Missouri home charging cost for the 2026 Rivian R1S Quad Max (22in)

A 2026 Rivian R1S Quad Max (22in) draws 44.4 kWh per 100 miles per the EPA; at Missouri's 13.45¢/kWh residential rate that's $5.97 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 62.7% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S Quad Max (22in) costs roughly $895 a year to charge at home in Missouri, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,508 a year.

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

Covering the 2026 Rivian R1S Quad Max (22in)'s EPA-rated 374-mile range takes about 166 kWh, which costs about $22.32 at Missouri's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rivian R1S Quad Max (22in) in Missouri, ranked

This combination ranks 9,316 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad Max (22in) alone ranks 350 of 400 models for efficiency; Missouri alone ranks 7 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Quad Max (22in)'s cost in Missouri. Curious how Missouri's 13.45¢/kWh compares? The guide to charging cost by state ranks every state side by side.