Zhu Yunlai: Replacing existing thermal power systems with photovoltaic power generation can not only solve the problem of carbon emissions, but also bring new economic growth momentum. If optoelectronic investment is carried out systematically, China will need about 5 trillion to 10 trillion yuan of investment every year on average.

Based on the calculation that the world's electricity consumption is three times that of China, the world will need a total investment of approximately US$100 trillion in 20 years.