Hawaii home charging cost for the 2026 Ford Mustang Mach-E RWD Extended

A 2026 Ford Mustang Mach-E RWD Extended draws 30.7 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $14.09 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: 12% less than gas per mile, here specifically.

2026 Ford Mustang Mach-E RWD Extended: yearly cost in Hawaii

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Ford Mustang Mach-E RWD Extended costs roughly $2,114 a year to charge at home in Hawaii, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $289 a year.

What one full charge costs

Covering the 2026 Ford Mustang Mach-E RWD Extended's EPA-rated 320-mile range takes about 98.1 kWh, which costs about $45.1 at Hawaii's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Ford Mustang Mach-E RWD Extended in Hawaii, ranked

This combination ranks 19,836 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Ford Mustang Mach-E RWD Extended alone ranks 71 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.

Ask a licensed Hawaii electrician to quote the install before this math becomes a real decision.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.