2027 Audi S6 e-tron (21 inch wheels): home charging cost in Idaho

A 2027 Audi S6 e-tron (21 inch wheels) draws 33.8 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.33 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: 73% 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 2027 Audi S6 e-tron (21 inch wheels) charged at home in Idaho costs about $649/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,754 a year.

Cost of a full charge

A 2027 Audi S6 e-tron (21 inch wheels) needs roughly 105.1 kWh to reach its EPA-rated 311-mile range, which runs about $13.45 at 12.8¢/kWh in Idaho.

Where this ranks

This combination ranks 1,818 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi S6 e-tron (21 inch wheels) alone ranks 118 of 400 models for efficiency; Idaho alone ranks 3 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.

Line up a few Idaho electrician quotes for Level 2 install before you commit either way.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2027 Audi S6 e-tron (21 inch wheels)'s cost in Idaho. 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.