Port Westward
Natural gas power plant in Columbia County, Oregon. 483 MW of nameplate capacity across 2 generators, operated by Portland General Electric Co.
Also known as EIA plant 56227
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 483 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- June 2007First generator online
- Operator
- Portland General Electric CoEIA operator ID 15248
- Grid
- PGEBalancing authority PGE
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Columbia County, OR46.1789, −123.1720
- EIA plant ID
- 56227EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Port Westward produces
Free · EIA-923Net generation, 2025
3.26 TWh
3,264,822 MWh, final
Capacity factor, 2025
77.2%
2024: 64.9%
January to July 2026
1.49 TWh
Provisional
Range, 2015 to 2025
2.1–3.3
TWh a year. Low 2017, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | 1,722,070 | Not reported | 7 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | 2,648,334 | Not reported | 12 of 12 |
| 2010 | 2,745,177 | 64.9% | 12 of 12 |
| 2011 | 1,392,219 | 32.9% | 12 of 12 |
| 2012 | 1,729,181 | 40.8% | 12 of 12 |
| 2013 | 2,383,859 | Not reported | 12 of 12 |
| 2014 | 1,943,131 | 45.9% | 12 of 12 |
| 2015 | 2,324,304 | 54.9% | 12 of 12 |
| 2016 | 2,400,517 | 56.6% | 12 of 12 |
| 2017 | 2,129,090 | 50.3% | 12 of 12 |
| 2018 | 2,500,920 | 59.1% | 12 of 12 |
| 2019 | 2,737,946 | 64.7% | 12 of 12 |
| 2020 | 2,643,242 | 62.3% | 12 of 12 |
| 2021 | 2,918,641 | 69.0% | 12 of 12 |
| 2022 | 2,323,897 | 54.9% | 12 of 12 |
| 2023 | 3,067,547 | 72.5% | 12 of 12 |
| 2024 | 2,753,357 | 64.9% | 12 of 12 |
| 2025 | 3,264,822 | 77.2% | 12 of 12 |
| 2026 (provisional, partial year) | 1,485,496 | 60.4% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDCO₂, 2025
1.35M
US short tons. 2024: 1.14M
SO₂, 2025
6
US short tons
NOx, 2025
94
US short tons
CO₂ per MWh, calculated
0.41 t
About 828 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (PWEU1), matched to EIA plant 56227 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
483
million gallons
Consumption, 2024
423
million gallons
Source
COLUMBIA RIVER
Surface, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.147
USGS SUI, HUC12 Lower Beaver Creek-Frontal Columbia River
12 of 12 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combined Cycle | 312.0 | June 2007 |
| 2 | Natural Gas Fired Combined Cycle | 171.0 | June 2007 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Portland General Electric Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Port Westward
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Questions about Port Westward
How much power does Port Westward produce?
Port Westward reported 3,264,822 MWh (3.26 TWh) of net generation in 2025, a 77.2% capacity factor on 483 MW of nameplate capacity. From January to July 2026 it reported 1.49 TWh, which is provisional.
Where is Port Westward?
Port Westward is in Columbia County, Oregon, at 46.1789, −123.1720. It is in the Portland General Electric Company balancing area (PGE).
Who operates Port Westward?
EIA-860M for August 2026 lists Portland General Electric Co as the operator (EIA operator ID 15248). The operator is not always the owner.
When did Port Westward start operating?
Its first generator began operating in June 2007, according to EIA-860M.
Does InfraMap have power prices for Port Westward?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Port Westward, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page