Middleton Airport Solar
Dane County, Wisconsin · EIA plant ID 62731 · Operator: Madison Gas & Electric Co
Nameplate6MWSummer 6 MW
Generators1in service
Net generation7GWh12 mo to Dec 2025
Capacity factor15%solar units, summer MW
Heat rate—thermal plants only
First online2020
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) |
|---|---|---|---|
| 2020 | 3.8 | 17.1% | — |
| 2021 | 8.3 | 18.9% | — |
| 2022 | 7.9 | 16.0% | — |
| 2023 | 7.7 | 15.7% | — |
| 2024 | 8.2 | 16.7% | — |
| 2025 | 7.4 | 15.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 5.6 | 5.6 | Jul 2020 | Operating | — | coming soon |
Owner / operator
Operator: Madison Gas & Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Madison Gas & Electric Co | 100.0% | 6 MW |
Nearby plants
Within 80 km.
| GL Dairy Biogas | retired | 1.4 km |
| Middleton Biogas Solar, LLC | 2 MW | 1.4 km |
| West Middleton BESS | 7 MW | 4 km |
| West Campus Cogeneration Facility | 169 MW | 9.8 km |
| Pine Hill Solar | — | 10.5 km |
| Huiskamp BESS | 7 MW | 10.9 km |