Abstract

Nowadays China has entered a critical period of comprehensive green transformation of economic and social development. At present, scholars mostly use the Sankey diagram to draw energy flow diagrams, but there are many lines and many detailed data that are difficult to view. In this paper, according to the energy statistics, China's energy flow diagram in 2018 is drawn by simplified symbols, and the supply side, processing and conversion links, and consumption side of energy were analyzed. According to fossil energy consumption, the reasons for the increase in energy consumption were analyzed. The results show that in 2018, the total primary energy production in China increased by 8.6% compared with that in 2016, and the self-sufficiency rate of China's energy supply was 78.6%, China's total energy consumption in 2018 increased by 7.5% compared with 2016. Finally, some suggestions for energy conservation and energy transformation are put forward.

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