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

At South Carolina's residential electricity rate of 16.04¢/kWh, a 2026 Rivian R1S Performance Dual Max (22in) (rated 39.9 kWh per 100 miles by the EPA) costs $6.41 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% 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 Performance Dual Max (22in) costs roughly $961 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 $1,442 a year.

What one full charge costs

Covering the 2026 Rivian R1S Performance Dual Max (22in)'s EPA-rated 410-mile range takes about 163.7 kWh, which costs about $26.27 at South Carolina's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rivian R1S Performance Dual Max (22in) in South Carolina, ranked

This combination ranks 11,147 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance Dual Max (22in) alone ranks 266 of 400 models for efficiency; South Carolina alone ranks 27 of 51 states for electricity price.

Before you install a home charger in South Carolina

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.

Line up a few South Carolina electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how South Carolina's 16.04¢/kWh compares? The guide to charging cost by state ranks every state side by side.