Note that his numbers are not typical across the country. They were for large houses in a hot AC-dominated climate with near highest electric costs in the nation. Where gasoline prices are also near highest in the nation, with long commutes being common. Most of the nation pays considerably less. Before this current war's fuel price spike, national average gas price was $3/gallon. At common driving rates of 15k miles/year, many hybrids have fuel bills less than $100/month. For those driving just 12k/year, even numerous non-hybrids could burn less than $100/month. I do have solar. But if I didn't, the energy portion of my electric bill (i.e. not including the fixed connection charge) would average under $100, even with home charging of a PHEV. The spouse and I are retired and home much of the time, in an all-electric (no natural gas service) house. Though it is smaller than most people want anymore, and I have considerably improved its energy efficiency.
Horrors. My life of the car gas costs average 7.6 cents a mile. I have averaged only 7k miles a year. Total life of car fuel costs of $3,880 or so. Now how many years would it take for a solar powering/charging system and a EV vehicle to pay off for me?
Which closely matches my Prius Prime numbers. But we have different things in life that amuse us: You "averaged only 7k miles a year" I average over 20k miles a year 2019 Model 3: ~180,000 miles / ~8 years = 22,500 miles Get what makes you happy and enjoy. I do and like sharing my tricks. Bob Wilson