Mississippi home charging cost for the 2027 Rivian R1T Quad (20in AT)

A 2027 Rivian R1T Quad (20in AT) draws 50.1 kWh per 100 miles per the EPA; at Mississippi's 15.35¢/kWh residential rate that's $7.69 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: 52% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1T Quad (20in AT) costs roughly $1,154 a year to charge at home in Mississippi, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,249 a year.

What one full charge costs

Covering the 2027 Rivian R1T Quad (20in AT)'s EPA-rated 325-mile range takes about 162.8 kWh, which costs about $24.99 at Mississippi's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 14,549 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Quad (20in AT) alone ranks 391 of 400 models for efficiency; Mississippi alone ranks 22 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 Mississippi electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.