Don Pedro
Tuolumne County, California · EIA plant ID 439 · Operator: Turlock Irrigation District
Nameplate171MWSummer 203 MW
Generators4in service
Net generation288GWh12 mo to Aug 2026
Capacity factor16%hydro units, summer MW
Heat rate—thermal plants only
First online1971
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 | 304.1 | 17.1% | — |
| 2002 | 261.3 | 14.7% | — |
| 2003 | 277 | 15.6% | — |
| 2004 | 334.8 | 18.8% | — |
| 2005 | 637.7 | 35.8% | — |
| 2006 | 667.9 | 37.5% | — |
| 2007 | 288.9 | 16.2% | — |
| 2008 | 226.7 | 12.7% | — |
| 2009 | 259.1 | 14.5% | — |
| 2010 | 527.9 | 29.7% | — |
| 2011 | 713.7 | 40.1% | — |
| 2012 | 301.2 | 16.9% | — |
| 2013 | 250.1 | 14.1% | — |
| 2014 | 155.8 | 8.8% | — |
| 2015 | 145.2 | 8.2% | — |
| 2016 | 224.1 | 12.6% | — |
| 2017 | 563.3 | 31.6% | — |
| 2018 | 293.6 | 16.5% | — |
| 2019 | 359.3 | 20.2% | — |
| 2020 | 241.7 | 13.5% | — |
| 2021 | 175.5 | 9.9% | — |
| 2022 | 165.5 | 9.3% | — |
| 2023 | 538.3 | 30.2% | — |
| 2024 | 474.7 | 26.6% | — |
| 2025 | 279.9 | 15.7% | — |
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 | 45.5 | 55 | May 1971 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 45.5 | 55 | May 1971 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 45.5 | 55 | May 1971 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 34.3 | 38.2 | Apr 1989 | Operating | — | coming soon |
Owner / operator
Operator: Turlock Irrigation District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Turlock Irrigation District | 68.5% | 117 MW |
| Modesto Irrigation District | 31.5% | 54 MW |
Nearby plants
Within 80 km.
| La Grange | 5 MW | 3.6 km |
| Upper Dawson | 4 MW | 6.7 km |
| Moccasin Low Head Hydro Project | 3 MW | 16.4 km |
| Moccasin | 104 MW | 16.5 km |
| Turlock Lake | 3 MW | 18 km |
| Exchequer | 95 MW | 18.2 km |