Since September 2020, General Secretary Xi Jinping has made seven solemn promises to the world that China will achieve “carbon peak” by 2030 and “carbon neutral” by 2060. Under the guidance of carbon peak and carbon neutral targets, it has become an inevitable choice for China to accelerate green and low-carbon development. Developed countries started earlier on the road of emission reduction and have accumulated rich experience with relatively sound relevant laws and regulations. This paper studies and analyzes the emission reduction status of developed countries, and summarizes and summarizes the practical experience that can be used for reference from five aspects: scientific planning of emission reduction path, establishment and improvement of institutional system, gradual improvement of carbon price mechanism, breakthrough in energy conservation and emission reduction technology, and comprehensive implementation of circular economy. On this basis, combining with the current situation of economic and social development in China, Suggestions are put forward from four aspects: policy guidance, market mechanism, technological innovation and circular economy.

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The development of renewable energy in Fujian province has entered a bottleneck period in recent years. Considering the impact of COVID-19, how to formulate the provincial energy development strategy based on the 14th Five-year Plan is an important issue that need to be addressed for Fujian. This paper constructs a provincial Computable General Equilibrium model to analyze the cost of energy transition to renewable resources and tries to find a better pathway that integrated into account social efficiency and cost. The simulation results show that after the implementation of energy substitution, the actual electricity price will increase by about 1.6% and the electricity consumption in various sectors will also decrease, especially in the secondary industry. Overall, the marginal impact of energy substitution on the economy is significant.