Power plants planned and retiring in Wisconsin
Wisconsin plans 4,885 MW, 26% of its 18,500 MW in service (11th of 51). 1,188 MW is being built or tested; solar leads at 3,037 MW.
Wisconsin: planned against running
Wisconsin planned, by fuel
- Solar 3,037 MW (62%)
- Storage 319 MW (7%)
- Wind 67 MW (1%)
- Natural gas 1,462 MW (30%)
Wisconsin operating, by fuel
- Solar 2,551 MW (14%)
- Storage 312 MW (2%)
- Wind 826 MW (4%)
- Natural gas 7,606 MW (41%)
- Coal 4,736 MW (26%)
- Nuclear 1,190 MW (6%)
- Hydro 407 MW (2%)
- Oil 605 MW (3%)
- Other 268 MW (1%)
When Wisconsin capacity arrives and leaves
MW due online and retiring in Wisconsin, 2026 to 2035: 8 rows
| Year | Wisconsin planned MW | Wisconsin retiring MW |
|---|---|---|
| 2026 | 390 | No data |
| 2027 | 1065 | 617 |
| 2028 | 3070 | No data |
| 2029 | 360 | 1128 |
| 2030 | No data | 135 |
| 2033 | No data | 66 |
| 2034 | No data | 41 |
| 2035 | No data | 3 |
8 rows from EIA-860M.
CSVWisconsin projects dated after 2035 or without a year: 0 MW.
Where the Wisconsin projects are
Wisconsin: 17 counties shaded, darker for more planned MW.
Filter Wisconsin planned projects
Filter the 26 planned project lines in Wisconsin.
4,885 MW across 26 project lines, 26% of the 18,500 MW operating in Wisconsin.
- Vista Sands Solar, Portage: 1,182 MW solar, online 2028
- South Oak Creek, Milwaukee: 1,138 MW natural gas, online 2028
- Foundry Ridge Energy Center LLC, Walworth: 324 MW natural gas, online 2028
- High Noon Solar Energy LLC, Columbia: 300 MW solar, online 2027
- Koshkonong Solar Energy Center LLC, Dane: 300 MW solar, online 2026
What the Wisconsin numbers say
Wisconsin runs 18,500 MW today. The planned list would add 4,885 MW (26%) while 2,009 MW (11%) of operating units carry a retirement date. Through 2035, Wisconsin has 4,885 MW due online and 1,991 MW due to retire there.
Wisconsin planned mix: 70% solar, storage and wind, 30% natural gas. Wisconsin stages: 1,188 MW under construction or in testing, 168 MW permits received, not started, 2,905 MW permits pending, 624 MW early planning, no approvals started. Wisconsin retired 1,307 MW from 2021 to 2026 and has 1,911 MW on the canceled or postponed list.
Wisconsin capacity by fuel and status
| Wisconsin fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Wisconsin, MW |
|---|---|---|---|---|---|
| Solar | 2,551 | 3,037 | – | – | 4 |
| Storage | 312 | 319 | – | – | 75 |
| Wind | 826 | 67 | – | – | 150 |
| Natural gas | 7,606 | 1,462 | – | 362 | 1,604 |
| Coal | 4,736 | – | 1,744 | 804 | – |
| Nuclear | 1,190 | – | – | – | – |
| Hydro | 407 | – | 88 | 3 | – |
| Oil | 605 | – | 119 | 65 | – |
| Other | 268 | – | 58 | 74 | 78 |
| All fuels | 18,500 | 4,885 | 2,009 | 1,307 | 1,911 |
Wisconsin counties with the most planned capacity
| Wisconsin county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Portage County | 1,432 | 2 | Solar |
| Milwaukee County | 1,143 | 6 | Natural gas |
| Columbia County | 500 | 2 | Solar |
| Dane County | 361 | 4 | Solar |
| Waushara County | 360 | 2 | Storage |
| Walworth County | 324 | 3 | Natural gas |
| Jefferson County | 249 | 2 | Solar |
| Juneau County | 230 | 2 | Solar |
| St. Croix County | 101 | 1 | Solar |
| Sheboygan County | 99 | 1 | Storage |
Largest planned projects in Wisconsin
| Wisconsin plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Vista Sands Solar | Portage | Solar | Permits pending | 2028 | 1,182 |
| South Oak Creek | Milwaukee | Natural gas | Permits pending | 2028 | 1,138 |
| Foundry Ridge Energy Center LLC | Walworth | Natural gas | Early planning, no approvals started | 2028 | 324 |
| High Noon Solar Energy LLC | Columbia | Solar | Under construction or in testing | 2027 | 300 |
| Koshkonong Solar Energy Center LLC | Dane | Solar | Under construction or in testing | 2026 | 300 |
| Portage Solar, LLC | Portage | Solar | Under construction or in testing | 2027 | 250 |
| Emerald Bluffs Solar Park | Juneau | Solar | Permits pending | 2028 | 225 |
| Ursa Solar, LLC | Columbia | Solar | Early planning, no approvals started | 2027 | 200 |
| Dawn Break Solar | Waushara | Storage | Permits pending | 2029 | 180 |
| Dawn Break Solar | Waushara | Solar | Permits pending | 2029 | 180 |
Wisconsin against its neighbors
Wisconsin: planned MW equal 26% of operating. Bordering states: Iowa plans 4% of what it runs (22 points below Wisconsin); Illinois plans 16% of what it runs (11 points below Wisconsin); Michigan plans 15% of what it runs (11 points below Wisconsin); Minnesota plans 9% of what it runs (17 points below Wisconsin).
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Sources
EIA-860M inventory for Wisconsin: 677 operating generators, 26 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Wisconsin
Questions
Wisconsin: how much new power plant capacity is planned?
4,885 MW, 26% of the 18,500 MW Wisconsin runs. 1,188 MW is being built or tested in Wisconsin.
Wisconsin: what kind of power plants are planned?
Solar leads Wisconsin with 3,037 of 4,885 planned MW.
Wisconsin: which power plants are retiring?
2,009 MW of Wisconsin units have a retirement date, of which 1,744 MW is coal and 0 MW natural gas.
Will Wisconsin get all the planned plants?
Not necessarily. Wisconsin has 1,911 MW canceled or postponed, and 1,307 MW (coal the largest group) retired from 2021 to 2026.