Illinois vs Tennessee Electricity Rates (2026)
Tennessee has 20.7% cheaper electricity than Illinois. Tennessee residents pay 12.91¢/kWh compared to 16.27¢/kWh in Illinois, saving about $27.00/month on average.
Illinois
16.27¢
per kWh
$115/mo
Tennessee
12.91¢
per kWh
$142/mo
Detailed Rate Comparison
| Metric | Illinois | Tennessee | National Avg |
|---|---|---|---|
| Residential Rate | 16.27¢/kWh | 12.91¢/kWh | 17.22¢/kWh |
| Commercial Rate | 11.38¢/kWh | 11.38¢/kWh | - |
| Industrial Rate | 8.14¢/kWh | 7.33¢/kWh | - |
| Avg Monthly Bill | $115 | $142 | $134 |
| Renewable Energy | 13.0% | 13.0% | ~22% |
| Primary Source | Nuclear | Nuclear | - |
Appliance Running Costs: Illinois vs Tennessee
Monthly cost to run common household appliances in each state.
| Appliance | IL | TN | Savings |
|---|---|---|---|
| Air Purifier | $5.86 | $4.65 | TN saves $1.21 |
| Blender | $0.20 | $0.15 | TN saves $0.04 |
| CFL Bulb (13W) | $0.51 | $0.40 | TN saves $0.10 |
| Cable / Satellite Box | $4.10 | $3.25 | TN saves $0.85 |
| Ceiling Fan | $4.39 | $3.49 | TN saves $0.91 |
| Central Air Conditioner | $136.67 | $108.44 | TN saves $28.22 |
| Chest Freezer | $9.37 | $7.44 | TN saves $1.94 |
| Clothes Dryer (Electric) | $14.64 | $11.62 | TN saves $3.02 |
| Coffee Maker | $1.10 | $0.87 | TN saves $0.23 |
| Crypto Mining Rig | $175.72 | $139.43 | TN saves $36.29 |
| Dehumidifier | $17.57 | $13.94 | TN saves $3.63 |
| Desktop Computer | $7.81 | $6.20 | TN saves $1.61 |
| Dishwasher | $8.79 | $6.97 | TN saves $1.81 |
| Electric Baseboard Heater | $48.81 | $38.73 | TN saves $10.08 |
| Electric Fireplace | $27.33 | $21.69 | TN saves $5.64 |
Bottom Line: Illinois vs Tennessee
Tennessee is the more affordable state for electricity, with rates 20.7% lower than Illinois. An average household would save about $324.00/year by living in Tennessee.
Illinois gets its electricity primarily from Nuclear with 13.0% renewable, while Tennessee relies on Nuclear with 13.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Illinois or Tennessee?
Electricity is cheaper in Tennessee at 12.91¢/kWh compared to Illinois at 16.27¢/kWh. That's a 20.7% difference, saving about $27.00/month on an average residential bill.
What is the average electricity bill in Illinois vs Tennessee?
The average monthly electricity bill is $115 in Illinois and $142 in Tennessee. The national average is $134.
Which state uses more renewable energy, Illinois or Tennessee?
Tennessee has a higher renewable energy percentage at 13.0%, compared to 13.0% in Illinois.
What are the main energy sources in Illinois and Tennessee?
Illinois primarily uses Nuclear, while Tennessee relies on Nuclear.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)