2027 BMW i5 eDrive40 Sedan (21 inch Wheels): home charging cost in Hawaii

A 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) draws 33.9 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $15.56 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a little less than gas here: 2.9% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) charged at home in Hawaii costs about $2,334/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $69 a year.

What one full charge costs

A 2027 BMW i5 eDrive40 Sedan (21 inch Wheels) needs roughly 94.8 kWh to reach its EPA-rated 280-mile range, which runs about $43.57 at 45.95¢/kWh in Hawaii.

How this compares nationally

This combination ranks 20,057 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i5 eDrive40 Sedan (21 inch Wheels) alone ranks 120 of 400 models for efficiency; Hawaii alone ranks 51 of 51 states for electricity price.

Before you install a home charger in Hawaii

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. Hawaii has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.