Power plant · Maryland, United States
Perryman
Perryman is a power plant in Maryland, United States, with 492 MW of capacity, owned by Constellation Power Source Generation, LLC.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Maryland | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Operating | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1972 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Constellation Power Source Generation, LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Constellation Power Source Generation, LLC | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 492 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Natural Gas Fired Combustion Turbine | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 39.4428, -76.2218 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
Research on this power plant and its owner.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the owner.
Request researchHow it compares
Perryman is the 10th-largest of 10 power plants in Maryland and the 743rd-largest of 800 in the United States by capacity; its 492 MW is <0.1% of the 839,036 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Maryland | 10th of 10 | 10,358 MW | 4.8% |
| United States | 743rd of 800 | 839,036 MW | <0.1% |
| All power plants in our data | 851st of 12,032 | 1,190,447 MW | <0.1% |
Nearby
Within 50 km of this power plant: 8 data centers and 5 mines, measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Havre de Grace Quarry | Mine | — | Operating | 17 km |
| Belvedere Plant | Mine | — | Operating | 23 km |
| Chesapeake Minerals | Mine | — | Operating | 25 km |
| Johns Hopkins Data Center | Data center | — | — | 33 km |
| Expedient Tidepoint | Data center | — | — | 37 km |
| Crown Castle Baltimore | Data center | — | — | 37 km |
Owner, operator and place
Other power plants in Maryland
- Calvert Cliffs Nuclear Power Plant1,850 MW
- Chalk Point Power1,825 MW
- Brandon Shores1,370 MW
- Wildcat Point Generation Facility1,114 MW
- Key831 MW
- Essential Power Rock Springs LLC796 MW
- CPV St Charles Energy Center775 MW
- Herbert A Wagner774 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.