Quantifying the geographical distribution effect on decreasing aggregated nitrogen oxides intensity in the Chinese electrical generation system

Wang, J. and Qiu, Y. and Ma, Y. and He, S. and Liu, N. and Feng, Y. and Dong, Z. and Liu, L. (2019) Quantifying the geographical distribution effect on decreasing aggregated nitrogen oxides intensity in the Chinese electrical generation system. Journal of Cleaner Production, 222. pp. 856-864. ISSN 0959-6526

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Over the past 20 years, the spatial distribution of electrical generation and its relationship to cross-regional power transmission has impacted China's power generation system and significantly affected the total amount of NO x and the aggregated nitrogen oxides intensity (ANI) of the system. An investigation of the driving mechanisms of ANI that considers the unevenness of regional electricity generation will be crucial to future improvements in the NO x efficiency of the electrical generation system in China. In this study, we built a decomposition model for ANI by incorporating the spatial distribution of electrical generation and found that the spatial distribution of electricity generation together with energy-related factors gradually caused decreases in ANI. The efficiency of electricity generation presented the dominant inhibitory effect on ANI, but its effect size has weakened since 2010. In contrast, the fossil fuel structure of thermal power shows an increasingly positive effect on changes in ANI. The primary energy composition only slightly affected changes in ANI. Moreover, the changed geographical distribution of electricity generation is non-negligible and has a positive effect on reduction of the ANI of the Chinese electrical generation system. The transferred amount of local NO x emissions by cross-provincial electricity transmission, however, could cause lead to additional environmental costs for generators. This issue should receive more attention in the future.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cleaner Production
Additional Information:
This is the author’s version of a work that was accepted for publication in Journal of Cleaner Production. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Cleaner Production, 222, 2019 DOI: 10.1016/j.jclepro.2019.03.101
Uncontrolled Keywords:
?? aggregated no x intensitychinaelectricity generationgeographical distribution effectlmdielectric power system interconnectionfossil fuelsgeographical distributionnitrogen oxidesspatial distributionaggregated nox intensityelectrical generationelectricity t ??
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23 Apr 2019 09:10
Last Modified:
07 Jul 2024 00:01