Electricity rates in South Dakota

Updated with EIA data for August 2026

South Dakota electricity rates over time

Average rate, bill and usage by year

Rates are weighted by kWh sold. Bills and usage are averages per residential customer.

Rates by sector (August 2026)

How much does electricity cost in South Dakota?

At South Dakota's 12-month average residential rate of 14.28¢ per kWh, here is the energy cost for common monthly usage levels, next to the US average. Fixed customer charges, taxes and fees vary by utility and are not included.

South Dakota electricity prices month by month

Over the last 12 months, the average residential rate ranged from 12.43¢ (December 2025) to 15.73¢ (May 2026), and homes used the most electricity in January 2026 (1,269 kWh on average).

South Dakota vs neighboring states

South Dakota's 12-month average rate is higher than 5 of its 6 neighbors.

What appliances cost to run in South Dakota

All appliance costs · Appliance cost calculator for South Dakota

Can you choose your electricity provider in South Dakota?

In South Dakota, most households buy electricity from their local utility at regulated rates, so shopping for a different supplier is usually not an option. The best ways to lower your bill are to reduce usage and check whether your utility offers time-of-use or other rate plans.

Solar snapshot

Each kW of solar panels in Sioux Falls produces about 1,409 kWh a year (NREL PVWatts). Sized for an average South Dakota home, a 8.4 kW system would cost about $21,588 before any incentives and pay for itself in about 13.2 years. See the full South Dakota solar estimate.

Guides for South Dakota

Electric Bills

Why Electricity Prices Differ So Much by State

Electricity costs several times more per kWh in some states than others. EIA data shows how fuel mix, grid costs, regulation and climate drive the gap.

Nov 8, 2026 · 5 min read

Saving Energy

How to Lower Your Electric Bill: 12 Practical, Sourced Ways

Practical ways to lower your electric bill, from free thermostat and standby-power fixes to LEDs, insulation and rate plans, each backed by DOE, EPA or EIA guidance.

Nov 9, 2026 · 5 min read

Solar

Is Solar Worth It in 2026? What Changed After the Federal Tax Credit Ended

The 25D federal credit ended for systems installed after 2025. Here is what now decides whether solar pays off, and how to estimate your own payback.

Nov 9, 2026 · 6 min read

South Dakota electricity calculators

• Electric bill calculatorEstimate a monthly bill at South Dakota's average rate.
• Electricity cost calculatorCost of any number of kWh in South Dakota.
• Solar panel calculatorSystem size, cost and payback for a South Dakota home.
• EV charging costHome charging cost per mile in South Dakota.

Source: U.S. Energy Information Administration (EIA), Form EIA-861M monthly sales and revenue data. Latest month: August 2026. Recent months may be preliminary and revised by EIA. See how we calculate.