Charging a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) at home in South Dakota

A 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) draws 45.4 kWh per 100 miles per the EPA; at South Dakota's 14.33¢/kWh residential rate that's $6.51 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 59.4% cheaper per mile than gasoline in South Dakota — charging at home is much cheaper than gas here.

2026 Rolls-Royce Spectre Black Badge (22 inch Wheels): yearly cost in South Dakota

South Dakota owners putting 15,000 annual miles on a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) spend about $976 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,426 saved annually, at this mileage.

What one full charge costs

At South Dakota's rate, fully covering this 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels)'s 266-mile EPA range costs about $17.32 (120.8 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 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) in South Dakota ranks 11,468 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rolls-Royce Spectre Black Badge (22 inch Wheels) ranks 361 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.

Line up a few South Dakota electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how South Dakota's 14.33¢/kWh compares? The guide to charging cost by state ranks every state side by side.