What it costs to charge a 2026 Rivian R1S Dual Large Plus (22in) in Hawaii

A 2026 Rivian R1S Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $18.79 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Here the math runs the other way: 17.3% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1S Dual Large Plus (22in) in Hawaii runs about $2,819 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. At this mileage, that's roughly $416 a year worse than the gas comparison.

Filling up the 2026 Rivian R1S Dual Large Plus (22in), in dollars

$62.02 — that's what Hawaii's 45.95¢/kWh rate puts on the 135 kWh a 2026 Rivian R1S Dual Large Plus (22in) needs for its full 330-mile EPA range.

2026 Rivian R1S Dual Large Plus (22in) in Hawaii, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large Plus (22in) in Hawaii ranks 20,264 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large Plus (22in) ranks 278 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Large Plus (22in)'s cost in Hawaii. 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.