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109.8 MW Hydro operating in Jefferson, OR
109.8 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1957
Operating Since
Coordinates
44.6944, -121.2314
County
Jefferson, OR
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Portland General Electric Co | Portland General Electric | Portland General Electric |
| Owner(s) | Portland General Electric Co, Warm Springs Power Enterprises | Portland General Electric | — |
| Status | Operating | operating | — |
Pelton Dam is a major dam on the Deschutes River in Jefferson County, Oregon, owned and operated as a hydroelectric facility by Portland General Electric, one element of its Pelton Round Butte Project on the Deschutes.
Read more on WikipediaPelton is a hydroelectric power plant located in Jefferson County, Oregon. The plant has a total capacity of 109.8 MW across three generators, and it began operating in 1957. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. Portland General Electric (PGE) both owns and operates the facility. Pelton ranks as the 10th largest of 11 hydroelectric plants in Oregon, and 171st of 194 nationally.
In the most recent year with available data, Pelton generated 361,788 MWh of electricity, resulting in a capacity factor of 37.6%. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region, and the balancing authority is Portland General Electric Company. Financial data indicates an installed cost of $538.96 per kW.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Portland General Electric Company (PGE)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
31.5K MWh
Latest Month
361.8K MWh
Annual Generation
37.6%
Capacity Factor
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Request a demo →Energy storage · Portland General Electric Company · Data from 2015–2024
$671/kW
Installed Cost
$15.2/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Request a demo →Market Position
LMP Node
PNP1_2_GNODE1-3
Pricing Hub
—
Last updated 2026-03-26
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