Power Plants in Maryland

Maryland's generating fleet holds 13.3 gigawatts of nameplate capacity across 234 plants, ranking 35th among the 51 state-level fleets counting down from the largest. This figure represents what the equipment could produce running flat out, not what it actually generates — a megawatt of solar and a megawatt of nuclear appear identical here but produce very different amounts of electricity over a year.

Natural gas dominates the fleet at 49.4% of capacity with 15 plants, followed by nuclear at 13.9% from a single plant. Coal provides 10.3%, solar 8.1%, and other fuels comprise the remainder, including hydro at 4.1%, wind at 1.8%, and battery storage under 1%. The largest installation is Calvert Cliffs Nuclear Power Plant with 1,850 megawatts, followed by Chalk Point Power at 1,825 megawatts of natural gas capacity. Brandon Shores contributes 1,370 megawatts from coal, while Wildcat Point Generation Facility and Key, both natural gas facilities coming online in 2018, add 1,114 and 831 megawatts respectively.

The fleet spans from Conowingo, first online in March 1928, to TPE MD PR232, which came online in May 2026. This range captures nearly a century of generating equipment, with the oldest continuing to serve alongside the newest additions to the system.