2026 Audi Q4 45 e-tron, HI Charging Cost

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.