What it costs to charge a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) in Hawaii

At Hawaii's residential electricity rate of 45.95¢/kWh, a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) (rated 48.3 kWh per 100 miles by the EPA) costs $22.18 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. Here the math runs the other way: 38.5% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

2026 Rolls-Royce Spectre Black Badge (23 inch Wheels): yearly cost in Hawaii

Home charging this 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) in Hawaii runs about $3,328 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. At this mileage, that's roughly $925 a year worse than the gas comparison.

Cost of a full charge

$55.68 — that's what Hawaii's 45.95¢/kWh rate puts on the 121.2 kWh a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) needs for its full 251-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels) in Hawaii ranks 20,375 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rolls-Royce Spectre Black Badge (23 inch Wheels) ranks 380 of 400 EV models for raw efficiency, and Hawaii ranks 51 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 Hawaii 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. This is one of the combinations where charging costs more than gas — the guide to when that happens explains why the arithmetic can go either way.