Development of solar photovoltaic industry and market in China, Germany, Japan and the United States of America using incentive policies

Solar photovoltaic (PV) technology has developed rapidly in the past decades and is essential in electricity generation. In this study, we demonstrate the relationship between PV incentive policies, technology innovation and market development in China, Germany, Japan and the United States of America (USA) by conducting a statistical data survey and systematic literature review. This article investigates the key policies affecting the development of PV technology from the perspective of solar PV Research and Development (R&D), industry, and market development. Our study highlights how these different kinds of policies drive the countries to change their role on the global stage. The results show the performance of supply-push policies and demand-pull policies during different periods and their significant impact on PV development, while it presenting future challenges and recommendations for PV development. Our study contributes to improve the understanding of PV technology innovation, its market development, and policy evolution through a multiple-perspective analysis of PV development processes.