Midway Solar Farm 1
Imperial County, California · EIA plant ID 60336 · Operator: 83WI 8ME, LLC
Nameplate50MWSummer 50 MW
Generators1in service
Net generation92GWh12 mo to Aug 2026
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2017 | 0 | — | — |
| 2018 | 140.8 | 32.2% | — |
| 2019 | 130 | 29.7% | — |
| 2020 | 105.6 | 24.1% | — |
| 2021 | 126.4 | 28.9% | — |
| 2022 | 123.4 | 28.2% | — |
| 2023 | 123.2 | 28.1% | — |
| 2024 | 121.1 | 27.6% | — |
| 2025 | 108.2 | 24.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MSF1 | Solar Photovoltaic | PV | 50 | 50 | Jan 2018 | Operating | — | coming soon |
Owner / operator
Operator: 83WI 8ME, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| 83WI 8ME, LLC | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| CE Leathers | 46 MW | 0.7 km |
| Elmore Company | 46 MW | 2.8 km |
| John L. Featherstone Plant | 55 MW | 3.1 km |
| Midway Solar Farm III | 20 MW | 3.6 km |
| Calipatria Solar Farm | 20 MW | 4 km |
| Midway Solar Farm II | 30 MW | 4.2 km |