating expenses increased by 1.5% to $9.6 million YTD 2022 compared to $9.5 million in the same period in 2021 due to increase payroll and R&D costs, partially offset by lower bad debt expense in 2022.

Adjusted EBITDA(1) was negative $72 thousand for the third quarter of 2022 compared to a negative $197 thousand for the third quarter of 2021. Adjusted EBITDA(1) was negative $521 thousand YTD 2022 compared to $391 thousand YTD 2021. (Adjusted EBITDA is defined as net income or loss attributable to Tecogen, adjusted for interest, income taxes, depreciation and amortization, stock-based compensation expense, unrealized gain or loss on equity securities, goodwill impairment charges and other non-cash non-recurring charges or gains including abandonment of intangible assets and the extinguishment of debt. See the table following the Condensed

Consolidated Statements of Operations for a reconciliation from net income (loss) to Adjusted EBITDA, as well as important disclosures about the company's use of Adjusted EBITDA).

“I'm encouraged by the year on year revenue growth. As electricity rates continue to rise, the need for customers to find alternative ways to reduce energy expenses is making our products increasingly attractive. The 40% investment tax credit (a 30% base and 10% bonus for domestic manufacturers) makes the climate favorable for energy efficient products such as ours. In particular the availability of the ITC direct pay option for non-profits makes the value proposition for our cogeneration and chillers incredibly compelling," commented Benjamin Locke, Tecogen's Chief Executive Officer.

Conference Call Scheduled for November 10, 2022, at 11:00 am ET

Tecogen will host a conference call on November 10, 2022 to discuss the third quarter results beginning at 11:00 am eastern time. To listen to the call please dial (877) 407-7186 within the U.S. and Canada, or (201) 689-8052 from other international locations. Participants should ask to be joined to the Tecogen Third Quarter 2022 earnings call. Please begin dialing 10 minutes before the scheduled starting time. The earnings press release will be available on the Company website at www.Tecogen.com in the "News and Events" section under "About Us." The earnings conference call will be webcast live. To view the associated slides, register for and listen to the webcast, go to https://ir.tecogen.com/ir-calendar. Following the call, the recording will be archived for 14 days.

The earnings conference call will be recorded and available for playback one hour after the end of the call. To listen to the playback, dial (877) 660-6853 within the U.S. and Canada, or (201) 612-7415 from other international locations and use Conference Call ID#: 13672659.

About Tecogen

Tecogen Inc. designs, manufactures, sells, installs, and maintains high efficiency, ultra-clean, cogeneration products including engine-driven combined heat and power, air conditioning systems, and high-efficiency chillers and water heaters for residential, commercial, recreational and industrial use that provide cost effective, environmentally friendly and reliable products for energy production that nearly eliminate criteria pollutants and significantly reduce a customer’s carbon footprint.

In business for over 35 years, Tecogen has shipped more than 3,150 units, supported by an established network of engineering, sales, and service personnel across the United States. For more information, please visit www.tecogen.com or contact us for a free Site Assessment.

Tecogen, InVerde e+, Ilios, Tecochill, Tecopower, Tecofrost, Tecopack, Ultera, and NetZero Greens are registered or pending trademarks of Tecogen Inc.

Forward Looking Statements

This press release and any accompanying documents, contain “forward-looking statements” which may describe strategies, goals, outlooks or other non-historical matters, or projected revenues, income, returns or other financial measures, that may include words such as "believe," "expect," "anticipate," "intend," "plan,"  "estimate," "project," "target," "potential," "will," "should," "could," "likely," or "may" and similar expressions intended to identify forward-looking statements. These statements are only predictions and involve known and unknown risks, uncertainties, and other factors that may cause our actual results to differ materially from those expressed or implied by such forward-looking statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Forward-looking statements speak only as of the date on which they are made, and we undertake no obligation to update or revise any forward-looking statements.

In addition to those factors described in our Annual Report on Form 10-K, our Quarterly Reports on Form 10-Q and on our Form 8-K, under “Risk Factors”, among the factors that could cause actual results to differ materially from past and projected future results are the following: fluctuations in demand for our products and services, competing technological developments, issues relating to research and development, the availability of incentives, rebates, and tax benefits relating to our products and services, changes in the regulatory environment relating to our products and services, integration of acquired business operations, and the ability to obtain financing on favorable terms to fund existing operations and anticipated growth.

In addition to GAAP financial measures, this press release includes certain non-GAAP financial measures, including adjusted EBITDA which excludes certain expenses as described in the presentation. We use Adjusted EBITDA as an internal measure of business operating performance and believe that the presentation of non-GAAP financial measures provides a meaningful perspective of the underlying operating performance of our current business and enables investors to better understand and evaluate our historical and prospective operating performance by eliminating items that vary from period to period without correlation to our core operating performance and highlights trends in our business that may not otherwise be apparent when relying solely on GAAP financial measures.

Tecogen Media & Investor Relations Contact Information:

Benjamin Locke

P: 781-466-6402

E: Benjamin.Locke@tecogen.com

TECOGEN INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited)

	September 30, 2022		December 31, 2021
ASSETS
Current assets:
Cash and cash equivalents	$	2,880,160	$	3,614,463
Accounts receivable, net	8,598,302		8,482,286
Employee retention credit receivable	713,269		1,276,021
Inventories, net	8,712,021		7,764,989
Unbilled revenue	1,956,002		3,258,189
Prepaid and other current assets	507,996		578,801
Total current assets	23,367,750		24,974,749
Long-term assets:
Property, plant and equipment, net	1,661,694		1,782,944
Right of use assets	1,404,034		1,869,210
Intangible assets, net	1,047,296		1,181,023
Goodwill	2,406,156		2,406,156
Other assets	184,393		148,140
TOTAL ASSETS	$	30,071,323	$	32,362,222
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	3,325,452	$	3,508,354
Accrued expenses	2,263,009		2,343,728
Deferred revenue	1,282,971		1,957,752
Lease obligations, current	676,974		641,002
Unfavorable contract liability, current	265,854		330,032
Total current liabilities	7,814,260		8,780,868
Long-term liabilities:
Deferred revenue, net of current portion	395,561		208,456
Lease obligations, net of current portion	796,696		1,315,275
Unfavorable contract liability, net of current portion	706,667		929,474
Total liabilities	9,713,184		11,234,073
Stockholders’ equity:
Tecogen Inc. shareholders’ equity:
Common stock, $0.001 par value; 100,000,000 shares authorized; 24,850,261 issued and outstanding at September 30, 2022 and December 31, 2021	24,850		24,850
Additional paid-in capital	57,271,577		57,016,859
Accumulated deficit	(36,857,142)		(35,833,621)
Total Tecogen Inc. stockholders’ equity	20,439,285		21,208,088
Non-controlling interest	(81,146)		(79,939)
Total stockholders’ equity	20,358,139		21,128,149
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	30,071,323	$	32,362,222

TECOGEN INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

	Three Months Ended
	September 30, 2022		September 30, 2021
Revenues
Products	$	3,206,732	$	1,871,332
Services	3,078,604		2,829,244
Energy production	332,774		315,292
Total revenues	6,618,110		5,015,868
Cost of sales
Products	2,074,243		1,036,396
Services	1,482,355		1,467,019
Energy production	168,178		170,518
Total cost of sales	3,724,776		2,673,933
Gross profit	2,893,334		2,341,935
Operating expenses
General and administrative	2,343,449		2,473,190
Selling	567,529		656,885
Research and Development	202,138		122,031
Gain on disposition of assets	(5,486)		—
Total operating expenses	3,107,630		3,252,106
Loss from operations	(214,296)		(910,171)
Other income (expense)
Other income (expense), net	(7,140)		(4,798)
Interest expense	(2,280)		(3,855)
Employee retention credit	—		562,253
Unrealized loss on investment securities	—		(37,497)
Total other income (expense), net	(9,420)		2,401,758
Income (loss) before provision for state income taxes	(223,716)		1,491,587
Provision for state income taxes	5,922		3,000
Consolidated net income (loss)	(229,638)		1,488,587
Income attributable to the non-controlling interest	(27,074)		(21,890)
Net income (loss) attributable to Tecogen Inc.	$	(256,712)	$	1,466,697
Net income per share - basic	$	(0.01)	$	0.06
Net income per share - diluted	$	(0.01)	$	0.06
Weighted average shares outstanding - basic	24,850,261		24,850,261
Weighted average shares outstanding - diluted	24,850,261		25,154,905

	Three Months Ended
	September 30, 2022		September 30, 2021
Non-GAAP financial disclosure (1)
Net income (loss) attributable to Tecogen Inc.	$	(256,712)	$	1,466,697
Interest expense, net	2,280		8,653
Income taxes	5,922		3,000
Depreciation & amortization, net	107,250		116,166
EBITDA	(141,260)		1,594,516
Stock based compensation	69,118		56,889
Unrealized loss on investment securities	—		37,497
Adjusted EBITDA	$	(72,142)	$	(196,753)

TECOGEN INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

	Nine Months Ended
	September 30, 2022		September 30, 2021
Revenues
Products	$	10,156,328	$	6,439,981
Services	9,046,075		9,438,702
Energy production	1,268,623		1,339,448
Total revenues	20,471,026		17,218,131
Cost of sales
Products	6,734,465		3,601,408
Services	4,322,693		4,684,008
Energy production	726,297		796,933
Total cost of sales	11,783,455		9,082,349
Gross profit	8,687,571		8,135,782
Operating expenses
General and administrative	7,642,183		7,365,495
Selling	1,572,221		1,747,959
Research and development	537,126		381,064
Gain on disposition of assets	(41,931)		—
Gain on termination of unfavorable contract liability	(71,375)		—
Total operating expenses	9,638,224		9,494,518
Loss from operations	(950,653)		(1,358,736)
Other income (expense)
Interest and other income (expense), net	(22,556)		(7,127)
Interest expense	(15,841)		(13,583)
Gain on extinguishment of debt	—		3,773,014
Employee retention credit	—		1,276,021
Gain on sale of investment securities	—		6,046
Unrealized gain on investment securities	37,497		18,749
Total other income (expense), net	(900)		5,053,120
Income (loss) before provision for state income taxes	(951,553)		3,694,384
Provision for state income taxes	16,352		18,991
Consolidated net income (loss)	(967,905)		3,675,393
Income attributable to non-controlling interest	(55,616)		(42,358)
Net income (loss) attributable to Tecogen Inc.	$	(1,023,521)	$	3,633,035
Net income (loss) per share - basic	$	(0.04)	$	0.15
Net income (loss) per share - diluted	$	(0.04)	$	0.14
Weighted average shares outstanding - basic	24,850,261		24,850,261
Weighted average shares outstanding - diluted	24,850,261		25,131,165

	Nine Months Ended
	September 30, 2022		September 30, 2021
Non-GAAP financial disclosure (1)
Net income (loss) attributable to Tecogen Inc.	$	(1,023,521)	$	3,633,035
Interest expense, net	15,841		20,710
Income taxes	16,352		18,991
Depreciation & amortization, net	324,968		357,636
EBITDA	(666,360)		4,030,372
Gain on extinguishment of debt	—		(3,773,014)
Stock based compensation	254,718		150,655
Unrealized gain on marketable securities	(37,497)		(18,749)
Gain on sale of marketable securities	—		(6,046)
Gain on termination of unfavorable contract liability	(71,375)		—
Non-cash abandonment of intangible assets	—		7,400
Adjusted EBITDA	$	(520,514)	$	390,618

(1) Non-GAAP Financial Measures

In addition to reporting net income, a U.S. generally accepted accounting principle (“GAAP”) measure, this news release contains information about Adjusted EBITDA (net income (loss) attributable to Tecogen Inc adjusted for interest, income taxes, depreciation and amortization, stock-based compensation expense, unrealized gain or loss on investment securities, goodwill impairment charges and other non-cash non-recurring charges including abandonment of certain intangible assets and extinguishment of debt), which is a non-GAAP measure.  The Company believes Adjusted EBITDA allows investors to view its performance in a manner similar to the methods used by management and provides additional insight into its operating results.  Adjusted EBITDA is not calculated through the application of GAAP.  Accordingly, it should not be considered as a substitute for the GAAP measure of net income and, therefore, should not be used in isolation of, but in conjunction with, the GAAP measure.  The use of any non-GAAP measure may produce results that vary from the GAAP measure and may not be comparable to a similarly defined non-GAAP measure used by other companies.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

	Nine Months Ended
	September 30, 2022		September 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Consolidated net income (loss)	$	(967,905)	$	3,675,393
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	324,968		357,636
Provision for doubtful accounts	(183,955)		52,000
Gain on extinguishment of debt	—		(3,773,014)
Employee retention credit	—		(1,276,021)
Stock-based compensation	254,718		150,655
Gain on sale of investment securities	—		(6,046)
Unrealized gain on investment securities	(37,497)		(18,749)
Gain on disposition of assets	(41,931)		(9,787)
Gain on termination of unfavorable contract liability	(71,375)		—
Impairment of intangible asset	—		7,400
Changes in operating assets and liabilities
(Increase) decrease in:
Accounts receivable	67,940		890,374
Employee retention credit receivable	562,752		—
Inventory	(947,031)		(753,447)
Prepaid assets and other current assets	70,806		24,361
Other assets	466,420		(387,847)
Increase (decrease) in:
Accounts payable	(182,903)		(636,156)
Accrued expenses and other current liabilities	(80,720)		378,970
Deferred revenue	(487,676)		691,867
Other liabilities	(482,608)		379,440
Net cash used in operating activities	(433,810)		171,996
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(286,820)		(84,160)
Proceeds from disposition of assets	72,655		9,787
Proceeds from the sale of investment securities	—		11,637
Purchases of intangible assets	(29,505)		(56,349)
Distributions to non-controlling interest	(56,823)		(66,168)
Net cash used in investing activities	(300,493)		(185,253)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from note payable	—		1,874,269
Net cash provided by financing activities	—		1,874,269
Change in cash and cash equivalents	(734,303)		1,861,012
Cash and cash equivalents, beginning of the period	3,614,463		1,490,219
Cash and cash equivalents, end of the period	$	2,880,160	$	3,351,231

EX-99.02

OTCQX: TGEN NOVEMBER 10, 2022 Q3 2022 EARNINGS CALL 1

MANAGEMENT Benjamin Locke - CEO Abinand Rangesh – CFO & Treasurer Robert Panora – COO & President Jack Whiting – General Counsel & Secretary 2

SAFE HARBOR STATEMENT This presentation and accompanying documents contain “forward-looking statements” which may describe strategies, goals, outlooks or other non- historical matters, or projected revenues, Income, returns or other financial measures, that may include words such as "believe," "expect," "anticipate," "intend," "plan," "estimate," "project," "target," "potential," "will," "should," "could," "likely," or "may" and similar expressions intended to identify forward-looking statements. These statements are only predictions and involve known and unknown risks, uncertainties, and other factors that may cause our actual results to differ materially from those expressed or implied by such forward-looking statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Forward-looking statements speak only as of the date on which they are made, and we undertake no obligation to update or revise any forward-looking statements. In addition to those factors described in our Annual Report on Form 10-K and our Quarterly Reports on Form 10-Q under “Risk Factors”, among the factors that could cause actual results to differ materially from past and projected future results are the following: fluctuations in demand for our products and services, competing technological developments, issues relating to research and development, the availability of incentives, rebates, and tax benefits relating to our products and services, changes in the regulatory environment relating to our products and services, integration of acquired business operations, and the ability to obtain financing on favorable terms to fund existing operations and anticipated growth. In addition to GAAP financial measures, this presentation includes certain non-GAAP financial measures, including adjusted EBITDA which excludes certain expenses as described in the presentation. We use Adjusted EBITDA as an internal measure of business operating performance and believe that the presentation of non-GAAP financial measures provides a meaningful perspective of the underlying operating performance of our current business and enables investors to better understand and evaluate our historical and prospective operating performance by eliminating items that vary from period to period without correlation to our core operating performance and highlights trends in our business that may not otherwise be apparent when relying solely on GAAP financial measures. 3

AGENDA Tecogen Overview 3Q 2022 Results Earnings Takeaways Company Update Q&A 4

Providing resiliency and energy savings with a cleaner environmental footprint Units Shipped 5

POWER GENERATION + RESILIENCY CLEAN COOLING Chillers with lower operating cost and lower greenhouse gas footprint compared to competing chillers LOW CARBON INDOOR AGRICULTURE Modular microgrids for energy savings, greenhouse gas (GHG) reductions and resiliency to grid outages Boosting plant growth with CO2 exhaust recycling and our Ultera® Emissions system

REVENUE SEGMENTS We service most purchased Tecogen equipment in operation through long term maintenance agreements through 11 service centers in North America. SERVICES CLEAN, GREEN POWER, COOLING AND HEAT Sales of combined heat and power, and clean cooling systems to building owners. Key market segments include multifamily residential, health care and indoor cultivation. PRODUCT SALES We sell electrical energy and thermal energy produced by our equipment onsite at customer facilities. ENERGY SALES 7

3Q 2022 RESULTS Highlights • Net loss of $-0.01/share Q3 2022 • Net loss $257k • Cash and equivalents balance of $2.9 million Revenue = $6.6 million • Compared to $5 million in 3Q ’21, 32% increase • All segments up Gross Margin of 44% due to higher cost of material Op Ex = $3.11 million Operating Loss $214k Net Loss of $257k 8 $ in thousands 3Q' 22 3Q' 21 Change % Revenue Products $ 3,207 $ 1,871 $ 1,335 Service 3,079 2,830 248 Energy Production 333 315 17 Total Revenue 6,618 5,016 1,602 31.9% Gross Profit Products 1,132 835 298 Service 1,596 1,362 234 Energy Production 165 145 20 Total Gross Profit 2,893 2,342 551 23.5% Gross Margin: % Products 35% 45% -9% Service 52% 48% 4% Energy Production 49% 46% 3% Total Gross Margin 44% 47% -3% Operating Expenses General & administrative 2,343 2,473 (130) Selling 568 657 (89) Research and development 202 122 80 Total operating expenses 3,108 3,252 (139) -4.3% Operating profit (loss) (214) (910) 696 76.5% Net Income (loss) $ (257) $ 1,467 $ (1,723) -117.5%

3Q 2022 ADJUSTED EBITDA RECONCILIATION EBITDA: Earnings Before Interest, Taxes, Depreciation & Amortization EBITDA and adjusted EBITDA were a loss of $141k and $72k, respectively EBITDA Non-cash adjustments • Gain on extinguishment of debt • Stock based compensation • Unrealized loss on marketable securities *Adjusted EBITDA is defined as net Income (loss) attributable to Tecogen Inc, adjusted for interest, depreciation and amortization, stock- based compensation expense, unrealized loss on investment securities, non-cash abandonment of intangible assets, goodwill impairment and other non-recurring charges or gains including abandonment of certain intangible assets and extinguishment of debt 9 Non-GAAP financial disclosure (in thousands) 2022 2021 Net income (loss) attributable to Tecogen Inc. (257)$ 1,467$ Interest expense, net 2 9 Income tax expense 6 3 Depreciation & amortization, net 107 116 EBITDA (141) 1,595 Gain on extinguishment of debt - (1,886) Stock based compensation 69 57 Unrealized loss on marketable securities - 37 Adjusted EBITDA* (72)$ (197)$ Quarter Ended, Sept 30

3Q 22 PERFORMANCE BY SEGMENT Product Revenue increased 71% QoQ • 329% gain in chiller revenues Service Revenue increased 9% QoQ • Installation services down 100% QoQ • Service contracts (O&M) up 11% QoQ • Services Gross Margin at 52% Energy Production Revenue increased 6% QoQ Gross Margin 44% 10 ($ thousands) 3Q' 2022 3Q' 2021 Change % Revenues Cogeneration 1,548$ 1,446$ 7% Chiller 1,642 383 329% Engineered accessories 16 42 -61% Total Product Revenues 3,207 1,871 71% Service Contracts 3,079 2,767 11% Installation Services - 63 -100% Total Service Revenues 3,079 2,830 9% Energy Production 333 315 6% Total Revenues 6,618 5,016 32% Cost of Sales - Products 2,074 1,036 100% Services 1,482 1,467 1% Energy Production 168 171 -2% Total Cost of Sales 3,725 2,674 39% Gross Profit 2,893 2,342 24% Net income (loss) (257)$ 1,467$ Gross Margin Products 35% 45% Services 52% 48% Energy Production 50% 47% Overall 44% 46% Gross Margin 2022 2021 Target Overall 44% 46% >40%

3Q’ 22 EARNINGS TAKEAWAYS Q3 Revenues up 32% over Q3 2021 • 3Q Product Revenue $3.2 mm – 71% increase vs. 3Q-21 • Price increases ongoing to address higher manufacturing costs • Continued progress in controlled environment agriculture, Multi-family residential, schools/municipalities • New sales partner relationships established in 2022 have resulted in orders in Q3 and Q4 • New Investment Tax Credit (ITC) upwards of 40% will help create new sales • Collaboration with GTI for testing of new Hybrid Drive chiller • 3Q ending backlog of $6.9 million. Current backlog at $9.35 million 11 Multi-Family Residential 26% Controlled Environment Agriculture 35% School 9% Other 28% Healthcare 2% Backlog by Customer Type

ENABLING LOW CARBON AGRICULTURE 12 Offers significant operating savings, precision climate control, resiliency, and GHG reductions. Electricity & Cooling Using smart computer algorithms, our Cogeneration + Hybrid drive chiller will blend utility or solar power with engine power to choose the greenest and lowest cost source of energy. Hot water for cleaning, heating, and humidity control CO2 to boost plant growth CEA Benefits: ✓ 90% less land and water usage ✓ Avoids the use of fertilizers made from fossil fuels ✓ 100% Organic with no harmful pesticides

Indoor Agriculture with Grow lights Outdoor Agriculture Energy Intensity High Net Zero Target Low Embedded CO2 due to Transportation Low Low High Off-Grid Operation No Yes No Crop Cycles Per year >15 >15 1 to 2 Water Usage Low Low High COMPARED TO THE ALTERNATIVES

✓ Phase 1 – Prototype energy solution and due diligence for pilot grow facility ✓ Phase 2 – Partnership with growers and financiers ✓ Phase 3 – Replicate and scale for commercial operations DEVELOPMENT PLANNetZero Greens Real Time Optimization

PATHWAY TO GROWTH Tecochill Hybrid Drive Air-Cooled Chiller to be launched at AHR in Feb 2023. This addresses a gap in our Tecochill offering as air cooled chillers are typically sold in larger volumes compared to water cooled chillers in our size range. Focus on Clean Cooling applications where there is a simultaneous cooling and dehumidification load. Continue to increase market share in regional cannabis markets including New England, Mid-Atlantic and Florida with a goal to have a minimum of 30% market share per state in facilities > 10,000 sq feet. Clean Microgrids using CHP in combination with other energy technologies including solar and battery 15 New Business Unit Established Focused on Controlled Environment Agriculture (CEA) markets

Q&A Company Information Tecogen, Inc 45 First Ave Waltham, MA 02451 www.Tecogen.com Contact information Benjamin Locke, CEO 781.466.6402 Benjamin.Locke@Tecogen.com 16

XML

Cover	Aug. 11, 2022
Cover [Abstract]
Document Type	8-K
Document Period End Date	Nov. 10, 2022
Entity Registrant Name	TECOGEN INC.
Entity Incorporation, State or Country Code	DE
Entity File Number	001-36103
Entity Tax Identification Number	04-3536131
Entity Address, Address Line One	45 First Avenue
Entity Address, State or Province	MA
Entity Address, City or Town	Waltham
Entity Address, Postal Zip Code	02451
City Area Code	781
Local Phone Number	466-6400
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Entity Emerging Growth Company	false
Amendment Flag	false
Entity Central Index Key	0001537435