Tongwei Solar (TW Solar) is dedicated to R&D, manufacture and marketing of core solar products. As the worldwide largest crystalline silicon solar cell production enterprise, Tongwei Solar has three bases in Hefei, Chengdu and Meishan, over 7,000 full-time employees and more than 13GW capacity. Up to now, TW Solar is rated as the best global supplier and the enterprise exempted from inspection for solar cells for 4 consecutive years. Moreover, major safety accidents and those concerning environmental protection have not been seen for 5 consecutive years, setting a new record in PV industry.
I. Tongwei Solar (Hefei)
TW Solar Hefei base, located in Hefei Hi-tech Industry Development Zone, Anhui province, was put into operation from November 18, 2013 and now has more than 6GW capacity.
Phase I of Hefei Base has 5 poly-crystalline silicon cell production workshops with 40 production lines, ranking top of the line in PV industry.
As Phase II of Hefei Base finished construction on August 1, 2019, Tongwei Solar started the project of 8GW high efficiency crystalline silicon solar cell. This project fully adopts Rear Passivation technology and features in high efficiency mono-crystalline silicon cell unmanned manufacturing, smart factory and digitalized workshop, which will further increase efficiency and boost profitability and consolidate the leading place in high efficiency crystalline silicon solar cell production.
II. Tongwei Solar (Chengdu)
TW Solar Chengdu Base (with 7GW capacity) is located in Shuangliu District, Chengdu, Sichuan province.
Phase I of Chengdu Base was put into operation from June 30, 2016. It took only 7 months to complete construction, which won positive media reviews of “Tongwei Speed”, “Shuangliu Speed” and “Chengdu Speed”. In addition, it has become a model project in global PV industry in terms of fast construction, fast production and fast profitability.
Phase II of Chengdu Base was put into operation from September 20, 2017. It took only 7 months to complete the project even in the case of doubled amount of production capacity and construction works, which further refreshed the record of construction period. The production line of Phase II has been upgraded to automated manufacturing, becoming the model project of “smart manufacturing” in Chengdu. In addition, it pioneers in building digital workshop and smart factory and achieves the goal of clean energy “Made in Chengdu”.
Phase III of Chengdu Base was put into operation from November 18, 2018 after 6 months’ construction period. This project adopts PERC technology and focus primarily on smart manufacturing of high efficiency mono-crystalline silicon cells and building smart factory and digital workshop. It has become the largest single high efficiency crystalline silicon solar cell project that takes the leadership in production technology, equipment, automation and intelligentization in global PV industry.
Phase IV of Chengdu Project was launched on March 23, 2019 and estimated to finish within this year. This project features in unmanned production line, smart factory, digitalized workshop and superior logistic storage. It will be the first 10GW solar cell production base globally and helps Tongwei Solar to achieve the goal of 20GW within this year and 30GW in the future 2-3 years, further strengthening the place of worldwide largest solar cell enterprise.
III. Tongwei Solar (Meishan)
Meishan Project was Located in Ganmei Industrial Zone, Meishan, Sichuan Province. This project with 10GW capacity and 50 new high efficiency crystalline silicon cell production lines was launched on March 27, 2019. All production lines are equipped with automatic mechanical arms and smart delivery robots, which makes it the most intelligentized and eco-friendly green factory with the ability to mass-produce the highest efficiency solar cell.
After Chengdu Base, Meishan Base again becomes the largest high efficiency crystalline silicon cell production base over 10GW. As the project was be put into operation, Meishan Base will be a new mile stone for global PV industry.
IV. Honors and Achievements
Accredited by National Center of Supervision and Inspection on Solar Photovoltaic Product Quality (CPVT), Tongwei Solar’s self-developed passivated emitter back contact mono crystalline cell assembly has a maximum power of 421.9W and a component conversion efficiency of 20.7%. The hetero junction single crystal cell module has a maximum power of 442W and a component conversion efficiency of 21.7%. Which have broken the world record of PV module power and efficiency twice.
Up to now, Tongwei Solar has accumulatively obtained 207 patents（20 for invention and 187 for utility model）and 31 software copyrights.
For the past 5 years, Tongwei Solar has been awarded 200 national and provincial honors, including National Green Factory, Integration of Informationization and Industrialization Management System Pilot Enterprise, National FIVE-STAR Factory, National User Satisfied Enterprise, National High-tech Company, The 7th China Green-Benefit Enterprise, China Trustworthy Group for Quality, China Quality Encouragement Award, Sichuan Province FIVE-STAR Factory, Anhui Province Quality Award and etc.
Tongwei Solar received great feedbacks from the market and was awarded as High Quality Supplier by many clients including Jinko Solar, GCL System Integration Technology, Canadian Solar, Trina Solar, Suntech, ChinaLand, SolarGiga Energy, Risen Solar and etc.
Globally, Tongwei Solar has been accredited and certified by CE, CSA, TüV, CQC and etc.
As the worldwide largest solar cell production enterprise, Tongwei Solar outstripped other companies with 6.5GW overall shipments in 2018 (concluded by PV InfoLink). For 2019, with over 1GW shipments in March and 2.4GW in the first season (90% rise compared to last year), we made the world record of largest shipments within single month and single season in the industry.