South Carolina home charging cost for the 2026 Rivian R1S Dual Standard (22in)

At South Carolina's residential electricity rate of 16.04¢/kWh, a 2026 Rivian R1S Dual Standard (22in) (rated 39.9 kWh per 100 miles by the EPA) costs $6.4 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. Charging at home is much cheaper than gas here: 60.1% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S Dual Standard (22in) costs roughly $960 a year to charge at home in South Carolina, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,443 a year.

What one full charge costs

Covering the 2026 Rivian R1S Dual Standard (22in)'s EPA-rated 270-mile range takes about 107.7 kWh, which costs about $17.27 at South Carolina's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 11,084 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Standard (22in) alone ranks 262 of 400 models for efficiency; South Carolina alone ranks 27 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1S Dual Standard (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.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Standard (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.