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

A 2026 Audi Q4 45 e-tron draws 29.4 kWh per 100 miles per the EPA; at Wisconsin's 18.99¢/kWh residential rate that's $5.58 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 fraction of what gas would here: 65.1% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Audi Q4 45 e-tron costs roughly $838 a year to charge at home in Wisconsin, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,565 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 $16.08 at Wisconsin's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 7,431 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; Wisconsin alone ranks 35 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.

Get quotes from local electricians for Level 2 charger installation in Wisconsin before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 18.99¢/kWh, Wisconsin sits in the middle of the national range — the guide to why charging cost varies by state shows where.