Charging a 2026 Lexus RZ 550e AWD at home in Montana

At Montana's residential electricity rate of 13.77¢/kWh, a 2026 Lexus RZ 550e AWD (rated 35.3 kWh per 100 miles by the EPA) costs $4.86 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. That works out to 69.6% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

What a year of driving costs

Montana owners putting 15,000 annual miles on a 2026 Lexus RZ 550e AWD spend about $729 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,674 saved annually, at this mileage.

Cost of a full charge

At Montana's rate, fully covering this 2026 Lexus RZ 550e AWD's 229-mile EPA range costs about $11.14 (80.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Lexus RZ 550e AWD in Montana, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Lexus RZ 550e AWD in Montana ranks 3,913 for cost savings versus gas — 1 being the best deal nationally. Separately, the Lexus RZ 550e AWD ranks 157 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Before you install a home charger in Montana

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 Montana 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 Lexus RZ 550e AWD's cost in Montana. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.