Charging a 2026 Rivian R1S Dual Max (22in) at home in Mississippi

In Mississippi, home electricity runs 15.35¢/kWh — put a 2026 Rivian R1S Dual Max (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $6.13, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 61.7% cheaper per mile than gasoline in Mississippi — charging at home is much cheaper than gas here.

2026 Rivian R1S Dual Max (22in): yearly cost in Mississippi

Mississippi owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Max (22in) spend about $920 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,483 saved annually, at this mileage.

What one full charge costs

At Mississippi's rate, fully covering this 2026 Rivian R1S Dual Max (22in)'s 410-mile EPA range costs about $25.14 (163.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Dual Max (22in) in Mississippi, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Max (22in) in Mississippi ranks 10,056 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Max (22in) ranks 265 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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.