What it costs to charge a 2027 Rivian R1T Premium (20in) in Washington

A 2027 Rivian R1T Premium (20in) draws 42.9 kWh per 100 miles per the EPA; at Washington's 14.35¢/kWh residential rate that's $6.15 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 61.6% cheaper per mile than gasoline in Washington — charging at home is much cheaper than gas here.

2027 Rivian R1T Premium (20in): yearly cost in Washington

Home charging this 2027 Rivian R1T Premium (20in) in Washington runs about $923 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,480 saved annually, at this mileage.

What one full charge costs

$18.46 — that's what Washington's 14.35¢/kWh rate puts on the 128.6 kWh a 2027 Rivian R1T Premium (20in) needs for its full 300-mile EPA range.

2027 Rivian R1T Premium (20in) in Washington, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium (20in) in Washington ranks 10,133 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium (20in) ranks 315 of 400 EV models for raw efficiency, and Washington ranks 15 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1T Premium (20in) at home

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

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1T Premium (20in)'s cost in Washington. At 14.35¢/kWh, Washington sits in the middle of the national range — the guide to why charging cost varies by state shows where.