amrc-20240930

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 September 30, 2024


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

For the transition period from ___________ to ___________.

Commission File Number: 001-34811

Ameresco, Inc.

(Exact name of registrant as specified in its charter)


Delaware						04-3512838
(State or Other Jurisdiction of Incorporation or Organization)						(I.R.S. Employer Identification No.)
111 Speen Street, Suite 410 Framingham, Massachusetts						01701
(Address of Principal Executive Offices)						(Zip Code)

(508) 661-2200

(Registrant’s Telephone Number, Including Area Code)

N/A

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

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


Title of Each Class	Trading Symbol	Name of exchange on which registered
Class A Common Stock, par value $0.0001 per share	AMRC	New York Stock Exchange

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

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

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


Large accelerated filer ☑	Accelerated Filer o	Non-accelerated filer o	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. o

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.


Class			Shares outstanding as of November 4, 2024
Class A Common Stock, $0.0001 par value per share			34,442,751
Class B Common Stock, $0.0001 par value per share			18,000,000

TABLE OF CONTENTS


						Page
PART I - FINANCIAL INFORMATION
Item 1. Condensed Consolidated Financial Statements
Condensed Consolidated Balance Sheets at September 30, 2024 (Unaudited) and December 31, 2023						1
Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2024 and 2023 (Unaudited)						3
Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2024 and 2023 (Unaudited)						4
Condensed Consolidated Statements of Changes in Redeemable Non-Controlling Interests and Stockholders’ Equity for the three and nine months ended September 30, 2024 and 2023 (Unaudited)						5
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2024 and 2023 (Unaudited)						7
Notes to Condensed Consolidated Financial Statements (Unaudited)						9
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations						32
Item 3. Quantitative and Qualitative Disclosures About Market Risk						43
Item 4. Controls and Procedures						43

PART II - OTHER INFORMATION
Item 1. Legal Proceedings						44
Item 1A. Risk Factors						44
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds						44
Item 5. Other Information						44
Item 6. Exhibits						45
Signatures						46

Table of Contents

Part I - Financial Information

Item 1. Condensed Consolidated Financial Statements

AMERESCO, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts)


	September 30, 2024		December 31, 2023
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents (1)	$	113,502	$	79,271
Restricted cash (1)	71,868		62,311
Accounts receivable, net of allowance of $2,064 and $903, respectively (1)	230,298		153,362
Accounts receivable retainage, net	43,466		33,826
Costs and estimated earnings in excess of billings (1)	572,804		636,163
Inventory, net	11,973		13,637
Prepaid expenses and other current assets (1)	155,353		123,391
Income taxes receivable	4,468		5,775
Project development costs, net	20,819		20,735
Total current assets (1)	1,224,551		1,128,471
Federal ESPC receivable	565,964		609,265
Property and equipment, net (1)	16,777		17,395
Energy assets, net (1)	1,882,588		1,689,424
Deferred income tax assets, net	36,607		26,411
Goodwill, net	75,922		75,587
Intangible assets, net	5,387		6,808
Operating lease assets (1)	77,609		58,586
Restricted cash, non-current portion (1)	19,021		12,094
Other assets (1)	77,812		89,735
Total assets (1)	$	3,982,238	$	3,713,776
LIABILITIES, REDEEMABLE NON-CONTROLLING INTERESTS, AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current portions of long-term debt and financing lease liabilities, net (1)	$	343,247	$	322,247
Accounts payable (1)	399,244		402,752
Accrued expenses and other current liabilities (1)	101,259		108,831
Current portions of operating lease liabilities (1)	12,242		13,569
Billings in excess of cost and estimated earnings	108,020		52,903
Income taxes payable	655		1,169
Total current liabilities (1)	964,667		901,471
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs (1)	1,317,517		1,170,075
Federal ESPC liabilities	520,497		533,054
Deferred income tax liabilities, net	2,601		4,479
Deferred grant income	6,806		6,974
Long-term operating lease liabilities, net of current portion (1)	58,007		42,258
Other liabilities (1)	102,645		82,714
Commitments and contingencies (Note 10)
Redeemable non-controlling interests, net	42,761		46,865

(1) Includes restricted assets of consolidated variable interest entities (“VIEs”) at September 30, 2024 and December 31, 2023 of $214,969 and $312,701, respectively. Includes liabilities of consolidated VIEs at September 30, 2024 and December 31, 2023 of $47,259 and $199,063, respectively. See Note 13.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts) (Continued)


	September 30, 2024		December 31, 2023
	(Unaudited)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 5,000,000 shares authorized, no shares issued and outstanding at September 30, 2024 and December 31, 2023	$	—	$	—
Class A common stock, $0.0001 par value, 500,000,000 shares authorized, 36,544,586 shares issued and 34,442,751 shares outstanding at September 30, 2024, 36,378,990 shares issued and 34,277,195 shares outstanding at December 31, 2023	3		3
Class B common stock, $0.0001 par value, 144,000,000 shares authorized, 18,000,000 shares issued and outstanding at September 30, 2024 and December 31, 2023	2		2
Additional paid-in capital	336,425		320,892
Retained earnings	615,503		595,911
Accumulated other comprehensive loss, net	(2,803)		(3,045)
Treasury stock, at cost, 2,101,835 shares at September 30, 2024 and 2,101,795 shares at December 31, 2023	(11,788)		(11,788)
Stockholders’ equity before non-controlling interest	937,342		901,975
Non-controlling interests	29,395		23,911
Total stockholders’ equity	966,737		925,886
Total liabilities, redeemable non-controlling interests, and stockholders’ equity	$	3,982,238	$	3,713,776

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts) (Unaudited)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Revenues	$	500,873	$	335,149	$	1,237,261	$	933,265
Cost of revenues	423,734		271,493		1,047,960		761,012
Gross profit	77,139		63,656		189,301		172,253
Earnings from unconsolidated entities	159		526		724		1,356
Selling, general and administrative expenses	42,139		42,752		125,920		125,466
Operating income	35,159		21,430		64,105		48,143
Other expenses, net	21,469		10,642		51,399		27,883
Income before income taxes	13,690		10,788		12,706		20,260
Income tax benefit	(3,324)		(10,054)		(3,324)		(10,552)
Net income	17,014		20,842		16,030		30,812
Net loss (income) attributable to non-controlling interests and redeemable non-controlling interests	585		423		3,642		(2,077)
Net income attributable to common shareholders	$	17,599	$	21,265	$	19,672	$	28,735

Net income attributable to common shareholders
Basic	$	0.34	$	0.41	$	0.37	$	0.55
Diluted	$	0.33	$	0.40	$	0.37	$	0.54
Weighted average common shares outstanding:
Basic	52,413		52,209		52,352		52,104
Diluted	53,243		53,300		53,098		53,259

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands) (Unaudited)


	Three Months Ended September 30,
	2024		2023
Net income	$	17,014	$	20,842
Other comprehensive income (loss):
Unrealized (loss) gain from interest rate hedges, net of tax	(1,060)		764
Foreign currency translation adjustments	2,003		(1,651)
Total other comprehensive income (loss)	943		(887)
Comprehensive income	17,957		19,955
Comprehensive loss attributable to non-controlling interests and redeemable non-controlling interests:
Net loss	585		423
Foreign currency translation adjustments	54		36
Comprehensive loss attributable to non-controlling interests and redeemable non-controlling interests	639		459
Comprehensive income attributable to common shareholders	$	18,596	$	20,414

	Nine Months Ended September 30,
	2024		2023
Net income	16,030		30,812
Other comprehensive income:
Unrealized (loss) gain from interest rate hedges, net of tax	(446)		716
Foreign currency translation adjustments	652		(425)
Total other comprehensive income	206		291
Comprehensive income	16,236		31,103
Comprehensive loss (income) attributable to non-controlling interests and redeemable non-controlling interests:
Net loss (income)	3,642		(2,077)
Foreign currency translation adjustments	36		26
Comprehensive loss (income) attributable to non-controlling interests and redeemable non-controlling interests	3,678		(2,051)
Comprehensive income attributable to common shareholders	$	19,914	$	29,052

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE NON-CONTROLLING INTERESTS AND STOCKHOLDERS’ EQUITY

For the Three Months Ended September 30, 2024 and 2023

(In thousands, except share amounts) (Unaudited)


	Redeemable Non-controlling Interests (“RNCI”)		Class A Common Stock			Class B Common Stock			Additional Paid-in Capital				Accumulated Other Comprehensive Loss		Treasury Stock			Non-controlling Interests (“NCI”)		Total Stockholders’ Equity
			Shares	Amount		Shares	Amount				Retained Earnings				Shares	Amount
Balance, June 30, 2023	$	47,994	34,200,610	$	3	18,000,000	$	2	$	317,228	$	540,964	$	(2,884)	2,101,795	$	(11,788)	$	30,458	$	873,983
Exercise of stock options	—		22,150	—		—	—		274		—		—		—	—		—		274
Stock-based compensation expense	—		—	—		—	—		4,319		—		—		—	—		—		4,319

Restricted stock units released	—		11,786	—		—	—		—		—		—		—	—		—		—
Unrealized gain from interest rate hedges, net	—		—	—		—	—		—		—		764		—	—		—		764
Foreign currency translation adjustment	—		—	—		—	—		—		—		(1,615)		—	—		(36)		(1,651)

Distributions to RNCI	(159)		—	—		—	—		—		—		—		—	—		—		—
Accretion of tax equity financing fees	26		—	—		—	—		—		(26)		—		—	—		—		(26)

Contributions from NCI	—		—	—		—	—		—		—		—		—	—		35		35

Net (loss) income	(586)		—	—		—	—		—		21,265		—		—	—		163		21,428
Balance, September 30, 2023	$	47,275	34,234,546	$	3	18,000,000	$	2	$	321,821	$	562,203	$	(3,735)	2,101,795	$	(11,788)	$	30,620	$	899,126

Balance, June 30, 2024	$	43,777	34,402,515	$	3	18,000,000	$	2	$	332,356	$	597,930	$	(3,800)	2,101,795	$	(11,788)	$	26,489	$	941,192

Exercise of stock options & share sales to cover taxes, net	—		7,500	—		—	—		405		—		—		—	—		—		405
Stock-based compensation expense	—		—	—		—	—		3,664		—		—		—	—		—		3,664

Restricted stock units released	—		32,736	—		—	—		—		—		—		40	—		—		—
Unrealized loss from interest rate hedges, net	—		—	—		—	—		—		—		(1,060)		—	—		—		(1,060)
Foreign currency translation adjustment	—		—	—		—	—		—		—		2,057		—	—		(54)		2,003

Distributions to RNCI	(130)		—	—		—	—		—		—		—		—	—		—		—
Accretion of tax equity financing fees	26		—	—		—	—		—		(26)		—		—	—		—		(26)

Contributions from NCI	—		—	—		—	—		—		—		—		—	—		2,997		2,997
Distributions to NCI	—		—	—		—	—		—		—		—		—	—		(364)		(364)

Net (loss) income	(912)		—	—		—	—		—		17,599		—		—	—		327		17,926
Balance, September 30, 2024	$	42,761	34,442,751	$	3	18,000,000	$	2	$	336,425	$	615,503	$	(2,803)	2,101,835	$	(11,788)	$	29,395	$	966,737

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE NON-CONTROLLING INTERESTS AND STOCKHOLDERS’ EQUITY

For the Nine Months Ended September 30, 2024 and 2023

(In thousands, except share amounts) (Unaudited)


	Redeemable Non-controlling Interests		Class A Common Stock			Class B Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock			Non-controlling Interests		Total Stockholders’ Equity
			Shares	Amount		Shares	Amount								Shares	Amount
Balance, December 31, 2022	$	46,623	33,948,362	$	3	18,000,000	$	2	$	306,314	$	533,549	$	(4,051)	2,101,795	$	(11,788)	$	49,002	$	873,031
Exercise of stock options	—		238,750	—		—	—		2,367		—		—		—	—		—		2,367
Stock-based compensation expense	—		—	—		—	—		12,318		—		—		—	—		—		12,318
Employee stock purchase plan	—		24,833	—		—	—		1,017		—		—		—	—		—		1,017
Restricted stock units released	—		22,601	—		—	—		—		—		—		—	—		—		—
Unrealized gain from interest rate hedges, net	—		—	—		—	—		—		—		716		—	—		—		716
Foreign currency translation adjustment	—		—	—		—	—		—		—		(400)		—	—		(25)		(425)

Distributions to RNCI	(494)		—	—		—	—		—		—		—		—	—		—		—
Accretion of tax equity financing fees	81		—	—		—	—		—		(81)		—		—	—		—		(81)
Investment fund call option exercise	195		—	—		—	—		(195)		—		—		—	—		—		(195)
Contributions from NCI	—		—	—		—	—		—		—		—		—	—		957		957
Distributions to NCI	—		—	—		—	—		—		—		—		—	—		(20,521)		(20,521)
Net income	870		—	—		—	—		—		28,735		—		—	—		1,207		29,942
Balance, September 30, 2023	$	47,275	34,234,546	$	3	18,000,000	$	2	$	321,821	$	562,203	$	(3,735)	2,101,795	$	(11,788)	$	30,620	$	899,126

Balance, December 31, 2023	$	46,865	34,277,195	$	3	18,000,000	$	2	$	320,892	$	595,911	$	(3,045)	2,101,795	$	(11,788)	$	23,911	$	925,886

Exercise of stock options & share sales to cover taxes, net	—		70,089	—		—	—		909		—		—		—	—		—		909
Stock-based compensation expense	—		—	—		—	—		10,368		—		—		—	—		—		10,368
Employee stock purchase plan	—		32,841	—		—	—		990		—		—		—	—		—		990
Restricted stock units released	—		62,626	—		—	—		—		—		—		40	—		—		—
Unrealized loss from interest rate hedges, net	—		—	—		—	—		—		—		(446)		—	—		—		(446)
Foreign currency translation adjustment	—		—	—		—	—		—		—		688		—	—		(36)		652

Distributions to RNCI	(418)		—	—		—	—		—		—		—		—	—		—		—
Accretion of tax equity financing fees	80		—	—		—	—		—		(80)		—		—	—		—		(80)

Contributions from NCI	—		—	—		—	—		3,040		—		—		—	—		30,749		33,789
Distributions to NCI	—		—	—		—	—		—		—		—		—	—		(1,367)		(1,367)
Purchase of shares from NCI	—		—	—		—	—		226		—		—		—	—		(23,986)		(23,760)
Net (loss) income	(3,766)		—	—		—	—		—		19,672		—		—	—		124		19,796
Balance, September 30, 2024	$	42,761	34,442,751	$	3	18,000,000	$	2	$	336,425	$	615,503	$	(2,803)	2,101,835	$	(11,788)	$	29,395	$	966,737

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands) (Unaudited)


	Nine Months Ended September 30,
	2024		2023
Cash flows from operating activities:
Net income	$	16,030	$	30,812
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation of energy assets, net	57,352		42,847
Depreciation of property and equipment	3,699		2,849
Increase in contingent consideration	87		705
Accretion of ARO liabilities	243		194
Amortization of debt discount and debt issuance costs	3,764		3,407
Amortization of intangible assets	1,615		1,681
Provision for credit losses	1,292		637
Loss on disposal of assets	515		18

Non-cash project revenue related to in-kind leases	(2,971)		—
Earnings from unconsolidated entities	(724)		(1,356)
Net gain from derivatives	(267)		(3,306)

Stock-based compensation expense	10,368		12,318
Deferred income taxes, net	(3,914)		(13,089)

Unrealized foreign exchange (gain) loss	(898)		1,148
Changes in operating assets and liabilities:
Accounts receivable	(64,045)		58,135
Accounts receivable retainage	(9,753)		4,589
Federal ESPC receivable	(110,841)		(143,647)
Inventory, net	1,664		570
Costs and estimated earnings in excess of billings	126,694		5,260
Prepaid expenses and other current assets	15,112		(10,925)
Income taxes receivable, net	798		590
Project development costs	(4,456)		(4,638)
Other assets	(4,664)		(2,080)
Accounts payable, accrued expenses and other current liabilities	13,511		(38,444)
Billings in excess of cost and estimated earnings	42,215		10,104
Other liabilities	6,796		1,200
Cash flows from operating activities	99,222		(40,421)
Cash flows from investing activities:
Purchases of property and equipment	(3,053)		(4,597)
Capital investments in energy assets	(341,794)		(445,540)
Capital investments in major maintenance of energy assets	(13,597)		(8,024)
Asset acquisition, net of cash acquired	—		6,206
Net proceeds from equity method investments	13,091		—
Contributions to equity method investments	(10,442)		(3,489)
Grant award received on energy asset	403		—
Acquisitions, net of cash received	—		(9,183)
Loans to joint venture investments	—		(566)
Cash flows from investing activities	(355,392)		(465,193)




See notes to condensed consolidated financial statements.

Table of Contents


AMERESCO, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands) (Unaudited) (Continued)

	Nine Months Ended September 30,
	2024		2023
Cash flows from financing activities:

Payments of debt discount and debt issuance costs	$	(10,114)	$	(8,635)
Proceeds from exercises of options and ESPP	1,899		3,384

Payments on senior secured revolving credit facility, net	(33,400)		(115,000)
Proceeds from long-term debt financings	663,598		728,600
Proceeds from Federal ESPC projects	129,399		107,303
Net proceeds from energy asset receivable financing arrangements	5,216		12,514

Contributions from non-controlling interests	33,789		499
Distributions to non-controlling interest	(1,367)		(20,521)
Distributions to redeemable non-controlling interests, net	(418)		(494)
Payment on seller's promissory note	(41,941)		(12,500)
Payments on debt and financing leases	(441,603)		(162,749)
Cash flows from financing activities	305,058		532,401
Effect of exchange rate changes on cash	1,827		(980)
Net increase in cash, cash equivalents, and restricted cash	50,715		25,807
Cash, cash equivalents, and restricted cash, beginning of period	153,676		149,888
Cash, cash equivalents, and restricted cash, end of period	$	204,391	$	175,695

Supplemental disclosures of cash flow information:
Cash paid for interest	$	80,172	$	51,180
Cash paid for income taxes	$	1,946	$	2,719
Non-cash Federal ESPC settlement	$	143,936	$	99,164
Accrued purchases of energy assets	$	53,696	$	89,820
Non-cash contributions from non-controlling interest	$	—	$	458
Non-cash financing for energy asset project acquisition	$	32,500	$	82,964

See notes to condensed consolidated financial statements.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited)

1. BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements of Ameresco, Inc. (including its subsidiaries, the “Company,” “Ameresco,” “we,” “our,” or “us”) are unaudited, according to certain rules and regulations of the Securities and Exchange Commission, and include, in our opinion, normal recurring adjustments necessary for a fair presentation in conformity with accounting principles generally accepted in the United States (“GAAP”) of the results for the periods indicated.

The results of operations for the three and nine months ended September 30, 2024 are not necessarily indicative of results which may be expected for the full year. The December 31, 2023 consolidated balance sheet data was derived from audited financial statements, but certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. The interim condensed consolidated financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2023, included in our annual report on Form 10-K (“2023 Form 10-K”) filed with the Securities and Exchange Commission on February 29, 2024 as amended on March 11, 2024.

Reclassification and Rounding

Certain prior period amounts were reclassified to conform to the presentation in the current period. We round amounts in the condensed consolidated financial statements to thousands and calculate all percentages and per-share data from the underlying whole-dollar amounts. Thus, certain amounts may not foot, crossfoot, or recalculate based on reported numbers due to rounding.

Significant Risks and Uncertainties

Global factors have continued to result in global supply chain disruptions and inflationary pressures.

We have considered the impact of general global economic conditions on the assumptions and estimates used, which may change in response to this evolving situation. Results of future operations and liquidity could be adversely impacted by a number of factors including supply chain disruptions, varying levels of inflation, payments of outstanding receivable amounts beyond normal payment terms, workforce disruptions, and uncertain demand. As of the date of issuance of these condensed consolidated financial statements, we cannot reasonably estimate the extent to which macroeconomic conditions may impact our financial condition, liquidity, or results of operations in the foreseeable future. The ultimate impact of the pandemic and general global economic conditions on our business is highly uncertain and will depend on future developments, and such impacts could exist for an extended period of time, even after the pandemic subsides.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Our accounting policies are set forth in Note 2 to the consolidated financial statements contained in our 2023 Form 10-K. We have included certain updates to those policies below.

Accounts Receivable and Allowance for Credit Losses

Changes in the allowance for credit losses are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Allowance for credit losses, beginning of period	$	2,060	$	903	$	903	$	911
Charges to costs and expenses, net	81		58		1,292		637
Account write-offs and other	(77)		(64)		(131)		(651)
Allowance for credit losses, end of period	$	2,064	$	897	$	2,064	$	897

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist primarily of other receivables, deferred project costs, and other short-term prepaid expenditures that will be expensed within one year.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Prepaid expenses and other current assets comprised of the following:


	September 30, 2024		December 31, 2023
Other receivables	$	14,462	$	74,454
Deferred project costs	128,426		38,240
Prepaid expenses	12,465		10,697
Prepaid expenses and other current assets	$	155,353	$	123,391

Recent Accounting Pronouncements

Business Combinations— Joint Venture Formations

In August 2023, the FASB issued ASU 2023-05, Business Combinations— Joint Venture Formations (Subtopic 805-60) Recognition and Initial Measurement, which addresses the accounting for contributions made to a joint venture, upon formation, in a joint venture’s separate financial statements. ASU 2023-05 is effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. We are currently evaluating the impact that adopting this new accounting standard would have on our condensed consolidated financial statements.

Disclosure Improvements - Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative

In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements - Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative, which updates the disclosure or presentation requirements for a variety of topics in the codification. ASU 2023-06 is effective from the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K, with early adoption prohibited. We will monitor the removal of the requirements from the current regulations and adopt the related amendments, but we do not anticipate this new guidance will have a material impact on our condensed consolidated financial statements as we are currently subject to SEC requirements.

Segment Reporting (Topic 820) - Improvements to Reportable Segment Disclosures

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 820) - Improvements to Reportable Segment Disclosures, which improves reportable segment disclosures by requiring enhanced disclosures for significant segment expenses and other segment items. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. We are currently evaluating the impact that adopting this new accounting standard would have on our condensed consolidated financial statements.

Income Taxes (Topic 740) - Improvements to Income Tax Disclosures

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, to enhance the income tax disclosures, including disaggregation of information in the rate reconciliation table and disaggregated information related to income taxes paid. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. We are currently evaluating the impact that adopting this new accounting standard would have on our condensed consolidated financial statements.

Codification Improvements—Amendments to Remove References to the Concepts Statements

In March 2024, the FASB issued ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements, to remove references to various FASB Concepts Statements based on suggestions received from stakeholders on the Accounting Standards Codification and other incremental improvements to GAAP. ASU 2024-02 is effective for fiscal years beginning after December 15, 2024. We are currently evaluating the impact that adopting this new accounting standard would have on our condensed consolidated financial statements.

Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, to improve the disclosures by requiring more detailed information about the types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, SG&A, and research

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

and development). ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. We are currently evaluating the impact that adopting this new accounting standard would have on our condensed consolidated financial statements.

3. REVENUE FROM CONTRACTS WITH CUSTOMERS

Disaggregation of Revenue

The following table presents our revenue disaggregated by line of business and reportable segment for the three months ended September 30, 2024:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total
Project revenue	$	258,977	$	66,162	$	49,943	$	10,295	$	—	$	385,377
O&M revenue	10,284		15,817		480		1,844		—		28,425
Energy assets	20,444		7,096		197		31,393		—		59,130

Other	1,906		38		1,993		5		23,999		27,941
Total revenues	$	291,611	$	89,113	$	52,613	$	43,537	$	23,999	$	500,873

The following table presents our revenue disaggregated by line of business and reportable segment for the three months ended September 30, 2023:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total
Project revenue	$	133,169	$	71,779	$	37,736	$	—	$	—	$	242,684
O&M revenue	6,369		13,838		492		2,073		—		22,772
Energy assets	17,185		1,495		326		25,227		26		44,259

Other	977		229		1,946		19		22,263		25,434
Total revenues	$	157,700	$	87,341	$	40,500	$	27,319	$	22,289	$	335,149

The following table presents our revenue disaggregated by line of business and reportable segment for the nine months ended September 30, 2024:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total
Project revenue	$	553,930	$	177,721	$	161,431	$	27,342	$	—	$	920,424
O&M revenue	25,728		45,723		2,122		6,357		—		79,930
Energy assets	53,944		12,749		557		88,421		29		155,700

Other	4,425		547		5,684		128		70,423		81,207
Total revenues	$	638,027	$	236,740	$	169,794	$	122,248	$	70,452	$	1,237,261

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

The following table presents our revenue disaggregated by line of business and reportable segment for the nine months ended September 30, 2023:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total
Project revenue	$	376,984	$	181,232	$	95,335	$	—	$	1,250	$	654,801
O&M revenue	18,270		40,439		1,285		8,054		—		68,048
Energy assets	50,983		4,735		1,297		77,901		121		135,037

Other	3,776		510		5,204		19		65,870		75,379
Total revenues	$	450,013	$	226,916	$	103,121	$	85,974	$	67,241	$	933,265

The following table presents information related to our revenue recognized over time:


	Three Months Ended September 30,		Nine Months Ended September 30,
	2024	2023	2024	2023
Percentage of revenue recognized over time	97%	95%	96%	94%

The remainder of our revenue is for products and services transferred at a point in time, at which point revenue is recognized.

We attribute revenues to customers based on the location of the customer. The following table presents information related to our revenues by geographic area:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
United States	$	431,918	$	279,651	$	1,020,517	$	783,692
Canada	16,337		15,535		46,933		46,335
Europe	52,618		39,963		169,811		103,238
Total revenues	$	500,873	$	335,149	$	1,237,261	$	933,265

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Contract Balances

The following tables provide information about receivables, contract assets and contract liabilities from contracts with customers:


	September 30, 2024		December 31, 2023
Accounts receivable, net	$	230,298	$	153,362
Accounts receivable retainage, net	43,466		33,826
Contract Assets:
Costs and estimated earnings in excess of billings	$	572,804	$	636,163
Contract Liabilities:
Billings in excess of cost and estimated earnings	$	108,020	$	52,903
Billings in excess of cost and estimated earnings, non-current (1)	20,808		18,393
Total contract liabilities	$	128,828	$	71,296


	September 30, 2023		December 31, 2022
Accounts receivable, net	$	133,070	$	174,009
Accounts receivable retainage, net	33,459		38,057
Contract Assets:
Costs and estimated earnings in excess of billings	$	591,378	$	576,363
Contract Liabilities:
Billings in excess of cost and estimated earnings	$	36,880	$	34,796
Billings in excess of cost and estimated earnings, non-current (1)	15,622		7,617
Total contract liabilities	$	52,502	$	42,413

(1) Performance obligations that are expected to be completed beyond the next twelve months and are included in other liabilities in the condensed consolidated balance sheets.

The decrease in contract assets for the nine months ended September 30, 2024 was primarily due to billings of $921,597, offset by revenue recognized of $807,913. Contract assets also decreased due to reclassifications, primarily from contract liabilities as a result of timing of customer payments. The increase in contract liabilities was primarily driven by the receipt of advance payments from customers, and related billings, as well as reclassifications from contract assets as a result of timing of customer payments. The advance payments and reclassifications exceeded the recognition of revenue as performance obligations were satisfied. For the nine months ended September 30, 2024, we recognized revenue of $284,842 and billed $271,173 to customers that had balances which were included in contract liabilities at December 31, 2023.

The increase in contract assets for the nine months ended September 30, 2023 was primarily due to billings of $634,340 offset by revenue recognized of $631,136. Contract assets are also affected by reclassifications, primarily from contract liabilities as a result of timing of customer payments. The increase in contract liabilities was primarily driven by the receipt of advance payments from customers, and related billings, as well as reclassifications from contract assets as a result of timing of customer payments. The advance payments and reclassifications exceeded the recognition of revenue as performance obligations were satisfied. For the nine months ended September 30, 2023, we recognized revenue of $130,262 and billed $135,158 to customers that had balances which were included in the beginning balance of contract liabilities.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Performance Obligations

Our remaining performance obligations (“backlog”) represent the unrecognized revenue value of our contract commitments. At September 30, 2024, we had contracted backlog of $3,273,978 of which approximately 33% is anticipated to be recognized as revenue in the next twelve months. The remaining performance obligations primarily relate to the energy efficiency and renewable energy construction projects, including long-term operations and maintenance (“O&M”) services related to these projects. The long-term services have varying initial contract terms, up to 25 years.

Deferred Project Costs

Deferred project costs include costs incurred on active projects which will be reclassified either to contract assets or energy assets, as applicable, once a change order or other project resolution is finalized.

Project Development Costs

Project development costs of $4,546 and $3,059 were recognized in our condensed consolidated statements of income on projects that converted to customer contracts during the three months ended September 30, 2024 and 2023, respectively. Project development costs of $10,830 and $9,276 were recognized in the condensed consolidated statements of income on projects that converted to customer contracts during the nine months ended September 30, 2024 and 2023, respectively.

No impairment charges in connection with our project development costs were recorded during the three or nine months ended September 30, 2024 and 2023.

4. BUSINESS ACQUISITIONS AND RELATED TRANSACTIONS

We account for acquisitions using the acquisition method in accordance with ASC 805, Business Combinations. The purchase price for each acquisition is allocated to the assets based on their estimated fair values at the date of acquisition. The excess purchase price over the estimated fair value of the net assets acquired, which is calculated using level 3 inputs per the fair value hierarchy as defined in Note 11, is recorded as goodwill. Intangible assets, if identified, are also recorded. See Note 5 for additional information.

Enerqos Energy Solutions S.r.l. (“Enerqos”)

On February 24, 2023, we signed a definitive purchase and sale agreement to acquire Enerqos, a renewable energy and energy efficiency company headquartered in Milan, Italy. The acquisition closed on March 30, 2023 and the total purchase consideration was $13,445, of which $9,535 has been paid. There is no contingent consideration related to this acquisition. Cash acquired was $353, debt assumed was $3,951, and a deferred tax liability, net of $931 was recorded. In accordance with the SEC’s Regulation S-X and GAAP, we evaluated and determined that Enerqos is not deemed to be a significant subsidiary, therefore, we are not presenting the pro-forma effects of this acquisition on our operations.

The estimated goodwill of $6,855 from the Enerqos acquisition consists largely of expected benefits, including the combined entities experience and the acquired workforce. This goodwill is not deductible for income tax purposes. The estimated fair value of tangible and intangible assets acquired, and liabilities assumed are based on management's estimates and assumptions that are preliminary and subject to adjustments. Any adjustments made beyond the measurement period will be included in our condensed consolidated statements of income.

The results of the acquisition since the date of the acquisition have been included in our operations as presented in the accompanying condensed consolidated statements of income, condensed consolidated statements of comprehensive income and condensed consolidated statements of cash flows.

The following table sets forth the revenue and net (loss) income for Enerqos:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Revenue	$	6,891	$	18,300	$	19,924	$	31,341
Net (loss) income	(887)		637		$	(2,616)	$	819

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

A summary of the cumulative consideration paid and allocation of the purchase price for the Enerqos acquisition are presented in the table below:


	Preliminary March 31, 2023		Measurement Period Adjustment		As Adjusted December 31, 2023
Cash	$	9,535	$	—	$	9,535
Long-term debt assumed, net of current portions	3,951		—		3,951
FX adjustment	(41)		—		(41)
Fair value of consideration transferred	$	13,445	$	—	$	13,445

Cash and cash equivalents	$	190	$	—	$	190
Accounts receivable	6,230		—		6,230
Costs and estimated earnings in excess of billings	8,985		—		8,985
Prepaid expenses and other current assets	16,504		—		16,504
Project development costs	5,140		—		5,140
Property and equipment and energy assets	1,234		—		1,234
Intangible assets	4,438		—		4,438
Long-term restricted cash	163		—		163
Accounts payable	(15,480)		—		(15,480)
Accrued expenses and other current liabilities	(4,510)		165		(4,345)
Current portions of long-term debt	(15,165)		—		(15,165)
Deferred income tax liabilities, net	(931)		—		(931)
Other liabilities	(208)		—		(208)
Recognized identifiable assets acquired and liabilities assumed	$	6,590	$	165	$	6,755
Goodwill	$	6,855	$	(165)	$	6,690

5. GOODWILL AND INTANGIBLE ASSETS, NET

Due to the change in the structure of our internal organization, a portion of our goodwill was allocated to two new reporting units based on their relative fair values as of January 1, 2024. See Note 3 for additional information about the organizational changes. The changes in the carrying value of goodwill balances by reportable segment were as follows:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		Other		Total
Carrying Value of Goodwill
Balance, December 31, 2023	$	40,681	$	3,981	$	13,034	$	—	$	17,891	$	75,587

Fair value allocation	(1,474)		—		—		—		1,474		—
Currency effects	(64)		—		399		—		—		335
Balance, September 30, 2024	$	39,143	$	3,981	$	13,433	$	—	$	19,365	$	75,922

Definite-lived intangible assets, net consisted of the following:


	As of September 30, 2024		As of December 31, 2023
Gross carrying amount	$	37,694	37,147
Less - accumulated amortization	(32,307)		(30,339)
Intangible assets, net	$	5,387	$	6,808

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

The table below sets forth amortization expense:


		Three Months Ended September 30,				Nine Months Ended September 30,
Asset type	Location	2024		2023		2024		2023

All other intangible assets	Selling, general and administrative expenses	$	539	$	690	$	1,615	$	1,681

6. ENERGY ASSETS, NET

Energy assets, net consisted of the following:


	September 30, 2024		December 31, 2023
Energy assets (1)	$	2,304,905	$	2,054,145
Less - accumulated depreciation and amortization	(422,317)		(364,721)
Energy assets, net	$	1,882,588	$	1,689,424

(1) Includes financing lease assets (see Note 7), capitalized interest and asset retirement obligations (“ARO”) assets (see tables below). Also includes the energy asset projects acquired in January 2024 and excludes energy assets held for sale. See section below and Note 19 for additional information.

August 2023 Purchase and Sale Agreement

On August 4, 2023, we entered into a purchase and sale agreement to acquire an energy asset project and to acquire 100% of the stock of Bright Canyon Energy Corporation (“BCE”) in a two-phased transaction. Phase 1, the purchase of the energy asset project, closed on August 4, 2023 and did not constitute a business in accordance with ASC 805-50, Business Combinations.

The purchase price for phase 1 was $87,964, of which $5,000 was paid in cash, $46,694 was financed through a seller’s note, and we assumed a construction loan on the energy asset project for $36,270. We also acquired cash of $11,206. During the year ended December 31, 2023, we paid $18,400 in principal on the sellers note. In January 2024, the purchase price was increased by $1,147 and we paid off the seller’s note in the amount of $29,441. We also assumed a land lease for the energy asset project.

On December 28, 2023, we executed an amended and restated purchase and sale agreement, which primarily revised the timing of payments on phase 2. In the second phase, which closed on January 12, 2024, we acquired BCE, including its interest in a consolidated joint venture and its interests in project subsidiaries developing or with rights to develop solar, battery, and microgrid assets for an adjusted purchase price of $48,035, of which $9,839 was paid in cash and $32,500 was financed through a seller’s note. The remaining balance due of $5,696 was paid during the nine months ended September 30, 2024. In September 2024, we paid a portion of the seller’s note in the amount of $12,500. We also assumed four land leases for the energy asset projects.

See Note 8 for additional information about the BCE-related loans, Note 7 for information on the leases and Note 10 for potential additional commitments.

Phase 2, the purchase of the energy asset projects did not constitute a business in accordance with ASC 805-50, Business Combinations.

Transfer of Investment Tax Credits

On June 27, 2024 we sold investment tax credits (“ITC”) on four energy assets to a third party at a fair value of $23,667 which was received during the three months ended June 30, 2024. We also received a deposit of $239 for the sale of ITC on four additional energy assets at a total fair value of $23,867. During the quarter ended September 30, 2024 we sold the ITC on the remaining four energy assets and received proceeds of $23,628. The benefit from the sale of the ITC will be recognized in profit or loss as a reduction to depreciation expense over the life of the energy assets.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Depreciation and Amortization Expense

The following table sets forth our depreciation and amortization expense on energy assets, net of deferred grant and ITC amortization:


	Three Months Ended September 30,				Nine Months Ended September 30,
Location	2024		2023		2024		2023
Cost of revenues (2)	$	21,667	$	15,122	$	57,352	$	42,847

(2) Includes depreciation and amortization on financing lease assets (see Note 7).

Capitalized Interest

The following table presents the interest costs relating to construction financing during the period of construction, which were capitalized as part of energy assets, net:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Capitalized interest	$	12,001	$	12,824	$	42,451	$	28,842

The following tables sets forth information related to our ARO assets and ARO liabilities:


	Location	September 30, 2024		December 31, 2023
ARO assets, net	Energy assets, net	$	4,495	$	4,800


ARO liabilities, non-current	Other liabilities	$	6,071	$	5,960


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Depreciation expense of ARO assets	$	65	$	53	$	175	$	161
Accretion expense of ARO liabilities	$	89	$	64	$	243	$	194

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

7. LEASES

The table below sets forth supplemental condensed consolidated balance sheet information related to our leases:


	September 30, 2024			December 31, 2023
Operating Leases:
Operating lease assets	$	77,609		$	58,586

Current portions of operating lease liabilities	$	12,242		$	13,569
Long-term portions of operating lease liabilities	58,007			42,258
Total operating lease liabilities	$	70,249		$	55,827
Weighted-average remaining lease term	19 years			18 years
Weighted-average discount rate	6.6		%	6.6		%

Financing Leases:
Energy assets	$	25,684		$	27,262

Current portions of financing lease liabilities	$	766		$	871
Long-term financing lease liabilities, net of current portion, unamortized discount and debt issuance costs	12,655			13,057
Total financing lease liabilities	$	13,421		$	13,928
Weighted-average remaining lease term	12 years			13 years
Weighted-average discount rate	12.02		%	12.05		%

The costs related to our leases were as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Operating Leases:
Operating lease costs	$	3,358	$	2,692	$	9,590	$	7,128

Financing Leases:
Amortization expense	526		526		1,578		1,577
Interest on lease liabilities	495		485		1,276		1,362

Total lease costs	$	4,379	$	3,703	$	12,444	$	10,067

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Supplemental cash flow information related to our leases was as follows:


	Nine Months Ended September 30,
	2024		2023
Cash paid for amounts included in the measurement of operating lease liabilities	$	13,530	$	5,975
Right-of-use assets (“ROU”) obtained in exchange for new operating lease liabilities (1)	$	24,810	$	19,255

(1) Includes non-monetary lease transactions of $10,378. See disclosure below for additional information.

The table below sets forth our future lease obligations under our leases:


	Operating Leases		Financing Leases
Year ended December 31,
2024	$	4,536	$	1,121
2025	14,123		2,213
2026	8,816		2,054
2027	7,671		1,922
2028	6,288		1,955
Thereafter	77,763		15,935
Total lease payments	119,197		25,200
Less: interest	48,948		11,779
Present value of lease liabilities	$	70,249	$	13,421

We have a future lease commitment for a ground lease which does not yet meet the criteria for recording a ROU asset or ROU liability. The net present value of this commitment totals $10,500 as of September 30, 2024 and relates to lease payments to be made over 25 years. We are in process of modifying this ground lease such that the criteria to record a ROU asset and ROU liability may not be met.

Non-monetary Lease Transactions

We have six lease liabilities consisting of obligations that will be settled with non-monetary consideration. The lease liabilities relating to non-monetary consideration were recorded during the nine months ended September 30, 2024 based on the fair market value of the project services or back up power expected to be provided, which approximate the cash payments.

Sale-leasebacks

These facilities are accounted for as failed sale-leasebacks and are classified as long-term financing facilities.

August 2018 Master Sale-leaseback

We enter into amendments to our August 2018 master lease and participation agreement from to time to time, which may extend the maturity date, increase the availability, or modify other covenants.

We sold and leased back three energy assets for $24,286 in cash proceeds under this facility during the nine months ended September 30, 2024. As of September 30, 2024, we have available funds remaining under this lending commitment.

Net gains from amortization expense recognized in cost of revenues relating to deferred gains and losses in connection with our sale-leaseback agreements were $58 and $172 for the three and nine months ended September 30, 2024 and 2023, respectively.

December 2020 Master Sale-leaseback

We enter into amendments to our December 2020 master lease and participation agreement from to time to time, which may extend the maturity date, increase the availability, or modify other covenants. We were in default under this agreement as we had failed to satisfy the insurance requirements and historical coverage ratio under this agreement. On May 3, 2024, we received a waiver on this default.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

August 2024 Sale-leaseback

On April 18, 2023 we entered into lease agreements with two investors and on August 14, 2024 we sold and leased back an energy asset for $234,788, of which 50% was allocated to each investor under these agreements. One lease has an expiration date of August 14, 2034 with an option to extend to August 14, 2044 while the other has an expiration date of August 14, 2044. At closing, we incurred $2,833 in lenders’ fees and debt issuance costs. In August 2024, we used $140,844 of the proceeds to pay off the April 2023 Construction Credit Facility. See Note 8 for additional information. As of September 30, 2024, we have no available funds remaining under this lending commitment.

8. DEBT AND FINANCING LEASE LIABILITIES

Our debt and financing lease liabilities are comprised of the following:


	September 30, 2024		December 31, 2023
Senior secured revolving credit facility (1)	$	106,500	$	140,000
Senior secured term loans	71,250		139,900
Second lien term loan	100,000		—
Energy asset construction facilities (2)	327,365		470,248
Energy asset term loans (2)	708,437		564,530
Sale-leasebacks (3)	370,344		185,698
Financing lease liabilities (4)	13,421		13,928

Total debt and financing lease liabilities	1,697,317		1,514,304
Less: current maturities	343,247		322,247
Less: unamortized discount and debt issuance costs	36,553		21,982
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs	$	1,317,517	$	1,170,075

(1) At September 30, 2024, funds of $67,110 were available for borrowing under this facility.
(2) Most of these agreements are now using the Secured Overnight Financing Rate (“SOFR”) as the primary reference rate used to calculate interest.
(3) These facilities are accounted for as failed sale-leasebacks and are classified as long-term financing facilities. See Note 7 for additional disclosures.
(4) Financing lease liabilities are sale-leaseback arrangements under previous guidance. See Note 7 for additional disclosures.

Senior Secured Credit Facility

On April 10, 2024, we entered into amendment number five to the fifth amended and restated senior secured credit facility to extend the maturity date of the delayed draw term loan A (“DDTLA”) from March 4, 2025 to August 15, 2024. The amendment also included the following modifications:

•principal installments on the DDTLA of $5,000 at closing of the amendment and $7,500 each on or before May 15, 2024, June 15, 2024, and July 15, 2024, with the balance of $7,500 due on August 15, 2024,

•the date by which we shall use commercially reasonable efforts to raise $100,000 in equity or subordinated debt financing was changed from April 15, 2024 to May 15, 2024.

On June 28, 2024, we entered into amendment number six to the fifth amended and restated senior secured credit facility to modify certain of the covenants and other terms to permit us to enter into the second lien credit agreement (as defined below) and to incur indebtedness and make certain other conforming changes in connection with our entry into the second lien credit agreement.

June 2024, Second Lien Term Loan, due June 28, 2029

On June 28, 2024, we entered into a second lien credit agreement which provided a term loan in a principal amount of $100,000 with a maturity date of June 28, 2029. The term loan bears an interest rate of SOFR (5.309% at September 30, 2024), plus an applicable margin of 5.875% per annum. Interest is payable quarterly and unpaid interest and principal is due in the aggregate on June 28, 2029. As of September 30, 2024, we incurred $5,124 in lenders fees and debt issuance costs. Proceeds from this term

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

loan in the amount of $82,105 and $15,000 were used to pay towards our revolving credit facility and the outstanding portion of the DDTLA, respectively, under our senior secured credit facility at closing.

April 2024, Term Notes, due June 30, 2042

On April 5, 2024, an omnibus amendment and reaffirmation agreement was executed with reference to the note purchase and private shelf agreement, dated as of July 27, 2021, and two new series B notes (first lien and second lien) were authorized in the amounts of $92,512 and $12,657, with a maturity date of June 30, 2042. Gross proceeds from the initial issuance on April 5, 2024 were $83,282 and $12,292 with the remainder to be issued upon achieving certain permitting-related and other administrative conditions. The notes bear interest at fixed rates of 6.20% and 8.00%, respectively, per annum and the interest is payable quarterly commencing September 30, 2024. At closing, we incurred $1,296 in lenders fees and debt issuance costs. Proceeds from these notes in the amount of $86,462 were used to pay a portion of the August 2023 construction credit facility. In connection with these notes, we recorded two derivative instruments for make-whole provisions with initial values of $8,733 and $647, respectively, which were recorded as debt discount.

October 2022, Financing Facility, 6.70%, due August 31, 2039

During the nine months ended September 30, 2024, we drew down an additional $38,280 and at September 30, 2024, $369,170 was outstanding under this facility, net of unamortized debt discount and issuance costs.

April 2023, Construction Credit Facility, 6.64%, due August 16, 2024

During the nine months ended September 30, 2024, we drew down an additional $6,429. On July 31, 2024, we executed an extension on this facility updating the maturity date from July 31, 2024 to August 16, 2024. In connection with the August 2024 Sale-leaseback, as disclosed in Note 7, we paid off this facility in the amount of $140,844.

August 2023, Construction Credit Facility, 9.16%, due August 31, 2026

During the nine months ended September 30, 2024, we drew down an additional $137,019 and at September 30, 2024, $292,292 was outstanding under this facility, net of unamortized debt discount and issuance costs. We were in default on this credit facility due to administrative errors, for which a waiver was received on June 27, 2024.

Debt Instruments - Energy Asset Acquisitions

As discussed in Note 6, on August 4, 2023, we acquired an energy asset project. The purchase price for phase 1 was $87,964, of which $5,000 was paid in cash, $46,694 was financed through a seller’s note, and we assumed a construction loan on the energy asset project for $36,270. During the year ended December 31, 2023, we paid $18,400 in principal on the seller’s note. In January 2024, the purchase price was increased by $1,147 and we paid off the seller’s note in the amount of $29,441.

On February 26, 2024, the construction loan in the amount of $36,270 was converted into a term loan and has a maturity date of April 2030. The term loan bears a base SOFR interest rate of 5.31% at September 30, 2024, and an applicable margin of 1.635% per annum for four years after the term conversion date and 1.76% per annum for the following two years. The interest and principal are paid quarterly commencing on March 31, 2024. We failed to achieve the final conditions required to convert the term loan on or prior to June 30, 2024, therefore, the $35,696 outstanding balance was classified as current debt at June 30, 2024. We received a waiver and met the final conditions on August 14, 2024 and the current and non-current debt was classified accordingly at September 30, 2024.

In the second phase, which closed on January 12, 2024, we acquired BCE, including its interest in a consolidated joint venture and its interests in project subsidiaries developing or with rights to develop solar, battery, and microgrid assets for an adjusted purchase price of $48,035, of which $9,839 was paid in cash and $32,500 was financed through a seller’s note. The note bore interest at a fixed rate of 5.0% per annum and the principal and interest was due in August 2024. The note was amended on August 2, 2024 to provide that it be paid in four installments through December 16, 2024 and bears interest at a rate of 5.0% per annum through August 2, 2024 and a rate of 9.0% per annum thereafter. The note was also amended on September 17, 2024 to provide that it be paid in three installments through November 1, 2024. In September 2024, we paid a portion of the seller’s note in the amount of $12,500.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

9. INCOME TAXES

We recorded a benefit for income taxes of $3,324 for the three and nine months ended September 30, 2024 and $10,054 for the three months ended September 30, 2023 and $10,552 for the nine months ended September 30, 2023.

The effective tax rate benefit was 24.3% for the three months ended September 30, 2024, compared to the effective tax rate benefit of 93.2% for the three months ended September 30, 2023. The principal reasons for the higher effective rate for 2024 are primarily due to the effects of foreign earnings, a smaller period discrete benefit and lower current year forecast for Section 179D Energy Efficient Building deductions, offset by higher investment tax credits from solar, and storage plants placed into service or are forecasted to be placed into service during 2024.

The effective tax rate benefit was 26.2% for the nine months ended September 30, 2024, compared to an effective tax rate benefit of 52.1% for the nine months ended September 30, 2023. The principal reasons for the higher effective rate for 2024 are primarily due to the effects of foreign earnings, a smaller period discrete benefit and lower current year forecast for Section 179D Energy Efficient Building deductions, offset by higher investment tax credits from solar, and storage plants placed into service or are forecasted to be placed into service during 2024.

10. COMMITMENTS AND CONTINGENCIES

From time to time, we issue letters of credit and performance bonds with our third-party lenders, to provide collateral.

Legal Proceedings

We are involved in a variety of other claims and other legal proceedings generally incidental to our normal business activities. When we conclude that it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, it is accrued through a charge to earnings and, if material, disclosed below. When only a range of amounts is reasonably estimable and no amount within the range is more likely than another, the low end of the range is recorded. While the ultimate amount of liability incurred in any of these matters is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payment of such liability and claims. However, the final outcome of any of these claims and legal proceedings cannot be predicted with certainty, and unfavorable or unexpected outcomes could result in additional accruals that could be significant to results of operations in a particular year or quarter. Any adjustments to the recorded liability will be reflected in earnings in the periods in which such adjustments become known. For any other claims where a loss may be reasonably possible, but not probable, or is probable but not reasonably estimable, no accrual is established, but the matter, if potentially material, is disclosed below. We routinely review relevant information with respect to our matters and update our accruals, disclosures and estimates of reasonably possible loss based on such reviews. While the outcome of any of these matters cannot be accurately predicted, we do not believe the ultimate resolution of any of these existing matters would have a material adverse effect on our financial condition or results of operations.

In October 2021, we entered into a contract with SCE to design and build three grid scale battery energy storage system (“BESS”) at three sites near existing substation parcels throughout SCE’s service territory in California with an aggregate capacity of 537.5 megawatt (“MW”) (“the SCE Agreement”). As previously disclosed, due to supply chain delays, weather, and other events, we were unable to complete the projects by August 1, 2022 (the “Guaranteed Completion Date”) and made related force majeure claims. In late 2022, SCE also instructed us to adjust the completion of the sites into 2023. Under the SCE Agreement, a failure to reach the Guaranteed Completion Date could, under certain circumstances, result in liquidated damages up to a maximum amount of $89 million being applied. On August 30 2024, we reached an agreement with SCE on the substantial completion of two out of three battery energy storage system projects. We received approximately $110 million on September 5, 2024 as milestone payments, reflecting a set-off of liquidated damages for these two projects. The agreement confirmed that the final resolution related to our obligation to pay the liquidated damages withheld and the applicability and scope of any force majeure relief as well as any cost recovery we may be entitled to remain subject to dispute. We are continuing discussions with SCE on these matters and our view continues to be that liquidated damages should not be applied. It is at least reasonably possible we may incur an obligation to pay liquidated damages up to the maximum amount.

Commitments as a Result of Acquisitions

In December 2021, we completed our acquisition of Plug Smart which provided for an earn-out based on future EBITDA targets beginning with EBITDA performance for the month of December 2021 and each fiscal year thereafter, over a five-year period through December 31, 2026. The maximum cumulative earn-out is $5,000 and we evaluated financial forecasts of the acquired business and concluded that the fair value of this earn-out after payments of $3,040 was approximately $1,465 at December 31,

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

2023. At September 30, 2024 the fair value of the contingent consideration increased to $1,552 and is included in accrued expenses and other current liabilities on the condensed consolidated balance sheets. The increase is due to a $87 increase in fair value. See Note 11 for additional information.

The August 4, 2023 purchase and sale agreement with BCE includes a potential earn-out that could be earned if the projects achieve specified value thresholds in certain phase 2 projects, each of which is very early in development, or if milestones are achieved on other future projects that are not yet started. The total earn-out is limited to $40,000 over a seven-year period beginning on January 12, 2024. We will record a liability for the phase 2 earn-out payments when the amounts are probable and estimable. As of September 30, 2024, none of the earn-out amounts are considered probable and estimable.

11. FAIR VALUE MEASUREMENT

We recognize our financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Three levels of inputs that may be used to measure fair value are as follows:

Level 1: Inputs are based on unadjusted quoted prices for identical instruments traded in active markets.

Level 2: Inputs are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3: Inputs are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The fair values are therefore determined using model-based techniques that include option pricing models, discounted cash flow models, and similar techniques.

The following table presents the input level used to determine the fair values of our financial instruments measured at fair value on a recurring basis:


		Fair Value as of
	Level	September 30, 2024		December 31, 2023
Assets:
Interest rate swap instruments	2	$	2,943	$	3,970


Liabilities:
Interest rate swap instruments	2	$	983	$	629

Make-whole provisions	2	14,344		6,012
Contingent consideration	3	1,552		1,465
Total liabilities		$	16,879	$	8,106

The following table sets forth a summary of changes in the fair value of contingent consideration liability classified as level 3:


	Fair Value as of
	September 30, 2024		December 31, 2023
Contingent consideration liability balance at the beginning of period	$	1,465	$	4,158

Changes in fair value included in earnings	87		347
Payment of contingent consideration	—		(3,040)

Contingent consideration liability balance at the end of period	$	1,552	$	1,465

The following table sets forth the fair value and the carrying value of our long-term debt, excluding financing leases:


	As of September 30, 2024				As of December 31, 2023
	Fair Value		Carrying Value		Fair Value		Carrying Value
Long-term debt (Level 2)	$	1,643,666	$	1,647,343	$	1,466,458	$	1,478,394

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

The fair value of our long-term debt was estimated using discounted cash flows analysis, based on our current incremental borrowing rates for similar types of borrowing arrangements which are considered to be level two inputs. There have been no transfers in or out of level two or three financial instruments for the nine months ended September 30, 2024 and the year ended December 31, 2023.

We are also required to periodically measure certain other assets at fair value on a nonrecurring basis, including long-lived assets, goodwill and other intangible assets. We calculated the fair value used in our annual goodwill impairment analysis utilizing a discounted cash flow analysis and determined that the inputs used were level 3 inputs. There were no assets recorded at fair value on a non-recurring basis as of September 30, 2024 or December 31, 2023.

12. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

The following table presents information about the fair value amounts of our cash flow derivative instruments:


		Derivatives as of
		September 30, 2024		December 31, 2023
	Balance Sheet Location	Fair Value		Fair Value
Derivatives Designated as Hedging Instruments:
Interest rate swap contracts	Other assets	$	457	$	1,023
Interest rate swap contracts	Other liabilities	$	38	$	—
Derivatives Not Designated as Hedging Instruments:
Interest rate swap contracts	Other assets	$	2,486	$	2,947
Interest rate swap contracts	Other liabilities	$	945	$	629


Make-whole provisions	Other liabilities	$	14,344	$	6,012

As of September 30, 2024 and December 31, 2023, all but 3 of our freestanding derivatives were designated as hedging instruments.

The following table presents information about the effects of our derivative instruments on our condensed consolidated statements of income and condensed consolidated statements of comprehensive income:


		Amount of (Gain) Loss Recognized in Net Income
	Location of (Gain) Loss Recognized in Net Income	Three Months Ended September 30,				Nine Months Ended September 30,
		2024		2023		2024		2023
Derivatives Designated as Hedging Instruments:
Interest rate swap contracts	Other expenses, net	$	(259)	$	(546)	$	(806)	$	(757)
Derivatives Not Designated as Hedging Instruments:
Interest rate swap contracts	Other expenses, net	$	2,109	$	(1,281)	$	778	$	(1,160)

Make-whole provisions	Other expenses, net	$	1,592	$	(1,764)	$	(1,045)	$	(2,146)

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

The following table presents the changes in Accumulated Other Comprehensive Income (“AOCI”), net of taxes, from our hedging instruments:


	Nine Months Ended September 30, 2024
Derivatives Designated as Hedging Instruments:
Accumulated gain in AOCI at the beginning of the period	$	746

Unrealized gain recognized in AOCI	360
Gain reclassified from AOCI to other expenses, net	(806)
Loss on derivatives	(446)
Accumulated gain in AOCI at the end of the period	$	300

The following tables present all of our active derivative instruments as of September 30, 2024:

Active Interest Rate Swaps

Expiration Date

Initial Notional
Amount ($)

Status

11-Year, 5.77% Fixed

October 2029

9,200

Designated

15-Year, 5.24% Fixed

June 2033

10,000

Designated

10-Year, 4.74% Fixed

December 2027

14,100

Designated

8-Year, 3.49% Fixed

June 2028

14,643

Designated

8-Year, 3.49% Fixed

June 2028

10,734

Designated

13-Year, 0.72% Fixed

March 2033

9,505

Not Designated

13-Year, 0.72% Fixed

March 2033

6,968

Not Designated

17.75-Year, 3.16% Fixed

December 2040

14,084

Designated

18-Year, 3.81% Fixed

July 2041

32,021

Not Designated

Other Derivatives

Classification

Effective Date

Expiration Date

Fair Value ($)

Make-whole provisions

Liability

June/August 2018

December 2038

252

Make-whole provisions

Liability

August 2016

April 2031

Make-whole provisions

Liability

April 2017

February 2034

Make-whole provisions

Liability

November 2020

December 2027

Make-whole provisions

Liability

October 2011

May 2028

Make-whole provisions

Liability

May 2021

April 2045

Make-whole provisions

Liability

July 2021

March 2046

2,376

Make-whole provisions

Liability

June 2022

March 2042

917

Make-whole provisions

Liability

March 2023

December 2047

1,826

Make-whole provisions

Liability

April 2024

June 2042

8,359

Make-whole provisions

Liability

April 2024

June 2042

475

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

13. VARIABLE INTEREST ENTITIES AND EQUITY METHOD INVESTMENTS

Variable Interest Entities

The table below presents a summary of amounts related to our consolidated investment funds and joint ventures, which we determined meet the definition of a variable interest entity (“VIE”), as of:


	September 30, 2024 (1)						December 31, 2023 (1)
	Investment Funds		Other VIEs		Total VIEs		Investment Funds		Other VIEs		Total VIEs
Cash and cash equivalents	$	1,328	$	10,067	$	11,395	$	5,099	$	16,780	$	21,879

Accounts receivable, net	—		13,760		13,760		—		1,977		1,977
Costs and estimated earnings in excess of billings	2,699		—		2,699		662		13,409		14,071
Prepaid expenses and other current assets	30		1,859		1,889		33		3,749		3,782
Income taxes receivable	—		625		625		—		—		—
Project development costs, net	—		14,244		14,244		—		—		—
Total VIE current assets	4,057		40,555		44,612		5,794		35,915		41,709
Property and equipment, net	—		—		—		—		267		267
Energy assets, net	75,985		89,544		165,529		79,104		173,808		252,912
Intangible assets net	—		26		26		—		—		—
Operating lease assets	4,627		—		4,627		4,748		12,908		17,656
Restricted cash, non-current portion	73		—		73		73		—		73
Other assets	—		102		102		10		74		84
Total VIE assets	$	84,742	$	130,227	$	214,969	$	89,729	$	222,972	$	312,701
Current portions of long-term debt and financing lease liabilities	$	2,200	$	—	$	2,200	$	2,190	$	132,427	$	134,617
Accounts payable	1,350		7,403		8,753		1,440		6,490		7,930
Accrued expenses and other current liabilities	208		1,549		1,757		241		19,627		19,868
Current portions of operating lease liabilities	146		—		146		133		6,953		7,086
Billings in excess of cost and estimated earnings	—		12,719		12,719		—		3,153		3,153
Income Taxes Payable	—		262		262		—		—		—
Total VIE current liabilities	3,904		21,933		25,837		4,004		168,650		172,654
Long-term debt and financing lease liabilities, net of current portion, unamortized discount and debt issuance costs	16,028		—		16,028		17,167		—		17,167
Long-term operating lease liabilities, net of current portion	5,002		—		5,002		5,063		3,823		8,886
Other liabilities	392		—		392		356		—		356
Total VIE liabilities	$	25,326	$	21,933	$	47,259	$	26,590	$	172,473	$	199,063

(1) The amounts in the above table are reflected in Note 1 on our condensed consolidated balance sheets.

See Note 14 for additional information on the call and put options related to our investment funds.

Non-controlling Interests

Non-controlling interests represents the equity owned by the other joint venture members of consolidated joint ventures. On February 9, 2024, we entered into an agreement to sell a 40% interest in a consolidated joint venture, and we received $28,864 in cash. We also received additional contributions totaling $4,925 as of September 30, 2024.

During the nine months ended September 30, 2024, we acquired the remaining interest in one joint venture when we closed on the phase 2 acquisition of BCE as discussed in Note 6.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Equity and Cost Method Investments

Unconsolidated joint ventures are accounted for under the equity method. For these unconsolidated joint ventures, our investment balances are included in other assets on the condensed consolidated balance sheets and our pro rata share of net income or loss is included in earnings from unconsolidated entities on the condensed consolidated statements of income.

During the nine months ended September 30, 2024, one of our equity method investments was sold to another company. We received distributions and net proceeds totaling $13,091 and recognized a gain on the sale in the amount of $224, which is included in earnings from unconsolidated entities in the condensed consolidated statements of income.

The following table provides information about our equity and cost method investments in joint ventures:


	As of
	September 30, 2024		December 31, 2023
Equity and cost method investments	$	16,729	$	18,709

14. REDEEMABLE NON-CONTROLLING INTERESTS

Our subsidiaries with membership interests in the investment funds we formed have the right to elect to require the non-controlling interest holder to sell all of its membership units to our subsidiaries, a call option. Our investment funds also include rights for the non-controlling interest holder to elect to require our subsidiaries to purchase all of the non-controlling membership interests in the fund, a put option.

The call options are exercisable beginning on the date that specified conditions are met for each respective fund. The call option start date for two of these funds began in April 2024 and June 2024. The put options for the investment funds are exercisable beginning on the date that specified conditions are met for each respective fund.

We initially record our redeemable non-controlling interests at fair value on the date of acquisition and subsequently adjust to redemption value. At both September 30, 2024 and December 31, 2023 redeemable non-controlling interests were reported at their carrying values, as the carrying value at each reporting period was greater than the estimated redemption value.

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

15. EARNINGS PER SHARE

Earnings Per Share

The following is a reconciliation of the numerator and denominator for the computation of basic and diluted earnings per share:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2024		2023		2024		2023
Numerator:
Net income attributable to common shareholders	$	17,599	$	21,265	$	19,672	$	28,735
Adjustment for accretion of tax equity financing fees	(26)		(26)		(80)		(81)
Income attributable to common shareholders	$	17,573	$	21,239	$	19,592	$	28,654
Denominator:
Basic weighted-average shares outstanding	52,413		52,209		52,352		52,104
Effect of dilutive securities:
Stock options	830		1,091		746		1,155
Diluted weighted-average shares outstanding	53,243		53,300		53,098		53,259
Net income per share attributable to common shareholders:
Basic	$	0.34	$	0.41	$	0.37	$	0.55
Diluted	$	0.33	$	0.40	$	0.37	$	0.54

Potentially dilutive shares (1)	2,204		1,954		2,084		1,950

(1) Potentially dilutive shares attributable to stock options were excluded from the computation of diluted earnings per share as the effect would have been anti-dilutive.

16. STOCK-BASED COMPENSATION

We recorded stock-based compensation expense, including expense related to our employee stock purchase plan, as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Stock-based compensation expense	$	3,664	$	4,319	$	10,368	$	12,318

Our stock-based compensation expense is included in selling, general and administrative expenses in the condensed consolidated statements of income. As of September 30, 2024, there was $29,027 of unrecognized compensation expense related to non-vested stock option awards that is expected to be recognized over a weighted-average period of 1.9 years.

Stock Option and Restricted Stock Units (“RSUs”) Grants

During the nine months ended September 30, 2024, we granted 627 common stock options to certain employees under our 2020 Stock Incentive Plan (“2020 Plan”), which have a contractual life of ten years and vest over a five-year period. We also granted awards of 122 RSUs to certain employees and directors under our 2020 Plan. We did not grant awards to individuals who were not either an employee or director of ours during the nine months ended September 30, 2024 and 2023.

17. BUSINESS SEGMENT INFORMATION

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

Our North America Regions, U.S. Federal and Europe segments offer energy efficiency products and services which include the design, engineering and installation of equipment and other measures to improve the efficiency and control the operation of a facility’s energy infrastructure, renewable energy solutions and services and the development and construction of small-scale plants that Ameresco owns or develops for customers that produce electricity, gas, heat or cooling from renewable sources of energy and O&M services.

Our Alternative Fuels segment sells electricity, thermal, renewable fuel, or biomethane using biogas as a feedstock from small-scale plants that we own and operate and provides O&M services for customer-owned small-scale plants.

The “All Other” category includes consulting services and the sale of solar PV energy products and systems which we refer to as integrated-PV.

These segments do not include results of other activities, such as corporate operating expenses not specifically allocated to the segments. Certain reportable segments are an aggregation of operating segments.

The tables below present our business segment information recast for the prior-year period and a reconciliation to the condensed consolidated financial statements:


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total Consolidated
Three Months Ended September 30, 2024
Revenues	$	291,611	$	89,113	$	52,613	$	43,537	$	23,999	$	500,873
Loss on derivatives	1,592		1,342		—		767		—		3,701
Interest expense, net of interest income	3,577		2,017		1,371		6,203		(1)		13,167
Depreciation and amortization of intangible assets	9,552		4,751		503		7,494		689		22,989
Unallocated corporate activity	—		—		—		—		—		(20,046)
Income (loss) before taxes, excluding unallocated corporate activity	22,662		9,543		(3,285)		2,236		2,580		33,736


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total Consolidated
Three Months Ended September 30, 2023
Revenues	$	157,700	$	87,341	$	40,500	$	27,319	$	22,289	$	335,149
Gain on derivatives	(1,764)		(791)		—		(492)		—		(3,047)
Interest expense, net of interest income	1,758		278		764		4,764		—		7,564
Depreciation and amortization of intangible assets	7,437		1,229		645		6,669		633		16,613
Unallocated corporate activity	—		—		—		—		—		(20,380)
Income before taxes, excluding unallocated corporate activity	15,712		12,129		1,049		820		1,458		31,168

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total Consolidated








Nine months ended September 30, 2024
Revenues	$	638,027	$	236,740	$	169,794	$	122,248	$	70,452	$	1,237,261
(Gain) loss on derivatives	(1,045)		316		—		462		—		(267)
Interest expense, net of interest income	7,788		4,208		3,147		17,634		(1)		32,776
Depreciation and amortization of intangible assets	26,422		9,626		1,513		21,709		2,001		61,271
Unallocated corporate activity	—		—		—		—		—		(64,821)
Income before taxes, excluding unallocated corporate activity	37,098		26,284		(2,044)		8,258		7,931		77,527


	North America Regions		U.S. Federal		Europe		Alternative Fuels		All Other		Total Consolidated








Nine Months Ended September 30, 2023
Revenues	$	450,013	$	226,916	$	103,121	$	85,974	$	67,241	$	933,265
Gain on derivatives	(2,145)		(787)		—		(376)		—		(3,308)
Interest expense, net of interest income	5,240		864		1,515		10,551		(2)		18,168
Depreciation and amortization of intangible assets	21,002		3,689		1,430		18,741		1,191		46,053
Unallocated corporate activity	—		—		—		—		—		(56,354)
Income before taxes, excluding unallocated corporate activity	34,981		26,228		2,252		7,446		5,707		76,614

See Note 3 for additional information about our revenues by product line.

18. OTHER EXPENSES, NET

The following table presents the components of other expenses, net:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Loss (gain) on derivatives	$	3,701	$	(3,045)	$	(267)	$	(3,306)
Interest expense, net of interest income	18,416		9,199		47,460		23,614
Amortization of debt discount and debt issuance costs	1,442		1,042		3,764		3,407
Foreign currency transaction (gain) loss	(2,219)		1,371		(541)		1,364
Government incentives	(189)		—		(188)		(522)
Factoring & other fees	318		2,075		1,171		3,326
Other expenses, net	$	21,469	$	10,642	$	51,399	$	27,883

19. ASSETS HELD FOR SALE

During the three months ended September 30, 2024, we entered into thirteen membership interest purchase agreements which converted energy assets designated as held for sale during 2024 to projects, by which we are able to recognize revenue under their respective engineering, procurement, and construction contracts. These assets had a carrying value of $54,012 at the time of the sale and during the period we recognized revenue of $67,673 and gross profit of $12,702 in the condensed consolidated statements of income.

During the nine months ended September 30, 2024, we identified five assets that previously met the criteria to be classified as held for sale, but we no longer have the intent to sell the assets. As of December 31, 2023, the carrying value of these assets was

Table of Contents

AMERESCO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands) (Unaudited) (Continued)

$33,851 with liabilities associated with assets classified as held for sale of $5,546. As a result of the change in circumstances, the balances for these assets were reclassified to held and used and the reclassification did not have a material impact to current period results.

As of September 30, 2024, we determined that there were five energy asset projects under construction that were considered to be assets held for sale, since these assets were being marketed for sale and all the criteria to be classified as held for sale under ASC 360, Property, Plant and Equipment—Impairment or Disposal of Long-Lived Assets, had been met. Assets held for sale are measured at the lower of their carrying value or the fair value less cost to sell.

The table below reflects the assets and liabilities associated with assets held for sale by segment:


	September 30, 2024						December 31, 2023
Balance Sheet Location	North America Regions		U.S. Federal		Total		North America Regions		U.S. Federal		Total

Other assets	$	19,321	$	401	$	19,722	$	18,895	$	18,253	$	37,148
Operating lease assets	1,700		—		1,700		1,256		—		1,256
Assets classified as held for sale	$	21,021	$	401	$	21,422	$	20,151	$	18,253	$	38,404

Accounts payable	$	2,975	$	—	$	2,975	$	5,418	$	601	$	6,019
Accrued expenses and other current liabilities	493		—		493		14		—		14
Billings in excess of cost and estimated earnings	—		—		—		—		1,088		1,088
Long-term operating lease liabilities, net of current portion	1,832		—		1,832		1,230		—		1,230
Liabilities directly associated with assets classified as held for sale	$	5,300	$	—	$	5,300	$	6,662	$	1,689	$	8,351

Table of Contents

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

You should read the following discussion and analysis of our financial condition and results of operations together with our unaudited condensed consolidated financial statements and the notes related thereto included in Part I, Item 1 of this Quarterly Report on Form 10-Q and the audited consolidated financial statements and notes thereto and management’s discussion and analysis of financial condition and results of operations for the year ended December 31, 2023 included in our Annual Report on Form 10-K (“2023 Form 10-K”) for the year ended December 31, 2023 filed on February 29, 2024 with the U.S. Securities and Exchange Commission (“SEC”). This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward looking statements include statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans, objectives of management, expected market growth, the impact of changes in the U.S. administration and other characterizations of future events or circumstances. All statements, other than statements of historical fact, including statements that refer to our expectations as to the future growth of our business and associated expenses; our expectations as to revenue generation; the future availability of borrowings under our revolving credit facility; the expected future growth of the market for energy efficiency and renewable energy solutions; our backlog, awarded projects and recurring revenue and the timing of such matters; our expectations as to financing and acquisition activity; the impact of any restructuring; the uses of future earnings; our intention to repurchase shares of our Class A common stock; the expected energy and cost savings of our projects; the expected energy production capacity of our renewable energy plants; the impact of supply chain disruptions, shortage and cost of materials and labor, and other macroeconomic and geopolitical challenges; our expectations related to our agreement with SCE including the impact of any delays; the impact of a possible U.S. federal government shutdown; the U.S. Department of Commerce’s solar panel import investigation; the imposition of additional tariffs, and other characterizations of future events or circumstances are forward-looking statements. Forward looking statements are often, but not exclusively, identified by the use of words such as “may,” “will,” “expect,” “believe,” “anticipate,” “intend,” “could,” “estimate,” “target,” “project,” “predict” or “continue,” and similar expressions or variations. These forward-looking statements are based on current expectations and assumptions that are subject to risks, uncertainties and other factors that could cause actual results and the timing of certain events to differ materially and adversely from future results expressed or implied by such forward-looking statements. Risks, uncertainties, and factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section titled “Risk Factors,” set forth in Part I, Item 1A of our 2023 Form 10-K and Part II, Item 1A of our Q2 2024 Form 10-Q. Subsequent events and developments may cause our views to change. However, while we may elect to update these forward-looking statements at some point in the future, we have no current intention of doing so and undertake no obligation to do so except to the extent required by applicable law. You should, therefore, not rely on these forward-looking statements as representing our views as of any date subsequent to the date of this Quarterly Report on Form 10-Q.

Overview

Ameresco is a leading clean technology integrator and renewable energy asset developer, owner, and operator. Our comprehensive portfolio includes energy efficiency, infrastructure upgrades, asset sustainability, and renewable energy supply solutions. We help organizations meet energy savings and energy management challenges with an integrated comprehensive approach to energy efficiency and renewable energy. Leveraging budget neutral solutions, including energy savings performance contracts (“ESPCs”) and power purchase agreements (“PPAs”), we aim to eliminate the financial barriers that traditionally hamper energy efficiency and renewable energy projects.

Drawing from decades of experience, Ameresco develops tailored energy management projects for its customers in the commercial, industrial, local, state, and federal government, K-12 education, higher education, healthcare, public housing sectors, and utilities.

We provide solutions primarily throughout North America and Europe and our revenues are derived principally from energy efficiency projects, which entail the design, engineering, and installation of equipment and other measures that incorporate a range of innovative technology and techniques to improve the efficiency and control the operation of a facility’s energy infrastructure; this can include designing and constructing a central plant or cogeneration system for a customer providing power, heat and/or cooling to a building, or other small-scale plant that produces electricity, gas, heat or cooling from renewable sources of energy. We also derive revenue from long-term O&M contracts, energy supply contracts for renewable energy operating assets that we own, integrated-PV, and consulting and enterprise energy management services.

In addition to organic growth, strategic acquisitions of complementary businesses and assets have been an important part of our growth enabling us to broaden our service offerings and expand our geographical reach.

Table of Contents

Key Factors and Trends

The Inflation Reduction Act (“IRA”)

The IRA was signed into law on August 16, 2022. The bill invests nearly $369 billion in energy and climate policies. The provisions of the IRA are intended to, among other things, incentivize domestic clean energy investment, manufacturing, and deployment. The IRA incentivizes the deployment of clean energy technologies by extending and expanding federal incentives such as the ITC and the Production Tax Credit (“PTC”). We view the enactment of the IRA as favorable for the overall business climate for the renewable energy industry. However, uncertainty related to the applicability of the IRA to our current and planned projects and the scope of the IRA, and its interpretations may change as a result of the change in the U.S. administration or as a result of government agencies’ authority to interpret federal law being restricted as a result of the Supreme Court’s overturning of the Chevron doctrine. We may also continue to experience a delay in our sales cycles and new award activity as our customers consider the applicability of the IRA and as financing projects may take longer as result of this uncertainty. The IRA may increase the competition in our industry and as such increase the demand and cost for labor, equipment and commodities needed for our projects.

Supply Chain Disruptions and Other Global Factors

We continue to monitor the impact of global conditions on our operations, financial results, and liquidity, such as the impact of supply chain challenges, the war in Ukraine and the Middle East, the volatile U.S. political climate, including uncertainty regarding the impact of the results of the U.S. presidential election and evolving relations between the U.S. and China. The impact to our future operations, results of operations as a result of these global trends, remains uncertain and the challenges we face, such as demand for our products and services, governmental support for clean energy, an increase in costs for logistics and supply chains, intermittent supplier delays, and shortages of certain components needed for our business, such as lithium-ion battery cells, semiconductors, and other components required for our clean energy solutions may continue or become more pronounced.

During the nine months ended September 30, 2024, we were impacted by supply chain disruptions and varying levels of inflation, as a result macroeconomic conditions. These conditions caused delays in the timely delivery of material to customer sites, delays and disruptions in the completion of certain projects, increased shipping and transportation costs, and increased component and labor costs. This negatively impacted our results of operations during the nine months ended September 30, 2024. We expect the trends of supply chain challenges to continue. We continue to monitor macroeconomic conditions to remain flexible and to optimize and evolve our business as appropriate to address the challenges presented from these conditions.

In August 2023, the U.S. Department of Commerce issued a final ruling in the Auxin Solar trade case related to solar tariff imports that will lead to higher tariffs on certain imported solar products from Malaysia, Vietnam, Thailand, and Cambodia beginning in June 2024. Similarly, the imposition of additional tariffs, changes in trade regulations, and the enforcement of the Uyghur Forced Labor Prevention Act could disrupt the solar panel supply chain and increase the cost for components and services required for our clean energy solutions. This could ultimately impact the demand for clean energy solutions and increase our costs. We are closely monitoring the investigation and any related trade and tariff regulations.

Climate Change and Effects of Seasonality

The global emphasis on climate change and reducing carbon emissions has created opportunities for our industry. Sustainability has been at the forefront of our business since its inception, and we are committed to staying at the leading edge of innovation taking place in the energy sector. We believe the next decade will be marked by dramatic changes in the power infrastructure with resources shifting to more distributed assets, storage, and microgrids to increase overall reliability and resiliency. The sustainability efforts are impacted by regulations, and changes in the regulatory climate may impact the demand for our products and offerings. See “Our business depends in part on federal, state, provincial and local government support or the imposition of additional taxes, tariffs, duties, or other assessments on renewable energy or the equipment necessary to generate or deliver it, for energy efficiency and renewable energy, and a decline in such support could harm our business” and “Compliance with environmental laws could adversely affect our operating results” in Item 1A, Risk Factors in our 2023 Form 10-K.

Climate change also brings risks, as the impacts have caused us to experience more frequent and severe weather interferences, and this trend is expected to continue. We are subject to seasonal fluctuations and construction cycles, particularly in climates that experience colder weather during the winter months, such as the northern United States and Canada, and climates that experience extreme weather events, such as wildfires, storms or flooding, hurricanes, or at educational institutions, where large projects are typically carried out during summer months when their facilities are unoccupied. In addition, government customers, many of which have fiscal years that do not coincide with ours, typically follow annual procurement cycles and appropriate funds on a fiscal-year basis even though contract performance may take more than one year. Further, government contracting cycles can be affected by the timing of, and delays in, the legislative process related to government programs and incentives that help drive

Table of Contents

demand for energy efficiency and renewable energy projects. As a result, our revenues and operating income in the third and fourth quarter are typically higher, and our revenues and operating income in the first quarter are typically lower, than in other quarters of the year, however, this may become harder to predict with the potential effects of climate change. As a result of such fluctuations, we may occasionally experience declines in revenues or earnings as compared to the immediately preceding quarter, and comparisons of our operating results on a period-to-period basis may not be meaningful.

Our annual and quarterly financial results are also subject to significant fluctuations as a result of other factors, many of which are outside our control. See “Our business is affected by seasonal trends and construction cycles, and these trends and cycles could have an adverse effect on our operating results” and “Extreme weather events and other natural disasters, particularly those exacerbated by climate change, could materially affect our ability to complete our projects and develop our assets” in Item 1A, Risk Factors in our 2023 Form 10-K.

The Southern California Edison (“SCE”) Agreement

On August 30 2024, we reached an agreement with SCE on the substantial completion of two out of three battery energy storage system projects. We received approximately $110 million on September 5, 2024 as milestone payments, reflecting both a set-off of liquidated damages which are still in dispute and $3 million that SCE withheld for additional work SCE required. Upon final acceptance of these two projects, we will invoice SCE for the remaining final acceptance milestone payments for these projects. The Agreement also confirmed that the final resolution related to our obligation to pay the liquidated damages withheld and the applicability and scope of any force majeure relief as well as any cost recovery we may be entitled to remain subject to dispute. Ameresco is continuing discussions with SCE on these matters and its view continues to be that liquidated damages should not be applied. If we fail to come to an agreement with SCE about the applicability and scope of force majeure relief and liquidated damages, we may be required to pay liquidated damages up to an aggregate maximum of $89 million and may not be able to recover costs associated with the force majeure events.

The third project is expected to reach substantial completion during the fourth quarter of 2024.

A majority of our revenues under this contract were recognized in 2022 based upon costs incurred in 2022 relative to total expected costs on this project.

Stock-based Compensation

During the nine months ended September 30, 2024, we granted 626,503 common stock options and 122,366 restricted stock units (“RSUs”) to certain employees and directors under our 2020 Plan. Our unrecognized stock-based compensation expense was $29.0 million at September 30, 2024, compared to $30.1 million at December 31, 2023, and is expected to be recognized over a weighted-average period of two years. See Note 16 “Stock-based Compensation” for additional information.

Backlog and Awarded Projects

Backlog is an important metric for us because we believe strong order backlogs indicate growing demand and a healthy business over the medium to long term, conversely, a declining backlog could imply lower demand.

Table of Contents

The following table presents our backlog:


	As of September 30,
(In Thousands)	2024		2023
Project Backlog
Fully-contracted backlog	$	1,852,774	$	1,188,460
Awarded, not yet signed customer contracts	2,656,082		2,512,880
Total project backlog	$	4,508,856	$	3,701,340
12-month project backlog	$	976,530	$	765,125

O&M Backlog
Fully-contracted backlog	$	1,421,204	$	1,237,985
12-month O&M backlog	$	91,380	$	87,475

Total project backlog represents energy efficiency projects that are active within our sales cycle. Our sales cycle begins with the initial contact with the customer and ends, when successful, with a signed contract, also referred to as fully-contracted backlog. Our sales cycle averages 18 to 42 months. Awarded backlog is created when a potential customer awards a project to Ameresco following a request for proposal. Once a project is awarded but not yet contracted, we typically conduct a detailed energy audit to determine the scope of the project as well as identify the savings that may be expected to be generated from upgrading the customer’s energy infrastructure. At this point, we also determine the subcontractors, what equipment will be used, and assist in arranging for third party financing, as applicable. It takes an average of 12 to 24 months to convert our awarded backlog to fully-contracted backlog. It may take longer, as it depends on the size and complexity of the project. Historically, approximately 90% of our awarded backlog projects have resulted in a signed contract. After the customer and Ameresco agree to the terms of the contract and the contract is executed, the project moves to fully-contracted backlog. The contracts reflected in our fully-contracted backlog typically have a construction period of 12 to 36 months and we typically expect to recognize revenue for such contracts over the same period.

Our O&M backlog represents expected future revenues under signed, multi-year customer contracts for the delivery of O&M services, primarily for energy efficiency and renewable energy construction projects completed by us for our customers.

We define our 12-month backlog as the estimated amount of revenues that we expect to recognize in the next twelve months from our fully-contracted backlog. See “We may not recognize all revenues from our backlog or receive all payments anticipated under awarded projects and customer contracts” and “In order to secure contracts for new projects, we typically face a long and variable selling cycle that requires significant resource commitments and requires a long lead time before we realize revenues” in Item 1A, Risk Factors in our 2023 Form 10-K.

Assets in Development

Assets in development, which represents the potential design/build project value of renewable energy plants that have been awarded or for which we have secured development rights, were estimated at $2.3 billion and $1.8 billion, net of amount attributable to a non-controlling interest at September 30, 2024 and 2023, respectively. This is another important metric because it helps us gauge our future capital expenditure needs and develop-and-sell opportunities as well as our capacity to generate electricity or deliver renewable gas fuel which contributes to our recurring revenue stream.

Table of Contents

Results of Operations

All financial result comparisons made below are against the same prior year period unless otherwise noted.

The following tables set forth certain financial data from the condensed consolidated statements of income for the periods indicated:


	Three Months Ended September 30,
	2024				2023				Year-Over-Year Change
(In Thousands)	Amount		% of Revenues		Amount		% of Revenues		Dollar Change		% Change
Revenues	$	500,873	100.0	%	$	335,149	100.0	%	$	165,724	49.4	%
Cost of revenues	423,734		84.6	%	271,493		81.0	%	152,241		56.1	%
Gross profit	77,139		15.4	%	63,656		19.0	%	13,483		21.2	%
Earnings from unconsolidated entities	159		—	%	526		0.1	%	(367)		(69.8)	%
Selling, general and administrative expenses	42,139		8.4	%	42,752		12.8	%	(613)		(1.4)	%
Operating income	35,159		7.0	%	21,430		6.4	%	13,729		64.1	%
Other expenses, net	21,469		4.3	%	10,642		3.2	%	10,827		101.7	%
Income before income taxes	13,690		2.7	%	10,788		3.2	%	2,902		26.9	%
Income tax benefit	(3,324)		(0.7)	%	(10,054)		(3.0)	%	(6,730)		(66.9)	%
Net income	17,014		3.4	%	20,842		6.2	%	(3,828)		(18.4)	%
Net loss attributable to non-controlling interests and redeemable non-controlling interests	585		0.1	%	423		0.1	%	162		38.3	%
Net income attributable to common shareholders	$	17,599	3.5	%	$	21,265	6.3	%	$	(3,666)	(17.2)	%

Our results of operations for the three months ended September 30, 2024 are due to the following:

•Revenues: total revenues for the three months ended September 30, 2024 increased over 2023 primarily due to a $142.7 million, or 59%, increase in our project revenues attributed to the timing of revenue recognized based upon costs incurred to date relative to total expected costs on active projects.

•Cost of Revenues and Gross Profit: the increase in cost of revenues is primarily due to the increase in project revenues described above and higher depreciation expenses from the continued growth in our operating assets portfolio. Gross profit as a percent of revenues decreased due primarily to cost budget revisions on our SCE battery storage projects and a mix of lower-margin projects.

•Earnings from Unconsolidated Entities: the decrease in earnings from unconsolidated entities is due to the sale of one of our equity method investments during the first quarter of 2024.

•Selling, General and Administrative Expenses (“SG&A”): SG&A expenses for the three months ended September 30, 2024 decreased over 2023 primarily due to lower professional fees partially offset by higher occupancy costs, salaries and related benefits and insurance.

•Other Expenses, Net: Other expenses, net for the three months ended September 30, 2024 increased over 2023 primarily due to higher interest expenses, net of $9.2 million related to an increase in the amount of energy asset financings and corporate debt outstanding and higher interest rates and increased losses from derivatives transactions of $6.7 million, partially offset by increased gains from foreign currency transactions of $3.6 million and a decrease in factoring fees of $1.8 million.

•Income Tax Benefit: the benefit for income taxes is based on various rates set by federal, state, provincial and local authorities and is affected by permanent and temporary differences between financial accounting and tax reporting requirements. We expect the effective tax rate will be higher in 2024 as compared to 2023 primarily due to the effects of foreign earnings, a smaller period discrete benefit and lower current year forecast for Section 179D Energy Efficient Building deductions, offset by higher investment tax credits from solar, and storage plants placed into service or are forecasted to be placed into service during 2024.

Table of Contents

•Net Income and Earnings Per Share: Net income attributable to common shareholders decreased due to the reasons described above, partially offset by a lower net loss attributable to NCI and redeemable NCI this year compared to the prior year. Basic and diluted earnings per share for the three months ended September 30, 2024 was $0.34 and $0.33, respectively, a decrease of $0.07 in per share compared to the same period of 2023.


	Nine Months Ended September 30,
	2024				2023				Year-Over-Year Change
(In Thousands)	Amount		% of Revenues		Amount		% of Revenues		Dollar Change		% Change
Revenues	$	1,237,261	100.0	%	$	933,265	100.0	%	$	303,996	32.6	%
Cost of revenues	1,047,960		84.7	%	761,012		81.5	%	286,948		37.7	%
Gross profit	189,301		15.3	%	172,253		18.5	%	17,048		9.9	%
Earnings from unconsolidated entities	724		0.1	%	1,356		0.1	%	(632)		(46.6)	%
Selling, general and administrative expenses	125,920		10.2	%	125,466		13.4	%	454		0.4	%
Operating income	64,105		5.2	%	48,143		5.2	%	15,962		33.2	%
Other expenses, net	51,399		4.2	%	27,883		3.0	%	23,516		84.3	%
Income before income taxes	12,706		1.0	%	20,260		2.2	%	(7,554)		(37.3)	%
Income tax benefit	(3,324)		(0.3)	%	(10,552)		(1.1)	%	(7,228)		(68.5)	%
Net income	16,030		1.3	%	30,812		3.3	%	(14,782)		(48.0)	%
Net loss (income) attributable to non-controlling interests and redeemable non-controlling interests	3,642		0.3	%	(2,077)		(0.2)	%	5,719		275.3	%
Net income attributable to common shareholders	$	19,672	1.6	%	$	28,735	3.1	%	$	(9,063)	(31.5)	%

Our results of operations for the nine months ended September 30, 2024 are due to the following:

◦Revenues: total revenues for the nine months ended September 30, 2024 increased over 2023 primarily due to a $265.6 million, or 41%, increase in our project revenues attributed to the timing of revenue recognized based upon costs incurred to date relative to total expected costs on active projects.

◦Cost of Revenues and Gross Profit: the increase in cost of revenues is primarily due to the increase in project revenues described above and higher depreciation expenses from the continued growth in our operating assets portfolio. Gross profit as a percent of revenues decreased due primarily to cost budget revisions on our SCE battery storage projects and a mix of lower-margin projects.

◦Earnings from Unconsolidated Entities: the decrease in earnings from unconsolidated entities is due to the sale of one of our equity method investments to during the first quarter of 2024.

◦Selling, General and Administrative Expenses (“SG&A”): SG&A expenses for the nine months ended September 30, 2024 increased over 2023 primarily due to higher insurance and occupancy costs, other miscellaneous charges, and charges to credit losses partially offset by lower professional fees and salaries and related benefits as a result of a decrease in non-cash stock-based compensation expense, and lower project development costs.

◦Other Expenses, Net: Other expenses, net for the nine months ended September 30, 2024 increased over 2023 primarily due to higher interest expenses, net of $23.8 million related to an increase in the amount of energy asset financings and corporate debt outstanding and higher interest rates, increased losses from derivatives transactions of $3.0 million, partially offset by increased gains from foreign currency transaction of $1.9 million and a decrease in factoring fees of $2.2 million.

◦Income Tax Benefit: the benefit for income taxes is based on various rates set by federal, state, provincial and local authorities and is affected by permanent and temporary differences between financial accounting and tax reporting requirements. We expect the effective tax rate will be higher in 2024 as compared to 2023 primarily due to the effects of foreign earnings, a smaller period discrete benefit and lower current year forecast for Section 179D Energy Efficient Building deductions, offset by higher investment tax credits from solar, and storage plants placed into service or are forecasted to be placed into service during 2024.

◦Net Income and Earnings Per Share: Net income attributable to common shareholders decreased due to the reasons described above, partially offset by a net loss attributable to NCI and redeemable NCI this year compared to income in

Table of Contents

the prior year. Basic and diluted earnings per share for the nine months ended September 30, 2024 was $0.37 per share, a decrease of $0.18 in basic earnings per share and a decrease of $0.17 in diluted earnings per share compared to the same period of 2023.

Business Segment Analysis

Our reportable segments for the three and nine months ended September 30, 2024 were North America Regions, U.S. Federal, Europe, Alternative Fuels and All Other. On January 1, 2024, we changed the structure of our internal organization, and our U.S. Regions and Canada are now included in North America Regions. Additionally, our Asset Sustainability Group was formerly included in Canada, but is now included in “All Other”. As a result, previously reported amounts have been reclassified for comparative purposes. These segments do not include results of other activities, such as corporate operating expenses not specifically allocated to the segments. See Note 17 “Business Segment Information” for additional information about our segments.

All financial result comparisons made below relate to the three and nine-month period and are against the same prior year period unless otherwise noted.

Revenues


	Three Months Ended September 30,								Nine Months Ended September 30,
(In Thousands)	2024		2023		Dollar Change		% Change		2024		2023		Dollar Change		% Change
North America Regions	$	291,611	$	157,700	$	133,911	84.9	%	$	638,027	$	450,013	$	188,014	41.8	%
U.S. Federal	89,113		87,341		1,772		2.0		236,740		226,916		9,824		4.3
Europe	52,613		40,500		12,113		29.9		169,794		103,121		66,673		64.7
Alternative Fuels	43,537		27,319		16,218		59.4		122,248		85,974		36,274		42.2
All Other	23,999		22,289		1,710		7.7		70,452		67,241		3,211		4.8
Total revenues	$	500,873	$	335,149	$	165,724	49.4	%	$	1,237,261	$	933,265	$	303,996	32.6	%

•North America Regions: revenues increased primarily due to higher project revenues resulting from the timing of revenue recognized based upon costs incurred to date relative to total expected costs on active projects.

•U.S. Federal: the increase in revenue versus the prior year is primarily due to higher energy asset revenue, partially offset by lower project revenue attributed to the timing of activity on certain long-term contracts.

•Europe: revenues increased primarily due to higher project revenues resulting from the timing of revenue recognized based upon costs incurred to date relative to total expected costs on active projects in the United Kingdom compared to the prior period.

•Alternative Fuels: the increase is primarily due to higher project revenues and an increase in energy asset revenues resulting from the continued growth of our operating portfolio, increased production levels and stronger pricing on renewable identification numbers (“RIN’s”) generated from our renewable natural gas facilities.

•All Other: All other revenues increased year-over-year primarily due to increased consulting revenue.

Income before Taxes and Unallocated Corporate Activity


	Three Months Ended September 30,								Nine Months Ended September 30,
(In Thousands)	2024		2023		Dollar Change		% Change		2024		2023		Dollar Change		% Change
North America Regions	$	22,662	$	15,712	$	6,950	44.2	%	$	37,098	$	34,981	$	2,117	6.1	%
U.S. Federal	9,543		12,129		(2,586)		(21.3)		26,284		26,228		56		0.2
Europe	(3,285)		1,049		(4,334)		(413.2)		(2,044)		2,252		(4,296)		(190.8)
Alternative Fuels	2,236		820		1,416		172.7		8,258		7,446		812		10.9
All Other	2,580		1,458		1,122		77.0		7,931		5,707		2,224		39.0
Unallocated corporate activity	(20,046)		(20,380)		334		1.6		(64,821)		(56,354)		(8,467)		(15.0)
Income before taxes	$	13,690	$	10,788	$	2,902	26.9	%	$	12,706	$	20,260	$	(7,554)	(37.3)	%

Table of Contents

•North America Regions: the increase is primarily due to the increased revenues noted above and lower SG&A expenses, partially offset by higher interest expenses, net and lower gains on derivatives.

•U.S. Federal: the decrease for the three-month period is primarily due to higher interest expenses, net, lower gains on derivatives, and increased SG&A expenses and interest expenses, net, partially offset by higher revenues described above and higher gross profit as a percent of revenues. The increase for the nine-month period is primarily due to the higher revenues described above and higher gross profit as a percent of revenues partially offset by increased SG&A expenses and interest expenses, net.

•Europe: the decrease is primarily due to lower gross profit as a percent of revenues due to a mix of lower-margin projects, as well as increases in interest expenses, net and higher SG&A expenses, partially offset by lower factoring fees.

•Alternative Fuels: the is primarily due to the increased revenues described above and lower SG&A expenses, partially offset by higher interest expenses and losses on derivatives.

•All Other: the increase is primarily due to higher revenues described above and lower SG&A expenses.

•Unallocated corporate activity includes all corporate level selling, general and administrative expenses and other expenses not allocated to the segments. We do not allocate any indirect expenses to the segments. Corporate activity decreased for the three-month period is primarily due to lower SG&A expenses and increased gains from foreign currency transactions, partially offset by higher interest expenses, net. Corporate activity increased for the nine-month period primarily due to higher interest expenses, net partially offset by higher foreign currency transaction gains.

Liquidity and Capital Resources

Overview

Since inception, we have funded operations primarily through cash flow from operations, advances from Federal ESPC projects, our senior secured credit facility, our second lien term loan and various forms of other debt and equity offerings. See Note 8 “Debt and Financing Lease Liabilities” for additional information.

Working capital requirements can be susceptible to fluctuations during the year due to timing differences between costs incurred, the timing of milestone-based customer invoices and actual cash collections. Working capital may also be affected by seasonality, growth rate of revenue, long lead-time equipment purchase patterns, advances from Federal ESPC projects, and payment terms for payables relative to customer receivables.

We expect to incur additional expenditures in connection with the following activities:

•equity investments, project asset acquisitions and business acquisitions that we may fund from time to time

•capital investment in current and future energy assets

•material, equipment, and other expenditures for large projects

We regularly monitor and assess our ability to meet funding requirements. We believe that cash and cash equivalents, working capital and availability under our revolving senior secured credit facility, combined with our right (subject to lender consent) to increase our revolving credit facility by $100.0 million, plus asset sales, tax equity transfers, ITC sales, and our general access to credit and equity markets, will be sufficient to fund our operations through at least November 2025 and thereafter.

We continue to evaluate and take action, as necessary, to preserve adequate liquidity and ensure that our business can continue to operate and that we can meet our capital and debt service requirements. This may include limiting discretionary spending across the organization and re-prioritizing our capital projects amid times of political unrest, the duration of supply challenges, the rate and duration of the inflationary pressures, and other events affecting our liquidity. For example, recent increases in inflation and interest rates have impacted overall market returns on assets. We have therefore been particularly prudent in our capital commitments over the past few quarters, ensuring that our assets in development continue to align with our hurdle rates.

August 2023 Purchase and Sale Agreement

The purchase price for phase 1 was $88.0 million, of which $5.0 million was paid in cash, $46.7 million was financed through a seller’s note, and we assumed a construction loan on the energy asset project for $36.3 million. We also acquired $11.2 million cash. During the year ended December 31, 2023, we paid $18.4 million in principal on the seller’s note. In January 2024, the purchase price was increased by $1.1 million, and we paid off the seller’s note in the amount of $29.4 million. We agreed to sell

Table of Contents

back to the seller investment tax credits for the project acquired as part of this transaction for the fair market value of these credits in early in 2024 and received $21.0 million in cash during March 2024.

The seller’s note bore interest at a fixed rate of 5.0% per annum and the principal and interest was due in August 2024. The note was amended on August 2, 2024 to provide that it be paid in four installments through December 16, 2024 and bears interest at a rate of 5.0% per annum through August 2, 2024 and a rate of 9.0% per annum thereafter. The note was also amended on September 17, 2024 to provide that it be paid in three installments through November 1, 2024. In September 2024, we paid a portion of the seller’s note in the amount of $12.5 million.

Senior Secured Credit Facility

•principal installments on the DDTLA of $5 million when we entered into the amendment and $8 million each on or before May 15, 2024, June 15, 2024, and July 15, 2024, with the balance of $7,500 due on August 15, 2024,

•the date by which we shall use commercially reasonable efforts to raise $100 million in equity or subordinated debt financing was changed from April 15, 2024 to May 15, 2024.

As of September 30, 2024, the balance on the senior secured term loans was $71.3 million, the balance on the senior secured revolving credit facility was $106.5 million, and we had funds available of $67.1 million.

June 2024, Second Lien Term Loan, due June 28, 2029

On June 28, 2024, we entered into a second lien credit agreement which provided a term loan in a principal amount of $100.0 million with a maturity date of June 28, 2029. The term loan bears an interest rate of SOFR (5.309% at September 30, 2024), and an applicable margin of 5.875% per annum. Interest is payable quarterly and unpaid interest and principal is due in the aggregate on June 28, 2029. As of September 30, 2024, we incurred $5.1 million in lenders fees and debt issuance costs. Proceeds from this term loan in the amount of $82.1 million and $15.0 million were used to pay towards our credit facility and the outstanding portion of the DDTLA, respectively, under our senior secured credit facility at closing.

Energy Asset Financing

Energy Asset Construction Facilities, Financing Facilities, and Term Loans

We have entered into a number of construction and term loan agreements for the purpose of constructing and owning certain renewable energy plants. The physical assets and the operating agreements related to the renewable energy plants are generally owned by wholly owned, single member “special purpose” subsidiaries of Ameresco. These construction and term loans are structured as project financings made directly to a subsidiary, and upon commercial operation and achieving certain milestones in the credit agreement, the related construction loan converts into a term loan. While we are required under generally accepted accounting principles (“GAAP”) to reflect these loans as liabilities on our condensed consolidated balance sheets, they are generally non-recourse and not direct obligations of Ameresco, Inc., except to the extent of completion guarantees and EPC contracts and certain equity contribution obligations under our August 2023 Construction Credit Facility as described in more detail below.

Our project financing facilities contain various financial and other covenant requirements which include debt service coverage ratios and total funded debt to EBITDA, as defined in the facilities. Any failure to comply with the financial or other covenants of our project financings would result in inability to distribute funds from the wholly-owned subsidiary to Ameresco, Inc. or

Table of Contents

constitute an event of default in which the lenders may have the ability to accelerate the amounts outstanding, including all accrued interest and unpaid fees.

Material energy asset construction and term loan financings during the nine months ended September 30, 2024 were as follows:

•April 2024, Term Notes, due June 30, 2042 - On April 5, 2024, an omnibus amendment and reaffirmation agreement was executed with reference to the note purchase and private shelf agreement, dated as of July 27, 2021, and two new series B notes (first lien and second lien) were authorized in the amounts of $92.5 million and $12.7 million, with a maturity date of June 30, 2042. Gross proceeds from the initial issuance on April 5, 2024 were $83.3 million and $12.3 million with the remainder to be issued upon achieving certain permitting-related and other administrative conditions. Proceeds from these notes in the amount of $86.5 million were used to pay a portion of the August 2023 construction credit facility.

•October 2022, Financing Facility, 6.70% - we drew down an additional $38.3 million.

•August 2023, Construction Credit Facility, 9.16% - we drew down an additional $137.0 million.

Net proceeds from energy asset construction facilities and term loans during the nine months ended September 30, 2024 totaled $301.4 million.

Sale-leasebacks and Financing Leases

During the nine months ended September 30, 2024, we sold and leased back three energy assets for $24.3 million in cash proceeds under our master sale-leaseback agreements.

On April 18, 2023, in connection with the April 2023, Construction Credit Facility, we entered into lease agreements with two investors and on August 14, 2024 we sold and leased back an energy asset for $234.8 million, of which 50% was allocated to each investor under these agreements. One lease has an expiration date of August 14, 2034 with an option to extend to August 14, 2044 while the other as an expiration date of August 14, 2044. At closing, we incurred $2.8 million in lenders fees and debt issuance costs. In August 2024, we used $140.8 million of the proceeds to pay off the April 2023, Construction Credit Facility. As of September 30, 2024, we have no available funds remaining under this lending commitment.

Federal ESPC Liabilities

We have arrangements with certain third-parties to provide advances to us during the construction or installation of projects for certain customers, typically federal governmental entities, in exchange for our assignment to the lenders of our rights to the long-term receivables arising from the ESPCs related to such projects. These financings totaled $520.5 million as of September 30, 2024. Under the terms of these financing arrangements, we are required to complete the construction or installation of the project in accordance with the contract with our customer, and the liability remains on our condensed consolidated balance sheets until the completed project is accepted by the customer.

We are the primary obligor for financing received, but only until final acceptance of the work by the customer. At this point recourse to us ceases and the ESPC receivables are transferred to the investor. The transfers of receivables under these agreements do not qualify for sales accounting until final customer acceptance of the work, so the advances from the investors are not classified as operating cash flows. Cash draws that we received under these ESPC agreements were $129.4 million during the nine months ended September 30, 2024, and are recorded as financing cash inflows. The use of the cash received under these arrangements is to pay project costs classified as operating cash flows and totaled $110.8 million during the nine months ended September 30, 2024. Due to the manner in which the ESPC contracts with the third-party investors are structured, our reported operating cash flows are materially impacted by the fact that operating cash flows only reflect the ESPC contract expenditure outflows and do not reflect any inflows from the corresponding contract revenues. Upon acceptance of the project by the federal customer the ESPC receivable and corresponding ESPC liability are removed from our condensed consolidated balance sheets as a non-cash settlement.

Table of Contents

Cash Flows

The following table summarizes our cash flows from operating, investing, and financing activities:


	Nine Months Ended September 30,
(In Thousands)	2024		2023		$ Change
Cash flows from operating activities	$	99,222	$	(40,421)	$	139,643
Cash flows from investing activities	(355,392)		(465,193)		109,801
Cash flows from financing activities	305,058		532,401		(227,343)
Effect of exchange rate changes on cash	1,827		(980)		2,807
Total net cash flows	$	50,715	$	25,807	$	24,908

Our service offering also includes the development, construction, and operation of small-scale renewable energy plants. Small-scale renewable energy projects, or energy assets, can either be developed for the portfolio of assets that we own and operate or designed and built for customers. Expenditures related to projects that we own are recorded as cash outflows from investing activities. Expenditures related to projects that we build for customers are recorded as cash outflows from operating activities as cost of revenues.

Cash Flows from Operating Activities

Our cash flows from operating activities during the nine months ended September 30, 2024 increased over the same period last year primarily due to increases in cash flows of $121.4 million in unbilled revenue (costs and estimated earnings in excess of billings) due to the timing of when certain projects are invoiced, including our SCE battery storage project when compared to the prior year period, $26.0 million in prepaid expenses and other current assets, $52.0 million in accounts payable, accrued expenses and other current liabilities, $32.8 million in Federal ESPC receivable, and $32.1 million in deferred revenue (billings in excess of cost and estimated earnings), partially offset by decreases of $122.2 million in accounts receivable and $14.8 million in net income.

Cash Flows from Investing Activities

During the nine months ended September 30, 2024 we made capital investments of $341.8 million in new energy assets and $13.6 million in major maintenance of energy assets compared to $445.5 million and $8.0 million, respectively, in 2023.

We currently plan to invest approximately $20 million to $75 million in additional capital expenditures during the remainder of 2024, principally for the construction or acquisition of new renewable energy plants, the majority of which we expect to fund with project finance debt.

Cash Flows from Financing Activities

Our primary sources of financing for the nine months ended September 30, 2024 were net proceeds from long-term debt of $653.5 million, net proceeds received from Federal ESPC projects and energy asset receivable financing arrangements of $134.6 million, contributions from a non-controlling interest of $33.8 million, offset by payments on long-term debt of $441.6 million, net, payments on the seller’s note for the BCE phase 1 and 2 acquisitions of $41.9 million, and net payments on our senior secured revolving credit facility of $33.4 million.

Our primary sources of financing for the nine months ended September 30, 2023 were net proceeds from long-term debt of $720.0 million, net proceeds received from Federal ESPC projects and energy asset receivable financing arrangements of $119.8 million, partially offset by payments on long-term debt of $162.7 million and net payments on our senior secured revolving credit facility of $115.0 million.

We currently plan additional project financings of approximately $50 million during the remainder of 2024 to fund the construction or the acquisition of new renewable energy plants as discussed above.

Critical Accounting Estimates

Preparing our condensed consolidated financial statements in accordance with GAAP involves us making estimates and assumptions that affect reported amounts of assets and liabilities, net sales and expenses, and related disclosures in the accompanying notes at the date of our financial statements. We base our estimates on historical experience, industry and market trends, and on various other assumptions that we believe to be reasonable under the circumstances. However, by their nature,

Table of Contents

estimates are subject to various assumptions and uncertainties, and changes in circumstances could cause actual results to differ from these estimates, sometimes materially.

Income Taxes

We have reviewed all tax positions taken as of September 30, 2024 and there were no additional uncertain tax positions taken during the three and nine months ended September 30, 2024. We believe our current tax reserves are adequate to cover all known tax uncertainties.

Other than as noted above, there have been no material changes in our critical accounting estimates from those disclosed in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations of our 2023 Form 10-K. In addition, refer to Note 2 “Summary of Significant Accounting Policies” for updates to critical accounting policies.

Recent Accounting Pronouncements

See Note 2, “Summary of Significant Accounting Policies” for a discussion of recent accounting pronouncements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

As of September 30, 2024, there have been no significant changes in market risk exposures that materially affected the quantitative and qualitative disclosures as described in Item 7A to our 2023 Form 10-K.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and principal financial officer, 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 the end of the period covered by this quarterly report, or the evaluation date. Disclosure controls and procedures are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosures. Our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Our management, after evaluating the effectiveness of our disclosure controls and procedures as of the evaluation date, concluded that as of the evaluation date, our disclosure controls and procedures were effective at a reasonable assurance level.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Table of Contents

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary conduct of our business, we are subject to periodic lawsuits, investigations, and claims. Although we cannot predict with certainty the ultimate resolution of such lawsuits, investigations and claims against us, we do not believe that any currently pending or threatened legal proceedings to which we are a party will have a material adverse effect on our business, results of operations or financial condition.

For additional information about certain proceedings, please refer to Note 10, Commitments and Contingencies, to our condensed consolidated financial statements included under Part I, Item 1 of this Quarterly Report on Form 10-Q, which is incorporated into this item by reference.

Item 1A. Risk Factors

Our business is subject to numerous risks, a number of which are described below and under “Risk Factors” in Part I, Item 1A of our 2023 Form 10-K and Part II, Item 1A of our Q2 2024 Form 10-Q.

You should carefully consider these risks together with the other information set forth in this report, which could materially affect our business, financial condition and future results. The risks described in Part I, Item 1A of our 2023 Form 10-K and updated in Part II, Item 1A of our Q2 2024 Form 10-Q are not the only risks we face. Risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and operating results.

Item 2. Unregistered Sales of Equity and Use of Proceeds

Stock Repurchase Program

We did not repurchase any shares of our common stock under our stock repurchase program authorized by the Board of Directors on April 27, 2016 (the “Repurchase Program”) during the three months ended September 30, 2024. Under the Repurchase Program, we are authorized to repurchase up to $17.6 million of our Class A common stock. As of September 30, 2024, there were shares having a dollar value of approximately $5.9 million that may yet be purchased under the Repurchase Program.

Item 5. Other Information

Director and Officer Trading Arrangements

A portion of the compensation of our directors and officers (as defined in Rule 16a-1(f) under the Exchange Act) is in the form of equity awards and, from time to time, directors and officers engage in open-market transactions with respect to the securities acquired pursuant to such equity awards or other shares of Class A common stock held by such individuals. Transactions in our securities by directors and officers are required to be made in accordance with our insider trading policy, which requires that the transactions be in accordance with applicable U.S. federal securities laws that prohibit trading while in possession of material nonpublic information. Rule 10b5-1 under the Exchange Act provides an affirmative defense that enables directors and officers to prearrange transactions in a company’s securities in a manner that avoids concerns about initiating transactions while in possession of material nonpublic information.

The following table describes contracts, instructions or written plans for the sale or purchase of our Class A common stock adopted by our directors and officers during the quarter ended September 30, 2024, that are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a “Rule 10b5-1 trading arrangement”):


Name (Title)	Action Taken (Date of Action)	Duration of Trading Arrangement	Aggregate Number of Securities
Nickolaus Stavropoulos, Director	Adoption: 9/6/2024	Until September 6, 2025 or such earlier date upon which all transactions are completed or expire without execution	Sale of up to 54,000 shares

Table of Contents

Item 6. Exhibits

Exhibit Index

Exhibit
Number

Description

31.1*

Principal Executive Officer Certification required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2*

Principal Financial Officer Certification required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1**

Certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101*

The following condensed consolidated financial statements from Ameresco, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2024, formatted in Inline XBRL (Extensible Business Reporting Language): (i) Condensed Consolidated Balance Sheets (ii) Condensed Consolidated Statements of Income, (iii) Condensed Consolidated Statements of Comprehensive Income, (iv) Condensed Consolidated Statement of Changes in Redeemable Non-Controlling Interests and Stockholders’ Equity, (v) Condensed Consolidated Statements of Cash Flows, and (vi) Notes to Condensed Consolidated Financial Statements.

104*

Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

*Filed herewith.

**Furnished herewith.

+ Identifies a management contract or compensatory plan or arrangement in which an executive officer or director of Ameresco participates.

Table of Contents

SIGNATURES

Pursuant to the 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.

AMERESCO, INC.

Date:

November 8, 2024

By:

/s/ Mark Chiplock

Mark Chiplock

Executive Vice President and Chief Financial Officer
(duly authorized and principal financial officer)