Power plants and the grid in Maryland
Maryland has 252 power plants with 12.4 GW of capacity, natural gas the largest share at 5.8 GW. The map shows 22 data centers in Maryland. Its interconnection queue holds 48 active requests for 5.6 GW.
Capacity by fuel
252 power plants with 12.4 GW of capacity, planned generators left out.
- Natural gas: 5.8 GW from 16 plants (47%)
- Nuclear: 1.7 GW from 1 plant (14%)
- Solar: 1.4 GW from 205 plants (11%)
- Oil: 1.3 GW from 10 plants (11%)
- Coal: 1.3 GW from 1 plant (10%)
- Hydro: 515 MW from 2 plants (4%)
- Wind: 245 MW from 6 plants (2%)
- Biomass: 138 MW from 9 plants (1%)
- Battery storage: 3 MW from 2 plants (under 1%)
Largest plants
- Calvert Cliffs Nuclear Power Plant: Nuclear, 1.7 GW
- Chalk Point Power: Natural gas, 1.6 GW
- Brandon Shores: Coal, 1.3 GW
- Wildcat Point Generation Facility: Natural gas, 991 MW
- Key: Natural gas, 766 MW
- CPV St Charles Energy Center: Natural gas, 733 MW
- Herbert A Wagner: Oil, 702 MW
- Essential Power Rock Springs LLC: Natural gas, 667 MW
- Conowingo: Hydro, 497 MW
- Perryman: Natural gas, 404 MW
Largest plants near Baltimore
- Brandon Shores: Coal, 1.3 GW, 15 km away
- Herbert A Wagner: Oil, 702 MW, 16 km away
- Perryman: Natural gas, 404 MW, 38 km away
- Wheelabrator Baltimore Refuse: Biomass, 61 MW, 4 km away
- Philadelphia: Oil, 60 MW, 5 km away
Planned and under construction
7 generators planned, under construction or testing, 14 MW in all, not counted above.
- Solar: 14 MW
Grid operators
- PJM (ISO or RTO): 252 plants
Data centers
22 data center sites on the map.
- City of Baltimore: 7 sites
- Frederick County: 5 sites
- Montgomery County: 4 sites
- Baltimore County: 3 sites
- Operators with the most sites: Rowan Digital Infrastructure (3), Expedient (2), Lincoln Rackhouse (2), Tierpoint (2), XO Communications (2), Agile (1), AiNET (1), Aligned (1), Atlantech Online, Inc. (1), Atmosphere Data Centers (1)
Interconnection queue
48 active requests to connect 5.6 GW of new generation and storage, and 8 suspended requests, from Lawrence Berkeley National Laboratory's Queued Up data.
- Battery storage: 3.1 GW in 14 requests
- Solar: 2.3 GW in 31 requests
- Natural gas: 99 MW in 2 requests
- Wind: 80 MW in 1 request
Sources
Power plants: EIA-860M (US); NRCan NACEI (Canada, Mexico); WRI GPPD (Mexico); OpenStreetMap via Geofabrik (Canada, Mexico gap fill); USGS USWTDB/USPVDB; EPA eGRID; Natural Earth admin-1; HIFLD control areas; location attributes from WorldPop (R2025A), Global Solar Atlas PVOUT, Global Wind Atlas 4, USFS Wildfire Hazard Potential, the USGS National Seismic Hazard Model and the previous publish's lines and substations; water distances from OpenStreetMap via Geofabrik; gas distances and county queue from the previous publish's EIA gas pipelines and LBNL Queued Up requests; nearest city from Natural Earth populated places; cooling degree days from NOAA NCEI nClimDiv county normals; elevation and slope from the Copernicus DEM GLO-30 (ESA, via AWS Open Data); water stress from WRI Aqueduct 4.0; ozone nonattainment from the EPA Green Book; drought from the U.S. Drought Monitor; tribal land from US Census TIGER/Line. License: ODbL (derivative database; EIA content is public domain, NRCan OGL-Canada, WRI GPPD CC BY 4.0; location attributes from WorldPop, Global Solar Atlas, Global Wind Atlas, LBNL Queued Up and WRI Aqueduct CC BY 4.0, USFS, USGS, EIA, NOAA, EPA, US Census and Natural Earth public domain, Copernicus DEM GLO-30 © DLR e.V. and Airbus Defence and Space GmbH, the U.S. Drought Monitor courtesy of NDMC)
Places gazetteer (cities, airports, regions): Natural Earth populated places; OurAirports; Natural Earth admin-1; Wattlas curated places. License: Public domain
Data centers: Epoch AI (CC BY); OpenStreetMap via the public Overpass API (ODbL, © OpenStreetMap contributors); Ringmast4r Global-Data-Center-Map (custom permissive license, attribution required); location attributes from WorldPop (R2025A), Global Solar Atlas PVOUT, Global Wind Atlas 4, USFS Wildfire Hazard Potential, the USGS National Seismic Hazard Model and the previous publish's lines and substations; gas distances and county queue from the previous publish's EIA gas pipelines and LBNL Queued Up requests; nearest city from Natural Earth populated places; generation within 20 km from the previous publish's plants; cooling degree days from NOAA NCEI nClimDiv county normals; elevation and slope from the Copernicus DEM GLO-30 (ESA, via AWS Open Data); water stress from WRI Aqueduct 4.0; ozone nonattainment from the EPA Green Book; drought from the U.S. Drought Monitor; tribal land from US Census TIGER/Line. License: CC BY; ODbL; custom permissive; WRI Aqueduct CC BY 4.0; USFS, USGS, EIA, NOAA, EPA, US Census and Natural Earth public domain; Copernicus DEM GLO-30 © DLR e.V. and Airbus Defence and Space GmbH; the U.S. Drought Monitor courtesy of NDMC
Interconnection queue requests: Lawrence Berkeley National Laboratory and GridTracker, "Queued Up". License: CC BY 4.0
States and provinces (simplified polygons): Natural Earth 10m admin-1. License: Public domain