White Rock/Slab Creek
El Dorado County, California · EIA plant ID 435 · Operator: Sacramento Municipal Util Dist
×1 MW hydro retired since 2020 (latest Oct 2025)
Nameplate269MWSummer 244 MW
Generators3in service
Net generation446GWh12 mo to Aug 2026
Capacity factor21%hydro units, summer MW
Heat rate—thermal plants only
First online1968
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), 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 | 167.6 | 8.5% | — |
| 2002 | 418.8 | 21.3% | — |
| 2003 | 487.3 | 24.8% | — |
| 2004 | 353 | 17.9% | — |
| 2005 | 718 | 36.6% | — |
| 2006 | 895.8 | 45.6% | — |
| 2007 | 300.8 | 14.2% | — |
| 2008 | 263.8 | 12.5% | — |
| 2009 | 459.6 | 21.8% | — |
| 2010 | 617.1 | 29.2% | — |
| 2011 | 928.9 | 44.0% | — |
| 2012 | 428.9 | 20.3% | — |
| 2013 | 293 | 13.9% | — |
| 2014 | 216.3 | 10.3% | — |
| 2015 | 143.6 | 6.8% | — |
| 2016 | 645.5 | 30.4% | — |
| 2017 | 681.7 | 32.2% | — |
| 2018 | 389.2 | 18.4% | — |
| 2019 | 780.6 | 36.9% | — |
| 2020 | 182.7 | 8.6% | — |
| 2021 | 150.8 | 7.0% | — |
| 2022 | 305.8 | 14.3% | — |
| 2023 | 838.7 | 39.2% | — |
| 2024 | 447.8 | 20.9% | — |
| 2025 | 449.1 | 21.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| H1 | Conventional Hydroelectric | HY | 133 | 108 | Jun 1968 | Operating | — | coming soon |
| H2 | Conventional Hydroelectric | HY | 133 | 133 | Feb 1968 | Operating | — | coming soon |
| H3 | Conventional Hydroelectric | HY | 2.7 | 2.7 | Dec 2020 | Operating | — | coming soon |
| H4 | Conventional Hydroelectric | HY | 0.5 | 0.5 | Jun 1983 | Retired Oct 2025 | — | coming soon |
Owner / operator
Operator: Sacramento Municipal Util Dist. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Sacramento Municipal Util Dist | 100.0% | 269 MW |
Nearby plants
Within 80 km.
| Rock Creek LP | 3 MW | 2.2 km |
| Chili Bar | 8 MW | 2.4 km |
| El Dorado County | 2 MW | 8.3 km |
| El Dorado | 20 MW | 14.9 km |
| Camino | 158 MW | 22.8 km |
| Deer Creek 2 | 1 MW | 22.9 km |