Charging a 2026 Rivian R1S Dual Max (22in) at home in Missouri

In Missouri, home electricity runs 13.45¢/kWh — put a 2026 Rivian R1S Dual Max (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $5.37, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 66.5% cheaper per mile than gasoline in Missouri — charging at home costs a fraction of what gas would here.

What a year of driving costs

Missouri owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Max (22in) spend about $806 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,597 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Dual Max (22in), in dollars

At Missouri's rate, fully covering this 2026 Rivian R1S Dual Max (22in)'s 410-mile EPA range costs about $22.02 (163.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Max (22in) in Missouri ranks 6,305 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Max (22in) ranks 265 of 400 EV models for raw efficiency, and Missouri ranks 7 of 51 for cheapest residential electricity.

Next step: home charger installation

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 Missouri 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 Missouri's 13.45¢/kWh compares? The guide to charging cost by state ranks every state side by side.