2026 BMW iX xDrive45 (20 inch Wheels): home charging cost in Hawaii

In Hawaii, home electricity runs 45.95¢/kWh — put a 2026 BMW iX xDrive45 (20 inch Wheels)'s EPA-rated 36 kWh/100mi against that and 100 miles costs $16.54, versus $16.02 for a gas car averaging 25.5 mpg. This model costs more to charge at home than gas would here: 3.2% more than gas per mile here, not less — the arithmetic isn't clamped to always favor charging.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW iX xDrive45 (20 inch Wheels) charged at home in Hawaii costs about $2,481/year in electricity, against about $2,403/year for the gas-car comparison. That's about $78 MORE a year than the gas comparison, not less.

What one full charge costs

A 2026 BMW iX xDrive45 (20 inch Wheels) needs roughly 112.3 kWh to reach its EPA-rated 312-mile range, which runs about $51.6 at 45.95¢/kWh in Hawaii.

How this compares nationally

This combination ranks 20,139 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX xDrive45 (20 inch Wheels) alone ranks 168 of 400 models for efficiency; Hawaii alone ranks 51 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 Hawaii 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. 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.