Peach Bottom — Plant Summary
- EIA Plant ID
- 3166
- Capacity
- 2876.4 MW
- Primary Fuel
- Nuclear
- Technology
- Nuclear
- Status
- Operating
- Location
- York, PA
- Operating Since
- 1974
- Generators
- 2
- Operator
- Constellation Nuclear
- Parent Company
- Exelon
- Annual Generation
- 21,944,008 MWh
- Capacity Factor
- 87.1%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
Peach Bottom
OperatingNuclear
Ranked #1 of 5 Nuclear plants in PA#4 of 57 nationally
2876.4 MW Nuclear operating in York, PA — PJM Interconnection, LLC
EIAGEMWD
2,876.4 MW
Nameplate Capacity
2
Generators
units
Nuclear
Technology
1974
Operating Since
Location
Coordinates
39.7589, -76.2687
County
York, PA
Nearby Plants
- York Energy CenterNatural Gas1449.4 MW · 4.0 km
- Muddy RunHydro1072 MW · 6.0 km
- HoltwoodHydro247.3 MW · 9.3 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Constellation Nuclear | Exelon Generation | Exelon |
| Owner(s) | Constellation Nuclear, Public Service Elec & Gas Co | Exelon | — |
| Status | Operating | operating | — |
Ownership Chain
About
The Peach Bottom Atomic Power Station is an American nuclear power plant that is located 35 miles (56 km) northeast of Baltimore and 50 miles (80 km) southeast of Harrisburg in Peach Bottom Township, York County, Pennsylvania. Situated close to the Susquehanna River, it is three miles north of the Maryland border.
Read more on WikipediaPeach Bottom is a nuclear power plant located in York County, Pennsylvania. With a total capacity of 2876.4 MW across two generators, it is the largest nuclear plant in Pennsylvania (ranked 1 of 5) and the fourth-largest in the United States (ranked 4 of 55). The plant began operating in 1974 and is owned by Exelon, with Constellation Nuclear as the operator.
Peach Bottom operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. In the latest year of available data, the plant generated 21,944,008 MWh of electricity, achieving a capacity factor of 87.1%. The plant has been the subject of 10 news articles, with 8 focused on industry topics and 2 on regulatory matters.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
500 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
2.0M MWh
Latest Month
21.9M MWh
Annual Generation
87.1%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
20141102
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
News & Articles (10)Beta
Regulatory·ferc order
NRC OKs I&C upgrade for Limerick
The Nuclear Regulatory Commission has amended the operating licenses of the two boiling water reactors at Constellation Energy's Limerick...
Nuclear Regulatory Commission (regulator)Constellation Energy (operator)
American Nuclear Society -- ANS·2 months ago
Industry·corporate
Siren test planned for Peach Bottom nuclear plant
YORK COUNTY, Pa. (WHTM) — A nuclear power station in the Midstate will test its emergency warning sirens next week. Constellation Energy...
Constellation Energy (operator)
ABC27·3 months ago
Industry·corporate
Live near a nuclear plant? Here's where to get free potassium iodide tablets
Pennsylvanians who live, work, or study within 10 miles of a nuclear power plant can receive free potassium iodide tablets on Aug. 14.
LancasterOnline·7 months ago
Industry·corporate
Pa. health department to distribute free potassium iodide tablets to residents near nuclear plants
In the unlikely event of a nuclear accident, ingesting KI tablets can help reduce the risk of thyroid cancer from exposure to some...
Pa. health department (other)
90.5 WESA·7 months ago
Last updated 2026-03-14
View all 10 articles