Charging a 2026 Rivian R1S Performance Dual Large (22in) at home in Hawaii

At Hawaii's residential electricity rate of 45.95¢/kWh, a 2026 Rivian R1S Performance Dual Large (22in) (rated 39.5 kWh per 100 miles by the EPA) costs $18.14 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: 13.2% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

2026 Rivian R1S Performance Dual Large (22in): yearly cost in Hawaii

Hawaii owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Large (22in) spend about $2,721 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. At this mileage, that's roughly $318 a year worse than the gas comparison.

What one full charge costs

At Hawaii's rate, fully covering this 2026 Rivian R1S Performance Dual Large (22in)'s 329-mile EPA range costs about $59.67 (129.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large (22in) in Hawaii ranks 20,235 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large (22in) ranks 251 of 400 EV models for raw efficiency, and Hawaii ranks 51 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Performance Dual Large (22in) 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.

Get quotes from local electricians for Level 2 charger installation in Hawaii before deciding.

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.