2026 Audi Q4 55 e-tron quattro: home charging cost in District of Columbia

At District of Columbia's residential electricity rate of 24.54¢/kWh, a 2026 Audi Q4 55 e-tron quattro (rated 34.6 kWh per 100 miles by the EPA) costs $8.5 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 47% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Audi Q4 55 e-tron quattro charged at home in District of Columbia costs about $1,275/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,128 a year.

Filling up the 2026 Audi Q4 55 e-tron quattro, in dollars

A 2026 Audi Q4 55 e-tron quattro needs roughly 86.9 kWh to reach its EPA-rated 251-mile range, which runs about $21.33 at 24.54¢/kWh in District of Columbia.

Where this ranks

This combination ranks 15,760 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi Q4 55 e-tron quattro alone ranks 140 of 400 models for efficiency; District of Columbia alone ranks 42 of 51 states for electricity price.

Getting set up to charge a 2026 Audi Q4 55 e-tron quattro at home

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 District of Columbia electrician quotes for Level 2 install before you commit either way.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how District of Columbia's 24.54¢/kWh compares? The guide to charging cost by state ranks every state side by side.