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A Comprehensive Net Energy Analysis and Outlook of Energy System in China

Hongshuo Yan (), Lianyong Feng (), Jianliang Wang, Yuanying Chi and Yue Ma
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Hongshuo Yan: China University of Petroleum (Beijing)
Lianyong Feng: China University of Petroleum (Beijing)
Jianliang Wang: China University of Petroleum (Beijing)
Yuanying Chi: Beijing University of Technology
Yue Ma: China University of Petroleum (Beijing)

Biophysical Economics and Resource Quality, 2021, vol. 6, issue 4, 1-14

Abstract: Abstract Net energy is the surplus energy after subtracting energy production input, which is regarded as the energy that really promotes social development. At present, a large amount of net energy analysis is concentrated in the preliminary production stage, and there are few deeper studies on energy system. This study mainly uses input–output analysis to estimate energy input (including import input, energy loss and embodied energy), and calculates EROI and Net Energy Supply of energy system in China from 1990 to 2018. The results show that EROI has shown a downward trend in the past. Among all energy sectors, Production and Supply of Electric Power and Heat Power accounts for the highest proportion of energy input, and the proportion of energy loss is gradually increasing. In addition, this study uses the simulated function to establish the relationship between net energy and GDP and makes an outlook of net energy supply and EROI in different scenarios. EROI is likely to decline in the near future, and more attention should be paid to the efficient use of net energy to achieve economic goals.

Keywords: Net energy; EROI; Economic growth; Embodied energy (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s41247-021-00091-w

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