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Illinois Energy

Gas prices, electricity rates, utilities, power plants, heating costs and EV charging in Illinois, from EIA, EPA and the Department of Energy.

Regular gas, region
$4.15/gal
Week of 10/19/2026
Home electricity
19.22¢/kWh
July 2026
Average electric bill
$127/mo
2025
EV charging stations
1,961
6,466 ports

Prices

Power plants

52.8 GW of operating capacity

All plants
  • Natural gas18.0 GW 34.1%
  • Nuclear12.4 GW 23.5%
  • Wind8.7 GW 16.4%
  • Coal7.4 GW 14.0%
  • Solar5.2 GW 9.9%
  • Petroleum758 MW 1.4%
  • Other121 MW 0.2%
  • Battery storage102 MW 0.2%
  • Biomass61.3 MW 0.1%
  • Hydroelectric38.3 MW 0.1%

Generated 177.7 TWh in 2023 with 68.4% from carbon-free sources. CO2 rate 472 lb/MWh. Solar, wind and batteries

Largest electric utilities

By customers, 2025

All 79

Swipe the table sideways to see more columns.

EV charging by city

884 alternative fuel stations too

All cities

Energy by county

Utilities, power plants and charging stations in each county

Frequently asked questions

How much does electricity cost in Illinois?
Homes in Illinois paid an average of 19.22¢/kWh per kilowatt-hour in July 2026, compared with the U.S. average of 18.31¢/kWh.
What is the price of gas in Illinois?
EIA does not publish a weekly Illinois average. The Midwest (PADD 2) average was $4.15/gal the week of 10/19/2026.
Where does Illinois's electricity come from?
In 2023, 68.4% of the electricity generated in Illinois came from carbon-free sources (nuclear and renewables), and 13.5% from renewables alone.