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32.5 MW Wood Waste operating in Humboldt, CA — California Independent System Operator
32.5 MW
Nameplate Capacity
3
Generators
units
Wood/Wood Waste Biomass
Technology
1938
Operating Since
Coordinates
40.4810, -124.1046
County
Humboldt, CA
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Mendocino Forest Products | Mendocino Forest Products Company LLC | — |
| Owner(s) | Mendocino Forest Products | Mendocino Forest Products Company | — |
| Status | Operating | operating | — |
The Humboldt Sawmill Company is a 32.5 MW biomass power plant located in Humboldt County, California. The plant, which primarily burns wood and wood waste, began operating in 1938 and has three generators. It is owned and operated by Mendocino Forest Products Company. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, the Humboldt Sawmill Company generated 106,644 MWh of electricity, achieving a capacity factor of 37.6%. Among biomass plants in California, it ranks 6th out of 25, and nationally it ranks 38th out of 97.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
California Independent System Operator (CISO)
Grid Voltage
60.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Commercial
Sector
Industrial CHP
6.2K MWh
Latest Month
106.6K MWh
Annual Generation
37.6%
Capacity Factor
CO₂ Intensity
27 lb/MWh
NOx
3 lb/MWh
SO₂
0.491 lb/MWh
CH₄
1 lb/MWh
N₂O
0.181 lb/MWh
Capacity Factor
42.1%
Annual Net Gen
120 GWh
CO₂eq
113 lb/MWh
Subregion
WECC California
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $113.6M
Point of Interconnection
Nearest Substation
Pacific Lumber
Substation Distance
0.989 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
PACLUMB_7_N001
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
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