Mechanisms and implementation pathways for distributed photovoltaic grid integration in rural power systems: A study based on multi-agent game theory approach

This study aims to examine the decision - making logic and strategy optimization among local government, photovoltaic enterprises, power grid enterprises, and farmers to advance rural photovoltaic industry growth. A four parties evolutionary game model was established and data simulation was used to evaluate the impact of local subsidies, policy implementation and grid changes on the strategies of all parties. The study finds: i) Local government, photovoltaic enterprises, power grid enterprises, and farmers are the core entities in the development of the rural photovoltaic industry. The cooperative interests of the four entities is an important mechanism for the robust development of the rural photovoltaic industry. ii) Local governments can effectively stimulate the enthusiasm of the three parties by subsidizing photovoltaic enterprises, power grid enterprises and farmers. Among them, subsidies to power grid enterprises are more effective in promoting the development of rural photovoltaic industry than the other two types of entities. iii) Compared to power grid enterprises, direct subsidy policies from the local government to farmers can more effectively stimulate farmers’ enthusiasm for installing photovoltaics. iv) Recently, local governments have strengthened the implementation of relevant policies for photovoltaic enterprises, which is more conducive to the development of rural photovoltaic industry. In the long run, policies should fully cover photovoltaic enterprises, power grid enterprises and farmers to ensure balanced and stable development of all parties. This paper extends the scope of research and provides a theoretical basis for promoting farmers to use distributed photovoltaic.