The war in Iran has changed the math around electric cars.

Even though the Strait of Hormuz is set to reopen and gas prices are falling, it still costs almost three times as much to fuel a typical gas car as an E.V., at average gas and electricity prices. That’s a much wider gap than there was at the start of the year — a gap that isn’t likely to disappear anytime soon.

Driving 100 miles in a typical gas car that gets 25 miles per gallon now costs more than $16 on average.