Charging a 2027 Audi S6 e-tron (21 inch wheels) at home in South Dakota

In South Dakota, home electricity runs 14.33¢/kWh — put a 2027 Audi S6 e-tron (21 inch wheels)'s EPA-rated 33.8 kWh/100mi against that and 100 miles costs $4.84, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 69.8% cheaper per mile than gasoline in South Dakota — charging at home costs a fraction of what gas would here.

2027 Audi S6 e-tron (21 inch wheels): yearly cost in South Dakota

South Dakota owners putting 15,000 annual miles on a 2027 Audi S6 e-tron (21 inch wheels) spend about $726 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,677 saved annually, at this mileage.

What one full charge costs

At South Dakota's rate, fully covering this 2027 Audi S6 e-tron (21 inch wheels)'s 311-mile EPA range costs about $15.06 (105.1 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Audi S6 e-tron (21 inch wheels) in South Dakota ranks 3,795 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi S6 e-tron (21 inch wheels) ranks 118 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed South Dakota electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 14.33¢/kWh, South Dakota sits in the middle of the national range — the guide to why charging cost varies by state shows where.