FRAMINGHAM, Mass. & COLLEGE PARK, Md.–(BUSINESS WIRE)– Ameresco, Inc., (NYSE: AMRC), a leading cleantech integrator specializing in energy efficiency and renewable energy, today announced that construction is underway for a $33 million Energy Savings Performance Contract (ESPC) at the U.S. National Archives and Records Administration (NARA) sites in College Park, Maryland, and Washington, DC. The project is designed to enhance energy efficiency across NARA's facilities, leveraging Ameresco's innovative solutions to achieve significant cost savings and environmental benefits.