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United States › Power plants › Coal power plants › Pennsylvania

COAL POWER PLANTS · OIL-FIRED POWER PLANTS

Keystone

Keystone is a 1,883 MW operating power plant in Armstrong County, Pennsylvania, operated by KeyCon Operating LLC.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingAug 1967 (current stage)
  5. Closed (not yet reached)

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Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
1Conventional Steam Coal936 MW OperatingAug 1967
2Conventional Steam Coal936 MW OperatingJul 1968
4Petroleum Liquids2.9 MW Standby / back-upNov 1968
5Petroleum Liquids2.9 MW Standby / back-upNov 1968
6Petroleum Liquids2.9 MW Standby / back-upNov 1968
3Petroleum Liquids2.5 MW Standby / back-upNov 1968

Plant details

Operator
KeyCon Operating LLC
Location
Armstrong County, Pennsylvania
Balancing authority
PJM
Sector
IPP Non-CHP
Capacity
Operating: 1,883 MW
First unit online
Aug 1967
EIA plant ID
3136

Location

40.6604, -79.3411

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem