The four utility-scale battery storage pilot projects totaling 16 MW are the largest projects of their kind in Virginia. The projects were filed with the State Corporation Commission (SCC) for approval and are enabled by the Grid Transformation & Security Act of 2018, which allows Dominion Energy to invest in up to 30 MW of battery storage pilot projects. As Dominion Energy continues to increase its solar fleet the company is looking for new and innovative ways to store the renewable energy it produces and maintain reliable service to customers.
"These pilot projects will enable Dominion Energy to better understand how best to deploy batteries to help overcome the inherent fluctuation of wind and solar generation sources," said Mark D. Mitchell, vice president – generation construction
The four proposed Central Virginia-based lithium-ion projects will cost approximately $33 million to construct and will provide key information on distinct use cases for batteries on the energy grid. Pending SCC approval, the pilots would be evaluated over a five-year period once operational as currently expected in December 2020.