Directory of Power Plants in Maryland
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Mount Saint Mary's | Constellation Solar Horizons LLC | Emmitsburg, MD | PJM Interconnection, LLC (PJM) | 17.2 GWh | Jun 2012 | Aug 2026 | Solar |
| Conowingo | Constellation Power, Inc | Darlington, MD | PJM Interconnection, LLC (PJM) | 1.3 TWh | Feb 1928 | Aug 2026 | Water |
| Perryman | Constellation Power Source Generation, LLC | Harford County, MD | PJM Interconnection, LLC (PJM) | 404.0 GWh | Dec 1971 | Aug 2026 | Natural Gas : 73.9% Distillate Fuel Oil : 26.1% |
| Philadelphia | Constellation Power Source Generation, LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 9.3 GWh | Jul 1970 | Dec 2025 | Distillate Fuel Oil |
| Calvert Cliffs Nuclear Power Plant | Constellation Nuclear | Lusby, MD | PJM Interconnection, LLC (PJM) | 14.9 TWh | Apr 1975 | Aug 2026 | Nuclear |
| KDC Solar TC George Howard LLC | CleanCapital Holdings | West Friendship, MD | PJM Interconnection, LLC (PJM) | 3.3 GWh | Sep 2022 | Dec 2025 | Solar |
| KDC Solar TC Blandair Park LLC | CleanCapital Holdings | West Friendship, MD | PJM Interconnection, LLC (PJM) | 3.5 GWh | Sep 2022 | Dec 2025 | Solar |
| KDC Solar TC Little Patuxent WWTP LLC | CleanCapital Holdings | West Friendship, MD | PJM Interconnection, LLC (PJM) | 3.3 GWh | Sep 2022 | Dec 2025 | Solar |
| IGS Solar I - BWI5 | CleanCapital Holdings | Baltimore, MD | PJM Interconnection, LLC (PJM) | 2.0 GWh | Nov 2016 | May 2025 | Solar |
| Union Bridge Solar | Citizens Enterprises Corporation | Union Bridge, MD | PJM Interconnection, LLC (PJM) | 11.8 GWh | Mar 2022 | Dec 2025 | Solar |
| Chester Woods Point Solar, LLC CSG | Chester Woods Point Solar, LLC | Chester, MD | PJM Interconnection, LLC (PJM) | 4.1 GWh | May 2019 | Dec 2025 | Solar |
| Cherrywood Solar I | Cherrywood Solar, LLC | Greensboro, MD | PJM Interconnection, LLC (PJM) | 128.6 GWh | - | Aug 2026 | Solar |
| Chalk Point Power | Chalk Point Power, LLC | Aquasco, MD | PJM Interconnection, LLC (PJM) | 2.9 TWh | Jul 1964 | Aug 2026 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
| Crisfield | Calpine Mid-Atlantic Generation LLC | Crisfield, MD | PJM Interconnection, LLC (PJM) | 2.1 GWh | Apr 1968 | Dec 2025 | Distillate Fuel Oil |
| Brandon Shores | Brandon Shores LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 3.0 TWh | Apr 1984 | Aug 2026 | Bituminous Coal : 98.9% Distillate Fuel Oil : 1.1% |
| Deep Creek | BP Piney & Deep Creek LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 14.4 GWh | Jun 1925 | Dec 2025 | Water |
| Maryland Bioenergy Center (Jessup) | Bioenergy DevCo | Jessup, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Aug 2022 | Dec 2025 | Natural Gas |
| Biggs Ford Solar Center | Biggs Ford Solar Center, LLC | Walkersville, MD | PJM Interconnection, LLC (PJM) | 10.1 GWh | Jul 2025 | Dec 2025 | Solar |
| Maryland Solar | Arevon Energy, Inc. | Hagerstown, MD | PJM Interconnection, LLC (PJM) | 28.4 GWh | Aug 2013 | Aug 2026 | Solar |
| Domino Sugar Baltimore | American Sugar Refining, Inc. | Baltimore, MD | PJM Interconnection, LLC (PJM) | 41.6 GWh | May 1955 | Aug 2026 | Natural Gas : 89.9% Residual Fuel Oil : 10.1% |
| Synergen Panorama, LLC CSG | Altus Power America Management, LLC | Fort Washington, MD | PJM Interconnection, LLC (PJM) | 8.3 GWh | Jun 2019 | Dec 2025 | Solar |
| Rockdale | Altus Power America Management, LLC | Williamsport, MD | PJM Interconnection, LLC (PJM) | 1.6 GWh | Sep 2019 | Nov 2025 | Solar |
| MEBA | Altus Power America Management, LLC | Easton, MD | PJM Interconnection, LLC (PJM) | 2.3 GWh | Oct 2014 | Dec 2025 | Solar |
| Friendship II | Altus Power America Management, LLC | West Friendship, MD | PJM Interconnection, LLC (PJM) | 4.3 GWh | Mar 2023 | Dec 2025 | Solar |
| Friendship I | Altus Power America Management, LLC | West Friendship, MD | PJM Interconnection, LLC (PJM) | 4.4 GWh | Mar 2023 | Dec 2025 | Solar |
| Brookville Smart Bus Depot Microgrid | AlphaStruxure Service Co LP | Silver Spring, MD | PJM Interconnection, LLC (PJM) | 3.2 GWh | Sep 2022 | Dec 2025 | Solar : 53.2% Natural Gas : 46.8% |
| Brandywine Power Facility | Alpha Generation Brandywine, LLC | Brandywine, MD | PJM Interconnection, LLC (PJM) | 676.1 GWh | Jul 1996 | Aug 2026 | Natural Gas : 94.8% Distillate Fuel Oil : 5.2% |
| Big Spring Solar (CSG) | AES Clean Energy | Clear Spring, MD | PJM Interconnection, LLC (PJM) | 3.7 GWh | Oct 2024 | Dec 2025 | Solar |
| Cannonball Solar (CSG) | AES Clean Energy | Thurmont, MD | PJM Interconnection, LLC (PJM) | 3.3 GWh | May 2024 | Dec 2025 | Solar |
| Cabin Creek MD | AES Clean Energy | Hurlock, MD | PJM Interconnection, LLC (PJM) | 1.2 GWh | Jul 2025 | Dec 2025 | Solar |
| Smith Island | A & N Electric Coop | Ewell, MD | PJM Interconnection, LLC (PJM) | 108.0 MWh | Nov 1969 | Dec 2025 | Distillate Fuel Oil |
| 6685 Santa Barbara Ct | 6685 Santa Barbara Ct | Elkridge, MD | PJM Interconnection, LLC (PJM) | 1.6 GWh | Nov 2020 | Dec 2025 | Solar |
Browse Power Plants By Maryland Counties
Figures are based on August 2026 generation numbers.| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Talbot County, MD | # 23 | 3 | 12.7 GWh |
| Kent County, MD | # 22 | 6 | 23.0 GWh |
| Carroll County, MD | # 21 | 4 | 24.4 GWh |
| Worcester County, MD | # 20 | 5 | 34.3 GWh |
| Wicomico County, MD | # 19 | 11 | 44.7 GWh |
| Frederick County, MD | # 18 | 11 | 71.3 GWh |
| Howard County, MD | # 17 | 26 | 73.8 GWh |
| Baltimore County, MD | # 16 | 31 | 74.9 GWh |
| Washington County, MD | # 15 | 20 | 75.7 GWh |
| Caroline County, MD | # 14 | 2 | 129.9 GWh |
| Dorchester County, MD | # 13 | 8 | 153.4 GWh |
| Somerset County, MD | # 12 | 7 | 161.2 GWh |
| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Allegany County, MD | # 11 | 5 | 200.3 GWh |
| Queen Anne's County, MD | # 10 | 10 | 316.6 GWh |
| Baltimore city, MD | # 9 | 11 | 375.9 GWh |
| Garrett County, MD | # 8 | 24 | 794.4 GWh |
| Montgomery County, MD | # 7 | 18 | 833.3 GWh |
| Harford County, MD | # 6 | 20 | 1.9 TWh |
| Cecil County, MD | # 5 | 10 | 3.4 TWh |
| Anne Arundel County, MD | # 4 | 13 | 3.5 TWh |
| Charles County, MD | # 3 | 6 | 4.0 TWh |
| Prince George's County, MD | # 2 | 42 | 8.2 TWh |
| Calvert County, MD | # 1 | 3 | 14.9 TWh |