Ameresco, Inc. announced it has been issued a task order to build a site-wide microgrid integrating 10 megawatts (MW) of new onsite generation and a battery energy storage system at Marine Corps Recruit Depot (MCRD) Parris Island, South Carolina, by the Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC). Ameresco will engineer, construct and operate the energy generating assets through a $91.1 million self-funding Energy Savings Performance Contract (ESPC) to provide energy infrastructure upgrades to the 8,095 acre military installation. The company will provide comprehensive energy and water efficiency upgrades to 121 buildings to improve system performance and to reduce operations and maintenance costs at Parris Island. The installation of new onsite energy systems will offset electricity purchases from the grid and will provide energy security and resiliency. Ameresco will replace the existing end-of-life steam plant with a new fully automated natural gas-fueled Combined Heat and Power (CHP) plant capable of producing 3.5 MW of electricity and the full steam load required for MCRD’s operations. Ameresco will install a microgrid including 10 MW of new onsite electrical generation to support the site’s critical energy load and mission-critical systems. The microgrid system will include the new CHP plant, 6.7 MW-DC of solar photovoltaic generation assets integrated with an 8.0 MWh battery energy storage system and a microgrid control system capable of optimized dispatch and fast load shedding. Construction on the project will begin during the spring of 2017 and is scheduled to be completed by the summer of 2019. All buildings and facilities will remain operational during the construction period.