Cottage Grove CSG, LLC
Washington County, Minnesota · EIA plant ID 61483 · Operator: Ecoplexus, Inc
Nameplate5MWSummer 5 MW
Generators5in service
Net generation7GWh12 mo to Dec 2025
Capacity factor17%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2018 | 3.4 | 9.2% | — |
| 2019 | 6.1 | 14.0% | — |
| 2020 | 7.4 | 16.9% | — |
| 2021 | 8.5 | 19.4% | — |
| 2022 | 8.3 | 18.9% | — |
| 2023 | 8.3 | 18.9% | — |
| 2024 | 8.1 | 18.5% | — |
| 2025 | 7.3 | 16.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CTGR1 | Solar Photovoltaic | PV | 1 | 1 | Mar 2018 | Operating | — | coming soon |
| CTGR2 | Solar Photovoltaic | PV | 1 | 1 | Mar 2018 | Operating | — | coming soon |
| CTGR3 | Solar Photovoltaic | PV | 1 | 1 | Mar 2018 | Operating | — | coming soon |
| CTGR4 | Solar Photovoltaic | PV | 1 | 1 | Mar 2018 | Operating | — | coming soon |
| CTGR5 | Solar Photovoltaic | PV | 1 | 1 | Mar 2018 | Operating | — | coming soon |
Owner / operator
Operator: Ecoplexus, Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Ecoplexus, Inc | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| CGSun, LLC Community Solar | 4 MW | 0.7 km |
| Cottage Grove Project CSG | 5 MW | 5.7 km |
| LSP-Cottage Grove LP | 284 MW | 6 km |
| Woodbury Solar | 3 MW | 8.6 km |
| Hastings City Hydroelectric | 4 MW | 9.1 km |
| Hastings Solar | 5 MW | 10 km |