Murphys
Calaveras County, California · EIA plant ID 261 · Operator: Utica Water & Power Authority
Nameplate4MWSummer 1 MW
Generators1in service
Net generation15GWh12 mo to Dec 2025
Capacity factor130%!hydro units, summer MW
Heat rate—thermal plants only
First online1954
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), hydro 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) |
|---|---|---|---|
| 2002 | 0 | 0.0% | — |
| 2003 | 15.3 | 58.2% | — |
| 2004 | 14 | 53.2% | — |
| 2005 | 14 | 53.3% | — |
| 2006 | 16.7 | 63.4% | — |
| 2007 | 10.6 | 40.3% | — |
| 2008 | 12.9 | 48.8% | — |
| 2009 | 15.5 | 58.9% | — |
| 2010 | 16.3 | 62.1% | — |
| 2011 | 17.9 | 68.0% | — |
| 2012 | 14.1 | 53.6% | — |
| 2013 | 12.2 | 82.1% | — |
| 2014 | 11.5 | 77.5% | — |
| 2015 | 6.2 | 41.5% | — |
| 2016 | 13.8 | 92.1% | — |
| 2017 | 18.6 | 124.7% | — |
| 2018 | 14.2 | 95.3% | — |
| 2019 | 15 | 100.5% | — |
| 2020 | 13.8 | 92.2% | — |
| 2021 | 10 | 67.4% | — |
| 2022 | 9.6 | 64.1% | — |
| 2023 | 17.8 | 155.9% | — |
| 2024 | 15.5 | 135.3% | — |
| 2025 | 14.8 | 130.1% | — |
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 | 3.6 | 1.3 | Mar 1954 | Operating | — | coming soon |
Owner / operator
Operator: Utica Water & Power Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Utica Water & Power Authority | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Collierville Powerhouse | 253 MW | 5.8 km |
| Stanislaus | 82 MW | 6.7 km |
| Angels | 1 MW | 11.7 km |
| Phoenix | 2 MW | 16.5 km |
| Sierra Pacific Sonora | 8 MW | 23 km |
| New Melones | 300 MW | 23.4 km |