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Electricity rates in South Dakota

The average residential electricity rate in South Dakota is 15.15¢/kWh (August 2026, EIA), compared with 18.16¢/kWh for the US as a whole. That's 16.6% below the national average. It's 9% higher than a year earlier (13.90¢/kWh). South Dakota is number 17 of 51 (the 50 states and DC) from cheapest. A 1,500 W space heater costs about $0.23 an hour to run there.

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Leave empty to use the official price for United States: 18.16¢/kWh (August 2026).

Tariff and voltage
How you are charged

We do not have slab rates for United States. Use the bill analyzer to enter your own.

At 120 V it draws about 12.5 A. Voltage changes the current (amps), not the cost.

Results

Per hour: $0.23, Per day: $1.82, Per month: $55.27

Per hour
$0.23
Per day
$1.82
Per month
$55.27
Per year
$663.57

1.5 kWh per hour · 12 kWh per day

Based on 1,500 W for 8 h a day, 30.4 days a month, at 15.15¢/kWh.

On slab (tiered) tariffs, use the price of the highest slab your bill reaches: that's what each extra unit really costs.

What appliances cost to run in South Dakota

ApplianceTypical usePer hourPer dayPer month
Heat pump2,000 W, 24 h a day$0.15$3.64$110.53
Space heater1,500 W, 8 h a day$0.23$1.82$55.27
Electric water heater4,000 W, 3 h a day$0.61$1.82$55.27
Pool pump1,500 W, 6 h a day$0.23$1.36$41.45
Hot tub5,500 W, 24 h a day$0.04$1.00$30.40
Oil-filled radiator1,500 W, 8 h a day$0.11$0.91$27.63
Air conditioner1,000 W, 8 h a day$0.09$0.73$22.11
Clothes dryer3,000 W, 1 h a day$0.36$0.36$11.05
Dehumidifier300 W, 8 h a day$0.05$0.36$11.05
Gaming PC400 W, 4 h a day$0.06$0.24$7.37
Air cooler200 W, 8 h a day$0.03$0.24$7.37
Electric shower9,500 W, 0.13 h a day$1.44$0.19$5.82
Refrigerator150 W, 24 h a day$0.01$0.19$5.80
Water dispenser450 W, 24 h a day$0.01$0.18$5.52
Kotatsu600 W, 5 h a day$0.03$0.14$4.15
Water pump750 W, 1 h a day$0.11$0.11$3.45
Home UPS or inverter30 W, 24 h a day$0.0045$0.11$3.32
Electric blanket150 W, 8 h a day$0.01$0.09$2.76
Christmas lights100 W, 6 h a day$0.02$0.09$2.76
Ceiling fan60 W, 10 h a day$0.01$0.09$2.76
Game console200 W, 3 h a day$0.03$0.09$2.76
Washing machine2,000 W, 1 h a day$0.08$0.08$2.30
TV80 W, 5 h a day$0.01$0.06$1.84
Hair dryer1,800 W, 0.17 h a day$0.27$0.05$1.38
Electric kettle2,000 W, 0.15 h a day$0.30$0.05$1.38
Microwave1,200 W, 0.25 h a day$0.18$0.05$1.38
Air fryer1,700 W, 0.5 h a day$0.09$0.05$1.37
Rice cooker500 W, 0.5 h a day$0.08$0.04$1.15
Wi-Fi router10 W, 24 h a day$0.0015$0.04$1.11

About electricity rates in South Dakota

South Dakota is served by regulated, vertically integrated utilities with no retail choice. Xcel Energy, Black Hills Energy, NorthWestern Energy, Otter Tail Power and Montana-Dakota Utilities serve the main towns, while rural electric cooperatives and municipal systems serve much of the rest. The South Dakota Public Utilities Commission regulates the investor-owned utilities.

Hydropower from the federal dams on the Missouri River and wind farms on the plains together provide the large majority of in-state generation, with a smaller contribution from coal and gas plants. Winters are bitterly cold and summers hot, and some utilities offer off-peak rates for electric heating. There is no statewide net metering requirement, so arrangements for rooftop solar vary by utility.

States with similar rates

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