2026 Rivian R1S All-Terrain Dual Max (20in): home charging cost in California

In California, home electricity runs 33.17¢/kWh — put a 2026 Rivian R1S All-Terrain Dual Max (20in)'s EPA-rated 43.2 kWh/100mi against that and 100 miles costs $14.34, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a little less than gas here: 10.5% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S All-Terrain Dual Max (20in) charged at home in California costs about $2,151/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $252 a year.

What one full charge costs

A 2026 Rivian R1S All-Terrain Dual Max (20in) needs roughly 159.9 kWh to reach its EPA-rated 370-mile range, which runs about $53.05 at 33.17¢/kWh in California.

Where this ranks

This combination ranks 19,894 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Dual Max (20in) alone ranks 333 of 400 models for efficiency; California alone ranks 50 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1S All-Terrain Dual 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 California before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Max (20in)'s cost in California. California has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.