Bonneville
Multnomah County, Oregon · EIA plant ID 3075 · Operator: USACE Northwestern Division
Nameplate1,162MWSummer 1,154 MW
Generators20in service
Net generation4,073GWh12 mo to Aug 2026
Capacity factor40%hydro units, summer MW
Heat rate—thermal plants only
First online1938
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 4,118.4 | 38.8% | — |
| 2002 | 4,682.4 | 44.1% | — |
| 2003 | 4,492 | 42.3% | — |
| 2004 | 4,693.5 | 48.9% | — |
| 2005 | 4,311.4 | 45.0% | — |
| 2006 | 5,083.3 | 53.1% | — |
| 2007 | 4,559 | 47.6% | — |
| 2008 | 4,485.7 | 46.7% | — |
| 2009 | 4,465.8 | 46.7% | — |
| 2010 | 4,035 | 42.1% | — |
| 2011 | 5,511.3 | 57.6% | — |
| 2012 | 5,549.1 | 57.8% | — |
| 2013 | 4,671.5 | 46.2% | — |
| 2014 | 4,876.9 | 48.3% | — |
| 2015 | 4,127.1 | 40.8% | — |
| 2016 | 4,625.4 | 45.6% | — |
| 2017 | 4,834.7 | 47.8% | — |
| 2018 | 4,859.8 | 48.1% | — |
| 2019 | 4,207.1 | 41.6% | — |
| 2020 | 4,669.8 | 46.1% | — |
| 2021 | 4,010.4 | 39.7% | — |
| 2022 | 4,681.2 | 46.3% | — |
| 2023 | 3,631 | 35.9% | — |
| 2024 | 3,492.9 | 34.5% | — |
| 2025 | 3,721.9 | 36.8% | — |
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 | 53.5 | 53.5 | Jul 1938 | Operating (Out of service, expected back within the year) | — | coming soon |
| 10 | Conventional Hydroelectric | HY | 62.1 | 54 | Jan 1944 | Operating | — | coming soon |
| 11 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Oct 1982 | Operating | — | coming soon |
| 12 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Oct 1982 | Operating | — | coming soon |
| 13 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Oct 1982 | Operating | — | coming soon |
| 14 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Jun 1982 | Operating | — | coming soon |
| 15 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Mar 1982 | Operating | — | coming soon |
| 16 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Dec 1981 | Operating | — | coming soon |
| 17 | Conventional Hydroelectric | HY | 66.5 | 66.5 | Sep 1981 | Operating | — | coming soon |
| 18 | Conventional Hydroelectric | HY | 66.5 | 66.5 | May 1981 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 53.5 | 53.5 | Aug 1938 | Operating (Out of service, expected back within the year) | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Jan 1941 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Feb 1941 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Oct 1941 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Jun 1942 | Operating | — | coming soon |
| 7 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Apr 1943 | Operating | — | coming soon |
| 8 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Jul 1943 | Operating | — | coming soon |
| 9 | Conventional Hydroelectric | HY | 62.1 | 62.1 | Oct 1943 | Operating (Out of service, expected back within the year) | — | coming soon |
| F1 | Conventional Hydroelectric | HY | 13.1 | 13.1 | Jan 1982 | Operating | — | coming soon |
| F2 | Conventional Hydroelectric | HY | 13.1 | 13.1 | Nov 1981 | Operating (Out of service, expected back within the year) | — | coming soon |
Owner / operator
Operator: USACE Northwestern Division. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| USACE Northwestern Division | 100.0% | 1,162 MW |
Nearby plants
Within 80 km.
| PHP 1 | 24 MW | 21.2 km |
| PHP 2 | 12 MW | 27.2 km |
| Peters Drive Plant | 2 MW | 30.6 km |
| Brightwood Solar, LLC | 10 MW | 30.9 km |
| Middle Fork Irrigation District | 3 MW | 32.2 km |
| Copper Dam Plant | 3 MW | 32.5 km |