Solar panelsare easily damaged, mainly due to dust on the panels in summer, frost in autumn and snow on them in winter if they are not are not cleaned in time. , solar panels are easy to cause local burnout, affecting the normal operation of the battery panel. It is therefore recommended to clean it once a week.
According to indoor experiments, the photoelectric conversion efficiency of currently used solar panels can only reach a maximum of 13-16%. If dust and debris stick to the surface without cleaning for 1-5 months, the conversion efficiency will only reach 13-16%. Reaching 8-10%, if bird droppings stick to the surface of the leaves, it will cause local heating and burning. If it is covered with heavy snow, it will cause serious safety hazards. The impact will vary in fanointing of the regional environment.
Solar photovoltaic products
The principle of solar photovoltaic products is to convert the sun's energy into electrical energy. Therefore, whether it is photovoltaic, there is. is a prerequisite for its installation, that is, it should be installed on the outdoor roof, high altitude or open place to maximize the reception of sunlight and effectively maximize its photoelectric conversion performance or photothermal.
In this way, dust, debris and some corrosive substances present in the atmosphere will easily adhere to its surface. Especially in areas with poor environmental conditions, the surface of the battery panel will be covered with dust within 1-2 months. This will seriously affect its photoelectric and photothermal conversion efficiency, reduce its performance and even damage it, pcausing huge losses.
Therefore, regardless of the conversion rate stated in the factory standards of solar panels, to maintain the effective conversion rate of solar panels, their surfaces must be kept clean and free of coatings. Once a solar panel is installed high up or on a roof, it is impossible to clean the dust and other debris covering its surface in time.
If it is not cleaned for a long time, its use efficiency will be greatly reduced, and its service life cannot be guaranteed to conform to the factory specified service life. The following is a basic survey test carried out.
The reason for the failure of solar cell phone batteries: The conversion efficiency of solar panels is low. In order to achieve the charging effect, the surface area must be increased. , so there are not many products currentlymanufactured.
If the solar cell phone battery fails and you want to use it to charge the cell phone, consider the voltage and current first. It definitely won't work if you use it to charge the cell. telephone directly. First, the minimum voltage is 5V, and the voltage is not acceptable. The output current of the solar panel is only 200mA, which is not good at all. If you really want to do it, you can consider it. connect two boards in series, then use LM7805 to stabilize the voltage.
Future Solar Powered Mobile Phone Market:
Solar Powered Mobile Phone MyWindowsPhone reported that Nokia is one of the partners of WYSIPS, which is committed to the development of solar charging screens, it can extend the battery life of mobile phones by up to 20%.
The principle of technologysolar cell phones is to place a semi-cylindrical lens made of a thin film between the screen and the device. Phones using this technology will be able to charge under natural and artificial light.
Solar-powered mobile phone WYSIPS said that the first light-charging mobile phone could be launched as early as fall 2009, but the manufacturer has not yet been determined, but Nokia will obviously be there. avant-garde. at the top of the list of candidates.