PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/1556
EIA plant 1556
Harford County · Harford · MD
Perryman
Operated by Constellation Power Source Generation, LLC
Published location
Where is Perryman?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
39.442836, -76.221761
Open the interactive map ↗Map data © OpenStreetMap contributors
Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 3,467 MWh |
| 2 | 1,787 MWh |
| 3 | 4,598 MWh |
| 4 | 8,875 MWh |
| 5 | 19,778 MWh |
| 6 | 19,868 MWh |
| 7 | 44,002 MWh |
| 8 | 22,862 MWh |
| 9 | 7,094 MWh |
| 10 | 10,170 MWh |
| 11 | 4,369 MWh |
| 12 | 5,516 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| GT5 | Natural Gas Fired Combustion Turbine | NG | 192 | OP |
| GT6 | Natural Gas Fired Combustion Turbine | NG | 141 | OP |
| GT1 | Petroleum Liquids | DFO | 53.1 | OP |
| GT3 | Petroleum Liquids | DFO | 53.1 | OP |
| GT4 | Petroleum Liquids | DFO | 53.1 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
1556
Sector
IPP Non-CHP
Water source
Unavailable
Data edition
2024-final