Shenhua Yili Power Plant is a coal gangue power plant with the largest installed capacity in China. This boiler is the first 200MW circulating fluidized bed boiler with independent intellectual property rights in China. This steam turbine is also the first 200MW direct air-cooled steam turbine with double cylinders and double exhaust in China. After the completion of the power plant, 3.6 million tons of low calorific value fuels such as local coal gangue can be used every year. Due to the adoption of direct air cooling technology and industrial wastewater reuse technology, the annual water consumption is only 2.45 million cubic meters. The water consumption index is only 0.0 18m3/s GW, which is superior to similar units in the same area. The project adopts clean energy technologies such as in-furnace desulfurization and low combustion, and the emissions of sulfur dioxide and nitrogen oxides are greatly reduced, both reaching or lower than the requirements of national standards. It will have a positive impact on protecting and improving the local ecological environment if the furnace ash residue generated by power generation is made into cement on the spot. Shenhua Yili Power Plant organically combines coal gangue, power generation, chemical industry, comprehensive utilization of fly ash and other industries to form a complete industrial chain, which has the remarkable characteristics of high technology content, long industrial chain and good social benefits, and is a model for developing circular economy.