People used to worry about service life of photovoltaics initially. To deal with this situation, Chinese government implement subsidies for 20 years. As far as one can tell, Photovoltaic power generation is certainly fine after more than 20 years of use. From feelingless, to doubting, and finally widely used among people,shows that Photovoltaic industry is such brilliant!
The principle of photovoltaic power generation is photovoltaic conversion. As long as there is solar light, electricity generates without any noise and pollution, which can called real clean energy.
Photovoltaics are not only a sustainable, zero-carbon,clean,but also the cheapest energy in the near future. The use of photovoltaics can not only save money, but also make money, especially in the countryside, through the roof of their own installation of photovoltaic power plants, enjoying free electricity during daytime, selling electricity to make money,too. What a good deal!