Charging a 2027 Vinfast VF 8 Eco at home in South Dakota

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2027 Vinfast VF 8 Eco (rated 46.2 kWh per 100 miles by the EPA) costs $6.63 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 58.6% 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 8 Eco spend about $994 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,409 saved annually, at this mileage.

Cost of a full charge

At South Dakota's rate, fully covering this 2027 Vinfast VF 8 Eco's 256-mile EPA range costs about $16.97 (118.4 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Vinfast VF 8 Eco in South Dakota ranks 11,977 for cost savings versus gas — 1 being the best deal nationally. Separately, the Vinfast VF 8 Eco ranks 363 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. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.