2026 Lexus RZ 450e AWD (18 inch wheels): home charging cost in Washington

At Washington's residential electricity rate of 14.35¢/kWh, a 2026 Lexus RZ 450e AWD (18 inch wheels) (rated 30.5 kWh per 100 miles by the EPA) costs $4.38 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 costs a fraction of what gas would here: 72.7% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Lexus RZ 450e AWD (18 inch wheels) charged at home in Washington costs about $657/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,746 a year.

What one full charge costs

A 2026 Lexus RZ 450e AWD (18 inch wheels) needs roughly 80.6 kWh to reach its EPA-rated 264-mile range, which runs about $11.57 at 14.35¢/kWh in Washington.

How this compares nationally

This combination ranks 1,988 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Lexus RZ 450e AWD (18 inch wheels) alone ranks 66 of 400 models for efficiency; Washington alone ranks 15 of 51 states for electricity price.

Getting set up to charge a 2026 Lexus RZ 450e AWD (18 inch wheels) at home

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.

Get quotes from local electricians for Level 2 charger installation in Washington before deciding.

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.