Charging a 2026 Rivian R1S Dual Standard (22in) at home in Arizona
At Arizona's residential electricity rate of 15.45¢/kWh, a 2026 Rivian R1S Dual Standard (22in) (rated 39.9 kWh per 100 miles by the EPA) costs $6.16 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 61.5% 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 Standard (22in) spend about $924 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,479 saved annually, at this mileage.
What one full charge costs
At Arizona's rate, fully covering this 2026 Rivian R1S Dual Standard (22in)'s 270-mile EPA range costs about $16.64 (107.7 kWh) — the energy the EPA test actually used, not the battery's rated size.
Where this ranks
Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Standard (22in) in Arizona ranks 10,163 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Standard (22in) ranks 262 of 400 EV models for raw efficiency, and Arizona ranks 25 of 51 for cheapest residential electricity.
Getting set up to charge a 2026 Rivian R1S Dual Standard (22in) at home
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 Arizona 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. Arizona's 15.45¢/kWh rate ranks 25 of 51 states; the state rate guide lays out the full spread.