The disadvantage of solar power generation in Shanghai is mainly the lack of lighting conditions. Shanghai is one of the most developed and densely populated cities in China. Although there are many high-rise buildings in these cities, the glass curtain walls of these high-rise buildings can be used to collect solar energy, but it is still far from enough.

Secondly, Shanghai is located at the mouth of the Yangtze River, and the light receiving conditions are not as good as those in the western regions, such as Gansu, Ningxia and Qinghai. These areas are rich in solar energy resources and sunny.

To sum up, Shanghai is not an ideal area for solar power generation, but it can continue to develop other renewable energy sources, such as wind energy, hydropower and nuclear energy.