Illinois vs Wisconsin electricity prices: 17.69 ¢ against 18.16 ¢ per kWh
42 places apart: Illinois #7, Wisconsin #49 of 51, the widest of 31 measures. CO2 per mwh of generation, lb Illinois 472, Wisconsin 1,157; clean share with nuclear Illinois 67.7%, Wisconsin 28.9%. Typical bills differ by $7 a month, higher in Illinois.
Over a year the typical energy bill differs by $81 ($128 a month in Illinois, $121 in Wisconsin). Since 2015 the home price rose +41.5% in Illinois and +28.7% in Wisconsin: 12.8 points more in Illinois. Against the U.S. home average Illinois sits at +2.3% and Wisconsin at +5.0%.
Illinois and Wisconsin on the map
Illinois against Wisconsin: widest gaps
| Measure | Illinois | Wisconsin | Gap | Rank (of 51) |
|---|---|---|---|---|
| Homes on retail supply | 25.0% | 0.0% | +25.0 points | #7 / #49 |
| CO2 per MWh of generation, lb | 472 | 1,157 | -685 | #40 / #9 |
| Clean share with nuclear | 67.7% | 28.9% | +38.7 points | #6 / #37 |
| Time-of-use utilities | 30% | 62% | -31.3 points | #36 / #13 |
| Hydro share of generation | 0.1% | 2.9% | -2.8 points | #46 / #24 |
| Price change since 2015 | +42% | +29% | +12.8 points | #11 / #32 |
| Price change, 2026 to date | +10.7% | +5.4% | +5.3 points | #12 / #33 |
| Price change 2024 to 2025 | +11.5% | +5.7% | +5.8 points | #4 / #22 |
| Petroleum share of generation | 0.0% | 0.2% | -0.2 points | #44 / #26 |
| Home solar per 1,000 accounts | 25.2 | 6.7 | +18 | #18 / #36 |
31 measures compared for Illinois and Wisconsin; the CSV holds the 10 widest.
CSVYour bill in Illinois and in Wisconsin
Illinois and Wisconsin: price over time
Home price, Illinois and Wisconsin, 2010 to 2025: 16 rows
| Year | Illinois | Wisconsin | Gap to U.S. |
|---|---|---|---|
| 2010 | 11.52 | 12.65 | -0.02 |
| 2011 | 11.78 | 13.02 | +0.06 |
| 2012 | 11.37 | 13.19 | -0.51 |
| 2013 | 10.63 | 13.55 | -1.50 |
| 2014 | 11.91 | 13.67 | -0.61 |
| 2015 | 12.50 | 14.11 | -0.15 |
| 2016 | 12.54 | 14.07 | -0.01 |
| 2017 | 12.95 | 14.35 | +0.06 |
| 2018 | 12.77 | 14.02 | -0.10 |
| 2019 | 13.03 | 14.18 | +0.02 |
| 2020 | 13.04 | 14.32 | -0.11 |
| 2021 | 13.18 | 14.52 | -0.48 |
| 2022 | 15.65 | 15.62 | +0.61 |
| 2023 | 15.71 | 16.88 | -0.29 |
| 2024 | 15.87 | 17.18 | -0.61 |
| 2025 | 17.69 | 18.16 | +0.39 |
Illinois 11.52 to 17.69 ¢ and Wisconsin 12.65 to 18.16 ¢ between 2010 and 2025 (EIA).
CSVWhere Illinois and Wisconsin are alike
- Average home use, kWh a month: 722 and 666
- Solar output per kW: 1,308 and 1,324
- Heat pump saving on gas: -51% and -63%
- Heat pump break-even COP: 4.54 and 4.88
- Home price 2025, ¢/kWh: 17.69 and 18.16
Sources and dates: data sources.
Questions
Is Illinois or Wisconsin higher on homes on retail supply?
Illinois, by 25.0 points; they rank #7 and #49 of 51.
Is Illinois or Wisconsin higher on CO2 per mwh of generation?
Wisconsin, by 685; they rank #40 and #9 of 51.
Is Illinois or Wisconsin higher on clean share with nuclear?
Illinois, by 38.7 points; they rank #6 and #37 of 51.
Is Illinois or Wisconsin higher on time-of-use utilities?
Wisconsin, by 31.3 points; they rank #36 and #13 of 51.
Is Illinois or Wisconsin higher on hydro share of generation?
Wisconsin, by 2.8 points; they rank #46 and #24 of 51.
What would 878 kWh a month cost in Illinois and in Wisconsin?
Illinois $155, Wisconsin $159: $4 apart, energy only.
Where do Illinois and Wisconsin match most closely?
average home use, kWh a month (722 and 666); solar output per kw (1,308 and 1,324); heat pump saving on gas (-51% and -63%).