2027 Audi S e-tron GT (20 inch wheels): home charging cost in Massachusetts
At Massachusetts's residential electricity rate of 30.06¢/kWh, a 2027 Audi S e-tron GT (20 inch wheels) (rated 37.6 kWh per 100 miles by the EPA) costs $11.32 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 cheaper than gas here: 29.4% 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 2027 Audi S e-tron GT (20 inch wheels) charged at home in Massachusetts costs about $1,698/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $705 a year.
Filling up the 2027 Audi S e-tron GT (20 inch wheels), in dollars
A 2027 Audi S e-tron GT (20 inch wheels) needs roughly 112.9 kWh to reach its EPA-rated 300-mile range, which runs about $33.95 at 30.06¢/kWh in Massachusetts.
2027 Audi S e-tron GT (20 inch wheels) in Massachusetts, ranked
This combination ranks 18,535 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi S e-tron GT (20 inch wheels) alone ranks 209 of 400 models for efficiency; Massachusetts alone ranks 49 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 Massachusetts before deciding.
Where these figures come from
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Massachusetts 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.