With the increasing difficulties associated with heating, the new energy industry has become the mainstay for property development. The effective diffusion of leading technologies supplies a social edge for enterprise core technologies, and this is also a necessary topic for industrial transformation and optimization. Within the international context of energy conservation and emission reduction, the scientific and in-depth study of the diffusion mechanisms underlying leading technologies in the new energy industry have vital theoretical significance for the promotion of the diffusion of leading technologies. Based on the introduction of the Bass model and one extension model, this paper constructs the diffusion model of the new energy industry’s leading technology and analyzes its diffusion mechanism. The identified mechanism indicates that in the case of imperfect market and policy environments, the diffusion of the leading technology of the new energy industry is mainly influenced by the “expected utility” of innovators and the “actual utility” of imitators. The diffusion of the leading technology in innovator enterprises of the new energy industry is mainly affected by the “expected utility,” while the diffusion in imitator enterprises is affected by the “actual utility.” These influences are verified by simulation analysis. Based on the diffusion mechanism, several suggestions are presented for the promotion of the diffusion mechanism of leading technology, with the aim to provide references for the government, industry associations, and enterprises for relevant decision-making.

With the continuous reduction of fossil energy storage in the world, the environmental problems caused by fossil energy are becoming increasingly prominent. The intensification of the conflict between Russia and Ukraine has also led to a crisis in the global energy supply. Under the international background of energy conservation and emission reduction, it is of great theoretical and practical significance to systematically and deeply study the diffusion path of new energy industry-leading technology and put forward relevant policies and suggestions scientifically and feasible for promoting the diffusion activities of new energy industry-leading technology. This paper uses literature analysis to determine the external and internal factors that influence the diffusion of new energy industry-leading technology, and analysis of the configuration of various factors through the fsQCA method, the diffusion path of leading technology in the new energy industry is obtained. The technology and environment curve is drawn to divide the technology diffusion process into different stages. In addition, we selected the solar energy industry, a relatively perfect branch of China's new energy industry with a long development history, for case analysis to verify the diffusion path of leading technology in the new energy industry proposed in the article.