2026 Rivian R1T Quad Max (22in UHP): home charging cost in Washington

In Washington, home electricity runs 14.35¢/kWh — put a 2026 Rivian R1T Quad Max (22in UHP)'s EPA-rated 47.3 kWh/100mi against that and 100 miles costs $6.79, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 57.6% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T Quad Max (22in UHP) charged at home in Washington costs about $1,019/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,384 a year.

What one full charge costs

A 2026 Rivian R1T Quad Max (22in UHP) needs roughly 160 kWh to reach its EPA-rated 338-mile range, which runs about $22.96 at 14.35¢/kWh in Washington.

How this compares nationally

This combination ranks 12,460 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Quad Max (22in UHP) alone ranks 374 of 400 models for efficiency; Washington alone ranks 15 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Washington's 14.35¢/kWh rate ranks 15 of 51 states; the state rate guide lays out the full spread.