2026 Rivian R1S All-Terrain Tri Max (20in): home charging cost in Hawaii

At Hawaii's residential electricity rate of 45.95¢/kWh, a 2026 Rivian R1S All-Terrain Tri Max (20in) (rated 49.8 kWh per 100 miles by the EPA) costs $22.9 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. This model costs more to charge at home than gas would here: 42.9% more than gas per mile here, not less — the arithmetic isn't clamped to always favor charging.

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

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S All-Terrain Tri Max (20in) charged at home in Hawaii costs about $3,435/year in electricity, against about $2,403/year for the gas-car comparison. That's about $1,032 MORE a year than the gas comparison, not less.

Filling up the 2026 Rivian R1S All-Terrain Tri Max (20in), in dollars

A 2026 Rivian R1S All-Terrain Tri Max (20in) needs roughly 164 kWh to reach its EPA-rated 329-mile range, which runs about $75.34 at 45.95¢/kWh in Hawaii.

2026 Rivian R1S All-Terrain Tri Max (20in) in Hawaii, ranked

This combination ranks 20,387 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Tri Max (20in) alone ranks 388 of 400 models for efficiency; Hawaii alone ranks 51 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1S All-Terrain Tri Max (20in) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Tri 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.