Charging a 2026 Audi Q4 Sportback 55 e-tron quattro at home in South Dakota

In South Dakota, home electricity runs 14.33¢/kWh — put a 2026 Audi Q4 Sportback 55 e-tron quattro's EPA-rated 34.6 kWh/100mi against that and 100 miles costs $4.96, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 69% cheaper per mile than gasoline in South Dakota — charging at home costs a fraction of what gas would here.

2026 Audi Q4 Sportback 55 e-tron quattro: yearly cost in South Dakota

South Dakota owners putting 15,000 annual miles on a 2026 Audi Q4 Sportback 55 e-tron quattro spend about $744 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,659 saved annually, at this mileage.

What one full charge costs

At South Dakota's rate, fully covering this 2026 Audi Q4 Sportback 55 e-tron quattro's 251-mile EPA range costs about $12.45 (86.9 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 2026 Audi Q4 Sportback 55 e-tron quattro in South Dakota ranks 4,406 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi Q4 Sportback 55 e-tron quattro ranks 141 of 400 EV models for raw efficiency, and South Dakota ranks 14 of 51 for cheapest residential electricity.

Before you install a home charger in South Dakota

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.

Get quotes from local electricians for Level 2 charger installation in South Dakota before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.