Is it illegal to install solar panels on the roof of a car?

It is not illegal to install solar panels on your roof, but it is not recommended. The performance of solar panels is as follows: Solar panels charge slowly: Under sufficient sunlight, monocrystalline solar panels can charge one kilowatt hour per square meter for about 10 hours, while the roof area of ​​ordinary passenger cars is very small , even. two square meters of solar panels can charge one to two kilowatt hours on a sunny day. Low conversion rate of solar panels: The energy conversion rate of solar panels is still relatively low, only about 20%, and the upper surface area of ​​a car is only 1-1.5 square meters, so the electricity generation capacity is relatively low. Cheap solar panels are still bulky, cannot produce enough energy to meet consumptionincreased electricity consumption and are relatively low for replacing existing roofs. The cost of thin and light solar panels is also relatively high, and the car may not return if it breaks down.