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Maryland Power Plants
Utility-scale generators of 1 megawatt or more in Maryland, as of August 2026 (EIA-860M).
- Operating capacity
- 13.6 GW
- Largest plant
- Calvert Cliffs Nuclear Power Plant
- 1.9 GW
- Planned through 2028
- 13.9 MW
- Generation, 2023
- 36.0 TWh
Capacity by fuel
Operating nameplate capacity
- Natural gas6.3 GW 46.6%
- Nuclear1.9 GW 13.6%
- Petroleum1.7 GW 12.5%
- Solar1.4 GW 10.2%
- Coal1.4 GW 10.1%
- Hydroelectric551 MW 4.0%
- Wind245 MW 1.8%
- Biomass155 MW 1.1%
- Battery storage12.3 MW 0.1%
Electricity generated, 2023
Net generation by fuel from EPA eGRID. CO2 output rate 520 lb/MWh
- Natural gas15.3 TWh 42.6%
- Nuclear15.0 TWh 41.6%
- Hydroelectric1.8 TWh 5.1%
- Coal1.7 TWh 4.7%
- Solar936 GWh 2.6%
- Wind482 GWh 1.3%
- Biomass322 GWh 0.9%
- Other312 GWh 0.9%
- Petroleum64 GWh 0.2%
Largest power plants
Top 150 by operating capacity. See counties below for every plant
Swipe the table sideways to see more columns.
Planned and under construction
Largest planned additions, including expansions of operating plants
Swipe the table sideways to see more columns.
| Plant | Planned | Operating now |
|---|---|---|
| Ncbp One, LLCPrince Georges | 2.5 MW | None yet |
| MDD109-Ncbp Bldg 11-ManekinPrince Georges | 2.4 MW | None yet |
| NCBP SevenPrince Georges | 2.4 MW | None yet |
| City of BowiePrince Georges | 2.0 MW | 2.0 MW |
| 100a Swiss Dale FarmCecil | 2.0 MW | None yet |
| Ncbp Ten, LLCPrince Georges | 1.4 MW | None yet |
| Ncbp Twelve, LLCPrince Georges | 1.2 MW | None yet |
Power plants by county
Operating plants located in each county
- Allegany County2
- Anne Arundel County12
- Baltimore city11
- Baltimore County24
- Calvert County2
- Caroline County2
- Carroll County3
- Cecil County9
- Charles County5
- Dorchester County8
- Frederick County9
- Garrett County22
- Harford County19
- Howard County24
- Kent County6
- Montgomery County15
- Prince George's County34
- Queen Anne's County9
- Somerset County7
- Talbot County3
- Washington County15
- Wicomico County9
- Worcester County3
Capacity is the nameplate rating of generators that are operating or on standby. Solar capacity is in alternating current (AC). Batteries are counted by power (MW), not by stored energy (MWh).
Frequently asked questions
- How much power plant capacity does Maryland have?
- Maryland has 13.6 GW of operating utility-scale capacity as of August 2026.
- What is the largest power plant in Maryland?
- Calvert Cliffs Nuclear Power Plant is the largest at 1.9 GW of nuclear capacity.
- Where does Maryland get its electricity?
- Power plants in Maryland generated 36.0 TWh in 2023. The mix is shown above. Power also flows between states, so what plants in a state generate is not the same as what its customers use.
Source: U.S. Energy Information Administration, Form EIA-860M; U.S. EPA eGRID · Data for August 2026