this post was submitted on 31 Oct 2024
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There's something that people really fail to grasp with solar, and that's the fact there is bugger all energy in the sun, and you need a huge surface area to get any meaningful energy.
A home solar array often takes up a significant chunk of the roof area, and the amount of surface area a car typically has means that even perfectly efficient solar panels wouldn't collect enough energy to significantly contribute to the vehicle's range.
There's a good reason why vehicle manufacturers don't bother adding them.
Yes, but with a light and efficient vehicle, along with enough area covered in solar, it should be able to get you about 15 miles of free travel when left out on a sunny day. It has a battery. It isn't just running on sunshine and lollipops.
15 miles a day under ideal conditions isn't really a significant amount, most EVs could run for multiple weeks without being charged under those conditions.
That's 100 free miles a week. Sure, most people will need to charge it anyway, but that's still 100 free miles a week.
But I don't think it's a good idea. It would be more efficient to just put the same solar panels in your roof, where they don't contribute to the car's weight, don't force your to park in sunlight instead of indoor parking or garage, and whose output can be used for charging the car OR for anything else as needed.
That's ideal conditions, so very few people would actually see that. If you don't have somewhere to charge, you can typically charge up at somewhere like a supermarket.
It's not any more free than any other EV. it still uses energy. That energy can only be used for the car though. Put some solar on your house and it can charge your car (not free, the price of the panels same as the car). It will also be more efficient because it can be placed ideally, unlike the car. It'll also be cheaper for a larger area because it can take advantage of cheap standard panels instead of expensive custom ones.
Yeah, that's what I said.