Koppelman Sun CSG
Blue Earth County, Minnesota · EIA plant ID 61381 · Operator: Geronimo Energy
Nameplate5MWSummer 5 MW
Generators5in service
Net generation9GWh12 mo to Dec 2025
Capacity factor22%solar units, summer MW
Heat rate—thermal plants only
First online2017
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 | 0.7 | 9.1% | — |
| 2018 | 8.7 | 19.9% | — |
| 2019 | 8.3 | 18.9% | — |
| 2020 | 8.6 | 19.6% | — |
| 2021 | 9.4 | 21.5% | — |
| 2022 | 9.2 | 20.9% | — |
| 2023 | 6.1 | 13.8% | — |
| 2024 | 8.1 | 18.4% | — |
| 2025 | 9.5 | 21.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| KOPP1 | Solar Photovoltaic | PV | 1 | 1 | Nov 2017 | Operating | — | coming soon |
| KOPP2 | Solar Photovoltaic | PV | 1 | 1 | Nov 2017 | Operating | — | coming soon |
| KOPP3 | Solar Photovoltaic | PV | 1 | 1 | Nov 2017 | Operating | — | coming soon |
| KOPP4 | Solar Photovoltaic | PV | 1 | 1 | Nov 2017 | Operating | — | coming soon |
| KOPP5 | Solar Photovoltaic | PV | 1 | 1 | Nov 2017 | Operating | — | coming soon |
Owner / operator
Operator: Geronimo Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Nordic Solar, LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| FastSun 14 CSG | 1 MW | 1 km |
| USS Peach Solar LLC | 1 MW | 2.9 km |
| Eastwood Solar | 6 MW | 4.5 km |
| Corvus Community Solar | 5 MW | 5.5 km |
| School Sisters CSG | 1 MW | 7.4 km |
| MN CSG 2019-16 LLC | 1 MW | 7.6 km |