2027 Rivian R1S Premium Long Range (20in): home charging cost in North Carolina
In North Carolina, home electricity runs 14.9¢/kWh — put a 2027 Rivian R1S Premium Long Range (20in)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $6.25, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 61% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Premium Long Range (20in) charged at home in North Carolina costs about $938/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,465 a year.
What one full charge costs
A 2027 Rivian R1S Premium Long Range (20in) needs roughly 159.5 kWh to reach its EPA-rated 380-mile range, which runs about $23.77 at 14.9¢/kWh in North Carolina.
2027 Rivian R1S Premium Long Range (20in) in North Carolina, ranked
This combination ranks 10,510 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium Long Range (20in) alone ranks 296 of 400 models for efficiency; North Carolina alone ranks 18 of 51 states for electricity price.
Next step: home charger installation
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 North Carolina electrician to quote the install before this math becomes a real decision.
Where these figures come from
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how North Carolina's 14.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.