Abstract: At present, China's new energy industry is developing rapidly. With the goal of "3060 carbon peak and carbon neutralization", the new energy power generation industry will be the direction of vigorous development in the future. The new energy industry represented by photovoltaic power generation has experienced the process from high subsidy to parity, which is inseparable from the support of the state and the continuous research of practitioners. This paper summarizes the development background of affordable photovoltaic and the research situation at home and abroad, and puts forward the significance and suggestions of developing affordable photovoltaic power generation projects. We hope to help enterprises summarize and learn from past experience and help the construction of affordable photovoltaic power stations.