Illinois vs Montana Electricity Rates (2026)
Montana has 21.3% cheaper electricity than Illinois. Montana residents pay 12.81¢/kWh compared to 16.27¢/kWh in Illinois, saving about $8.00/month on average.
Illinois
16.27¢
per kWh
$115/mo
Montana
12.81¢
per kWh
$107/mo
Detailed Rate Comparison
| Metric | Illinois | Montana | National Avg |
|---|---|---|---|
| Residential Rate | 16.27¢/kWh | 12.81¢/kWh | 17.22¢/kWh |
| Commercial Rate | 11.38¢/kWh | 10.92¢/kWh | - |
| Industrial Rate | 8.14¢/kWh | 6.35¢/kWh | - |
| Avg Monthly Bill | $115 | $107 | $134 |
| Renewable Energy | 13.0% | 48.0% | ~22% |
| Primary Source | Nuclear | Hydroelectric | - |
Appliance Running Costs: Illinois vs Montana
Monthly cost to run common household appliances in each state.
| Appliance | IL | MT | Savings |
|---|---|---|---|
| Air Purifier | $5.86 | $4.61 | MT saves $1.25 |
| Blender | $0.20 | $0.15 | MT saves $0.04 |
| CFL Bulb (13W) | $0.51 | $0.40 | MT saves $0.11 |
| Cable / Satellite Box | $4.10 | $3.23 | MT saves $0.87 |
| Ceiling Fan | $4.39 | $3.46 | MT saves $0.93 |
| Central Air Conditioner | $136.67 | $107.60 | MT saves $29.06 |
| Chest Freezer | $9.37 | $7.38 | MT saves $1.99 |
| Clothes Dryer (Electric) | $14.64 | $11.53 | MT saves $3.11 |
| Coffee Maker | $1.10 | $0.86 | MT saves $0.23 |
| Crypto Mining Rig | $175.72 | $138.35 | MT saves $37.37 |
| Dehumidifier | $17.57 | $13.83 | MT saves $3.74 |
| Desktop Computer | $7.81 | $6.15 | MT saves $1.66 |
| Dishwasher | $8.79 | $6.92 | MT saves $1.87 |
| Electric Baseboard Heater | $48.81 | $38.43 | MT saves $10.38 |
| Electric Fireplace | $27.33 | $21.52 | MT saves $5.81 |
Bottom Line: Illinois vs Montana
Montana is the more affordable state for electricity, with rates 21.3% lower than Illinois. An average household would save about $96.00/year by living in Montana.
Illinois gets its electricity primarily from Nuclear with 13.0% renewable, while Montana relies on Hydroelectric with 48.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Illinois or Montana?
Electricity is cheaper in Montana at 12.81¢/kWh compared to Illinois at 16.27¢/kWh. That's a 21.3% difference, saving about $8.00/month on an average residential bill.
What is the average electricity bill in Illinois vs Montana?
The average monthly electricity bill is $115 in Illinois and $107 in Montana. The national average is $134.
Which state uses more renewable energy, Illinois or Montana?
Montana has a higher renewable energy percentage at 48.0%, compared to 13.0% in Illinois.
What are the main energy sources in Illinois and Montana?
Illinois primarily uses Nuclear, while Montana relies on Hydroelectric.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)