Rock Energy Cooperative Electricity Rates
Rock Energy Cooperative residential customers pay an average of 14.8¢/kWh (EIA-861, 2024, bundled service), or about $123.21 per month, 6% below the Illinois state average. See what your bill looks like at that rate below.
14.8¢/kWh
EIA-861, 2024, bundled
$123.21
per month, residential
-6%
15.9¢/kWh state avg
What a Rock Energy Cooperative bill looks like by usage
Monthly cost at Rock Energy Cooperative's effective 14.8¢/kWh rate vs the Illinois average of 15.9¢/kWh. U.S. homes average about 863 kWh/month.
| Monthly usage | Rock Energy Cooperative | IL average |
|---|---|---|
| 500 kWh | $73.75 | $79.35 |
| 750 kWh | $110.63 | $119.03 |
| 1,000 kWh | $147.50 | $158.70 |
| 1,250 kWh | $184.38 | $198.38 |
| 1,500 kWh | $221.26 | $238.05 |
| 2,000 kWh | $295.01 | $317.40 |
Find what drives your Rock Energy Cooperative bill
Rates and averages explain the price of a kilowatt-hour, not how many you use. A plug-in energy meter logs what one corded 120 V appliance really draws over a week. A whole-home monitor logs every circuit at once, so the biggest loads on your own bill show up by name. Its sensors clip on inside the panel, which is work for an electrician if that isn't you.
We earn a commission if you buy through links on this page, at no extra cost to you. It does not change what we recommend. See our affiliate disclosure. As an Amazon Associate I earn from qualifying purchases.
Plug-in power meter
P3 International Kill A Watt P4400
Best for: Measuring what one plug-in appliance really uses
Whole-home energy monitor
Emporia Vue 3 Home Energy Monitor (16 circuit sensors)
Best for: Measuring hardwired and 240 V loads, or every circuit at once
Rock Energy Cooperative rates by state
Rates and average bills differ in each state Rock Energy Cooperative serves.
EV charging cost on Rock Energy Cooperative
Rate is pre-filled to Rock Energy Cooperative's 14.8¢/kWh. Enter your car's battery size.
Frequently asked questions
Other utilities in Illinois
Think your Rock Energy Cooperative bill is too high?
Start with our guide to estimating and lowering your electric bill, then find the culprits with the appliance running-cost tables. EV driver on a time-of-use plan? See off-peak EV charging.
Cite or link to this pageAPA · MLA · Chicago · HTML
Free to cite, quote and link. Copy a ready-made citation: the link back is all we ask.
- APA
WattSimple. (2026, September 15). Rock Energy Cooperative Electricity Rates. https://wattsimple.com/utility-rates/rock-energy-cooperative
- MLA
"Rock Energy Cooperative Electricity Rates." WattSimple, 15 Sept. 2026, https://wattsimple.com/utility-rates/rock-energy-cooperative.
- Chicago
WattSimple. "Rock Energy Cooperative Electricity Rates." Last modified September 15, 2026. https://wattsimple.com/utility-rates/rock-energy-cooperative.
- HTML link
<a href="https://wattsimple.com/utility-rates/rock-energy-cooperative">Rock Energy Cooperative Electricity Rates</a> (WattSimple)

