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Ameresco to Announce 2010 Full Year and Fourth-Quarter Financial Results on February 17, 2011

On the call, President and Chief Executive Officer George Sakellaris and Vice President and Chief Financial Officer Andrew Spence will discuss Ameresco's financial results as well as provide guidance for fiscal year 2011.

Participants may access by dialing domestically 888.713.4217 or internationally 617.213.4869. The passcode is 69406927. Those who wish to listen only to the conference call webcast may visit the "Investor Relations" section of the company's website. Participants are advised to dial into the call at least ten minutes prior to the call to register.

Pre-Registration for the call is also available at: https://www.theconferencingservice.com/prereg/key.process?key=PXHLF7UUW. Pre-registrants will be issued a pin number to use when dialing into the live call which will provide quick access to the conference by bypassing the operator upon connection.

If you are unable to listen to the live call, the webcast will be archived on the company's website shortly after the call and be available for a year.

About Ameresco, Inc.

Ameresco, Inc. was incorporated in Delaware in April 2000 and is a leading independent provider of comprehensive energy efficiency solutions for facilities throughout North America. Ameresco's solutions include upgrades to a facility's energy infrastructure, and the development, construction and operation of renewable energy plants. With corporate headquarters located in Framingham, MA, Ameresco has 55 offices in 29 states and four Canadian provinces. For more information, visit www.ameresco.com.

Ameresco, Inc.
Investor Relations Contact
Suzanne Messere, 508-598-3044
ir@ameresco.com
or
Media Relations Contact
CarolAnn Hibbard, 508-661-2264
news@ameresco.com