Charging a 2027 Audi S e-tron GT (20 inch wheels) at home in Idaho

A 2027 Audi S e-tron GT (20 inch wheels) draws 37.6 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.82 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 69.9% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

What a year of driving costs

Idaho owners putting 15,000 annual miles on a 2027 Audi S e-tron GT (20 inch wheels) spend about $723 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,680 saved annually, at this mileage.

What one full charge costs

At Idaho's rate, fully covering this 2027 Audi S e-tron GT (20 inch wheels)'s 300-mile EPA range costs about $14.46 (112.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Audi S e-tron GT (20 inch wheels) in Idaho ranks 3,691 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi S e-tron GT (20 inch wheels) ranks 209 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Audi S e-tron GT (20 inch wheels) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed Idaho electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.