Is the"Impossible Triangle"of the energy in China really impossible?An empirical test based on Coupling Coordination Degree Model
In the context of carbon peak and carbon neutralization,the Energy Impossible Tri-angle may be the key variable that restricts the high-quality energy development in China.Tak-ing 30 provinces in China as the research object,this paper established an evaluation index sys-tem of energy security and reliability,economic feasibility,green and low-carbon(hereinafter re-ferred to as"Security-Economy-Green").By using the entropy method,coupling coordination degree model and kernel density estimation method,this paper comprehensively studied the de-velopment level of energy"Security-Economy-Green"in China from 2005 to 2019,as well as the temporal evolution,spatial differentiation and convergence characteristics of the coupling co-ordination degree.The results show that:① In the aspect of the temporal evolution,from 2005 to 2019,the coupling coordination degree of energy"Security-Economy-Green"has been steadi-ly increasing,gradually rising from the mild imbalance level to the near imbalance level,and the polarization phenomenon has gradually weakened,but most of the periods are in the state of"mild imbalance".② In terms of spatial differentiation,our country energy"Security-Economy-Green"coupling coordination degree shows certain spatial heterogeneity,presenting the spatial differentiation pattern of"high in eastern and western regions,low in central and northeast re-gions".No significant rank transition occurred in each region and energy spatial pattern has cer-tain locking characteristics or path dependence.③ As for the space convergence,the nation and four regions have absolute β convergence and conditional β convergence characteristics,and en-ergy"Security-Economy-Green"coupling coordination degree will eventually converge to the same steady state level over time.The region with a low coupling coordination degree grows faster compared to the high,and the regional gap is narrowing.Taken together,there is indeed a certain Energy Impossible Triangle problem in our country at present,but according to the trend,this problem is being gradually alleviated.Finally,from the perspective of dialectics and coun-termeasures,we put forward some thoughts on the Energy Impossible Triangle.
Energy Impossible Trianglecoupling coordination degreespatial-temporal char-acteristicsspatial convergencedeveloping trend
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