Worldwide energy use across global supply chains: Decoupled from economic growth?

Siyi Kan, Bin Chen and Guoqian Chen

Applied Energy, 2019, vol. 250, issue C, 1235-1245

Abstract: Decoupling indicators are widely used to understand links between economic growth and energy use. However, traditional decoupling analyses mostly focus on domestic energy consumption (i.e., the production-based principle) and neglect off-site energy use across global supply chains to satisfy an economy’s final consumption (i.e., the consumption-based principle). Moreover, analyses for total primary energy conceal an economy’s preference for different energy sources. Therefore, this paper evaluates decoupling states of GDP from all types of primary energy use under consumption-based principle, for world economy and eight typical economies during 2000–2011. Regarding total primary energy, world economy witnessed weak decoupling in most years, and most economies studied (e.g., USA, Japan and China) achieved decoupling initially but performed negative decoupling finally. For EU, USA, Japan, Russia and India, production-based decoupling performances were generally better than consumption-based ones. Decoupling phenomena detected under production-based principle even became coupling or negative decoupling under consumption-based principle in some cases. As for each energy source, world economy decoupled from oil use, but still coupled with coal use, and gradually showed a trend to couple with natural gas and renewables use. Different energy sources showed distinct decoupling degrees from GDP, affected by individual embodied energy requirement structure. This paper uncovers potential energy decoupling delusions to deepen the understanding of relationships between energy use and economic growth.

Keywords: Decoupling; Embodied energy; Global supply chains; Input-output analysis; Sustainable development goals (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (33)

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DOI: 10.1016/j.apenergy.2019.05.104

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