Hawaii home charging cost for the 2027 Rivian R1T Premium (20in AT)

In Hawaii, home electricity runs 45.95¢/kWh — put a 2027 Rivian R1T Premium (20in AT)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $20.38, versus $16.02 for a gas car averaging 25.5 mpg. This model costs more to charge at home than gas would here: 27.2% more than gas per mile here, not less — the arithmetic isn't clamped to always favor charging.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1T Premium (20in AT) costs roughly $3,058 a year to charge at home in Hawaii, against roughly $2,403 a year for an equivalent gas car. That's about $655 MORE a year than the gas comparison, not less.

Cost of a full charge

Covering the 2027 Rivian R1T Premium (20in AT)'s EPA-rated 289-mile range takes about 128.2 kWh, which costs about $58.91 at Hawaii's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 20,334 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium (20in AT) alone ranks 343 of 400 models for efficiency; Hawaii alone ranks 51 of 51 states for electricity price.

Getting set up to charge a 2027 Rivian R1T Premium (20in AT) 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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.