Evaluation of the Low-Carbon Rationalization of Regional Power Generation Based on an Improved C-E-G-T Model

Under the background of the “double carbon” goal, the green transformation of energy and power is a focus of current research. To understand the current situation and issues in the development of the power generation structure in different regions of China, an evaluation index system was constructed from four aspects: power-social system availability, power-economic system synergy, power-environmental system sustainability, and power system stability. The low carbon rationality of the power generation structure in different regions was evaluated and comprehensive evaluation scores were calculated based on an improved C-E-G-T model. The results of the study were as follows. (1) The low-carbon rationality of power generation structure is better in the western region and worse in the central region. In particular, performance was consistently good in Qinghai, Yunnan, Ningxia, and other regions and was poor in Beijing, Shanghai, and other regions. (2) To ensure the reliability of the evaluation results and a high degree of differentiation, the optimal range of values for the α parameter was (0.3, 0.7) in this paper. This research lays a theoretical foundation for the optimization of the power generation structure in all regions of China.