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

At Massachusetts's residential electricity rate of 30.06¢/kWh, a 2026 Lexus RZ 550e AWD (rated 35.3 kWh per 100 miles by the EPA) costs $10.62 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 33.7% cheaper per mile than gasoline in Massachusetts — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

Massachusetts owners putting 15,000 annual miles on a 2026 Lexus RZ 550e AWD spend about $1,592 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $811 saved annually, at this mileage.

Filling up the 2026 Lexus RZ 550e AWD, in dollars

At Massachusetts's rate, fully covering this 2026 Lexus RZ 550e AWD's 229-mile EPA range costs about $24.31 (80.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Lexus RZ 550e AWD in Massachusetts ranks 18,026 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 Massachusetts ranks 49 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Lexus RZ 550e AWD 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 Massachusetts electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Massachusetts has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.