2027 Rivian R1S Performance (22in): home charging cost in Connecticut

In Connecticut, home electricity runs 28.82¢/kWh — put a 2027 Rivian R1S Performance (22in)'s EPA-rated 44.6 kWh/100mi against that and 100 miles costs $12.85, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is cheaper than gas here: 19.8% 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 Performance (22in) charged at home in Connecticut costs about $1,927/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $476 a year.

Filling up the 2027 Rivian R1S Performance (22in), in dollars

A 2027 Rivian R1S Performance (22in) needs roughly 165.4 kWh to reach its EPA-rated 371-mile range, which runs about $47.66 at 28.82¢/kWh in Connecticut.

2027 Rivian R1S Performance (22in) in Connecticut, ranked

This combination ranks 19,469 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (22in) alone ranks 354 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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 28.82¢/kWh, Connecticut sits in the middle of the national range — the guide to why charging cost varies by state shows where.