Washington home charging cost for the 2026 Rivian R1T Performance Dual Large Plus (22in)

A 2026 Rivian R1T Performance Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Washington's 14.35¢/kWh residential rate that's $5.87 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 63.4% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Performance Dual Large Plus (22in) costs roughly $880 a year to charge at home in Washington, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,523 a year.

What one full charge costs

Covering the 2026 Rivian R1T Performance Dual Large Plus (22in)'s EPA-rated 330-mile range takes about 135 kWh, which costs about $19.37 at Washington's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 8,794 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Performance Dual Large Plus (22in) alone ranks 281 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. At 14.35¢/kWh, Washington sits in the middle of the national range — the guide to why charging cost varies by state shows where.