RES commissions 12 MW battery project in Virginia

RES Group has completed the Scott Battery Energy Storage System (BESS) pilot project in Virginia, USA on behalf of Dominion Energy Virginia, a unit of Dominion Energy. 

The 12 MW/48 MWh project includes an Alternating Current (AC) coupled Battery Energy Storage System and two Direct Current (DC) coupled Battery Energy Storage Systems that were retrofitted to an existing solar facility. The AC-coupled BESS system has a capacity of 10 megawatts and can run for a period of 4 hours. Its goal is to match peak load demand with peak production. 

The two DC-coupled batteries are each an independent 1 megawatt, a 4-hour system that is charged by capturing clipped energy directly from the existing solar panels. Clipped energy is energy that would otherwise be lost when a solar panel's output potential exceeds the amount of power an inverter can convert.