What it costs to charge a 2026 Rivian R1T Performance Dual Large (20in) in Washington

A 2026 Rivian R1T Performance Dual Large (20in) draws 42.9 kWh per 100 miles per the EPA; at Washington's 14.35¢/kWh residential rate that's $6.15 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 61.6% cheaper per mile than gasoline in Washington — charging at home is much cheaper than gas here.

2026 Rivian R1T Performance Dual Large (20in): yearly cost in Washington

Home charging this 2026 Rivian R1T Performance Dual Large (20in) in Washington runs about $923 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,480 saved annually, at this mileage.

Cost of a full charge

$18.46 — that's what Washington's 14.35¢/kWh rate puts on the 128.6 kWh a 2026 Rivian R1T 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 R1T Performance Dual Large (20in) in Washington ranks 10,139 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance Dual Large (20in) ranks 319 of 400 EV models for raw efficiency, and Washington ranks 15 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 Washington electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.