Poole
Mono County, California · EIA plant ID 353 · Operator: Southern California Edison Co
Nameplate11MWSummer 11 MW
Generators1in service
Net generation22GWh12 mo to Dec 2025
Capacity factor23%hydro units, summer MW
Heat rate—thermal plants only
First online1924
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) |
|---|---|---|---|
| 2001 | 23.1 | 24.2% | — |
| 2002 | 27.5 | 28.8% | — |
| 2003 | 25.5 | 26.7% | — |
| 2004 | 29.9 | 31.3% | — |
| 2005 | 38.2 | 40.0% | — |
| 2006 | 44 | 46.0% | — |
| 2007 | 18.7 | 19.6% | — |
| 2008 | 22.1 | 23.1% | — |
| 2009 | 29.1 | 30.4% | — |
| 2010 | 32.3 | 33.9% | — |
| 2011 | 37.3 | 39.4% | — |
| 2012 | 7.9 | 8.2% | — |
| 2013 | 8.2 | 8.5% | — |
| 2014 | 21.2 | 22.2% | — |
| 2015 | 17.6 | 17.8% | — |
| 2016 | 30.4 | 30.6% | — |
| 2017 | 39.2 | 39.6% | — |
| 2018 | 14.2 | 14.3% | — |
| 2019 | 26 | 26.3% | — |
| 2020 | 13.9 | 14.0% | — |
| 2021 | 15.8 | 16.0% | — |
| 2022 | 14.6 | 14.8% | — |
| 2023 | 35.7 | 36.1% | — |
| 2024 | 22.8 | 23.0% | — |
| 2025 | 22.3 | 22.5% | — |
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 | 11.3 | 11.3 | May 1924 | Operating | — | coming soon |
Owner / operator
Operator: Southern California Edison Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southern California Edison Co | 100.0% | 11 MW |
Nearby plants
Within 80 km.
| Lundy | 3 MW | 11.6 km |
| Rush Creek | 13 MW | 21.3 km |
| CD4 | 44 MW | 42.4 km |
| Mammoth Pacific I | 10 MW | 42.5 km |
| Mammoth Pacific II | 15 MW | 42.7 km |
| Ples I | 15 MW | 42.8 km |