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United States › Power plants › Hydroelectric plants › Oregon

HYDROELECTRIC PLANTS

Round Butte

Round Butte is a 373 MW operating hydroelectric plant in Jefferson County, Oregon, operated by Portland General Electric Co.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingAug 1964 (current stage)
  5. Closed (not yet reached)

Open in Google MapsMore hydroelectric plants in Oregon

Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
2Conventional Hydroelectric130 MW OperatingNov 1964
3Conventional Hydroelectric130 MW OperatingOct 1964
1Conventional Hydroelectric113 MW OperatingAug 1964

Plant details

Operator
Portland General Electric Co
Location
Jefferson County, Oregon
Balancing authority
PGE
Sector
Electric Utility
Capacity
Operating: 373 MW
First unit online
Aug 1964
EIA plant ID
3050

Location

44.6058, -121.2773

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