Charging a 2027 Vinfast VF 9 Plus at home in South Dakota

A 2027 Vinfast VF 9 Plus draws 49.8 kWh per 100 miles per the EPA; at South Dakota's 14.33¢/kWh residential rate that's $7.13 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 55.5% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

What a year of driving costs

South Dakota owners putting 15,000 annual miles on a 2027 Vinfast VF 9 Plus spend about $1,070 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,333 saved annually, at this mileage.

Cost of a full charge

At South Dakota's rate, fully covering this 2027 Vinfast VF 9 Plus's 287-mile EPA range costs about $20.47 (142.9 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 2027 Vinfast VF 9 Plus in South Dakota ranks 13,366 for cost savings versus gas — 1 being the best deal nationally. Separately, the Vinfast VF 9 Plus ranks 385 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

See the methodology guide for exactly which EIA and EPA figures feed 2027 Vinfast VF 9 Plus's cost in South Dakota. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.