Connecticut home charging cost for the 2026 Rivian R1S Quad Max (22in)

At Connecticut's residential electricity rate of 28.82¢/kWh, a 2026 Rivian R1S Quad Max (22in) (rated 44.4 kWh per 100 miles by the EPA) costs $12.79 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 cheaper than gas here: 20.2% 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 Quad Max (22in) costs roughly $1,918 a year to charge at home in Connecticut, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $485 a year.

What one full charge costs

Covering the 2026 Rivian R1S Quad Max (22in)'s EPA-rated 374-mile range takes about 166 kWh, which costs about $47.83 at Connecticut'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 19,446 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad Max (22in) alone ranks 350 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.

Ask a licensed Connecticut electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Connecticut's 28.82¢/kWh rate ranks 45 of 51 states; the state rate guide lays out the full spread.