Port Westward Unit 2

🔥 Natural GasElectric Utility225 MW capacity

21st largest plant in Oregon · 1354th nationally

Port Westward Unit 2 is a natural gas power plant in Oregon with a nameplate capacity of 226 MW. It generates roughly 1.2M MWh per year — enough to power about 111,657 average U.S. homes.

Its capacity factor of 59% puts it in the middle range — running steadily but not full-time. At 998 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%59%
Mid-merit — steady but not full-time
Capacity226 MWnameplate
Annual Generation1.2M MWhEPA eGRID
Capacity Factor59%of theoretical max
Annual CO₂585.0kmetric tons

Location

Plant NamePort Westward Unit 2
OperatorPortland General Electric Co
CityClatskanie
CountyColumbia County
StateOregon
ZIP97016
Coordinates46.17889, -123.17194

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasBiomass

Generators (12)

IDTechnologyFuelCapacityStatusOnline
1Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
10Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
11Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
12Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
2Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
3Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
4Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
5Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
6Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
7Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
8Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2014
9Natural Gas Internal Combustion EngineNatural Gas18.8 MWOperating2015

Emissions (annual)

CO₂585.0k metric tons
SO₂16 metric tons
NOₓ12.6k metric tons
CO₂ Rate998 lb/MWh
U.S. grid average800 lb/MWhNatural gas combined-cycle average900 lb/MWhThis plant997 lb/MWhCoal plant average2,100 lb/MWh

Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.

Grid context

NERC RegionWECC
Balancing AuthorityPortland General Electric Company

About Natural Gas plants

Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.

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