2027 Rivian R1S Premium Long Range (22in): home charging cost in South Carolina

In South Carolina, home electricity runs 16.04¢/kWh — put a 2027 Rivian R1S Premium Long Range (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $6.41, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 60% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Premium Long Range (22in) charged at home in South Carolina costs about $961/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,442 a year.

What one full charge costs

A 2027 Rivian R1S Premium Long Range (22in) needs roughly 163.7 kWh to reach its EPA-rated 410-mile range, which runs about $26.27 at 16.04¢/kWh in South Carolina.

How this compares nationally

This combination ranks 11,145 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium Long Range (22in) alone ranks 264 of 400 models for efficiency; South Carolina alone ranks 27 of 51 states for electricity price.

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

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Premium Long Range (22in)'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.