2026 Rivian R1T Dual Standard (20in): home charging cost in Washington

At Washington's residential electricity rate of 14.35¢/kWh, a 2026 Rivian R1T Dual Standard (20in) (rated 42.9 kWh per 100 miles by the EPA) costs $6.15 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. Charging at home is much cheaper than gas here: 61.6% less than gas per mile, here specifically.

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

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T Dual Standard (20in) charged at home in Washington costs about $923/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,480 a year.

Filling up the 2026 Rivian R1T Dual Standard (20in), in dollars

A 2026 Rivian R1T Dual Standard (20in) needs roughly 110.6 kWh to reach its EPA-rated 258-mile range, which runs about $15.87 at 14.35¢/kWh in Washington.

How this compares nationally

This combination ranks 10,138 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Standard (20in) alone ranks 313 of 400 models for efficiency; Washington alone ranks 15 of 51 states for electricity price.

Before you install a home charger in Washington

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.

Line up a few Washington electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.