New energy vehicles need to have a stable battery power supply system for long endurance. Even if it is very stable, it is hard to avoid running out of time to charge. Therefore, many smart car owners came up with the idea of adding solar panels to charge. In our daily driving process, we can charge the battery by converting light and heat into electricity, so as to increase the car's endurance. There is no problem with logic, but why not add solar panels to charge the new energy vehicles we use in reality to increase the car's endurance? 3 aspects of analysis to give you the answer!
In theory, adding solar panels on the roof of a new energy vehicle can effectively convert it into electricity to charge the battery, but there is still a big gap compared with the reality. First, most cars probably fit only one square solar panel on the roof, and that's thin film. The conversion rate of solar energy per square meter is about 150 watts. Based on the calculation of 8 hours of irradiation per day, the power generation is about 1.2 degrees. The current pure electric car consumes about 15 degrees of electricity per 100 kilometers, so it seems that it can increase the endurance of about 10 kilometers under the premise of sufficient illumination. In fact, charging a car with a charging pile for an hour can charge 40 to 50 KWH of electricity, which has no practical application significance compared with solar power generation.
Second, the amount of electricity generated by the solar cells depends on the direction of the light and solar panels, and the horizontal roof of the car again reduces the conversion rate. After careful observation, it can be found that solar panels are placed at a certain Angle according to different latitude and longitude, or even controlled by a servo system at any time, so that the solar panels are always perpendicular to the light, so as to achieve a better conversion rate. However, the solar panels we installed on the car roof are in a horizontal state, and there is no way to change the Angle, which will further reduce the conversion rate. At the same time, the parking position of our car cannot be guaranteed to be in the state of light all the time, so the conversion rate of solar panels is already very low.
Third, the service life of installing solar panels on the roof of the car is short, the power generation will drop by about 20% after a year, and the car will be exposed to the sun for a long time, but also speed up the damage of the car's internal lines. Therefore, it is beneficial to add solar panels to new energy vehicles in theory, but after three aspects of analysis, the answer is obviously not appropriate. The existence of less power generation, short life, high maintenance costs in the later period, the need for a long time of exposure to the car these three constraints, is obviously more harmful than beneficial. Finally, Dazhao would like to ask you a question, to charge new energy vehicles, in addition to charging pile charging. Besides energy recovery, what are some good ways you can recharge your car to increase its range? Feel free to leave your comments!