Idaho vs South Carolina Electricity Rates (2026)
Idaho has 22.7% cheaper electricity than South Carolina. Idaho residents pay 11.15¢/kWh compared to 14.43¢/kWh in South Carolina, saving about $48.00/month on average.
Idaho
11.15¢
per kWh
$107/mo
South Carolina
14.43¢
per kWh
$155/mo
Detailed Rate Comparison
| Metric | Idaho | South Carolina | National Avg |
|---|---|---|---|
| Residential Rate | 11.15¢/kWh | 14.43¢/kWh | 17.22¢/kWh |
| Commercial Rate | 8.69¢/kWh | 11.69¢/kWh | - |
| Industrial Rate | 6.87¢/kWh | 6.77¢/kWh | - |
| Avg Monthly Bill | $107 | $155 | $134 |
| Renewable Energy | 73.0% | 9.0% | ~22% |
| Primary Source | Hydroelectric | Nuclear | - |
Appliance Running Costs: Idaho vs South Carolina
Monthly cost to run common household appliances in each state.
| Appliance | ID | SC | Savings |
|---|---|---|---|
| Air Purifier | $4.01 | $5.19 | ID saves $1.18 |
| Blender | $0.13 | $0.17 | ID saves $0.04 |
| CFL Bulb (13W) | $0.35 | $0.45 | ID saves $0.10 |
| Cable / Satellite Box | $2.81 | $3.64 | ID saves $0.83 |
| Ceiling Fan | $3.01 | $3.90 | ID saves $0.89 |
| Central Air Conditioner | $93.66 | $121.21 | ID saves $27.55 |
| Chest Freezer | $6.42 | $8.31 | ID saves $1.89 |
| Clothes Dryer (Electric) | $10.04 | $12.99 | ID saves $2.95 |
| Coffee Maker | $0.75 | $0.97 | ID saves $0.22 |
| Crypto Mining Rig | $120.42 | $155.84 | ID saves $35.42 |
| Dehumidifier | $12.04 | $15.58 | ID saves $3.54 |
| Desktop Computer | $5.35 | $6.93 | ID saves $1.57 |
| Dishwasher | $6.02 | $7.79 | ID saves $1.77 |
| Electric Baseboard Heater | $33.45 | $43.29 | ID saves $9.84 |
| Electric Fireplace | $18.73 | $24.24 | ID saves $5.51 |
Bottom Line: Idaho vs South Carolina
Idaho is the more affordable state for electricity, with rates 22.7% lower than South Carolina. An average household would save about $576.00/year by living in Idaho.
Idaho gets its electricity primarily from Hydroelectric with 73.0% renewable, while South Carolina relies on Nuclear with 9.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Idaho or South Carolina?
Electricity is cheaper in Idaho at 11.15¢/kWh compared to South Carolina at 14.43¢/kWh. That's a 22.7% difference, saving about $48.00/month on an average residential bill.
What is the average electricity bill in Idaho vs South Carolina?
The average monthly electricity bill is $107 in Idaho and $155 in South Carolina. The national average is $134.
Which state uses more renewable energy, Idaho or South Carolina?
Idaho has a higher renewable energy percentage at 73.0%, compared to 9.0% in South Carolina.
What are the main energy sources in Idaho and South Carolina?
Idaho primarily uses Hydroelectric, while South Carolina relies on Nuclear.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)