2026 Rivian R1T All-Terrain Dual Max (20in), HI Charging…
2026 Rivian R1T All-Terrain Dual Max (20in): home charging cost in Hawaii
In Hawaii, home electricity runs 45.95¢/kWh, put a 2026 Rivian R1T All-Terrain Dual Max (20in)'s EPA-rated 43.2 kWh/100mi against that and 100 miles costs $19.86, versus $16.02 for a gas car averaging 25.5 mpg. This model costs more to charge at home than gas would here: 24% more than gas per mile here, not less, the arithmetic isn't clamped to always favor charging.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year, fueleconomy.gov's own default assumption, a 2026 Rivian R1T All-Terrain Dual Max (20in) charged at home in Hawaii costs about $2,979/year in electricity, against about $2,403/year for the gas-car comparison. That's about $576 MORE a year than the gas comparison, not less.
What one full charge costs
A 2026 Rivian R1T All-Terrain Dual Max (20in) needs roughly 159.9 kWh to reach its EPA-rated 370-mile range, which runs about $73.49 at 45.95¢/kWh in Hawaii.
How this compares nationally
This combination ranks 20,325 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T All-Terrain Dual Max (20in) alone ranks 335 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.