Charging a 2026 Rivian R1T Performance Dual Large Plus (22in) at home in Mississippi

In Mississippi, home electricity runs 15.35¢/kWh — put a 2026 Rivian R1T Performance Dual Large Plus (22in)'s EPA-rated 40.9 kWh/100mi against that and 100 miles costs $6.28, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 60.8% cheaper per mile than gasoline in Mississippi — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Mississippi owners putting 15,000 annual miles on a 2026 Rivian R1T Performance Dual Large Plus (22in) spend about $942 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,461 saved annually, at this mileage.

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

At Mississippi's rate, fully covering this 2026 Rivian R1T Performance Dual Large Plus (22in)'s 330-mile EPA range costs about $20.72 (135 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1T Performance Dual Large Plus (22in) in Mississippi, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T Performance Dual Large Plus (22in) in Mississippi ranks 10,613 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance Dual Large Plus (22in) ranks 281 of 400 EV models for raw efficiency, and Mississippi ranks 22 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1T Performance Dual Large Plus (22in)'s cost in Mississippi. At 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.