2026 Rivian R1T Dual Max (22in): home charging cost in Mississippi

At Mississippi's residential electricity rate of 15.35¢/kWh, a 2026 Rivian R1T Dual Max (22in) (rated 38.8 kWh per 100 miles by the EPA) costs $5.96 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 62.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T Dual Max (22in) charged at home in Mississippi costs about $894/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,509 a year.

Filling up the 2026 Rivian R1T Dual Max (22in), in dollars

A 2026 Rivian R1T Dual Max (22in) needs roughly 163.1 kWh to reach its EPA-rated 420-mile range, which runs about $25.04 at 15.35¢/kWh in Mississippi.

How this compares nationally

This combination ranks 9,222 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Max (22in) alone ranks 234 of 400 models for efficiency; Mississippi alone ranks 22 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1T Dual Max (22in) at home

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.

Line up a few Mississippi electrician quotes for Level 2 install before you commit either way.

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.