What it costs to charge a 2026 Tesla Model S Plaid (21in wheels) in Idaho

A 2026 Tesla Model S Plaid (21in wheels) draws 36.2 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.64 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 71.1% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Tesla Model S Plaid (21in wheels) in Idaho runs about $695 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,708 saved annually, at this mileage.

What one full charge costs

$14.32 — that's what Idaho's 12.8¢/kWh rate puts on the 111.9 kWh a 2026 Tesla Model S Plaid (21in wheels) needs for its full 309-mile EPA range.

2026 Tesla Model S Plaid (21in wheels) in Idaho, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Tesla Model S Plaid (21in wheels) in Idaho ranks 2,886 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model S Plaid (21in wheels) ranks 171 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Tesla Model S Plaid (21in 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.