Maryland's installed electrical capacity (utility and nonutility) was 11.8 million kW in 1999; production of electricity exceeded 51.7 billion kWh in the same year. More than 99% of the generating capacity was privately owned, and about 57% of the state's electricity was produced by coal-fired plants. The Calvert Cliffs Nuclear Plant in Lusby, operated by Baltimore Gas and Electric, had a capacity of 1,685 MW in 2001; in 1999 it produced about 26% of the state's electricity. In 2000 Maryland's total per capita energy consumption was 287 million Btu (72.3 million kcal), ranking it 40th among the 50 states.
Coal, Maryland's lone fossil fuel resource, is mined in Allegheny and Garrett counties, along the Pennsylvania border. Recoverable reserves in 2000 were estimated at 72 million tons of bituminous coal; the 2000 output of 16 coal mines totaled 4.5 million tons. Marketed production of natural gas totaled 32 million cu ft (0.9 billion cu m) in 2001.