Charging a 2026 Rivian R1S Performance Dual Large Plus (22in) at home in California

At California's residential electricity rate of 33.17¢/kWh, a 2026 Rivian R1S Performance Dual Large Plus (22in) (rated 40.9 kWh per 100 miles by the EPA) costs $13.57 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 15.3% cheaper per mile than gasoline in California — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

California owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Large Plus (22in) spend about $2,035 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $368 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Performance Dual Large Plus (22in), in dollars

At California's rate, fully covering this 2026 Rivian R1S Performance Dual Large Plus (22in)'s 330-mile EPA range costs about $44.77 (135 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Performance Dual Large Plus (22in) in California, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large Plus (22in) in California ranks 19,720 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large Plus (22in) ranks 279 of 400 EV models for raw efficiency, and California ranks 50 of 51 for cheapest residential electricity.

Before you install a home charger in California

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few California electrician quotes for Level 2 install before you commit either way.

More on how this number was built

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