Charging a 2027 Rivian R1T Premium Long Range (20in AT) at home in Idaho

At Idaho's residential electricity rate of 12.8¢/kWh, a 2027 Rivian R1T Premium Long Range (20in AT) (rated 43.2 kWh per 100 miles by the EPA) costs $5.53 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 65.5% 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

Idaho owners putting 15,000 annual miles on a 2027 Rivian R1T Premium Long Range (20in AT) spend about $830 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,573 saved annually, at this mileage.

What one full charge costs

At Idaho's rate, fully covering this 2027 Rivian R1T Premium Long Range (20in AT)'s 370-mile EPA range costs about $20.47 (159.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Rivian R1T Premium Long Range (20in AT) in Idaho, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium Long Range (20in AT) in Idaho ranks 7,104 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium Long Range (20in AT) ranks 332 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 2027 Rivian R1T Premium Long Range (20in AT)'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.