Humboldt Sawmill Company
Humboldt County, California · EIA plant ID 50049 · Operator: Mendocino Forest Products
Nameplate33MWSummer 34 MW
Generators3in service
Net generation124GWh12 mo to Aug 2026
Capacity factor26%other units, summer MW
Heat rate23,476Btu/kWhfossil units, electric fuel, HHV
First online1938
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), other units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 208 | 70.9% | — |
| 2002 | 185.5 | 63.2% | — |
| 2003 | 223.2 | 76.1% | — |
| 2004 | 228.3 | 77.6% | — |
| 2005 | 229.9 | 78.3% | — |
| 2006 | 177.8 | 60.6% | — |
| 2007 | 163.5 | 55.7% | — |
| 2008 | 82 | 27.9% | — |
| 2009 | 117.1 | 39.9% | — |
| 2010 | 141.1 | 48.1% | — |
| 2011 | 118.6 | 40.4% | — |
| 2012 | 159.6 | 54.2% | — |
| 2013 | 134.9 | 45.9% | 16,207 |
| 2014 | 96.6 | 32.9% | 14,311 |
| 2015 | 0 | 0.0% | — |
| 2016 | 77.2 | 26.2% | 23,537 |
| 2017 | 69.1 | 23.3% | — |
| 2018 | 110.1 | 37.4% | 25,104 |
| 2019 | 122.8 | 41.7% | 20,296 |
| 2020 | 126.3 | 42.9% | 20,844 |
| 2021 | 126.6 | 43.1% | 21,998 |
| 2022 | 142.7 | 48.1% | 20,834 |
| 2023 | 120 | 40.6% | 18,993 |
| 2024 | 114 | 38.6% | 22,724 |
| 2025 | 106.6 | 36.3% | 25,371 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Wood/Wood Waste Biomass | ST | 12.5 | 13 | Mar 1988 | Operating | — | coming soon |
| GEN2 | Wood/Wood Waste Biomass | ST | 12.5 | 13 | Mar 1988 | Operating | — | coming soon |
| GEN3 | Wood/Wood Waste Biomass | ST | 7.5 | 7.5 | Jan 1938 | Operating (Out of service) | — | coming soon |
| Gen1 | Wood/Wood Waste Biomass | ST | 12.5 | 13 | Mar 1988 | not_current | — | coming soon |
| Gen3 | Wood/Wood Waste Biomass | ST | 7.5 | 7.5 | Jan 1938 | not_current | — | coming soon |
Owner / operator
Operator: Mendocino Forest Products. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Mendocino Forest Products | 100.0% | 33 MW |
Nearby plants
Within 80 km.
| Humboldt Bay | 167 MW | 31.3 km |
| Baker Creek Hydroelectric | 2 MW | 32.3 km |
| Fairhaven Power | 19 MW | 37.3 km |
| Foster Clean Power B | 5 MW | 45.5 km |
| Foster Clean Power A | 4 MW | 45.5 km |
| Big Creek Water Works | 5 MW | 54.5 km |