Hawaii home charging cost for the 2026 Audi Q4 45 e-tron

In Hawaii, home electricity runs 45.95¢/kWh — put a 2026 Audi Q4 45 e-tron's EPA-rated 29.4 kWh/100mi against that and 100 miles costs $13.51, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is cheaper than gas here: 15.7% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Audi Q4 45 e-tron costs roughly $2,027 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 $376 a year.

What one full charge costs

Covering the 2026 Audi Q4 45 e-tron's EPA-rated 288-mile range takes about 84.7 kWh, which costs about $38.91 at Hawaii's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Audi Q4 45 e-tron in Hawaii, ranked

This combination ranks 19,706 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi Q4 45 e-tron alone ranks 48 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Audi Q4 45 e-tron's cost in Hawaii. 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.