What it costs to charge a 2027 Rivian R1T Performance (20in) in Idaho

In Idaho, home electricity runs 12.8¢/kWh — put a 2027 Rivian R1T Performance (20in)'s EPA-rated 47 kWh/100mi against that and 100 miles costs $6.01, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 62.5% cheaper per mile than gasoline in Idaho — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2027 Rivian R1T Performance (20in) in Idaho runs about $902 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,501 saved annually, at this mileage.

Filling up the 2027 Rivian R1T Performance (20in), in dollars

$20.93 — that's what Idaho's 12.8¢/kWh rate puts on the 163.5 kWh a 2027 Rivian R1T Performance (20in) needs for its full 348-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Performance (20in) in Idaho ranks 9,459 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance (20in) ranks 370 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1T Performance (20in) 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.

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

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.