2027 Rivian R1T Premium Long Range (20in)

What it costs to charge a 2027 Rivian R1T Premium Long Range (20in) in Hawaii

At Hawaii's residential electricity rate of 45.95¢/kWh, a 2027 Rivian R1T Premium Long Range (20in) (rated 42 kWh per 100 miles by the EPA) costs $19.29 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. Here the math runs the other way: 20.4% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

2027 Rivian R1T Premium Long Range (20in): yearly cost in Hawaii

Home charging this 2027 Rivian R1T Premium Long Range (20in) in Hawaii runs about $2,893 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. At this mileage, that's roughly $490 a year worse than the gas comparison.

Filling up the 2027 Rivian R1T Premium Long Range (20in), in dollars

$73.29 — that's what Hawaii's 45.95¢/kWh rate puts on the 159.5 kWh a 2027 Rivian R1T Premium Long Range (20in) needs for its full 380-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium Long Range (20in) in Hawaii ranks 20,284 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium Long Range (20in) ranks 297 of 400 EV models for raw efficiency, and Hawaii ranks 51 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.

Ask a licensed Hawaii electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. This is one of the combinations where charging costs more than gas — the guide to when that happens explains why the arithmetic can go either way.