What it costs to charge a 2026 Lexus RZ 450e AWD (18 inch wheels) in Idaho

A 2026 Lexus RZ 450e AWD (18 inch wheels) draws 30.5 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $3.91 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 75.6% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

2026 Lexus RZ 450e AWD (18 inch wheels): yearly cost in Idaho

Home charging this 2026 Lexus RZ 450e AWD (18 inch wheels) in Idaho runs about $586 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,817 saved annually, at this mileage.

Cost of a full charge

$10.32 — that's what Idaho's 12.8¢/kWh rate puts on the 80.6 kWh a 2026 Lexus RZ 450e AWD (18 inch wheels) needs for its full 264-mile EPA range.

2026 Lexus RZ 450e AWD (18 inch wheels) in Idaho, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Lexus RZ 450e AWD (18 inch wheels) in Idaho ranks 727 for cost savings versus gas — 1 being the best deal nationally. Separately, the Lexus RZ 450e AWD (18 inch wheels) ranks 66 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Next step: home charger installation

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 Idaho electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.