Pelton
Jefferson County, Oregon · EIA plant ID 3048 · Operator: Portland General Electric Co
Nameplate110MWSummer 110 MW
Generators3in service
Net generation400GWh12 mo to Dec 2025
Capacity factor41%hydro units, summer MW
Heat rate—thermal plants only
First online1957
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 385 | 40.0% | — |
| 2002 | 381.2 | 39.6% | — |
| 2003 | 387 | 40.2% | — |
| 2004 | 382.5 | 39.7% | — |
| 2005 | 381.4 | 39.6% | — |
| 2006 | 480.2 | 49.9% | — |
| 2007 | 415.1 | 43.2% | — |
| 2008 | 414.8 | 43.0% | — |
| 2009 | 414.2 | 43.1% | — |
| 2010 | 424.3 | 44.1% | — |
| 2011 | 478 | 49.7% | — |
| 2012 | 455.7 | 47.2% | — |
| 2013 | 406.4 | 42.2% | — |
| 2014 | 422.5 | 43.9% | — |
| 2015 | 397.8 | 41.3% | — |
| 2016 | 401.6 | 41.6% | — |
| 2017 | 445.1 | 46.2% | — |
| 2018 | 361.7 | 37.5% | — |
| 2019 | 382.8 | 39.7% | — |
| 2020 | 339.1 | 35.1% | — |
| 2021 | 295.2 | 30.6% | — |
| 2022 | 311 | 32.3% | — |
| 2023 | 347.5 | 36.1% | — |
| 2024 | 361.8 | 37.4% | — |
| 2025 | 399.6 | 41.5% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 45 | 38 | Dec 1957 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 32.4 | 36 | Mar 1958 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 32.4 | 36 | Apr 1958 | Operating | — | coming soon |
Owner / operator
Operator: Portland General Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Portland General Electric Co | 50.1% | 55 MW |
| Warm Springs Power Enterprises | 49.9% | 55 MW |
Nearby plants
Within 80 km.
| Warm Springs Power Enterprises | 20 MW | 3.6 km |
| Elbe Solar Center | 10 MW | 8.7 km |
| Adams Solar Center | 10 MW | 8.9 km |
| Round Butte | 373 MW | 10.5 km |
| Salmonfly Solar and Storage | — | 12.5 km |
| 45 Mile Hydroelectric Project | 3 MW | 19.5 km |