US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

NewInsight: Investor-owned utilities charge 23% more for power

South Dakota

Sioux Valley SW Electric Cooperative electricity rates

What homes pay Sioux Valley SW Electric Cooperative for electricity, from EIA.

Cooperative utility, 23,623 homes in South Dakota. EIA lists it as Sioux Valley SW Elec Coop.

Headlines

Average price
15.1¢ a kWh
Up 12% on a year ago
Average bill
$183 a month
Up 5.5% on a year ago
Average use
1,213 kWh
A month. South Dakota 983 kWh
Price rank in South Dakota
3 of 8
1 is the most expensive

Over the 12 months to August 2026, Sioux Valley SW Electric Cooperative homes paid 15.1¢ a kWh, against 14.3¢ across South Dakota.

Sioux Valley SW Electric Cooperative vs South Dakota

Sioux Valley SW Electric CooperativeSouth Dakota
Average price, 12 months to August 202615.1¢14.3¢
Price in August 202615.9¢15.2¢
Average monthly bill, 12 months$183$140
Bill in August 2026$204$160
Average monthly use1,213 kWh983 kWh
Price change, past year+12%+8.2%
Price change since 2019+36%+24%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including August 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including August 2026

Source: EIA-861M monthly utility survey.