Tongwei Group has set foot in energy and chemical industry from 2004, making his bow in the field of high-purity polycrystalline silicon solar photovoltaic new energy at the end of 2006. Through more than ten years development, Tongwei has formed the most complete photovoltaic new energy industrial chain of propretary intellectual property rights, and has become the core participant and driving force of Chinese and even global photovoltaic new energy industry.
Tongwei Group focuses on the development of solar photovoltaic industry, choosing the links, which has the highest demand such as the "technical threshold, capital threshold, operation and management threshold" and has the largest position and influence in the industry, for layout and creation, and the main layout is in the link of high-purity polycrystalline silicon, battery piece and terminal power station.
Tongwei has formed advantages of industry development at present including: the circular economic pattern of Si Chuan Yongxiang high-purity polycrystalline silicon and chemical industry joint operation is the sole one in the nationwide; Yongxiang Polycrystalline Silicon has been enrolled in the first batch of business directory for high-purity polycrystalline silicon industry access notice by National Ministry of Industry and Information. Tongwei Solar(Hefei & Chengdu) CO.,Ltd. is the production base for battery piece with the largest single-scale; Tongwei combines accumulation of over 30 years for rooting in the development of fishery, and the unique advantages of developing distributed photovoltaic in the terminal of the industry, vigorously develops family Roof-mounted PV, and builds the "Fishery & PV Integration" model.
Yongxiang Co., Ltd
The subordinate of Tongwei Group, Sichuan Yongxiang Co., Ltd. and Yongxiang Wholly-owned Sichuan Yongxiang Polycrystalline Silicon Co., Ltd. conducts vast self-dependent innovations in circular use of resources, material closed operations and by-product recycle, and has realized two complete industry chain of circular economy from "bittern, caustic soda, PVC" and from "hydrogen chloride, trichlorosilane to high-purity polycrystalline silicon new energy". Through several "circle layers", the several companies subordinate to Sichuan Yongxiang Co.,Ltd. put material circulating together with cleaner production, and reached zero release of solid waste and achieved enormous economic benefit and environmental benefit.
By Yongxiang's innovative purification method, the high-purity polycrystalline silicon products can reach 99.99999999%, which greatly exceeds the standand of solar-grade high-purity polycrystalline silicon. This purity approaches the electronic grade and these products can be used as semiconductor materials. At present, the Company has formed 20000-ton high-purity polycrystalline silicon capacity, it becomes the largest one in the southwest region and the top three in China and has the first-class quality in China, and its consumptioin levels and costs are in the lead. On June 30, 2017, Yongxiang's projects of 50000-ton high-purity polycrystalline silicon and its supporting new energy, which is located in Leshan, were officially started construction on June 30; the project of 50000-ton high-purity polycrystalline silicon and its supporting new energy, which is located in Baotou, will be started the construction on September 30, 2017. After these two projects are fully completed, Yongxiang will become the largest high-purity polycrystalline silicon manufacturing enterprise in the world and its annual capacity will reach 120000 tons.
Tongwei Solar Co., Ltd
Tongwei Group is the only vertical integration PV enterprise from the upstream high-purity polycrystalline silicon materials production to terminal PV power plants construction in China. It has several solar energy product manufacturing companies: Tongwei Solar (Chengdu) Co., Ltd. and Tongwei Solar (Heifei) Co., Ltd. . Tongwei Solar (Hefei) Co., Ltd. is the largest single-scale production base in the world with more than 1000 mu floor space, 2000MW solar energy cells capacity in the first phase and 350MW solar module capacity. The various indicators of solar cells produced by the company have reached up to the level of international first-tier photovoltaic industry, and the average transfer efficiency of polycrystalline silicon cell has exceeded 19.5%. The planned construction land of Tongwei Solar (Chengdu) Co., Ltd. is 1200 mu, the efficient polysilicon cell capacity in the first phase is 1000MW, and the highest average transfer efficiency of cell exceeds 21.5%.
Tongwei Solar (Hefei, Chengdu) Co., Ltd. have the world largest single-scale production base of solar cells and the highest automaticity and the largest capacity sacle of single workshop for efficient polysilicon cell line project in the world. At the end of 2017, the capacity of Tongwei solar module will reach to 6000MW, the scale of capacity will be the first in the world, and the highest average conversion efficiency of cell will be over 21.5%. In the next 3-5 years, the capacity of Tongwei solar module will be planned to accomplish total capacity of 10000MW, and at that time Tongwei will become the largest, the most competitive and the most influential world-class cell production enterprise.
Tongwei Fisheries & PV Integration
Tongwei's "Fishery & PV Integration" improves the traditional mode of main photovoltaic power plants and supplemented fishery breeding for the "Fishery & PV Supplementary", expands the application fields of Tongwei solar photovoltaic technology combined with Tongwei "365 Health Aquaculture Model", and forms the unipue innovation of "Fishery & PV Integration" production model. The model "Above can generate electricity, below can keep fish", which does not occupy the land, nor change the original land usage, and it is a kind of efficient and ecological compound land innovation model, and the innovative development model integrating the solar photovoltaic industry and traditional fishery, thus truly realizing three harvests of "fishing, electricity and environmental protection".