An Assessment of the Security of China’s Natural Gas Supply System Using Two Network Models

Mingqi Zhang, Meirong Su, Weiwei Lu and Chunhua Su
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Mingqi Zhang: State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment/No. 19, Xinjiekouwai Street, Beijing Normal University, Beijing 100875, China
Meirong Su: State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment/No. 19, Xinjiekouwai Street, Beijing Normal University, Beijing 100875, China
Weiwei Lu: State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment/No. 19, Xinjiekouwai Street, Beijing Normal University, Beijing 100875, China
Chunhua Su: School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China

Energies, 2015, vol. 8, issue 12, 1-16

Abstract: In the context of climate change, natural gas is becoming increasingly important for low-carbon development in China. The gap between the demand and supply of natural gas, domestically, and China’s high dependence on foreign sources, highlights the importance of ensuring a secure system for supplying natural gas in the country. This study applied ecological network analysis, a powerful systems-oriented method, to simulate interactions between different nodes of the natural gas supply system and to evaluate the system’s security level. Two network models were constructed at the regional and national layers, respectively, by dividing external natural gas suppliers into multiple regions and countries. These models were used to evaluate the overall security level and related characteristics of China’s natural gas supply system from 2000 to 2012. The results showed stable improvement in the system’s security during this period. With the exceptions of some specific indicators (e.g., the mutualism index (MI)), analyses of network information and structure yielded the mostly similar results for the two models. In conclusion, a regional layer (RL) network model is considered more economical than a national layer (NL) model for evaluating the overall security of China’s natural gas supply system, especially when available data are limited.

Keywords: energy security; sustainability; efficiency; resilience; natural gas supply system; ecological network analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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