Abstract
The power energy system is the foundation of the sustainable development of the human society and has an important impact on the economic, environmental and security of human society development. This paper first establishes the input and output evaluation index system of sustainable development capability of power energy system from the economic, social, environmental and security dimensions, and then uses the CCR-DEA model considering the undesired output and Malmquist index to dynamically measure the sustainable development efficiency of the power system in the Beijing-Tianjin-Hebei and Yangtze River Delta from 2005 to 2016 and decompose the corresponding items. The future development situation was analyzed through scenario analysis. The results show that: (1) Beijing and Shanghai is better than that in other provinces and cities in the same region, showing an upward trend; (2) The changes in the efficiency of sustainable development of power energy systems in Beijing, Shanghai, Zhejiang and Anhui provinces are mainly caused by technical efficiency changes. That in Tianjin, Hebei and Jiangsu are from two aspects: technical efficiency and scale efficiency; (3) The sustainable development capacity of the power system in the Beijing-Tianjin-Hebei economic circle is higher than that of the Yangtze river delta power system, and this gap has the tendency of further widening according to the strategic development plan of the two regional power energy systems; (4) In the future, China's regional electric energy system development plans should draw on the energy development strategic plan of the Beijing-Tianjin-Hebei region, especially the Xiong'an National New District, so as to achieve coordinated and sustainable development of power energy systems in various regions.
Highlights
With the deepening of urbanization and industrialization, there is an ever-growing demand for energy in human society
It means the improvement of urban energy sustainable development performance in Yangtze River region depended on advanced technology and technical innovation in past ten years, but as a result of ignoring the improvement of the technical efficiency, the actual development model still needs to be improved, the performance growth comes from economies scale are becoming weakened gradually
Among the increase of technical efficiency, the pure technical efficiency contributed 0%, and the annual increase of scale efficiency was 0.55%, indicating that the improvement of technical efficiency in the region comes from scale effect
Summary
With the deepening of urbanization and industrialization, there is an ever-growing demand for energy in human society. In Yangtze River delta, the Pearl River delta and the Beijing-Tianjin-Hebei regions, large urban agglomerations are highly concentrated in energy consumption. This paper takes the Beijing-Tianjin-Hebei region and the Yangtze River delta region as the research objects to carry out relevant research on the assessment of the sustainable development ability of electric power and the improvement path. There are few studies using total factor production efficiency to evaluate and compare the energy sustainable development ability of urban agglomerations. The energy sustainable development capacity of major cities in the Yangtze River delta (Shanghai, Jiangsu, Zhejiang and Anhui) and the Beijing-Tianjin-Hebei urban agglomeration is compared. This paper is structured as follows: the second part constructs the DEA full efficiency model to measure the energy consumption efficiency of the Yangtze River delta region and the Beijing-Tianjin-Hebei region. The third part analyzes and compares the energy sustainable performance of the two major urban agglomerations by the TFP index of energy consumption and its decomposition results
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