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

A 2027 Rivian R1S Premium (22in) draws 39.5 kWh per 100 miles per the EPA; at Mississippi's 15.35¢/kWh residential rate that's $6.06 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 62.2% cheaper per mile than gasoline in Mississippi — charging at home is much cheaper than gas here.

2027 Rivian R1S Premium (22in): yearly cost in Mississippi

Mississippi owners putting 15,000 annual miles on a 2027 Rivian R1S Premium (22in) spend about $909 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,494 saved annually, at this mileage.

What one full charge costs

At Mississippi's rate, fully covering this 2027 Rivian R1S Premium (22in)'s 329-mile EPA range costs about $19.93 (129.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium (22in) in Mississippi ranks 9,680 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium (22in) ranks 249 of 400 EV models for raw efficiency, and Mississippi ranks 22 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Premium (22in) at home

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. At 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.