Ameresco to Announce Second-Quarter 2010 Financial Results on August 12, 2010

FRAMINGHAM, Mass.--(BUSINESS WIRE)-- Ameresco, Inc. (NYSE: AMRC), a leading provider of comprehensive energy solutions today announced that the company will release its second-quarter financial results before the market opens on Thursday, August 12, 2010 and host a conference call that day at 10:30 a.m. ET.

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 the company's business outlook and strategy.

Participants may access by dialing domestically (888) 679-8034 or internationally (617) 213-4847. The passcode is 26427295. Those who wish to listen only to the conference call webcast may visit the "Investor Relations" section of the company's website at www.ameresco.com. Participants are advised to dial into the call at least ten minutes prior to the call to register. Pre-Registration for the call is available at:

https://www.theconferencingservice.com/prereg/key.process?key=PYPFH9J34.

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.

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 construction and operation of renewable energy plants. With corporate headquarters located in Framingham, MA, Ameresco has 54 offices in 29 states and four Canadian provinces. For more information, visit www.ameresco.com.

    Source: Ameresco, Inc.

Released August 5, 2010