Transalta Centralia Generation — Plant Summary
- EIA Plant ID
- 3845
- Capacity
- 729.9 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Lewis, WA
- Operating Since
- 1973
- Generators
- 1
- Operator
- TransAlta Centralia Gen LLC
- Parent Company
- —
- Annual Generation
- 3,150,473 MWh
- Capacity Factor
- 49.4%
- Balancing Authority
- Bonneville Power Administration
- ISO/RTO
- —
- NERC Region
- WECC
Transalta Centralia Generation
OperatingSub. Coal
Ranked #1 of 1 Sub. Coal plants in WA#48 of 103 nationally
729.9 MW Sub. Coal operating in Lewis, WA — Bonneville Power Administration
EIAWD
729.9 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
1973
Operating Since
Location
Coordinates
46.7559, -122.8598
County
Lewis, WA
Nearby Plants
- SkookumchuckHydro1 MW · 11.1 km
- Chehalis Generating FacilityNatural Gas593.3 MW · 15.4 km
- Skookumchuck Wind FacilityWind136 MW · 21.7 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | TransAlta Centralia Gen LLC | — | — |
| Owner(s) | TransAlta Centralia Gen LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Centralia Power Plant, known also as the Centralia Coal Plant, Centralia Steam Plant, or Centralia Steam-Electric Plant, is a coal-fired power plant supplemented with a natural gas power plant known as the Big Hanaford Power Plant. The combined coal and natural gas facility is located east of Centralia in the Hanaford Valley of Lewis County, Washington.
Read more on WikipediaTransalta Centralia Generation is a 729.9 MW coal-fired power plant located in Lewis County, Washington. The plant began operating in 1973 and is owned and operated by TransAlta Centralia Gen LLC. It utilizes conventional steam coal technology and subbituminous coal (SUB) as its primary fuel source. The facility consists of a single generator.
In the most recent year with available data, Transalta Centralia Generation produced 3,150,473 MWh of electricity, achieving a capacity factor of 49.4%. The plant operates within the Bonneville Power Administration balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the largest coal plant in Washington state (1 of 1) and the 42nd largest in the United States (out of 75 coal plants).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
500 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
84.1K MWh
Latest Month
3.2M MWh
Annual Generation
49.4%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (9)Beta
Last updated 2026-03-26
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