Charging a 2027 Rivian R1T Quad (22in UHP) at home in Washington

At Washington's residential electricity rate of 14.35¢/kWh, a 2027 Rivian R1T Quad (22in UHP) (rated 47.3 kWh per 100 miles by the EPA) costs $6.79 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 57.6% cheaper per mile than gasoline in Washington — charging at home is much cheaper than gas here.

2027 Rivian R1T Quad (22in UHP): yearly cost in Washington

Washington owners putting 15,000 annual miles on a 2027 Rivian R1T Quad (22in UHP) spend about $1,019 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,384 saved annually, at this mileage.

Cost of a full charge

At Washington's rate, fully covering this 2027 Rivian R1T Quad (22in UHP)'s 338-mile EPA range costs about $22.96 (160 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Quad (22in UHP) in Washington ranks 12,458 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Quad (22in UHP) ranks 372 of 400 EV models for raw efficiency, and Washington ranks 15 of 51 for cheapest residential electricity.

Before you install a home charger in Washington

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 14.35¢/kWh, Washington sits in the middle of the national range — the guide to why charging cost varies by state shows where.