Idaho
vsSouth Dakota
Side-by-side comparison of electricity costs, generation mix, and renewable energy data.
| Idaho | Metric | South Dakota |
|---|---|---|
| 11.82¢/kWh | Residential | 13.38¢/kWh |
| 9.25¢/kWh | Commercial | 10.89¢/kWh |
| 7.98¢/kWh | Industrial | 8.68¢/kWh |
| #2 | Price Rank | #13 |
| 68.3% | Renewable % | 81.6% |
Generation Mix
Idaho
South Dakota
Frequently Asked Questions
Idaho has cheaper residential electricity at 11.82¢/kWh. The difference is 1.56¢/kWh between the two states. Idaho ranks #2 and South Dakota ranks #13 cheapest among all states.
Idaho gets 68.3% of electricity from renewables, while South Dakota gets 81.6%. South Dakota leads in renewable energy adoption.
Electricity rates from EIA retail sales data. Generation mix from EIA electric power operational data.
Source: U.S. Energy Information Administration, 2026.
The side-by-side above pulls the the EIA Open Data API and State Electricity Profiles data for both entity A and entity B. What follows is the interpretation — which specific axes carry the most weight for entity A versus entity B, and which differences are large enough to influence a real decision.
For households or analysts using this comparison as a decision input, the right framing is usually not "which is better" in aggregate but "which is better for the specific decision in front of you." the EIA Open Data API and State Electricity Profiles captures the raw data; the framing depends on whether the question is investment, residency, planning, or research.