District of Columbia home charging cost for the 2027 Audi S e-tron GT (21 inch wheels)

In District of Columbia, home electricity runs 24.54¢/kWh — put a 2027 Audi S e-tron GT (21 inch wheels)'s EPA-rated 38.5 kWh/100mi against that and 100 miles costs $9.45, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 41% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Audi S e-tron GT (21 inch wheels) costs roughly $1,417 a year to charge at home in District of Columbia, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $986 a year.

Cost of a full charge

Covering the 2027 Audi S e-tron GT (21 inch wheels)'s EPA-rated 294-mile range takes about 113.2 kWh, which costs about $27.78 at District of Columbia's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 16,902 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi S e-tron GT (21 inch wheels) alone ranks 226 of 400 models for efficiency; District of Columbia alone ranks 42 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 District of Columbia electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. District of Columbia's 24.54¢/kWh rate ranks 42 of 51 states; the state rate guide lays out the full spread.