Custer Energy Center
Manitowoc County, Wisconsin · EIA plant ID 7795 · Operator: Manitowoc Public Utilities
Nameplate25MWSummer 22 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor2%gas/coal/oil units, summer MW
Heat rate16,678Btu/kWhfossil units, electric fuel, HHV
First online1999Runs as peaking
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 1.1 | 0.7% | 15,657 |
| 2002 | 0.4 | 0.2% | 15,107 |
| 2003 | 0 | 0.0% | 18,944 |
| 2004 | 0 | 0.0% | — |
| 2005 | 0.6 | 0.3% | 14,270 |
| 2006 | 1 | 0.5% | 17,010 |
| 2007 | 0.4 | 0.2% | 17,955 |
| 2008 | 0.1 | 0.0% | 18,360 |
| 2009 | 0.1 | 0.0% | 16,859 |
| 2010 | 0.5 | 0.3% | 15,881 |
| 2011 | 0.1 | 0.0% | 19,813 |
| 2012 | 0.4 | 0.2% | 17,052 |
| 2013 | 0.7 | 0.3% | 16,456 |
| 2014 | 0.4 | 0.2% | 15,196 |
| 2015 | 0.1 | 0.1% | 18,904 |
| 2016 | 0.3 | 0.2% | 17,780 |
| 2017 | 2.5 | 1.3% | 17,666 |
| 2018 | 1.6 | 0.9% | 16,087 |
| 2019 | 1.3 | 0.7% | 17,764 |
| 2020 | 0.6 | 0.3% | 16,683 |
| 2021 | 2.3 | 1.2% | 17,952 |
| 2022 | 1 | 0.5% | 16,901 |
| 2023 | 2.4 | 1.2% | 15,548 |
| 2024 | 5.5 | 2.9% | 14,623 |
| 2025 | 4.1 | 2.1% | 16,678 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusListed in EIA-860, no liquid burn in 36 months
Liquid fuel burned · 36 mo0 MMBtu
Last month with liquid burn—
Switch while operatingYes
Net summer MW on gas22
Net summer MW on oil22
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 | Natural Gas Fired Combustion Turbine | GT | 24.5 | 22 | Jun 1999 | Operating | — | coming soon |
Owner / operator
Operator: Manitowoc Public Utilities. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Manitowoc Public Utilities | 100.0% | 25 MW |
Nearby plants
Within 80 km.
| Manitowoc | 117 MW | 5.6 km |
| Ridgeview | 5 MW | 12.9 km |
| Two Creeks Solar | 150 MW | 23.3 km |
| Point Beach Solar | 100 MW | 25.9 km |
| Point Beach Nuclear Plant | 1,311 MW | 26.4 km |
| Holsum Irish Dairy | retired | 28.9 km |