Directory of Power Plants in Maryland
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Ripley | Conductive Power | La Plata, MD | PJM Interconnection, LLC (PJM) | 52.2 GWh | Mar 2023 | Jan 2025 | Solar |
| Rock Hall | Terraform Arcadia | Rock Hall, MD | PJM Interconnection, LLC (PJM) | 1.7 GWh | Nov 2012 | Dec 2023 | Solar |
| Rockdale | Conductive Power | Williamsport, MD | PJM Interconnection, LLC (PJM) | 1.8 GWh | Sep 2019 | Dec 2023 | Solar |
| Rockfish Solar LLC | Rockfish Solar LLC | Waldorf, MD | PJM Interconnection, LLC (PJM) | 14.6 GWh | Jul 2015 | Dec 2023 | Solar |
| Roth Rock North Wind Farm, LLC | Roth Rock Wind Farm LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 24.7 GWh | Jul 2011 | Jan 2025 | Wind |
| Roth Rock Wind Farm LLC | Roth Rock Wind Farm LLC | Oakland, MD | PJM Interconnection, LLC (PJM) | 98.6 GWh | Jul 2011 | Jan 2025 | Wind |
Browse Power Plants By Maryland Counties
Figures are based on October 2024 generation numbers.| County | State Rank | Active Plants | Oct 2024 Generation |
|---|---|---|---|
| Allegany County, MD | # 7 | 4 | 725.5 GWh |
| Anne Arundel County, MD | # 5 | 9 | 2.7 TWh |
| Baltimore city, MD | # 10 | 11 | 378.3 GWh |
| Baltimore County, MD | # 14 | 25 | 60.5 GWh |
| Calvert County, MD | # 1 | 2 | 14.8 TWh |
| Caroline County, MD | # 22 | 2 | 2.6 GWh |
| Carroll County, MD | # 19 | 4 | 24.7 GWh |
| Cecil County, MD | # 4 | 7 | 3.2 TWh |
| Charles County, MD | # 3 | 6 | 3.7 TWh |
| Dorchester County, MD | # 16 | 6 | 55.8 GWh |
| Frederick County, MD | # 15 | 11 | 58.8 GWh |
| Garrett County, MD | # 9 | 12 | 602.3 GWh |
| County | State Rank | Active Plants | Oct 2024 Generation |
|---|---|---|---|
| Harford County, MD | # 6 | 18 | 1.9 TWh |
| Howard County, MD | # 18 | 21 | 36.8 GWh |
| Kent County, MD | # 20 | 6 | 18.3 GWh |
| Montgomery County, MD | # 8 | 18 | 689.7 GWh |
| Prince George's County, MD | # 2 | 34 | 6.7 TWh |
| Queen Anne's County, MD | # 11 | 9 | 198.6 GWh |
| Somerset County, MD | # 12 | 7 | 151.4 GWh |
| Talbot County, MD | # 23 | 3 | 520.0 MWh |
| Washington County, MD | # 13 | 19 | 79.6 GWh |
| Wicomico County, MD | # 17 | 7 | 43.9 GWh |
| Worcester County, MD | # 21 | 4 | 13.6 GWh |