2027 Audi S e-tron GT (20 inch wheels): home charging cost in Montana

A 2027 Audi S e-tron GT (20 inch wheels) draws 37.6 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $5.18 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: 67.6% less than gas per mile, here specifically.

2027 Audi S e-tron GT (20 inch wheels): yearly cost in Montana

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 Montana costs about $778/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,625 a year.

Cost of a full charge

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 $15.55 at 13.77¢/kWh in Montana.

2027 Audi S e-tron GT (20 inch wheels) in Montana, ranked

This combination ranks 5,402 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; Montana alone ranks 10 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 Montana 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 S e-tron GT (20 inch wheels)'s cost in Montana. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.