Tennessee

South Dakota

Side-by-side comparison of electricity costs, generation mix, and renewable energy data.

Reviewed by EnergyProfile Editorial Team · Updated Apr 12, 2026

Tennessee	Metric	South Dakota
13.18¢/kWh	Residential	13.38¢/kWh
12.87¢/kWh	Commercial	10.89¢/kWh
6.74¢/kWh	Industrial	8.68¢/kWh
#11	Price Rank	#13
13.8%	Renewable %	81.6%

Generation Mix

Tennessee

Coal

22.9%

Gas

21.6%

Nuclear

42.3%

Hydro

11.7%

Solar

1.4%

South Dakota

Coal

7.5%

Gas

10.8%

Hydro

22.0%

Wind

57.8%

Solar

1.6%

Full profile

Tennessee Energy Profile →

Full profile

South Dakota Energy Profile →

Frequently Asked Questions

Tennessee has cheaper residential electricity at 13.18¢/kWh. The difference is 0.20¢/kWh between the two states. Tennessee ranks #11 and South Dakota ranks #13 cheapest among all states.

Tennessee gets 13.8% of electricity from renewables, while South Dakota gets 81.6%. South Dakota leads in renewable energy adoption.

Sources: US Energy Information Administration (EIA)

Electricity rates from EIA retail sales data. Generation mix from EIA electric power operational data.

Source: U.S. Energy Information Administration, 2026.

Comparing Tennessee and South Dakota on U.S. state-level electricity rates and generation mix requires lining up the underlying the EIA Open Data API and State Electricity Profiles data side by side. The table above runs the comparison on the canonical fields; the narrative below identifies the factor or factors that drive the most meaningful difference between the two.

Practical use of the comparison: read the data above, then drill into the individual Tennessee and South Dakota detail pages for the underlying breakdown. A pairwise comparison answers the relative question; the per-entity pages answer the absolute question.