According to some current forecasts, by 2050, electricity will become the largest energy source in China, and photovoltaic will become the largest energy source.
Now, in fact, the photovoltaic energy is very large. If all the desert areas of the earth cover 1% of the photovoltaic power stations, it will be enough for the electricity demand of all mankind. If 20% of China's Taklimakan Desert is built with photovoltaic power plants , it will be enough for the use of the Chinese people.