Perris
Riverside County, California · EIA plant ID 481 · Operator: Metropolitan Water District of S CA
Nameplate8MWSummer 8 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%hydro units, summer MW
Heat rate—thermal plants only
First online1983
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 | 26.1 | 37.3% | — |
| 2002 | 36.8 | 52.6% | — |
| 2003 | 32.5 | 46.4% | — |
| 2004 | 38.4 | 104.2% | — |
| 2005 | 21.4 | 58.3% | — |
| 2006 | 34.4 | 93.5% | — |
| 2007 | 26.9 | 73.0% | — |
| 2008 | 13.1 | 18.9% | — |
| 2009 | 13.2 | 19.1% | — |
| 2010 | 14.8 | 21.4% | — |
| 2011 | 23 | 33.2% | — |
| 2012 | 4.7 | 6.8% | — |
| 2013 | 0 | 0.0% | — |
| 2014 | 0 | 0.0% | — |
| 2015 | 0 | 0.1% | — |
| 2016 | 4.5 | 6.5% | — |
| 2017 | 31.9 | 46.1% | — |
| 2018 | 14.8 | 21.4% | — |
| 2019 | 10.5 | 15.2% | — |
| 2020 | 0.1 | 0.2% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 5.2 | 7.5% | — |
| 2024 | 0.2 | 0.3% | — |
| 2025 | 0 | 0.0% | — |
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 | 7.9 | 7.9 | May 1983 | Operating | — | coming soon |
Owner / operator
Operator: Metropolitan Water District of S CA. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Metropolitan Water District of S CA | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| EMWD - Moreno Valley RWRF | 2 MW | 4.6 km |
| Perris DC 5 - sline015 | 2 MW | 4.8 km |
| SunEdison Walgreens Moreno Valley | 1 MW | 5.5 km |
| EMWD - Perris Valley RWRF | 3 MW | 8.5 km |
| Menifee Power Bank | 680 MW | 10.9 km |
| Park Meridian #1 | 2 MW | 11.4 km |