- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Tomahawk: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Tomahawk
Power plant · Hydro
Key facts
Power plant · Hydroran 47% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1938
- Net generation, 2025
- 10,737 MWh
- Grid
- 25 kV to Wisconsin Public Service Corp (MISO)
- Location
- Lincoln County, Wisconsin
- Operated by
- Wisconsin Public Service CorpSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 10,737
MWh - Fuel burned, 2025
- 36,634
MMBtu - Capacity factor, 2025
- 47.1
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 10,737 | 36,634 | 47.1% | — |
| 2024 | 10,750 | 36,680 | 47.1% | — |
| 2023 | 6,520 | 22,245 | 28.6% | — |
| 2022 | 11,559 | 39,439 | 50.7% | — |
| 2021 | 13,473 | 119,157 | 59.2% | — |
| 2020 | 15,090 | 132,295 | 66.1% | — |
| 2019 | 10,425 | 92,834 | 45.8% | — |
| 2018 | 15,478 | 140,912 | 68.0% | — |
| 2017 | 15,465 | 142,478 | 67.9% | — |
| 2016 | 15,505 | 143,143 | 67.9% | — |
| 2015 | 12,355 | 115,136 | 54.2% | — |
| 2014 | 14,255 | 135,566 | 62.6% | — |
| 2013 | 11,563 | 110,324 | 50.8% | — |
| 2012 | 7,820 | 74,416 | 34.2% | — |
| 2011 | 11,109 | 107,936 | 48.8% | — |
| 2010 | 10,232 | 99,824 | 44.9% | — |
| 2009 | 6,868 | 67,032 | 30.1% | — |
| 2008 | 8,639 | 85,129 | 37.8% | — |
| 2007 | 8,053 | 79,595 | 35.4% | — |
| 2006 | 9,907 | 98,269 | 43.5% | — |
| 2005 | 9,778 | 97,770 | 42.9% | — |
| 2004 | 12,276 | 123,030 | 53.8% | — |
| 2003 | 11,712 | 119,943 | 51.4% | — |
| 2002 | 15,196 | 154,589 | 66.7% | — |
| 2001 | 12,256 | 126,641 | 53.8% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.
Sources
2 sourcesSources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)