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

In Connecticut, home electricity runs 28.82¢/kWh — put a 2027 Rivian R1S Premium Long Range (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $11.51, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is cheaper than gas here: 28.1% 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 Connecticut costs about $1,727/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $676 a year.

Filling up the 2027 Rivian R1S Premium Long Range (22in), in dollars

A 2027 Rivian R1S Premium Long Range (22in) needs roughly 163.7 kWh to reach its EPA-rated 410-mile range, which runs about $47.19 at 28.82¢/kWh in Connecticut.

Where this ranks

This combination ranks 18,684 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; Connecticut alone ranks 45 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.

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

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Connecticut's 28.82¢/kWh rate ranks 45 of 51 states; the state rate guide lays out the full spread.