Fort Rock IV
Lake County, Oregon · EIA plant ID 63926 · Operator: Fort Rock Solar IV LLC
Nameplate10MWSummer 10 MW
Generators1in service
Net generation24GWh12 mo to Dec 2025
Capacity factor27%solar units, summer MW
Heat rate—thermal plants only
First online2020
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) |
|---|---|---|---|
| 2020 | 14 | 27.3% | — |
| 2021 | 24.7 | 28.2% | — |
| 2022 | 20.5 | 23.3% | — |
| 2023 | 22.7 | 25.9% | — |
| 2024 | 24 | 27.4% | — |
| 2025 | 24.1 | 27.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| FRIV | Solar Photovoltaic | PV | 10 | 10 | Jun 2020 | Operating | — | coming soon |
Owner / operator
Operator: Fort Rock Solar IV LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Fort Rock Solar IV LLC | 100.0% | 10 MW |
Nearby plants
Within 80 km.
| Rock Garden Solar, LLC | 10 MW | 2.2 km |
| Fort Rock I | 10 MW | 8.7 km |
| Alkali Solar, LLC | 10 MW | 8.7 km |
| Obsidian Solar Center | — | 13.9 km |
| Outback Solar At Christmas Valley | 4 MW | 41.4 km |
| Siphon Power Project | 5 MW | 77.6 km |