The United States Marine Corps Recruit Depot Parris Island selected Ameresco in 2015 to deploy combined heat and power (CHP) and solar photovoltaic (PV) generation assets and to integrate them with a battery energy storage system (BESS) and a microgrid control system (MCS) capable of fast load shedding. Together with the improvements outlined below, this comprehensive project will further the Marine Corps Installation Command mission to ensure a reliable, secure energy supply and reduce lifecycle operating costs of Marine Corps facilities while managing future commodity price volatility.
“This ESPC project is probably the most comprehensive ESPC ever entered into by the Navy, involving 121 buildings (3.1 million square feet total) and 20 energy conservation measures (ECMs), This will result in MCRD Parris Island reducing their energy consumption by 384,962 million BTUs (79%) and water consumption by 74.6 million gallons (27%) annually. I think the team at Parris Island, with this ESPC, may have just redefined a ‘deep energy retrofit!”
– Daniel T. Morgan
NAVFAQ EXWC ESPC Program Lead
Million Square Feet
MW PV Capacity
ESPC Energy Project Size
ESPC Annual Energy Savings
This state-of-the-art infrastructure will provide Parris Island the capability to maintain reliable operations in the event of loss of utility services. This comprehensive project also features solar photovoltaic (PV) arrays that will add another 6.7 MW of on-site generation capacity. The PV systems will displace the purchase of electricity from the serving utility, and the carport PV system provides shading at the primary parking area for visiting family members. Together with demand reduction ECMs, these improvements will result in:
75% reduction in utility energy demand
25% total water reduction
10 MW onsite electrical generation
Combined annual carbon reduction of 37,165 metric tons of CO2
Ameresco replaced the existing end-of-life steam plant with a new, fully automated, natural-gas fueled CHP plant capable of producing 3.5 MW of electricity and all of the steam required for the entire installation. Ameresco will deploy integrated renewable energy solutions, including solar PV, domestic hot water system upgrades, a battery energy storage system (BESS), and a microgrid control system (MCS) capable of fast load shedding. The solar PV measure consists of a 1.6 MW PV carport system and a 5.1 MW ground mount system. Ameresco will assume the Operations and Maintenance (O&M) and Repair and Replacement (R&R) responsibilities for the installed ECMs, with the exception of the operations of the CHP plant.