    <SEC-DOCUMENT>0001488139-25-000086-index.html : 20250424
    <SEC-HEADER>0001488139-25-000086.hdr.sgml : 20250424
    <ACCEPTANCE-DATETIME>20250424161142
    ACCESSION NUMBER:		0001488139-25-000086
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20241231
    FILED AS OF DATE:		20250424
    DATE AS OF CHANGE:		20250424
    EFFECTIVENESS DATE:		20250424

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Ameresco, Inc.
    		CENTRAL INDEX KEY:			0001488139
    		STANDARD INDUSTRIAL CLASSIFICATION:	CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700]
    		ORGANIZATION NAME:           	05 Real Estate & Construction
    		EIN:				043512838
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34811
    		FILM NUMBER:		25867442

    	BUSINESS ADDRESS:
    		STREET 1:		111 SPEEN STREET
    		CITY:			FRAMINGHAM
    		STATE:			MA
    		ZIP:			01701
    		BUSINESS PHONE:		508-661-2200

    	MAIL ADDRESS:
    		STREET 1:		111 SPEEN STREET
    		CITY:			FRAMINGHAM
    		STATE:			MA
    		ZIP:			01701
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>amrc2024annualreportfiling.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: amrc2024annualreportfiling.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>