Which state has cheaper electricity: California or Illinois?

Illinois has cheaper electricity. At 900 kWh/month, the estimated bill is $147.24 in Illinois vs $272.61 in California—about 85.1% less.

How much more expensive is electricity in California?

At 900 kWh/month, electricity in California costs about $125.37 more per month than in Illinois—roughly 85.1% higher.

Why do electricity prices vary between states?

Electricity prices vary due to generation mix (coal, gas, nuclear, renewables), transmission costs, regulations, taxes, and demand. States with more hydropower or natural gas often have lower rates; those relying on imported power or with higher renewable mandates may have higher rates.

Electricity Cost: California vs Illinois

Electricity in California costs approximately 85% more than in Illinois based on typical household electricity use. California averages 30.29¢/kWh and Illinois averages 16.36¢/kWh, putting a typical 900 kWh monthly bill at $273 vs $147.

Based on average residential rates from EIA data · 900 kWh standard usage benchmark

California rate

30.29 ¢/kWh

Illinois rate

16.36 ¢/kWh

California 900 kWh bill

$272.61

Illinois 900 kWh bill

$147.24

Comparison

State	Electricity rate	Estimated monthly bill
California	30.29 ¢/kWh	$272.61
Illinois	16.36 ¢/kWh	$147.24

Difference Summary

Electricity in California costs approximately 85% more than in Illinois based on typical household electricity use.

Difference: +$125.37 (+85.1%) at 900 kWh/month

Monthly Bill Comparison

California vs Illinois

Frequently Asked Questions

Which state has cheaper electricity: California or Illinois?: Illinois has cheaper electricity. At 900 kWh/month, the estimated bill is $147.24 in Illinois vs $272.61 in California—about 85.1% less.
How much more expensive is electricity in California?: At 900 kWh/month, electricity in California costs about $125.37 more per month than in Illinois—roughly 85.1% higher.
Why do electricity prices vary between states?: Electricity prices vary due to generation mix (coal, gas, nuclear, renewables), transmission costs, regulations, taxes, and demand. States with more hydropower or natural gas often have lower rates; those relying on imported power or with higher renewable mandates may have higher rates.