At present, endurance has always been a problem plaguing electric vehicles, especially in the case of running high speed in winter, electric vehicle endurance has shrunk significantly, many netizens have a sudden thought, why not install solar panels on the roof of electric vehicles, while running while charging it? Thinking about it, I felt like a genius, and I wanted to apply for a patent.
If the endurance problem of electric vehicles is so easy to solve, electric vehicles have long replaced fuel vehicles? And as for the dismal sales under the heavy subsidies? The reason is simple, installing solar panels is not worth the loss.
In fact, some car companies have long tried to install solar panels on the roof, and in 2015, Toyota Prius has a solar panel roof, but it can only power its ventilation system. Not long ago, Hyundai Motor Company launched the first car with a solar roof charging system, which will be installed on models such as hybrid Sonata, through 6 hours of solar panel charging every day, the driver's driving distance can increase by 800 miles a year, about less than 1300 kilometers, if converted by day, it is equivalent to 3.56 km / day of mileage increase, but the premise is that the vehicle must stop in the sun and complete 6 hours of charging. See clearly, a day can only increase the endurance of 3.65 kilometers, but also 6 hours of sunbathing, if it is cloudy, 3 kilometers of endurance will not give you.
So in order to increase the endurance of more than 3 kilometers per day, what do you need to pay?
The first is the price of the car, solar panels make the cost of the car increase by about 1075 US dollars, equivalent to 7500 yuan, are you willing to pay 7500 yuan for the extra 3 kilometers a day? Isn't it fragrant to charge this 7500 yuan? Buy 250 pounds of pork to eat it is also delicious!
The second is maintenance, the main material of solar panels is monocrystalline silicon or polycrystalline silicon wafer, although the hardness of this material is high, but it is more fragile, similar to glass, when the car accident is hit, it will be broken, do you think about it in case of a car accident, how high is the maintenance cost?
Finally, it affects functionality. Install solar panels, the Chinese people's favorite transparent large skylight is gone, the skylight is also designated to not be opened, and the skylight can no longer be opened to blow a small wind. In addition, the solar panels will also significantly increase the weight of the car, and the extra endurance may be put back.
Therefore, before the energy conversion efficiency of solar panels is solved, individuals are temporarily not optimistic about the application of solar roofs.