Montana-Dakota Utilities Co (South Dakota) electricity rate plans
3 residential rate plans from Montana-Dakota Utilities Co (South Dakota). Each page breaks down peak hours, off-peak windows, and per-kWh prices. 1 are time-of-use plans.
| Plan | Type | Peak hours | Peak / off-peak |
|---|---|---|---|
| Rate 16 Optional Time-Of-Day RES | Time-of-use | 12 p.m.–9 p.m. | 15¢ / 8¢ |
| Rate 53 Special Residential Electric Dual Fuel Space Heating Service ( | Flat | — | 6¢ |
| RS Rate 10 | Tiered | — | 11¢ |
Which Montana-Dakota Utilities Co (South Dakota) plan is cheapest for you?
Ask the free Energy Advisor about Montana-Dakota Utilities Co (South Dakota) rate plans, or upload a bill right here to check your real usage against every plan.
Drop your bill to upload
More free energy tools
US Electricity Rate Database
Peak hours, per-kWh prices, seasons & tiers for thousands of US utility plans.
Best Rate Plan Finder
See which rate plan is cheapest for a household like yours.
California Peak Hours by Plan
Exact time-of-use peak windows for every California rate plan.
Bill Spike Diagnosis
Find the most likely reason your electric bill jumped.
Appliance Running-Cost Calculator
What each appliance actually costs to run on your rate.
Balcony Solar Calculator
Estimate savings from a plug-in solar setup in your state.
Balcony Solar Kit Reviews
Owner ratings and Reddit/WattBot reviews for every kit in the calculator.
Ohio Rooftop Solar Calculator
Break-even and ROI for buying rooftop solar in Ohio.
Plug-In Solar Readiness Checker
See if your home and state are ready for balcony solar.
Plug-In Solar Laws Tracker
Legal status, watt limits & effective dates for all 50 states.
Battery Backup Calculator
Size a home battery and run the payback math.
Landlord & HOA Solar Letter
Generate a permission request for plug-in solar.
Data Centers & Your Bill
How surging data-center demand affects electricity prices.
Ohio Energy Supplier Comparison
Compare every certified Ohio electric & gas supplier by all-in price.
Texas Energy Supplier Comparison
Compare certified Texas electricity plans from PowerToChoose.
Illinois Energy Supplier Comparison
Compare certified IL electricity supplier offers by all-in rate.
Massachusetts Energy Supplier Comparison
Compare certified MA electricity supplier offers.
Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.