2026 Rivian R1S Dual Standard (20in), HI Charging Cost

2026 Rivian R1S Dual Standard (20in): home charging cost in Hawaii

A 2026 Rivian R1S Dual Standard (20in) draws 42.9 kWh per 100 miles per the EPA; at Hawaii's 45.95¢/kWh residential rate that's $19.7 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. This model costs more to charge at home than gas would here: 23% more than gas per mile here, not less, the arithmetic isn't clamped to always favor charging.

2026 Rivian R1S Dual Standard (20in): yearly cost in Hawaii

Driving 15,000 miles a year, fueleconomy.gov's own default assumption, a 2026 Rivian R1S Dual Standard (20in) charged at home in Hawaii costs about $2,955/year in electricity, against about $2,403/year for the gas-car comparison. That's about $552 MORE a year than the gas comparison, not less.

What one full charge costs

A 2026 Rivian R1S Dual Standard (20in) needs roughly 110.6 kWh to reach its EPA-rated 258-mile range, which runs about $50.82 at 45.95¢/kWh in Hawaii.

2026 Rivian R1S Dual Standard (20in) in Hawaii, ranked

This combination ranks 20,304 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Standard (20in) alone ranks 312 of 400 models for efficiency; Hawaii alone ranks 51 of 51 states for electricity price.

Before you install a home charger in Hawaii

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.

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

Where these figures come from

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.