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593.3 MW Natural Gas operating in Lewis, WA — Bonneville Power Administration
593.3 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2003
Operating Since
Coordinates
46.6225, -122.9131
County
Lewis, WA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PacifiCorp | PacifiCorp | — |
| Owner(s) | PacifiCorp | Berkshire Hathaway | — |
| Status | Operating | — | — |
The Chehalis Generating Facility is a 593.3 MW natural gas-fired combined cycle power plant located in Lewis County, Washington. The plant began operating in 2003 and consists of 3 generators. It is owned by Berkshire Hathaway and operated by PacifiCorp. The facility is the second-largest of 13 natural gas plants in Washington state, and ranks 414th out of 945 nationally. It operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, the Chehalis Generating Facility produced 2,337,422 MWh of electricity, achieving a capacity factor of 45.0%. Financial data indicates an installed cost of $587.83 per kW. The plant also has a reported PPA price of $10.78 per MWh. Financial data is sourced from FERC and FERC EQRs.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
139.8K MWh
Latest Month
2.3M MWh
Annual Generation
45.0%
Capacity Factor
CO₂ Intensity
899 lb/MWh
NOx
0.071 lb/MWh
SO₂
PacifiCorp · Data from 2015–2025
$10.8/MWh
PPA Price
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
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ask pi about Chehalis Generating FacilityBonneville Power Administration (BPAT)
Grid Voltage
500.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.010 lb/MWh
CH₄
0.017 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
43.1%
Annual Net Gen
2239 GWh
CO₂eq
900 lb/MWh
Subregion
WECC Northwest