Connecticut vs South Dakota Electricity Rates (2026)
South Dakota has 54.2% cheaper electricity than Connecticut. South Dakota residents pay 13.74¢/kWh compared to 29.98¢/kWh in Connecticut, saving about $43.00/month on average.
Connecticut
29.98¢
per kWh
$176/mo
South Dakota
13.74¢
per kWh
$133/mo
Detailed Rate Comparison
| Metric | Connecticut | South Dakota | National Avg |
|---|---|---|---|
| Residential Rate | 29.98¢/kWh | 13.74¢/kWh | 17.22¢/kWh |
| Commercial Rate | 22.54¢/kWh | 11.52¢/kWh | - |
| Industrial Rate | 19.43¢/kWh | 9.11¢/kWh | - |
| Avg Monthly Bill | $176 | $133 | $134 |
| Renewable Energy | 6.0% | 35.0% | ~22% |
| Primary Source | Natural Gas | Wind | - |
Appliance Running Costs: Connecticut vs South Dakota
Monthly cost to run common household appliances in each state.
| Appliance | CT | SD | Savings |
|---|---|---|---|
| Air Purifier | $10.79 | $4.95 | SD saves $5.85 |
| Blender | $0.36 | $0.16 | SD saves $0.19 |
| CFL Bulb (13W) | $0.94 | $0.43 | SD saves $0.51 |
| Cable / Satellite Box | $7.55 | $3.46 | SD saves $4.09 |
| Ceiling Fan | $8.09 | $3.71 | SD saves $4.38 |
| Central Air Conditioner | $251.83 | $115.42 | SD saves $136.42 |
| Chest Freezer | $17.27 | $7.91 | SD saves $9.35 |
| Clothes Dryer (Electric) | $26.98 | $12.37 | SD saves $14.62 |
| Coffee Maker | $2.02 | $0.93 | SD saves $1.10 |
| Crypto Mining Rig | $323.78 | $148.39 | SD saves $175.39 |
| Dehumidifier | $32.38 | $14.84 | SD saves $17.54 |
| Desktop Computer | $14.39 | $6.60 | SD saves $7.80 |
| Dishwasher | $16.19 | $7.42 | SD saves $8.77 |
| Electric Baseboard Heater | $89.94 | $41.22 | SD saves $48.72 |
| Electric Fireplace | $50.37 | $23.08 | SD saves $27.28 |
Bottom Line: Connecticut vs South Dakota
South Dakota is the more affordable state for electricity, with rates 54.2% lower than Connecticut. An average household would save about $516.00/year by living in South Dakota.
Connecticut gets its electricity primarily from Natural Gas with 6.0% renewable, while South Dakota relies on Wind with 35.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Connecticut or South Dakota?
Electricity is cheaper in South Dakota at 13.74¢/kWh compared to Connecticut at 29.98¢/kWh. That's a 54.2% difference, saving about $43.00/month on an average residential bill.
What is the average electricity bill in Connecticut vs South Dakota?
The average monthly electricity bill is $176 in Connecticut and $133 in South Dakota. The national average is $134.
Which state uses more renewable energy, Connecticut or South Dakota?
South Dakota has a higher renewable energy percentage at 35.0%, compared to 6.0% in Connecticut.
What are the main energy sources in Connecticut and South Dakota?
Connecticut primarily uses Natural Gas, while South Dakota relies on Wind.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)