What it costs to charge a 2026 Tesla Model S Plaid in Idaho

In Idaho, home electricity runs 12.8¢/kWh — put a 2026 Tesla Model S Plaid's EPA-rated 30.6 kWh/100mi against that and 100 miles costs $3.92, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 75.6% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

2026 Tesla Model S Plaid: yearly cost in Idaho

Home charging this 2026 Tesla Model S Plaid in Idaho runs about $587 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,816 saved annually, at this mileage.

Cost of a full charge

$14.41 — that's what Idaho's 12.8¢/kWh rate puts on the 112.6 kWh a 2026 Tesla Model S Plaid needs for its full 368-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Tesla Model S Plaid in Idaho ranks 728 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model S Plaid ranks 70 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Before you install a home charger in Idaho

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

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