Charging a 2027 Rivian R1S Quad (22in UHP) at home in Mississippi

At Mississippi's residential electricity rate of 15.35¢/kWh, a 2027 Rivian R1S Quad (22in UHP) (rated 47.3 kWh per 100 miles by the EPA) costs $7.27 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 54.6% 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 2027 Rivian R1S Quad (22in UHP) spend about $1,090 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,313 saved annually, at this mileage.

What one full charge costs

At Mississippi's rate, fully covering this 2027 Rivian R1S Quad (22in UHP)'s 338-mile EPA range costs about $24.56 (160 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Rivian R1S Quad (22in UHP) in Mississippi, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Quad (22in UHP) in Mississippi ranks 13,744 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad (22in UHP) ranks 371 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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Mississippi's 15.35¢/kWh rate ranks 22 of 51 states; the state rate guide lays out the full spread.