Marshall Solar Plus LLC
Lyon County, Minnesota · EIA plant ID 67545 · Operator: Western Minnesota Mun Pwr Agny
Nameplate15MWSummer 15 MW
Generators2in service
Net generation17GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2024
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) |
|---|---|---|---|
| 2024 | 0.5 | 9.3% | — |
| 2025 | 17.2 | 21.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MARSL | Solar Photovoltaic | PV | 10 | 10 | Dec 2024 | Operating | — | coming soon |
| MARST | Batteries | BA | 5 | 5 | Dec 2024 | Operating | — | coming soon |
Owner / operator
Operator: Western Minnesota Mun Pwr Agny. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Western Minnesota Mun Pwr Agny | 100.0% | 15 MW |
Nearby plants
Within 80 km.
| Marshall (MN) | 18 MW | 2.8 km |
| Marshall Solar Energy Project | 62 MW | 8.8 km |
| Marshall Wind 4 LLC | 4 MW | 15.3 km |
| Marshall Wind 6 LLC | 2 MW | 16 km |
| Marshall Wind 5 LLC | 2 MW | 16.1 km |
| Marshall Wind 1 LLC | 2 MW | 16.3 km |