Power plants planned and retiring in Illinois
Illinois plans 7,574 MW, 16% of its 48,717 MW in service (25th of 51). 2,888 MW is being built or tested; solar leads at 4,000 MW.
Illinois: planned against running
Illinois planned, by fuel
- Solar 4,000 MW (53%)
- Storage 160 MW (2%)
- Wind 2,342 MW (31%)
- Natural gas 1,048 MW (14%)
- Hydro 20 MW (0%)
- Oil 2 MW (0%)
Illinois operating, by fuel
- Solar 5,230 MW (11%)
- Storage 102 MW (0%)
- Wind 8,630 MW (18%)
- Natural gas 15,631 MW (32%)
- Coal 6,699 MW (14%)
- Nuclear 11,596 MW (24%)
- Hydro 33 MW (0%)
- Oil 662 MW (1%)
- Other 133 MW (0%)
When Illinois capacity arrives and leaves
MW due online and retiring in Illinois, 2026 to 2030: 5 rows
| Year | Illinois planned MW | Illinois retiring MW |
|---|---|---|
| 2026 | 1913 | No data |
| 2027 | 1772 | 2864 |
| 2028 | 1312 | No data |
| 2029 | 1528 | No data |
| 2030 | 1050 | No data |
5 rows from EIA-860M.
CSVIllinois projects dated after 2035 or without a year: 0 MW.
Where the Illinois projects are
Illinois: 58 counties shaded, darker for more planned MW.
Filter Illinois planned projects
Filter the 149 planned project lines in Illinois.
7,574 MW across 149 project lines, 16% of the 48,717 MW operating in Illinois.
- Steward Creek Solar Phase 1, Lee: 1,200 MW solar, online 2029
- Lincoln Land Energy Center, Sangamon: 1,040 MW natural gas, online 2030
- Illinois Generation LLC, Livingston: 616 MW wind, online 2028
- Panther Grove 2, Livingston: 472 MW wind, online 2027
- Panther Grove Wind, LLC, Woodford: 423 MW wind, online 2026
What the Illinois numbers say
Illinois runs 48,717 MW today. The planned list would add 7,574 MW (16%) while 2,864 MW (6%) of operating units carry a retirement date. Through 2035, Illinois has 7,574 MW due online and 2,864 MW due to retire there.
Illinois planned mix: 86% solar, storage and wind, 14% natural gas. Illinois stages: 2,888 MW under construction or in testing, 972 MW permits received, not started, 126 MW permits pending, 3,587 MW early planning, no approvals started. Illinois retired 5,962 MW from 2021 to 2026 and has 3,137 MW on the canceled or postponed list.
Illinois capacity by fuel and status
| Illinois fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Illinois, MW |
|---|---|---|---|---|---|
| Solar | 5,230 | 4,000 | – | – | 580 |
| Storage | 102 | 160 | – | 40 | 190 |
| Wind | 8,630 | 2,342 | – | 2 | 1,393 |
| Natural gas | 15,631 | 1,048 | – | 3,019 | 304 |
| Coal | 6,699 | – | 2,864 | 2,866 | 82 |
| Nuclear | 11,596 | – | – | – | – |
| Hydro | 33 | 20 | – | 1 | – |
| Oil | 662 | 2 | – | 9 | – |
| Other | 133 | – | – | 25 | 588 |
| All fuels | 48,717 | 7,574 | 2,864 | 5,962 | 3,137 |
Illinois counties with the most planned capacity
| Illinois county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Lee County | 1,200 | 1 | Solar |
| Livingston County | 1,096 | 4 | Wind |
| Sangamon County | 1,042 | 3 | Natural gas |
| Woodford County | 428 | 2 | Wind |
| Pulaski County | 405 | 1 | Solar |
| LaSalle County | 322 | 9 | Solar |
| Kankakee County | 320 | 5 | Solar |
| White County | 303 | 3 | Solar |
| Coles County | 300 | 1 | Wind |
| Shelby County | 250 | 1 | Solar |
Largest planned projects in Illinois
| Illinois plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Steward Creek Solar Phase 1 | Lee | Solar | Early planning, no approvals started | 2029 | 1,200 |
| Lincoln Land Energy Center | Sangamon | Natural gas | Early planning, no approvals started | 2030 | 1,040 |
| Illinois Generation LLC | Livingston | Wind | Permits received, not started | 2028 | 616 |
| Panther Grove 2 | Livingston | Wind | Under construction or in testing | 2027 | 472 |
| Panther Grove Wind, LLC | Woodford | Wind | Under construction or in testing | 2026 | 423 |
| Pulaski Solar | Pulaski | Solar | Under construction or in testing | 2026 | 405 |
| Coles Wind | Coles | Wind | Under construction or in testing | 2027 | 300 |
| Heritage Prairie Solar LLC | Kankakee | Solar | Permits received, not started | 2028 | 300 |
| Prairie Oak Solar | Shelby | Solar | Early planning, no approvals started | 2027 | 250 |
| Pike Creek Wind | Logan | Wind | Early planning, no approvals started | 2027 | 202 |
Illinois against its neighbors
Illinois: planned MW equal 16% of operating. Bordering states: Iowa plans 4% of what it runs (11 points below Illinois); Indiana plans 17% of what it runs (1 points above Illinois); Kentucky plans 16% of what it runs (1 points above Illinois); Missouri plans 16% of what it runs (1 points above Illinois); Wisconsin plans 26% of what it runs (11 points above Illinois).
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Sources
EIA-860M inventory for Illinois: 1,084 operating generators, 149 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Illinois
Questions
Illinois: how much new power plant capacity is planned?
7,574 MW, 16% of the 48,717 MW Illinois runs. 2,888 MW is being built or tested in Illinois.
Illinois: what kind of power plants are planned?
Solar leads Illinois with 4,000 of 7,574 planned MW.
Illinois: which power plants are retiring?
2,864 MW of Illinois units have a retirement date, of which 2,864 MW is coal and 0 MW natural gas.
Will Illinois get all the planned plants?
Not necessarily. Illinois has 3,137 MW canceled or postponed, and 5,962 MW (natural gas the largest group) retired from 2021 to 2026.