45 MW Black Liquor operating in Cowlitz, WA — Bonneville Power Administration
45 MW
Nameplate Capacity
2
Generators
units
Wood/Wood Waste Biomass
Technology
1958
Operating Since
Coordinates
46.1039, -122.9184
County
Cowlitz, WA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Longview Fibre Co | Smurfit Westrock PLC | — |
| Owner(s) | Longview Fibre Co | Smurfit Westrock | — |
| Status | Operating | operating | — |
The Longview Fibre plant is a 45 MW biomass-fueled power plant located in Cowlitz County, Washington. The plant began operating in 1958 and consists of two generators utilizing wood and wood waste biomass technology. It is owned by Smurfit Westrock, an Irish company, and operated by Longview Fibre Co. The plant's primary fuel source is black liquor, a byproduct of the paper pulping process.
In the most recent year with available data, Longview Fibre generated 235,416 MWh of electricity, achieving a capacity factor of 59.7%. The plant operates within the Bonneville Power Administration balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Among biomass plants in Washington, Longview Fibre ranks 2nd out of 3, and nationally it ranks 53rd out of 66 similar plants.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Industrial
Sector
Industrial CHP
17.6K MWh
Latest Month
235.4K MWh
Annual Generation
59.7%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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