South Dakota home charging cost for the 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels)

At South Dakota's residential electricity rate of 14.33¢/kWh, a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) (rated 48.3 kWh per 100 miles by the EPA) costs $6.92 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. Charging at home is much cheaper than gas here: 56.8% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) costs roughly $1,038 a year to charge at home in South Dakota, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,365 a year.

Cost of a full charge

Covering the 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels)'s EPA-rated 251-mile range takes about 121.2 kWh, which costs about $17.37 at South Dakota's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) in South Dakota, ranked

This combination ranks 12,879 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rolls-Royce Spectre Black Badge (23 inch Wheels) alone ranks 380 of 400 models for efficiency; South Dakota alone ranks 14 of 51 states for electricity price.

Getting set up to charge a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels)'s cost in South Dakota. South Dakota's 14.33¢/kWh rate ranks 14 of 51 states; the state rate guide lays out the full spread.