Illinois · EIA utility 7554 · Energy supplier
Green Mountain Energy Company electricity rates in Illinois, 2025
Green Mountain Energy Company’s 6,670 residential customers paid an average of 13.29¢ per kWh in 2025, 25% below the Illinois average of 17.67¢. The typical home used 558 kWh a month, for an average bill of $74.
- 13.29¢avg ¢/kWh (2025)+0.73¢ (+5.8%) vs 2024
- $74Avg monthly billIllinois: $127
- 558 kWhAvg monthly useIllinois: 716 kWh
- 6,670Residential customersEnergy supplier
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 6,670 | 44,635 | $5,931,600 | 13.29¢ | 12.56¢ | +0.73¢ (+5.8%) |
| Commercial | 2 | 139 | $18,200 | 13.09¢ | 12.64¢ | +0.46¢ (+3.6%) |
| Industrial | 0 | 0 | $0 | n/a | n/a | n/a |
| All sectors | 6,672 | 44,774 | $5,949,800 | 13.29¢ | 12.56¢ | +0.73¢ (+5.8%) |
How Green Mountain Energy Company compares
- Illinois residential average, 2025: 17.67¢ per kWh, 716 kWh a month, $127 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 39 energy suppliers in Illinois with at least 1,000 residential customers, Green Mountain Energy Company ranks 26 of 39 from lowest to highest average price.
- Latest monthly figure: Illinois homes paid 19.32¢ per kWh in August 2026 (preliminary), against 18.03¢ in August 2025. Summer months often run higher than the annual average.
- From 2024 to 2025 this average rose 5.8%; the state average rose 11.3%.
- Green Mountain Energy Company is a retail energy provider that sells electricity supply in a state with retail choice. Balancing authority: PJM.
Illinois energy suppliers with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| Viridian Energy PA LLC | 12.51¢ | $82 | 2,824 |
| SmartEnergy Holdings, LLC | 12.51¢ | $66 | 38,988 |
| Interstate Gas Supply, Inc. | 12.73¢ | $78 | 22,865 |
| Stream Energy Illinois, LLC | 12.89¢ | $75 | 2,415 |
| Energy Plus Holdings LLC | 13.13¢ | $78 | 5,466 |
| Energy Services Providers, Inc | 13.28¢ | $87 | 30,668 |
| Nordic Energy Services, LLC | 13.97¢ | $73 | 15,715 |
| Eligo Energy, LLC | 13.99¢ | $104 | 3,452 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.