Charging a 2026 Tesla Model 3 Premium RWD at home in Washington

A 2026 Tesla Model 3 Premium RWD draws 24.6 kWh per 100 miles per the EPA; at Washington's 14.35¢/kWh residential rate that's $3.54 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 77.9% cheaper per mile than gasoline in Washington — charging at home costs a fraction of what gas would here.

What a year of driving costs

Washington owners putting 15,000 annual miles on a 2026 Tesla Model 3 Premium RWD spend about $530 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,873 saved annually, at this mileage.

Filling up the 2026 Tesla Model 3 Premium RWD, in dollars

At Washington's rate, fully covering this 2026 Tesla Model 3 Premium RWD's 363-mile EPA range costs about $12.83 (89.4 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 2026 Tesla Model 3 Premium RWD in Washington ranks 217 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model 3 Premium RWD ranks 4 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Tesla Model 3 Premium RWD's cost in Washington. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.