Residential Rate Report
South Dakota Residential Electricity Rates
South Dakota operates a regulated electric utility structure overseen by the South Dakota Public Utilities Commission (SDPUC). Investor-owned utilities (Northern States Power / Xcel, Otter Tail Power, Black Hills Energy, Northwestern Energy) serve households alongside municipal power systems and rural electric co-ops. Rates benefit from abundant wind energy and Missouri River hydroelectric dams.
Estimated Monthly Household Energy Charges
Estimated monthly energy charges for standard home electricity usage baselines in South Dakota calculated at 14.52 ¢/kWh:
| Monthly Usage (kWh) | Household Profile Baseline | Estimated Energy Charge ($/mo) |
|---|---|---|
| 500 kWh | 500 kWh / month (Apartment / Small Home) | $72.60 / mo |
| 800 kWh | 800 kWh / month (Medium Home / Efficient Usage) | $116.16 / mo |
| 1,000 kWh | 1,000 kWh / month (Standard U.S. Household Baseline) | $145.20 / mo |
| 1,500 kWh | 1,500 kWh / month (Large Home / All-Electric / High AC) | $217.80 / mo |
* Estimated energy charge only. Excludes utility fixed monthly customer fees, local distribution charges, time-of-use peak demand rates, fuel surcharges, and state taxes.
24-Month Historical Rate Trend (South Dakota)
Official U.S. EIA residential electricity price history for South Dakota over recent reporting periods:
| Reporting Month | Average Rate (¢/kWh) | Month-over-Month Change |
|---|---|---|
| April 2026 | 14.52 ¢/kWh | +0.23 ¢ |
| March 2026 | 14.29 ¢/kWh | +1.05 ¢ |
| February 2026 | 13.24 ¢/kWh | -0.36 ¢ |
| January 2026 | 13.60 ¢/kWh | +1.09 ¢ |
| December 2025 | 12.51 ¢/kWh | -1.30 ¢ |
| November 2025 | 13.81 ¢/kWh | -0.28 ¢ |
| October 2025 | 14.09 ¢/kWh | -0.67 ¢ |
| September 2025 | 14.76 ¢/kWh | +0.78 ¢ |
| August 2025 | 13.98 ¢/kWh | -0.54 ¢ |
| July 2025 | 14.52 ¢/kWh | +0.30 ¢ |
| June 2025 | 14.22 ¢/kWh | -0.11 ¢ |
| May 2025 | 14.33 ¢/kWh | +0.96 ¢ |
| April 2025 | 13.37 ¢/kWh | +0.62 ¢ |
| March 2025 | 12.75 ¢/kWh | +0.91 ¢ |
| February 2025 | 11.84 ¢/kWh | -0.24 ¢ |
| January 2025 | 12.08 ¢/kWh | -0.19 ¢ |
| December 2024 | 12.27 ¢/kWh | -1.00 ¢ |
| November 2024 | 13.27 ¢/kWh | -0.39 ¢ |
| October 2024 | 13.66 ¢/kWh | -0.18 ¢ |
| September 2024 | 13.84 ¢/kWh | +0.20 ¢ |
| August 2024 | 13.64 ¢/kWh | +0.11 ¢ |
| July 2024 | 13.53 ¢/kWh | -0.43 ¢ |
| June 2024 | 13.96 ¢/kWh | +0.53 ¢ |
| May 2024 | 13.43 ¢/kWh | +0.76 ¢ |
Key Electricity Cost Drivers in South Dakota
Primary market structure, generation mix, and environmental factors shaping electricity costs across South Dakota:
1. Nation-Leading Wind & Hydro Generation
Wind power and Missouri River hydroelectric dams generate the dominant share of South Dakota net electricity, keeping wholesale costs competitive.
2. Regional SPP & MISO Grid Integration
Utilities participate in the SPP and MISO regional transmission grids, balancing variable wind power with regional market loads.
3. High Plains Seasonal Extreme Loads
Cold Great Plains winters and hot summer cooling periods create sharp seasonal residential consumption swings.
Why Your Individual Electric Bill May Differ
Statewide average rates compiled by the U.S. EIA reflect overall residential revenue divided by total sales. Your actual monthly electricity bill in South Dakota will vary based on:
- Fixed Monthly Customer Charges: Basic meter account service fees assessed regardless of kWh consumption.
- Delivery & Distribution Tariffs: Regulated transmission charges set by state utility commissions.
- Time-of-Use (TOU) Pricing: Higher peak-period demand rates during hot afternoon or winter evening hours.
- Local Taxes & Clean Energy Riders: Municipal taxes and clean energy fund surcharges.
Calculate Your Exact South Dakota Home Electricity Bill
Statewide average rates provide a baseline, but your actual electric bill depends on your utility tariff structure, seasonal AC usage, and household appliances. Use Energy Bill Lab tools to analyze your bill or calculate appliance operating costs.