Charging a 2026 Rivian R1S Dual Large (20in) at home in Arizona

At Arizona's residential electricity rate of 15.45¢/kWh, a 2026 Rivian R1S Dual Large (20in) (rated 42.9 kWh per 100 miles by the EPA) costs $6.62 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 58.7% cheaper per mile than gasoline in Arizona — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Arizona owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Large (20in) spend about $994 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,409 saved annually, at this mileage.

Cost of a full charge

At Arizona's rate, fully covering this 2026 Rivian R1S Dual Large (20in)'s 300-mile EPA range costs about $19.87 (128.6 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Dual Large (20in) in Arizona, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large (20in) in Arizona ranks 11,862 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large (20in) ranks 316 of 400 EV models for raw efficiency, and Arizona ranks 25 of 51 for cheapest residential electricity.

Before you install a home charger in Arizona

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.

Ask a licensed Arizona electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Arizona's 15.45¢/kWh compares? The guide to charging cost by state ranks every state side by side.