Benefits:
1. Isolate temperature. Insulate in summer and keep out cold in winter. After installing the panels, it can block direct sunlight from shining on the roof and reduce the amount of outdoor heat transferred to the room through the roof. Since photovoltaic panels can convert part of the solar energy into electrical energy, the heat generated by solar radiation is reduced, and the heat load of the building is reduced. Similarly, in winter, it can reduce the heat dissipation from the house to the outside, and maintain the temperature in the house well.
2. Reduce the aging rate of the roof. After installing photovoltaic panels on the roof, it can block direct sunlight from shining on the roof, reduce the aging rate of the roof glazed tiles, and extend the service life.
3. Beautiful. The solar power generation components are neatly arranged, dark blue in color, and beautiful. After installing solar panels on the roof, it is a beautiful landscape.
4. Effective lightning protection, safer. The electrical equipment of the rooftop solar photovoltaic power generation system has lightning protection function. If there is severe thunder and lightning weather, the photovoltaic power generation system can effectively prevent the electrical equipment in the house from being affected by direct lightning, induction lightning, etc., and people and property are safer.
5. It can increase income. The roof can be rented out to investors, and there can be considerable rental income.
Disadvantages:
1. Damage to the roof structure. If the roof structure is not reinforced, the photovoltaic equipment is heavy, which may damage the structure, especially for old houses, which will damage the roof.
2. Damage to the roof waterproof layer. During installation, it is necessary to drill holes on the roof, which will damage the original waterproof layer, and the effect of the second waterproofing is not as good as the first time, and it may increase the possibility of leakage.
3. Safety issues. If there is a strong wind, there may be a risk of being blown down.
4. The cost is relatively high. The photovoltaic product market is still in the development stage, and the price is still relatively expensive.
5. Light pollution problem. Because the photovoltaic panels will reflect part of the sunlight, if there are relatively high buildings around the photovoltaic power generation equipment, when the sun angle is right and the weather is clear, it may reflect sunlight to the indoor of the nearby buildings, causing light pollution to the indoor environment.
How to clean photovoltaic solar panels
1. Manual cleaning
Manual cleaning, as the name suggests, is to use people to clean dirty photovoltaic solar panels. This method of cleaning photovoltaic solar panels is more intuitive and has a better cleaning effect and is clean. However, because it is manual, it requires strong manual labor and the cleaning operation space is also more dangerous.