Peach Bottom
Peach Bottom is a 3 GW nuclear power plant in York County, Pennsylvania, operated by Constellation Nuclear. EIA-860M lists 2 generating units here, inside PJM. Its units entered service in 1974.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 2,876.4 MW
- 2,549.4 MW net summer
- Generating units
- 2
- In service
- 1974
- EIA plant ID
- 3166
Where it is
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- County
- York County, Pennsylvania
- Coordinates
- 39.7589, -76.2687
- Balancing authority
- PJM
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Constellation Nuclear
- Primary energy source
- Nuclear
- Technologies
- Nuclear
- Status
- Operating
Peach Bottom: FAQ
- Where is Peach Bottom?
- In York County, Pennsylvania (PA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Peach Bottom?
- 3 GW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Peach Bottom?
- EIA-860M names Constellation Nuclear as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Peach Bottom LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Constellation Nuclear here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Peach Bottom LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Peach Bottom still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.