Missouri home charging cost for the 2027 Rivian R1S Premium Long Range (20in)

In Missouri, home electricity runs 13.45¢/kWh — put a 2027 Rivian R1S Premium Long Range (20in)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $5.65, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 64.8% less than gas per mile, here specifically.

2027 Rivian R1S Premium Long Range (20in): yearly cost in Missouri

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Premium Long Range (20in) costs roughly $847 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 $1,556 a year.

Cost of a full charge

Covering the 2027 Rivian R1S Premium Long Range (20in)'s EPA-rated 380-mile range takes about 159.5 kWh, which costs about $21.45 at Missouri's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 7,619 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium Long Range (20in) alone ranks 296 of 400 models for efficiency; Missouri alone ranks 7 of 51 states for electricity price.

Before you install a home charger in Missouri

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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Missouri's 13.45¢/kWh rate ranks 7 of 51 states; the state rate guide lays out the full spread.