2026 Rivian R1S Performance Dual Large Plus (20in): home charging cost in Hawaii

In Hawaii, home electricity runs 45.95¢/kWh — put a 2026 Rivian R1S Performance Dual Large Plus (20in)'s EPA-rated 43.1 kWh/100mi against that and 100 miles costs $19.82, versus $16.02 for a gas car averaging 25.5 mpg. This model costs more to charge at home than gas would here: 23.7% 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 R1S Performance Dual Large Plus (20in) charged at home in Hawaii costs about $2,972/year in electricity, against about $2,403/year for the gas-car comparison. That's about $569 MORE a year than the gas comparison, not less.

What one full charge costs

A 2026 Rivian R1S Performance Dual Large Plus (20in) needs roughly 136.7 kWh to reach its EPA-rated 317-mile range, which runs about $62.81 at 45.95¢/kWh in Hawaii.

How this compares nationally

This combination ranks 20,318 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance Dual Large Plus (20in) alone ranks 328 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.

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 Performance Dual Large Plus (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.