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
| Metric | Idaho | Illinois | National Avg |
|---|---|---|---|
| Residential Rate | 11.15¢/kWh | 16.27¢/kWh | 17.22¢/kWh |
| Commercial Rate | 8.69¢/kWh | 11.38¢/kWh | - |
| Industrial Rate | 6.87¢/kWh | 8.14¢/kWh | - |
| Avg Monthly Bill | $107 | $115 | $134 |
| Renewable Energy | 73.0% | 13.0% | ~22% |
| Primary Source | Hydroelectric | Nuclear | - |
Appliance Running Costs: Idaho vs Illinois
Monthly cost to run common household appliances in each state.
| Appliance | ID | IL | Savings |
|---|---|---|---|
| Air Purifier | $4.01 | $5.86 | ID saves $1.84 |
| Blender | $0.13 | $0.20 | ID saves $0.06 |
| CFL Bulb (13W) | $0.35 | $0.51 | ID saves $0.16 |
| Cable / Satellite Box | $2.81 | $4.10 | ID saves $1.29 |
| Ceiling Fan | $3.01 | $4.39 | ID saves $1.38 |
| Central Air Conditioner | $93.66 | $136.67 | ID saves $43.01 |
| Chest Freezer | $6.42 | $9.37 | ID saves $2.95 |
| Clothes Dryer (Electric) | $10.04 | $14.64 | ID saves $4.61 |
| Coffee Maker | $0.75 | $1.10 | ID saves $0.35 |
| Crypto Mining Rig | $120.42 | $175.72 | ID saves $55.30 |
| Dehumidifier | $12.04 | $17.57 | ID saves $5.53 |
| Desktop Computer | $5.35 | $7.81 | ID saves $2.46 |
| Dishwasher | $6.02 | $8.79 | ID saves $2.76 |
| Electric Baseboard Heater | $33.45 | $48.81 | ID saves $15.36 |
| Electric Fireplace | $18.73 | $27.33 | ID 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)