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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.

Residential rate

14.8¢/kWh

EIA-861, 2024, bundled

Average bill

$123.21

per month, residential

Vs IL average

-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 usageRock Energy CooperativeIL 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

Rock Energy Cooperative rates by state

Rates and average bills differ in each state Rock Energy Cooperative serves.

StateRateAvg billCustomers
Illinois15.0¢/kWh$111.64/mo9,339
Wisconsin14.5¢/kWh$138.00/mo7,310

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.

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Frequently asked questions

Rock Energy Cooperative's average residential rate is 14.8¢/kWh (EIA-861, 2024). That's the effective bundled rate — total residential revenue divided by kWh sold — so it includes supply, delivery, and riders, not just the advertised energy charge.

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.

Estimate your electric billIllinois electricity ratesAverage electric bill in IllinoisOff-peak charging savingsAll utilities