Big Lake Project CSG
Sherburne County, Minnesota · EIA plant ID 61817 · Operator: Madison Energy Investments LLC
Nameplate5MWSummer 5 MW
Generators1in service
Net generation8GWh12 mo to Dec 2025
Capacity factor18%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 | 5.4 | 20.9% | — |
| 2019 | 8.7 | 19.8% | — |
| 2020 | 9.8 | 22.4% | — |
| 2021 | 8.7 | 19.8% | — |
| 2022 | 8.9 | 20.3% | — |
| 2023 | 7 | 16.1% | — |
| 2024 | 8.9 | 20.3% | — |
| 2025 | 7.7 | 17.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| BIGLA | Solar Photovoltaic | PV | 5 | 5 | Jun 2018 | Operating | — | coming soon |
Owner / operator
Operator: Madison Energy Investments LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Madison Energy Investments LLC | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Big Lake Holdco Solar CSG | 5 MW | 1.3 km |
| USS Big Lake 1 Solar CSG | 1 MW | 2.8 km |
| Monticello Nuclear Facility | 685 MW | 4.5 km |
| Sherco Solar II | 237 MW | 7.2 km |
| SolarClub 10 LLC | 1 MW | 7.4 km |
| Monticello Project CSG | 5 MW | 7.4 km |