Illinois commercial electricity rates
For 638,510 Illinois commercial accounts the 2024 average price was 11.81 cents per kWh on 45.2 TWh of sales.
In 2024 Illinois commercial accounts paid 11.81 ¢/kWh, rank 24 of 51 and 7.4% below the U.S. commercial price (12.75 ¢). A Illinois account using 5,904 kWh a month pays about $697. Since 2015 the Illinois price moved +30.9%.
Illinois sits 0.06 ¢ under Montana, the state above, and 0.10 ¢ over Colorado, the state below. At 5,904 kWh a month, energy in Illinois costs 273 dollars more than in North Dakota, the cheapest commercial state.
How it compares
| Commercial price | 2024 | 2015 | Change | Bill |
|---|---|---|---|---|
| Illinois | 11.81 ¢/kWhthis state | 9.02 ¢/kWh | +30.9% | $697at 5,904 kWh |
| Montana (next above) | 11.87 ¢/kWh+0.06 ¢ against Illinois | 10.23 ¢/kWh | +16.0% | $701at 5,904 kWh |
| Colorado (next below)Lowest in this table | 11.71 ¢/kWh-0.10 ¢ against Illinois | 9.88 ¢/kWh | +18.5% | $691at 5,904 kWh |
Illinois commercial: 2025 and 2026
Illinois commercial, data to August 2026.
- Illinois 2025 average price
- 13.10 ¢/kWh+10.9% against 2024, U.S. +4.9%
- Illinois 2025 rank
- 18 of 51+6 places against 2024
- Illinois January to Aug 2026
- 14.05 ¢/kWh+8.1% on Jan-Aug 2025
- Illinois Last 12 months
- 13.81 ¢/kWhto August 2026
- Illinois August 2026
- 14.67 ¢/kWh+5.2% against August 2025
- Illinois 2025 costliest month
- Sep 14.03 ¢cheapest Jan 11.88 ¢, a 18% spread
- Illinois Typical 2025 bill
- $785 a monthtop Jul $967, low Apr $683
The Illinois commercial price averaged 13.10 ¢/kWh in 2025, +10.9% on 2024: Illinois ran 6.1 points faster than the nation. From January to August 2026 the Illinois average is 14.05 ¢, +8.1% on 2025, 2.5 points above the U.S. change. Seasonality in Illinois: 2025 peaked in September at 14.03 ¢ and bottomed in January at 11.88 ¢. A typical commercial account in Illinois paid about $9,425 for energy over 2025, from $683 in April to $967 in July; use per account ran 5,329 to 7,056 kWh a month.
Illinois commercial price by month, 2024 to Aug 2026
Price by month, Illinois commercial: 12 rows
| Month | 2024 | 2025 | 2026 to Aug |
|---|---|---|---|
| Jan | 11.15 | 11.88 | 12.26 |
| Feb | 11.37 | 12.83 | 13.34 |
| Mar | 10.85 | 13.11 | 13.08 |
| Apr | 11.60 | 12.81 | 13.89 |
| May | 12.65 | 12.45 | 15.37 |
| Jun | 12.27 | 12.92 | 14.53 |
| Jul | 11.95 | 13.71 | 15.19 |
| Aug | 12.05 | 13.94 | 14.67 |
| Sep | 12.27 | 14.03 | No data |
| Oct | 12.29 | 13.68 | No data |
| Nov | 11.54 | 13.24 | No data |
| Dec | 11.77 | 12.44 | No data |
12 rows from EIA retail sales.
CSVWhat a typical Illinois commercial account paid each month
Illinois commercial: use per account times price, energy only.
Typical bill by month, Illinois commercial: 12 rows
| Month | 2025 | 2026 to Aug |
|---|---|---|
| Jan | 759 | 771 |
| Feb | 717 | 753 |
| Mar | 761 | 750 |
| Apr | 683 | 772 |
| May | 692 | 797 |
| Jun | 788 | 882 |
| Jul | 967 | 1051 |
| Aug | 940 | 922 |
| Sep | 822 | No data |
| Oct | 782 | No data |
| Nov | 731 | No data |
| Dec | 782 | No data |
12 rows from EIA retail sales.
CSVIllinois commercial charts
Commercial price, Illinois and U.S.
Illinois 9.02 ¢ in 2015 and 11.81 ¢ in 2024, 0.94 ¢ under the national figure.
Illinois commercial price against the national average, 2015 to 2024: 10 rows
| Year | Illinois commercial | Gap to U.S. commercial | Illinois residential |
|---|---|---|---|
| 2015 | 9.02 | -1.62 | 12.50 |
| 2016 | 9.02 | -1.41 | 12.54 |
| 2017 | 9.09 | -1.57 | 12.95 |
| 2018 | 9.12 | -1.55 | 12.77 |
| 2019 | 9.08 | -1.60 | 13.03 |
| 2020 | 9.15 | -1.44 | 13.04 |
| 2021 | 9.65 | -1.57 | 13.18 |
| 2022 | 11.32 | -1.09 | 15.65 |
| 2023 | 11.24 | -1.35 | 15.71 |
| 2024 | 11.81 | -0.94 | 15.87 |
10 rows from EIA retail sales.
CSVAnnual change
Biggest move +17.3% in 2022; latest +5.1%.
% vs prior year
- +0.02016
- +0.82017
- +0.32018
- -0.42019
- +0.82020
- +5.52021
- +17.32022
- -0.72023
- +5.12024
Year-over-year change, Illinois commercial price: EIA retail sales.
CSVAnalyst note
The Illinois commercial price sat above the U.S. average in 0 of 10 years; the gap was -1.62 ¢ in 2015 and -0.94 ¢ in 2024. In the 2024 ranking Illinois sits between Montana (11.87 ¢) one place above and Colorado (11.71 ¢) one place below; the top of the list is 26.37 ¢ away and the bottom 4.62 ¢. Illinois was 37th in 2015 with 9.02 ¢ and is 24th now; a rise in the table. Illinois commercial prices rose in 6 of 9 years. The largest rise was +17.3% in 2022, and the largest fall -0.7% in 2023. The Illinois price peaked at 11.81 ¢ in 2024 and bottomed at 9.02 ¢ in 2015; 2024 is the peak and +30.9% from the low. Compounded, that is +3.04% a year in Illinois, +1.01 points against the U.S. Illinois buys 3.12% of all U.S. commercial electricity with 3.28% of the accounts, so the average Illinois account uses 0.95 times the national average.
Illinois commercial customers paid 11.81 ¢ in 2024, which puts the state 24th of 51, a middle position, 0.94 ¢ under the U.S. Nine years moved the Illinois commercial price +30.9% (+3.0% a year), ahead of the U.S. by 11.1 points. The sharpest year was 2022 at +17.3%; the peak came in 2024.
The latest Illinois year moved +5.1%, so prices are still climbing. The Illinois residential price of 15.87 ¢ sits 4.06 ¢ above. A Illinois commercial account uses 5,904 kWh a month; priced at 11.81 ¢ that is about $697, and the sector buys 34.0% of Illinois's power.
Counting revenue instead of kWh, Illinois commercial accounts bring in 32.9% of Illinois sector revenue on 34.1% of the kWh, a discount of 1.2 points that comes from the price level: 11.81 ¢ here against 15.87 ¢ for residential and 8.83 ¢ for industrial accounts. The average Illinois commercial account uses 5,904 kWh a month, 21 of 51 among states on that measure; a residential account uses 0.12 times as much and an industrial account 105.97 times. Commercial accounts are 10.58% of the 6,036,673 accounts in Illinois.
Facts
- Commercial price 2024
- 11.81 ¢/kWh-7.4% against U.S.
- Price in 2015
- 9.02 ¢/kWh+30.9% to 2024
- Annual change
- +3.0%+1.0 points vs U.S.
- Rank
- 24 of 5127 states cost less
- Gap to U.S.
- -0.94 ¢$55.50 a month
- Peak year
- 202411.81 ¢; 2015 low 9.02 ¢
- Sales
- 45.2 TWh34.0% of state sales
- Commercial accounts
- 638,51050.31 per 1,000 residents
- Use per account
- 5,904 kWh/mo70,853 a year
- Implied monthly bill
- $697-$56 against U.S. rate
Data tables
Illinois, commercial: price by year
| Year | Illinois | U.S. | Change | Gap | Ratio |
|---|---|---|---|---|---|
| 2015 | 9.02 | 10.64 | No data | -1.62 | 0.848 |
| 2016 | 9.02 | 10.43 | +0.0% | -1.41 | 0.865 |
| 2017 | 9.09 | 10.66 | +0.8% | -1.57 | 0.853 |
| 2018 | 9.12 | 10.67 | +0.3% | -1.55 | 0.855 |
| 2019 | 9.08 | 10.68 | -0.4% | -1.60 | 0.850 |
| 2020 | 9.15 | 10.59 | +0.8% | -1.44 | 0.864 |
| 2021 | 9.65 | 11.22 | +5.5% | -1.57 | 0.860 |
| 2022 | 11.32 | 12.41 | +17.3% | -1.09 | 0.912 |
| 2023 | 11.24 | 12.59 | -0.7% | -1.35 | 0.893 |
| 2024 | 11.81 | 12.75 | +5.1% | -0.94 | 0.926 |
Illinois commercial: cost by use
| Monthly kWh | Illinois cost a month | Gap to U.S. rate in Illinois |
|---|---|---|
| 1,480 (0.25x the Illinois account) | $174.79 | -$13.91 |
| 2,950 (0.5x the Illinois account) | $348.39 | -$27.73 |
| 5,900 (1x the Illinois account) | $696.79 | -$55.46 |
| 8,860 (1.5x the Illinois account) | $1,046.37 | -$83.28 |
| 11,810 (2x the Illinois account) | $1,394.76 | -$111.01 |
| 23,620 (4x the Illinois account) | $2,789.52 | -$222.03 |
Illinois: the three sectors measured against commercial
| Sector | Illinois price ¢/kWh | Price vs commercial | Illinois kWh per account a month | Use vs commercial | Illinois revenue share | Illinois kWh share |
|---|---|---|---|---|---|---|
| Residential | 15.87 | 1.34x | 693 | 0.12x | 43.9% | 33.8% |
| Commercial (this page) | 11.81 | 1.00x | 5,904 | 1.00x | 32.9% | 34.1% |
| Industrial | 8.83 | 0.75x | 625,717 | 105.97x | 23.2% | 32.2% |
Questions on Illinois commercial
How much per kWh do Illinois commercial customers pay: 11.81 cents on average?
11.81 cents in 2024, -7.4% against the U.S. rate.
Is Illinois cheap or costly for commercial power?
24th of 51, with 27 places charging less.
What is the nine-year price trend for Illinois commercial power?
9.02 to 11.81 cents: +30.9% in total, +3.0% a year.
What is a typical monthly commercial bill in Illinois?
5,904 kWh at 11.81 cents, price times use, comes to $697.
How many commercial electricity accounts does Illinois have?
638,510 accounts, or 50.31 per 1,000 residents.
When were Illinois commercial prices highest since 2015?
2024 at 11.81 cents; the low was 9.02 cents in 2015.
What did Illinois commercial electricity cost in 2025?
Illinois averaged 13.10 cents per kWh, +10.9% against 11.81 in 2024, and 18 of 51 among states.
Are Illinois commercial electricity prices rising in 2026?
Illinois is +2.5 points against the U.S.: 14.05 cents from January to August 2026, +8.1% on 2025.
When in 2025 did Illinois commercial power cost most, September or January?
September at 14.03 cents in Illinois; January was the lowest at 11.88, a 18% spread.
Does Illinois commercial power cost more than the national average in 2026?
0.00 cents above the national average; Illinois 14.05 cents over January to August 2026, +8.1% on 2025.
More on Illinois commercial
- Illinois state hub23 utilities, 476 accounts per 1,000
- Illinois residential rates15.87 ¢, rank 19 of 51
- Illinois industrial rates8.83 ¢, rank 16 of 51