FRAMINGHAM, Mass. & EDMONTON, Alberta--(BUSINESS WIRE)--Ameresco, Inc., (NYSE: AMRC), a leading cleantech integrator specializing in energy efficiency and renewable energy, announced a contract to design, engineer and implement energy upgrades across 124 buildings covering 4.6 million square feet at Canadian Forces Base in Edmonton, Canada. The energy conservation measures include the installation of LED lighting, boiler plant and heating system upgrades, converting fuel sources from natural gas to electric ...