The company introduced the world-leading improved Siemens polysilicon production process from Germany, the United States and Japan, and achieved the successful landing of international advanced technology through digestion and absorption and technological innovation. At the same time, relying on the national patent hydrochlorination device independently developed, silicon tetrachloride, a by-product in polysilicon production, can be completely converted into trichlorosilane, a raw material in polysilicon production, so as to realize the recycling of materials, reach the environmental protection emission standard and greatly reduce the production cost. It has reached the world leading level of manufacturing high-quality polysilicon with low energy consumption, environmental protection and low cost. At the same time, the quality and output of polysilicon products were further improved by actively implementing technical transformation. In the future, the company will focus on developing new technologies "silane method" and "fluidized bed method" to replace "Siemens improvement method", and the energy consumption, production cost and product quality will further reach the most advanced international level.
On the basis of the production scale of 10,000 tons of polysilicon in Zhongneng Silicon Industry, GCL actively expanded downstream. In September, 2009, a polysilicon wafer slicing base with a total scale of 2GW was built in Xuzhou with an investment of 5 billion yuan, which was officially put into operation in June, 20 10, and it is planned to eventually form a production capacity of 2GW by the end of 20 10. The largest 20MW solar power station project in China, invested and built by Zhongneng Silicon Industry under GCL, was officially put into operation on June 5438+February 3 1 2009.