2026 Audi Q4 45 e-tron: home charging cost in Colorado

A 2026 Audi Q4 45 e-tron draws 29.4 kWh per 100 miles per the EPA; at Colorado's 16.65¢/kWh residential rate that's $4.9 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: 69.4% 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 2026 Audi Q4 45 e-tron charged at home in Colorado costs about $734/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,669 a year.

Filling up the 2026 Audi Q4 45 e-tron, in dollars

A 2026 Audi Q4 45 e-tron needs roughly 84.7 kWh to reach its EPA-rated 288-mile range, which runs about $14.1 at 16.65¢/kWh in Colorado.

Where this ranks

This combination ranks 4,040 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; Colorado alone ranks 30 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 Colorado electrician to quote the install before this math becomes a real decision.

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 Colorado. Curious how Colorado's 16.65¢/kWh compares? The guide to charging cost by state ranks every state side by side.