2 ms·
Average miles per year in the USA is 12,000 miles or so. With a ev with 300 mile range that's 40 times per year, or less than once a week. Typically a fill up
by sliken 4y ago
Average miles per year in the USA is 12,000 miles or so. With a ev with 300 mile range that's 40 times per year, or less than once a week.
Typically a fill up in a sedan/small truck is around 75-80 kwh.
So basically the cost of the grid is related to it's peak power, which in most locales is the hottest day of the summer. So as long as you charge off peak it's not a big deal, and if anything it helps the grid. By charging off peak you are generating more revenue for the grid, while not making it more expensive to build or maintain. In fact if enough usage off peak and the cost per kwh can drop for everyone and the cost difference between offpeak and peak would decrease.
Charging 75kwh off peak once every 9 days or so, isn't a big deal. I've got a 60 amp circuit that charges my EV at 220v @ 48 amps, so one hour = 10.5 kwh. So that's about what I need to average a day. But if there was a heat warning (or say a electricity price spike) I could easily go several days without charging, even a week.
I was playing with a solar calculator and it looked like I could offset my EV's electricity use with 8 panels (on average) or something like 6 in the summer and 12 in the winter.
Because of this Biden set a goal of 50% of new cars being EVs by 2030. That's a pretty modest goal, especially since the average age of cars is in the 8-10 year range. So by the end of 2030 1/8 to 1/10th of the cars should be EVs. At that rate the current grid needs to grow by less than 1% a year.
Even a small incentive for workplaces to cover parking lots with solar should greatly help to offset the needs of EVs. The benefits would be manifold. Cities would have reduced heat island effects. Cars with less range would be more practical. Even ICE cars benefit by cooler cars in the summer, there's a significant energy spent cooling even car interior for the first few miles.