Directory of Power Plants in Maryland
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Fair Wind | Fair Wind Power Partners, LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 80.2 GWh | Oct 2015 | Jun 2026 | Wind |
| UMCP CHP Plant | Trigen-Cinergy Solutions College Park | College Park, MD | PJM Interconnection, LLC (PJM) | 84.4 GWh | May 2003 | Dec 2024 | Natural Gas : 90.0% Distillate Fuel Oil : 10.0% |
| Central Utility Plant at White Oak | GSA Metropolitan Service Center | Silver Spring, MD | PJM Interconnection, LLC (PJM) | 95.5 GWh | Oct 2003 | Jun 2026 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| Roth Rock Wind Farm LLC | Roth Rock Wind Farm LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 101.0 GWh | Jul 2011 | Jun 2026 | Wind |
| Fourmile Ridge | Fourmile Wind Energy, LLC | Frostburg, MD | PJM Interconnection, LLC (PJM) | 110.7 GWh | Nov 2014 | Jun 2026 | Wind |
| NIH Cogeneration Facility | National Institutes of Health | Bethesda, MD | PJM Interconnection, LLC (PJM) | 120.4 GWh | Jun 2004 | Jun 2026 | Natural Gas |
| CPV Backbone Solar | CPV Backbone Solar, LLC | Swanton, MD | PJM Interconnection, LLC (PJM) | 122.2 GWh | Nov 2025 | Jun 2026 | Solar |
| Jones Farm Solar | Urban Grid Solar | Millington, MD | PJM Interconnection, LLC (PJM) | 129.7 GWh | May 2025 | Jun 2026 | Solar |
| Great Bay Solar 1 | Great Bay Solar I LLC | Princess Anne, MD | PJM Interconnection, LLC (PJM) | 136.5 GWh | Feb 2018 | Jun 2026 | Solar |
| Bluegrass Solar | MN8 Energy LLC | Church Hill, MD | PJM Interconnection, LLC (PJM) | 154.6 GWh | Sep 2022 | Jun 2026 | Solar |
| Dans Mountain | Dans Mountain Wind Force, LLC | Frostburg, MD | PJM Interconnection, LLC (PJM) | 165.1 GWh | Apr 2025 | Jun 2026 | Wind |
| Montgomery County Resource Recovery | Covanta Montgomery, Inc. | Dickerson, MD | PJM Interconnection, LLC (PJM) | 231.0 GWh | Apr 1995 | Jun 2026 | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.2% |
| Criterion | Criterion Power Partners LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 262.0 GWh | Nov 2010 | Jun 2026 | Wind |
| Wheelabrator Baltimore Refuse | Wheelabrator Environmental Systems | Baltimore, MD | PJM Interconnection, LLC (PJM) | 312.3 GWh | Oct 1984 | Jun 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Dickerson Power | Dickerson Power, LLC | Dickerson, MD | PJM Interconnection, LLC (PJM) | 317.1 GWh | May 1959 | Jun 2026 | Natural Gas : 87.7% Distillate Fuel Oil : 12.3% |
| Herbert A Wagner | H.A. Wagner LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 346.1 GWh | Jan 1956 | Jun 2026 | Distillate Fuel Oil : 92.8% Natural Gas : 7.2% |
| Perryman | Constellation Power Source Generation, LLC | Harford County, MD | PJM Interconnection, LLC (PJM) | 375.7 GWh | Dec 1971 | Jun 2026 | Natural Gas : 72.7% Distillate Fuel Oil : 27.3% |
| Essential Power Rock Springs LLC | Essential Power Operating Services LLC | Rising Sun, MD | PJM Interconnection, LLC (PJM) | 407.7 GWh | May 2003 | Dec 2025 | Natural Gas |
| Brandywine Power Facility | Alpha Generation Brandywine, LLC | Brandywine, MD | PJM Interconnection, LLC (PJM) | 816.7 GWh | Jul 1996 | May 2026 | Natural Gas : 95.8% Distillate Fuel Oil : 4.2% |
| Conowingo | Constellation Power, Inc | Darlington, MD | PJM Interconnection, LLC (PJM) | 1.4 TWh | Feb 1928 | Jun 2026 | Water |
| Chalk Point Power | Chalk Point Power, LLC | Aquasco, MD | PJM Interconnection, LLC (PJM) | 2.7 TWh | Jul 1964 | Jun 2026 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| Brandon Shores | Brandon Shores LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 3.0 TWh | Apr 1984 | Jun 2026 | Bituminous Coal : 98.9% Distillate Fuel Oil : 1.1% |
| Wildcat Point Generation Facility | Old Dominion Electric Coop | Conowingo, MD | PJM Interconnection, LLC (PJM) | 3.2 TWh | Mar 2018 | Jun 2026 | Natural Gas |
| CPV St Charles Energy Center | CPV Maryland LLC | Waldorf, MD | PJM Interconnection, LLC (PJM) | 3.8 TWh | Jan 2017 | Jun 2026 | Natural Gas |
| Key | Parkway Generation Keys Energy Center LLC | Brandywine, MD | PJM Interconnection, LLC (PJM) | 4.4 TWh | Jun 2018 | Jun 2026 | Natural Gas |
| Calvert Cliffs Nuclear Power Plant | Constellation Nuclear | Lusby, MD | PJM Interconnection, LLC (PJM) | 14.9 TWh | Apr 1975 | Jun 2026 | Nuclear |
Browse Power Plants By Maryland Counties
Figures are based on June 2026 generation numbers.| County | State Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Talbot County, MD | # 23 | 3 | 13.4 GWh |
| Kent County, MD | # 22 | 6 | 17.3 GWh |
| Carroll County, MD | # 21 | 4 | 24.4 GWh |
| Worcester County, MD | # 20 | 5 | 34.3 GWh |
| Wicomico County, MD | # 19 | 11 | 44.6 GWh |
| Caroline County, MD | # 18 | 2 | 55.1 GWh |
| Baltimore County, MD | # 17 | 31 | 70.0 GWh |
| Frederick County, MD | # 16 | 11 | 71.2 GWh |
| Howard County, MD | # 15 | 26 | 74.2 GWh |
| Washington County, MD | # 14 | 20 | 78.1 GWh |
| Dorchester County, MD | # 13 | 8 | 103.8 GWh |
| Somerset County, MD | # 12 | 7 | 159.8 GWh |
| County | State Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Allegany County, MD | # 11 | 5 | 197.1 GWh |
| Queen Anne's County, MD | # 10 | 10 | 318.6 GWh |
| Baltimore city, MD | # 9 | 11 | 378.0 GWh |
| Garrett County, MD | # 8 | 24 | 731.6 GWh |
| Montgomery County, MD | # 7 | 18 | 796.3 GWh |
| Harford County, MD | # 6 | 20 | 1.9 TWh |
| Anne Arundel County, MD | # 5 | 13 | 3.4 TWh |
| Cecil County, MD | # 4 | 10 | 3.6 TWh |
| Charles County, MD | # 3 | 6 | 3.9 TWh |
| Prince George's County, MD | # 2 | 42 | 8.1 TWh |
| Calvert County, MD | # 1 | 3 | 14.9 TWh |