What it costs to charge a 2026 Rivian R1S Performance Dual Large (20in) in Connecticut

In Connecticut, home electricity runs 28.82¢/kWh — put a 2026 Rivian R1S Performance Dual Large (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $12.36, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 22.9% cheaper per mile than gasoline in Connecticut — charging at home is cheaper than gas here.

2026 Rivian R1S Performance Dual Large (20in): yearly cost in Connecticut

Home charging this 2026 Rivian R1S Performance Dual Large (20in) in Connecticut runs about $1,853 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $550 saved annually, at this mileage.

Cost of a full charge

$37.07 — that's what Connecticut's 28.82¢/kWh rate puts on the 128.6 kWh a 2026 Rivian R1S Performance Dual Large (20in) needs for its full 300-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large (20in) in Connecticut ranks 19,202 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large (20in) ranks 317 of 400 EV models for raw efficiency, and Connecticut ranks 45 of 51 for cheapest residential electricity.

Before you install a home charger in Connecticut

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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Performance Dual Large (20in)'s cost in Connecticut. At 28.82¢/kWh, Connecticut sits in the middle of the national range — the guide to why charging cost varies by state shows where.