2026 Rivian R1S All-Terrain Dual Max (20in), HI Charging…

Charging a 2026 Rivian R1S All-Terrain Dual Max (20in) at home in Hawaii

A 2026 Rivian R1S All-Terrain Dual Max (20in) draws 43.2 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $19.86 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: 24% more per mile than gasoline, because Hawaii's rate and this model's efficiency combine unfavorably.

2026 Rivian R1S All-Terrain Dual Max (20in): yearly cost in Hawaii

Hawaii owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Dual Max (20in) spend about $2,979 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. At this mileage, that's roughly $576 a year worse than the gas comparison.

What one full charge costs

At Hawaii's rate, fully covering this 2026 Rivian R1S All-Terrain Dual Max (20in)'s 370-mile EPA range costs about $73.49 (159.9 kWh), the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Max (20in) in Hawaii ranks 20,323 for cost savings versus gas, 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Max (20in) ranks 333 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Max (20in)'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.