Best Electricity Rates in Illinois 2026: Compare Suppliers in Chicago and Beyond
Illinois has one of the largest deregulated electricity markets in the Midwest. ComEd (northern Illinois) and Ameren (central/southern) customers can choose an Alternative Retail Electric Supplier (ARES).
Illinois Price to Compare (PTC) Rates
| Utility | 2026 Average PTC |
|---|---|
| ComEd (northern IL) | ~6.7¢/kWh |
| Ameren Illinois (central/southern) | ~5.9¢/kWh |
Best Electricity Suppliers in Illinois 2026
Constellation Energy — one of the most established ARES in Illinois. Competitive fixed rates for residential and small business. Spark Energy — aggressive pricing, often competitive with or below the PTC. Verde Energy — green-focused supplier with competitive rates and 100% renewable options. Homefield Energy — newer provider with strong Illinois presence and good billing clarity.
Illinois Rate Tips for 2026
Watch your renewal date — most ARES contracts auto-renew at variable rates. Verify the supplier is ICC-certified at icc.illinois.gov before signing. You cannot be charged a switching fee by your utility under Illinois deregulation law.