Charging a 2027 Rivian R1S Quad (22in UHP) at home in Missouri

In Missouri, home electricity runs 13.45¢/kWh — put a 2027 Rivian R1S Quad (22in UHP)'s EPA-rated 47.3 kWh/100mi against that and 100 miles costs $6.37, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 60.2% cheaper per mile than gasoline in Missouri — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Missouri owners putting 15,000 annual miles on a 2027 Rivian R1S Quad (22in UHP) spend about $955 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,448 saved annually, at this mileage.

What one full charge costs

At Missouri's rate, fully covering this 2027 Rivian R1S Quad (22in UHP)'s 338-mile EPA range costs about $21.52 (160 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 2027 Rivian R1S Quad (22in UHP) in Missouri ranks 10,998 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad (22in UHP) ranks 371 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.

Line up a few Missouri 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. Curious how Missouri's 13.45¢/kWh compares? The guide to charging cost by state ranks every state side by side.