What it costs to charge a 2026 Rivian R1S Dual Large Plus (22in) in Connecticut

At Connecticut's residential electricity rate of 28.82¢/kWh, a 2026 Rivian R1S Dual Large Plus (22in) (rated 40.9 kWh per 100 miles by the EPA) costs $11.79 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. That works out to 26.4% cheaper per mile than gasoline in Connecticut — charging at home is cheaper than gas here.

What a year of driving costs

Home charging this 2026 Rivian R1S Dual Large Plus (22in) in Connecticut runs about $1,768 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $635 saved annually, at this mileage.

Cost of a full charge

$38.9 — that's what Connecticut's 28.82¢/kWh rate puts on the 135 kWh a 2026 Rivian R1S Dual Large Plus (22in) needs for its full 330-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large Plus (22in) in Connecticut ranks 18,889 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large Plus (22in) ranks 278 of 400 EV models for raw efficiency, and Connecticut ranks 45 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

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

More on how this number was built

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.