Rancho Seco Solar II, LLC
Sacramento County, California · EIA plant ID 63387 · Operator: Rancho Seco Solar II, LLC
Nameplate160MWSummer 160 MW
Generators1in service
Net generation269GWh12 mo to Aug 2026
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2021
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), 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) |
|---|---|---|---|
| 2021 | 322.3 | 25.1% | — |
| 2022 | 216.7 | 15.5% | — |
| 2023 | 171.1 | 12.2% | — |
| 2024 | 294.8 | 21.0% | — |
| 2025 | 275.1 | 19.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| RSS2 | Solar Photovoltaic | PV | 160 | 160 | Feb 2021 | Operating | — | coming soon |
Owner / operator
Operator: Rancho Seco Solar II, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Rancho Seco Solar II, LLC | 100.0% | 160 MW |
Nearby plants
Within 80 km.
| Dry Creek Energy Storage, LLC | — | 0.1 km |
| Rancho Seco Solar, LLC | 11 MW | 0.9 km |
| Cosumnes | 557 MW | 1 km |
| Sacramento Soleil LLC | 1 MW | 12.1 km |
| RE Dillard 4 LLC | 0 MW | 13.8 km |
| RE Dillard 3 LLC | 3 MW | 13.8 km |