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

In Maryland, home electricity runs 21.27¢/kWh — put a 2026 Rolls-Royce Spectre Black Badge (23 inch Wheels)'s EPA-rated 48.3 kWh/100mi against that and 100 miles costs $10.27, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is cheaper than gas here: 35.9% 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 $1,540 a year to charge at home in Maryland, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $863 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 $25.78 at Maryland's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 17,677 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; Maryland alone ranks 39 of 51 states for electricity price.

Next step: home charger installation

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.

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

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Maryland's 21.27¢/kWh compares? The guide to charging cost by state ranks every state side by side.