Port Westward
Columbia County, Oregon · EIA plant ID 56227 · Operator: Portland General Electric Co
Nameplate483MWSummer 392 MW
Generators2in service
Net generation2,903GWh12 mo to Aug 2026
Capacity factor84%gas/coal/oil units, summer MW
Heat rate7,037Btu/kWhfossil units, electric fuel, HHV
First online2007Runs as baseload
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2007 | 1,722.1 | 87.9% | 7,144 |
| 2008 | 2,834 | 82.3% | 6,679 |
| 2009 | 2,648.3 | 81.3% | 6,814 |
| 2010 | 2,745.2 | 84.2% | 6,711 |
| 2011 | 1,392.2 | 42.7% | 6,957 |
| 2012 | 1,729.2 | 52.9% | 6,972 |
| 2013 | 2,383.9 | 69.4% | 7,022 |
| 2014 | 1,943.1 | 56.6% | 7,010 |
| 2015 | 2,324.3 | 67.7% | 6,882 |
| 2016 | 2,400.5 | 69.7% | 6,960 |
| 2017 | 2,129.1 | 62.0% | 6,972 |
| 2018 | 2,500.9 | 72.8% | 7,057 |
| 2019 | 2,737.9 | 79.7% | 6,959 |
| 2020 | 2,643.2 | 76.7% | 6,942 |
| 2021 | 2,918.6 | 85.0% | 6,986 |
| 2022 | 2,323.9 | 67.6% | 7,002 |
| 2023 | 3,067.5 | 89.3% | 6,899 |
| 2024 | 2,753.4 | 79.9% | 6,969 |
| 2025 | 3,264.8 | 95.0% | 6,983 |
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 | Natural Gas Fired Combined Cycle | CT | 312 | 256.2 | Jun 2007 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combined Cycle | CA | 171 | 136 | Jun 2007 | 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 | 100.0% | 483 MW |
Nearby plants
Within 80 km.
| Port Westward Unit 2 | 226 MW | 0 km |
| Beaver | 611 MW | 0.7 km |
| Mint Farm Generating Station | 319 MW | 15 km |
| Nippon Dynawave Packaging Longview WA | 62 MW | 16.5 km |
| Alden Bailey Power Plant | retired | 18.2 km |
| Georgia-Pacific Wauna Mill | 30 MW | 18.3 km |