Marshall Solar Energy Project
Lyon County, Minnesota · EIA plant ID 59875 · Operator: Marshall Solar Energy Project
Nameplate62MWSummer 62 MW
Generators1in service
Net generation98GWh12 mo to Aug 2026
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2017
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 | 111.7 | 20.5% | — |
| 2018 | 107.4 | 19.7% | — |
| 2019 | 96.6 | 17.7% | — |
| 2020 | 104.4 | 19.1% | — |
| 2021 | 97.3 | 17.8% | — |
| 2022 | 101.2 | 18.5% | — |
| 2023 | 104.3 | 19.1% | — |
| 2024 | 87.4 | 16.0% | — |
| 2025 | 96.6 | 17.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| PV1 | Solar Photovoltaic | PV | 62.3 | 62.3 | Jan 2017 | Operating | — | coming soon |
Owner / operator
Operator: Marshall Solar Energy Project. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Marshall Solar Energy Project | 100.0% | 62 MW |
Nearby plants
Within 80 km.
| Marshall Solar Plus LLC | 15 MW | 8.8 km |
| Marshall (MN) | 18 MW | 10.3 km |
| Novel Shelly Solar LLC (CSG) | 1 MW | 15.6 km |
| USS Wolf Solar LLC | 1 MW | 16.5 km |
| Marshall Wind 4 LLC | 4 MW | 19.8 km |
| Marshall Wind 3 LLC | 4 MW | 19.8 km |