What it costs to charge a 2026 Rivian R1T Dual Large (22in) in Mississippi

At Mississippi's residential electricity rate of 15.35¢/kWh, a 2026 Rivian R1T Dual Large (22in) (rated 39.5 kWh per 100 miles by the EPA) costs $6.06 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. That works out to 62.2% cheaper per mile than gasoline in Mississippi — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1T Dual Large (22in) in Mississippi runs about $909 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,494 saved annually, at this mileage.

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

$19.93 — that's what Mississippi's 15.35¢/kWh rate puts on the 129.9 kWh a 2026 Rivian R1T Dual Large (22in) needs for its full 329-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T Dual Large (22in) in Mississippi ranks 9,683 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Dual Large (22in) ranks 252 of 400 EV models for raw efficiency, and Mississippi ranks 22 of 51 for cheapest residential electricity.

Before you install a home charger in Mississippi

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.

Get quotes from local electricians for Level 2 charger installation in Mississippi before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Mississippi's 15.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.