Kilbourn
Columbia County, Wisconsin · EIA plant ID 4053 · Operator: Wisconsin Power & Light Co
Nameplate10MWSummer 10 MW
Generators4in service
Net generation49GWh12 mo to Dec 2025
Capacity factor59%hydro units, summer MW
Heat rate—thermal plants only
First online1926
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), hydro 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) |
|---|---|---|---|
| 2001 | 53.9 | 77.0% | — |
| 2002 | 65.6 | 107.0% | — |
| 2003 | 48 | 68.5% | — |
| 2004 | 55.5 | 79.0% | — |
| 2005 | 49.5 | 70.6% | — |
| 2006 | 50.2 | 71.6% | — |
| 2007 | 49.1 | 93.5% | — |
| 2008 | 49.6 | 188.3% | — |
| 2009 | 42.3 | 161.1% | — |
| 2010 | 59.4 | 226.1% | — |
| 2011 | 57.7 | 69.4% | — |
| 2012 | 42.7 | 51.1% | — |
| 2013 | 54.1 | 65.0% | — |
| 2014 | 53 | 63.7% | — |
| 2015 | 50.6 | 60.8% | — |
| 2016 | 63.2 | 75.8% | — |
| 2017 | 60.8 | 73.1% | — |
| 2018 | 50.4 | 60.5% | — |
| 2019 | 42.7 | 51.3% | — |
| 2020 | 63.4 | 75.9% | — |
| 2021 | 63.8 | 76.6% | — |
| 2022 | 57.7 | 69.3% | — |
| 2023 | 54 | 64.9% | — |
| 2024 | 57.6 | 69.0% | — |
| 2025 | 49.2 | 59.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Conventional Hydroelectric | HY | 2.5 | 9.5 | Jul 1939 | Operating | — | coming soon |
| HC1 | Conventional Hydroelectric | HY | 2.2 | — | Jul 1926 | Operating | — | coming soon |
| HC5 | Conventional Hydroelectric | HY | 2.5 | — | Jul 1935 | Operating | — | coming soon |
| HC6 | Conventional Hydroelectric | HY | 2.5 | — | Jul 1937 | Operating | — | coming soon |
Owner / operator
Operator: Wisconsin Power & Light Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wisconsin Power & Light Co | 100.0% | 10 MW |
Nearby plants
Within 80 km.
| Lemonweir (Oak 1) | 3 MW | 22.5 km |
| Elroy Solar | 2 MW | 22.9 km |
| Emerald Bluffs Solar Park | — | 24.3 km |
| Portage Industrial Battery | 5 MW | 25 km |
| Castle Rock | 15 MW | 30 km |
| Columbia (WI) | 1,112 MW | 32.9 km |