Illinois Electricity Rates (2026)
17.7¢/kWhstate average
9.2% above national averageUtilities in Illinois
Rate Outlook for Illinois
Illinois's average residential electricity rate is currently 17.7 cents/kWh. Under EIA's reference scenario, rates are projected to reach 20.9 cents/kWh by 2031 and 23.8 cents/kWh by 2036, a 34.5% change. Under the high oil price scenario, rates could reach 24.8 cents/kWh.
EIA projections for Illinois vs. actual observed rates
Projected residential electricity rates for Illinois (next 10 years)
| Year | Reference (¢/kWh) | High Price | Low Price |
|---|---|---|---|
| 2026 | 19.6 | 19.8 | 19.5 |
| 2027 | 18.9 | 19.2 | 18.9 |
| 2028 | 19.1 | 19.4 | 19.3 |
| 2029 | 19.7 | 19.8 | 19.8 |
| 2030 | 20.2 | 20.4 | 20.4 |
| 2031 | 20.9 | 21.2 | 21.2 |
| 2032 | 21.5 | 22.1 | 21.8 |
| 2033 | 22.4 | 23.0 | 22.5 |
| 2034 | 23.0 | 23.6 | 23.0 |
| 2035 | 23.5 | 24.2 | 23.4 |
| 2036 | 23.8 | 24.8 | 23.8 |
Data Sources: U.S. Energy Information Administration — Annual Energy Outlook (AEO2010, AEO2015, AEO2020, AEO2025) and Monthly Energy Review.
Methodology: State-level projections are derived by applying national rate trends from EIA's Annual Energy Outlook to Illinois's current observed rate. EIA does not publish state-level projections.
Freshness: This data is checked weekly against EIA's open data APIs. The Monthly Energy Review updates monthly with observed rates. The Annual Energy Outlook publishes new projections annually.