What it costs to charge a 2026 Rivian R1S Quad Max (22in) in Washington

In Washington, home electricity runs 14.35¢/kWh — put a 2026 Rivian R1S Quad Max (22in)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $6.37, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 60.3% cheaper per mile than gasoline in Washington — charging at home is much cheaper than gas here.

2026 Rivian R1S Quad Max (22in): yearly cost in Washington

Home charging this 2026 Rivian R1S Quad Max (22in) in Washington runs about $955 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,448 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Quad Max (22in), in dollars

$23.81 — that's what Washington's 14.35¢/kWh rate puts on the 166 kWh a 2026 Rivian R1S Quad Max (22in) needs for its full 374-mile EPA range.

2026 Rivian R1S Quad Max (22in) in Washington, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Quad Max (22in) in Washington ranks 10,935 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad Max (22in) ranks 350 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.

Get quotes from local electricians for Level 2 charger installation in Washington before deciding.

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.