Maryland nets 440 MW/1,760 MWh in first bulk energy storage procurement

Maryland has picked the first two big battery storage projects under a 2025 state law that requires the state to line up 1.6 gigawatts of grid-scale energy storage. The winners are a 400 MW/1,600 MWh project from Flatiron Energy at the Chalk Point power plant site in Prince George's County, and a 40 MW/160 MWh project from REV Renewables on a reclaimed coal mine in Garrett County. Together they add up to 440 MW and 1,760 megawatt-hours of storage, short of the state's 800-MW goal for this first round.

For an average Maryland residential customer, the combined cost of these two projects works out to just under 7 cents a month over a 15-year contract. The projects are meant to help the regional grid operator, PJM, handle a capacity shortage that has kept wholesale power prices pinned at their price cap, a pressure that can show up in electric bills across the region.

This is a wholesale, grid-level procurement, not a program homeowners sign up for or get a rebate from. It does not change what's available for home energy upgrades. The state plans to open a second round of bidding by January 2027, with awards due by October 2027, and officials expect many more project proposals this time. If you live in Maryland, this is mostly background on where your electricity is headed, not something that affects your own home directly.