Because the electricity in Yichuan county of Luoyang city is supplied by Yichuan coal-fired power plant, it should be related to coal price. In addition, coal is still a non-renewable resource. The coal in Yichuan coal-fired power plant used to be supplied by coal mines in Gaoshan Township, Yichuan, but it is no longer needed. On the one hand, it may not be possible to supply and demand coal mines in Gaoshan Township, Sichuan for so many years, but now Yichuan's factories and mines use more electricity (for example, Yichuan Power Group is an enterprise engaged in coal, power generation, power supply, electrolytic aluminum, carbon and aluminum deep processing, and coal mines have to be supplied from foreign coal mines).