2026 Rolls-Royce Spectre Black Badge (22 inch Wheels): home charging cost in Wisconsin
At Wisconsin's residential electricity rate of 18.99¢/kWh, a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) (rated 45.4 kWh per 100 miles by the EPA) costs $8.63 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. Charging at home is much cheaper than gas here: 46.2% less than gas per mile, here specifically.
2026 Rolls-Royce Spectre Black Badge (22 inch Wheels): yearly cost in Wisconsin
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) charged at home in Wisconsin costs about $1,294/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,109 a year.
What one full charge costs
A 2026 Rolls-Royce Spectre Black Badge (22 inch Wheels) needs roughly 120.8 kWh to reach its EPA-rated 266-mile range, which runs about $22.95 at 18.99¢/kWh in Wisconsin.
How this compares nationally
This combination ranks 15,935 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rolls-Royce Spectre Black Badge (22 inch Wheels) alone ranks 361 of 400 models for efficiency; Wisconsin alone ranks 35 of 51 states for electricity price.
Before you install a home charger in Wisconsin
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.
Ask a licensed Wisconsin electrician to quote the install before this math becomes a real decision.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Wisconsin's 18.99¢/kWh compares? The guide to charging cost by state ranks every state side by side.