Currently, one square meter of solar panels can generate 1.2 to 1.5 kilowatt hours of electricity over ten hours. You can do the calculation yourself. Even if you can install 2 square meters of solar panels on the roof of your car, if it's not cloudy or raining, the car can charge a little more than 2 kilowatt hours of electricity if the weather is nice . left out in the sun for a day, and you can run 10-20 kilometers at full capacity if you take into account the increased vehicle weight and wind resistance, the mileage may not increase at all. Is it still necessary to install it?
The technology of solar panels installed on cars has not yet passed the test
This is 'very simple basic knowledge. But it's harder to say. Let me give a simple example, hope you can understand. A house of 10 square meters can be builtlit by a 40 watt bulb. If it is 100 square meters, it can also be lit with 40 watts. Suppose we collect all this energy. So the solar panels used for 40 square meters are completely different from the solar panels used for 100 square meters. But the final energy they collect is the same. Simply put, the little energy collected by solar panels is a drop in the ocean for electric cars. Even though it is used for ventilation, it is very unstable.
It will be available in the future, and it will be enough for people who do not travel many kilometers every day
Too low efficiency
Toyota won't launch it next year, but it can travel an extra 1,800 kilometers per year.