Independent resource. Not affiliated with any utility or energy provider. Data sourced from the U.S. Energy Information Administration.Verified June 2026
South Dakota Electricity Cost 2026: 14.52¢/kWh
South Dakota residential electricity rates average 14.52 cents per kWh in 2026, -22.9% vs the 18.83¢ US national average. The state operates a regulated retail market with hydroelectric/wind as the primary generation source.
State Rate
14.52
cents/kWh
Monthly Bill
$125
at 863 kWh
vs National
-22.9%
national avg 18.83¢
Rank (cheapest first)
13/50
YoY change +8.6%
Market Type
Regulated
Supply rate set by state PUC
Primary Generation
Hydroelectric/Wind
per EIA State Energy Profile
Annual Bill (avg usage)
$1,504
vs national $1,950
South Dakota electricity market
Regulated state served by Xcel Energy, Black Hills Energy, NorthWestern Energy, and a network of cooperatives. Generation mix is heavily wind and hydroelectric, with some coal remaining.
Where South Dakota residents save
No retail competition. Low rates and short summer cooling season mean efficiency wins concentrate on heating-season weatherization and heat-pump conversion.
Primary utilities
- Xcel Energy
- Black Hills Energy
- NorthWestern Energy
South Dakota bill estimates by usage
| Home Profile | Monthly kWh | Monthly Bill | Annual Bill |
|---|---|---|---|
| Apartment | 500 | $73 | $871 |
| Small house | 750 | $109 | $1,307 |
| Average household | 863 | $125 | $1,504 |
| Large house | 1200 | $174 | $2,091 |
| Large house + EV | 1500 | $218 | $2,614 |
Estimates use the South Dakota state-average rate of 14.52¢/kWh from EIA data. Your actual bill includes delivery charges, customer-service fees, and state/local taxes already blended into this retail rate, plus any locality-specific surcharges not captured at the state-average level.