Robert O Schulz Solar Farm
Stanislaus County, California · EIA plant ID 57579 · Operator: South San Joaquin Irr District
Nameplate2MWSummer 2 MW
Generators2in service
Net generation4GWh12 mo to Dec 2025
Capacity factor24%solar units, summer MW
Heat rate—thermal plants only
First online2008
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), solar 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) |
|---|---|---|---|
| 2010 | 3 | 26.3% | — |
| 2011 | 2.9 | 25.6% | — |
| 2012 | 3 | 26.7% | — |
| 2013 | 3.1 | 26.9% | — |
| 2014 | 2.8 | 24.8% | — |
| 2015 | 2.9 | 25.8% | — |
| 2016 | 2.7 | 23.9% | — |
| 2017 | 2.9 | 25.2% | — |
| 2018 | 2.8 | 24.2% | — |
| 2019 | 2.7 | 23.8% | — |
| 2020 | 1.6 | 13.7% | — |
| 2021 | 2.2 | 19.0% | — |
| 2022 | 2.1 | 18.7% | — |
| 2023 | 1.7 | 14.9% | — |
| 2024 | 2.1 | 15.5% | — |
| 2025 | 3.9 | 25.0% | — |
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 | Solar Photovoltaic | PV | 0.9 | 1.1 | May 2008 | Operating | — | coming soon |
| 2 | Solar Photovoltaic | PV | 0.7 | 0.7 | May 2009 | Operating | — | coming soon |
Owner / operator
Operator: South San Joaquin Irr District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| South San Joaquin Irr District | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Woodward Power Plant | 3 MW | 1.1 km |
| Frankenheimer Power Plant | 5 MW | 8.1 km |
| Da Silva Dairy | 1 MW | 10.6 km |
| Central Valley Ag Power | 2 MW | 15.4 km |
| Axium Modesto Solar | 25 MW | 16.5 km |
| ERock MID Claribel Generation Station | 48 MW | 17.8 km |