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Idaho vs Illinois Electricity Rates (2026)

Idaho has 31.5% cheaper electricity than Illinois. Idaho residents pay 11.15¢/kWh compared to 16.27¢/kWh in Illinois, saving about $8.00/month on average.

Idaho

11.15¢

per kWh

$107/mo

Illinois

16.27¢

per kWh

$115/mo

Detailed Rate Comparison

MetricIdahoIllinoisNational Avg
Residential Rate11.15¢/kWh16.27¢/kWh17.22¢/kWh
Commercial Rate8.69¢/kWh11.38¢/kWh-
Industrial Rate6.87¢/kWh8.14¢/kWh-
Avg Monthly Bill$107$115$134
Renewable Energy73.0%13.0%~22%
Primary SourceHydroelectricNuclear-

Appliance Running Costs: Idaho vs Illinois

Monthly cost to run common household appliances in each state.

ApplianceIDILSavings
Air Purifier$4.01$5.86ID saves $1.84
Blender$0.13$0.20ID saves $0.06
CFL Bulb (13W)$0.35$0.51ID saves $0.16
Cable / Satellite Box$2.81$4.10ID saves $1.29
Ceiling Fan$3.01$4.39ID saves $1.38
Central Air Conditioner$93.66$136.67ID saves $43.01
Chest Freezer$6.42$9.37ID saves $2.95
Clothes Dryer (Electric)$10.04$14.64ID saves $4.61
Coffee Maker$0.75$1.10ID saves $0.35
Crypto Mining Rig$120.42$175.72ID saves $55.30
Dehumidifier$12.04$17.57ID saves $5.53
Desktop Computer$5.35$7.81ID saves $2.46
Dishwasher$6.02$8.79ID saves $2.76
Electric Baseboard Heater$33.45$48.81ID saves $15.36
Electric Fireplace$18.73$27.33ID saves $8.60

Bottom Line: Idaho vs Illinois

Idaho is the more affordable state for electricity, with rates 31.5% lower than Illinois. An average household would save about $96.00/year by living in Idaho.

Idaho gets its electricity primarily from Hydroelectric with 73.0% renewable, while Illinois relies on Nuclear with 13.0% renewable.

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Frequently Asked Questions

Is electricity cheaper in Idaho or Illinois?

Electricity is cheaper in Idaho at 11.15¢/kWh compared to Illinois at 16.27¢/kWh. That's a 31.5% difference, saving about $8.00/month on an average residential bill.

What is the average electricity bill in Idaho vs Illinois?

The average monthly electricity bill is $107 in Idaho and $115 in Illinois. The national average is $134.

Which state uses more renewable energy, Idaho or Illinois?

Idaho has a higher renewable energy percentage at 73.0%, compared to 13.0% in Illinois.

What are the main energy sources in Idaho and Illinois?

Idaho primarily uses Hydroelectric, while Illinois relies on Nuclear.

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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)