Three Forks Water Power Project
Trinity County, California · EIA plant ID 54308 · Operator: Grizzly Mountain Ranch
Nameplate1MWSummer 1 MW
Generators1in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online1984
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), primary-fuel 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 4.6 | 132.3% | — |
| 2002 | 5.6 | 158.7% | — |
| 2003 | 7.9 | 56.4% | — |
| 2004 | 5.8 | 55.4% | — |
| 2005 | 8.2 | 78.4% | — |
| 2006 | 7.4 | 70.3% | — |
| 2007 | 6 | 57.1% | — |
| 2008 | 6.2 | 59.0% | — |
| 2009 | 5.9 | 56.4% | — |
| 2010 | 8.9 | 84.6% | — |
| 2011 | 7.8 | 74.6% | — |
| 2012 | 6.6 | 62.8% | — |
| 2013 | 4.2 | 39.8% | — |
| 2014 | 5 | 47.5% | — |
| 2015 | 4.2 | 40.2% | — |
| 2016 | 7.7 | 73.1% | — |
| 2017 | 6.8 | 65.0% | — |
| 2018 | 5.6 | 53.2% | — |
| 2019 | 6.6 | 62.7% | — |
| 2020 | 4 | 38.4% | — |
| 2021 | 3.4 | 32.6% | — |
| 2022 | 4.6 | 43.3% | — |
| 2023 | 2.7 | 25.6% | — |
| 2024 | 2.6 | 25.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1.3 | 1.2 | Dec 1984 | Operating | — | coming soon |
Owner / operator
Operator: Grizzly Mountain Ranch. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Grizzly Mountain Ranch | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Kekawaka Power House | 5 MW | 11.8 km |
| Gosselin Hydro Plant | 2 MW | 20.4 km |
| Baker Creek Hydroelectric | 2 MW | 40.2 km |
| Big Creek Water Works | 5 MW | 49.7 km |
| Humboldt Sawmill Company | 33 MW | 57.7 km |