Identifing Key Sectors And Supply Chain Paths Of China’s Electricity Consumption Base On EEIOA Method

China is the world’s largest electricity consumer,and understanding the electricity consumption of the Chinese economy is a prerequisite for proper energy conservation and emission reduction policies,as its coal-burning electricity system puts increasing pressure on environmental pollution and climate change.Based on the EEIOA method,this paper studied China’s electricity consumption from the perspective of supply chain,identified the key sectors and supply chain paths for China’s electricity consumption,and provided a new perspective for the formulation of targeted power energy conservation policies and the assessment of energy conservation potential in various industries.Firstly,based on China’s input-output and power consumption data,this paper proposes for the first time a power consumption flow model based on domestic supply chain network,and takes the lead in identifying key sectors of power consumption by using Power-of-Pull(POP)analysis method.The results show that although the power generation sector and the metal industry sector are the key sectors of China’s power consumption,four of the five sectors driving the fastest growth of power consumption in other sectors are the service sector,and the influence of the service sector on China’s power consumption is increasing rapidly.Then,this paper divides China’s electricity consumption into three parts,which are driven by investment,consumption and export.Using the structural path analysis(SPA)method,the flow and flow direction of electricity consumption from actual consumption to final use-driven consumption were tracked in China’s domestic supply chain network from 2002 to 2015.The results show that about 40% of the specific electricity consumption in China is driven by investment,and the construction industry accounts for about 60% of the investment-driven electricity consumption.The most critical supply chain paths identified for China’s electricity consumption are: Capital formation-Construction-Non-metallic mineral products.From the perspective of industry structure of specific power consumption,heavy industry accounts for about 40%of the total electricity consumption,followed by construction industry,which accounts for 25% in 2015,up from 21% in 2002.In addition,compared with2002,the specific electricity consumption of production layers in most industries was more evenly distributed in 2015,indicating that the supply chain relationship of most industries has become more complex.Finally,this paper used the input-output table of 139 sectors to conduct a more detailed POP and SPA analysis.The results showed that compared with the input-output table analysis of 39 sectors,the higher-resolution input-output table can obtain more targeted results and identify the key sectors and supply chain paths that are hidden in the broad categories.In addition,based on the research results,this paper also puts forward suggestions on formulating energy conservation policies related to the service industry,and proposes to formulate energy conservation policies targeted at key supply chain paths of electricity consumption,so as to provide certain reference value for accurate energy conservation policy formulation.