Power Plants in Maryland

Maryland's generating fleet holds 13.6 gigawatts of nameplate capacity as of August 2026, ranking 35th of the 50 states and DC by total size. Natural gas dominates the mix at 48.3% of state capacity across 20 plants, while nuclear provides 13.6% from a single facility. Coal and other fuels each supply substantial shares, at 10% and 12% respectively. Solar has grown to 10.3% of capacity spread across 209 plants, while hydro, wind, and battery storage together make up the remainder.

The largest plants by capacity are Calvert Cliffs Nuclear Power Plant at 1,850 megawatts, Chalk Point Power at 1,825 megawatts on natural gas, and Brandon Shores at 1,370 megawatts on coal. Wildcat Point Generation Facility, a natural gas plant, adds 1,114 megawatts, and Key rounds out the five largest at 831 megawatts on natural gas. Together these account for roughly two-thirds of the state's total capacity.

The fleet spans more than a century of power generation. Deep Creek, the oldest plant still listed, came online in July 1925. The newest addition is Morgnec Solar, which entered service in August 2026. The three largest plants by individual capacity—the nuclear station, Chalk Point, and Brandon Shores—range from 1967 to 1984 in their startup dates.