Charging a 2026 BMW iX xDrive45 (23 inch Wheels) at home in Hawaii

In Hawaii, home electricity runs 45.95¢/kWh — put a 2026 BMW iX xDrive45 (23 inch Wheels)'s EPA-rated 38.6 kWh/100mi against that and 100 miles costs $17.76, versus $16.02 for a gas car averaging 25.5 mpg. Here the math runs the other way: 10.9% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

Annual cost, at 15 thousands miles a year

Hawaii owners putting 15,000 annual miles on a 2026 BMW iX xDrive45 (23 inch Wheels) spend about $2,664 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. At this mileage, that's roughly $261 a year worse than the gas comparison.

Filling up the 2026 BMW iX xDrive45 (23 inch Wheels), in dollars

At Hawaii's rate, fully covering this 2026 BMW iX xDrive45 (23 inch Wheels)'s 290-mile EPA range costs about $51.5 (112.1 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW iX xDrive45 (23 inch Wheels) in Hawaii ranks 20,210 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW iX xDrive45 (23 inch Wheels) ranks 230 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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.