Rock Energy Cooperative Rates: Average Bill & Price per kWh
Residential rates for Rock Energy Cooperative and how they compare to the Illinois average — 2024 EIA-861 annual data.
Residential customers of Rock Energy Cooperative average $111.64/month at 14.97¢/kWh — below the Illinois average of $142.84.
Where Rock Energy Cooperative rates are heading
Annual residential figures from Form EIA-861, 2019–2024.
| Year | Rate | Avg bill | Res. customers |
|---|---|---|---|
| 2019 | 13.68¢/kWh | $101.29/mo | 9,243 |
| 2020 | 13.3¢/kWh | $102.73/mo | 9,273 |
| 2021 | 13.13¢/kWh | $103.35/mo | 9,312 |
| 2022 | 14.25¢/kWh | $109.09/mo | 9,347 |
| 2023 | 14.55¢/kWh | $109.50/mo | 9,344 |
| 2024 | 14.97¢/kWh | $111.64/mo | 9,339 |
Rate context in Illinois
Statewide residential price trend (12 months) — context for Rock Energy Cooperative's 2024 annual figure.
Rock Energy Cooperative vs its state
Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.
| Measure | Rock Energy Cooperative | Illinois (latest month) |
|---|---|---|
| Avg bill | $111.64/mo | $142.84/mo |
| Rate | 14.97¢/kWh | 19.89¢/kWh |
Common questions
How much is the average electric bill with Rock Energy Cooperative?
Rock Energy Cooperative residential customers averaged $111.64 per month in 2024 (EIA-861 annual data) — about $1,339.65 per year.
What does Rock Energy Cooperative charge per kWh?
Rock Energy Cooperative averaged 14.97¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.
How does Rock Energy Cooperative compare to the Illinois average?
Rock Energy Cooperative bills average $111.64 — lower than the Illinois average of $142.84 (latest EIA month).
How many customers does Rock Energy Cooperative serve?
Rock Energy Cooperative served 9,339 residential customers in 2024, per EIA-861 — one of the largest utilities we track in IL.
Data: Form EIA-861, 2024 annual residential figures for Rock Energy Cooperative. Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.