Directory of Power Plants in Maryland
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Philadelphia | Constellation Power Source Generation, LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Jul 1970 | Dec 2023 | Distillate Fuel Oil |
| Perryman | Constellation Power Source Generation, LLC | Harford County, MD | PJM Interconnection, LLC (PJM) | 251.5 GWh | Dec 1971 | Jun 2024 | Natural Gas : 95.6% Distillate Fuel Oil : 4.4% |
| Perdue Salisbury Photovoltaic | Terraform Arcadia | Salisbury, MD | PJM Interconnection, LLC (PJM) | 1.6 GWh | Aug 2011 | Dec 2023 | Solar |
| Presbyterian Senior Living Service | Terraform Arcadia | Glen Arm, MD | PJM Interconnection, LLC (PJM) | 861.1 MWh | Aug 2013 | Sep 2023 | Solar |
| Pfeffers | Terraform Arcadia | Kingsville, MD | PJM Interconnection, LLC (PJM) | 2.0 GWh | Apr 2016 | Dec 2023 | Solar |
| Pinesburg Solar LLC | Madison Energy Holdings LLC | Williamsport, MD | PJM Interconnection, LLC (PJM) | 8.4 GWh | Apr 2020 | Dec 2023 | Solar |
| P52ES 1755 Henryton Rd Phase 1 LLC CSG | Nautilus Solar Solutions | Marriottsville, MD | PJM Interconnection, LLC (PJM) | 3.3 GWh | May 2021 | Dec 2023 | Solar |
| P52ES 1755 Henryton Rd Phase 2 LLC | Nautilus Solar Solutions | Marriottsville, MD | PJM Interconnection, LLC (PJM) | 3.8 GWh | May 2021 | Dec 2023 | Solar |
| Pittman Solar One LLC | Nautilus Solar Solutions | Hancock, MD | PJM Interconnection, LLC (PJM) | 3.6 GWh | Nov 2020 | Dec 2023 | Solar |
Browse Power Plants By Maryland Counties
Figures are based on June 2024 generation numbers.| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Calvert County, MD | # 1 | 2 | 16.2 TWh |
| Prince George's County, MD | # 2 | 34 | 6.4 TWh |
| Cecil County, MD | # 3 | 7 | 4.3 TWh |
| Charles County, MD | # 4 | 6 | 4.2 TWh |
| Harford County, MD | # 5 | 18 | 2.5 TWh |
| Anne Arundel County, MD | # 6 | 9 | 2.1 TWh |
| Montgomery County, MD | # 7 | 17 | 911.1 GWh |
| Allegany County, MD | # 8 | 4 | 782.2 GWh |
| Garrett County, MD | # 9 | 12 | 580.2 GWh |
| Baltimore city, MD | # 10 | 11 | 410.8 GWh |
| Queen Anne's County, MD | # 11 | 9 | 217.3 GWh |
| Somerset County, MD | # 12 | 7 | 169.6 GWh |
| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Washington County, MD | # 13 | 18 | 83.2 GWh |
| Dorchester County, MD | # 14 | 6 | 64.4 GWh |
| Frederick County, MD | # 15 | 11 | 62.2 GWh |
| Baltimore County, MD | # 16 | 24 | 56.9 GWh |
| Wicomico County, MD | # 17 | 6 | 49.2 GWh |
| Howard County, MD | # 18 | 20 | 30.2 GWh |
| Carroll County, MD | # 19 | 4 | 25.5 GWh |
| Kent County, MD | # 20 | 6 | 19.4 GWh |
| Worcester County, MD | # 21 | 4 | 14.4 GWh |
| Caroline County, MD | # 22 | 2 | 2.7 GWh |
| Talbot County, MD | # 23 | 3 | 383.7 MWh |