What it costs to charge a 2027 Rivian R1S Premium (20in AT) in South Carolina

In South Carolina, home electricity runs 16.04¢/kWh — put a 2027 Rivian R1S Premium (20in AT)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $7.12, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 55.6% cheaper per mile than gasoline in South Carolina — charging at home is much cheaper than gas here.

2027 Rivian R1S Premium (20in AT): yearly cost in South Carolina

Home charging this 2027 Rivian R1S Premium (20in AT) in South Carolina runs about $1,067 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,336 saved annually, at this mileage.

What one full charge costs

$20.56 — that's what South Carolina's 16.04¢/kWh rate puts on the 128.2 kWh a 2027 Rivian R1S Premium (20in AT) needs for its full 289-mile EPA range.

2027 Rivian R1S Premium (20in AT) in South Carolina, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium (20in AT) in South Carolina ranks 13,314 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium (20in AT) ranks 342 of 400 EV models for raw efficiency, and South Carolina ranks 27 of 51 for cheapest residential electricity.

Before you install a home charger in South Carolina

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 South Carolina 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 2027 Rivian R1S Premium (20in AT)'s cost in South Carolina. South Carolina's 16.04¢/kWh rate ranks 27 of 51 states; the state rate guide lays out the full spread.