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 8,700 full-time employees. By the end of 2019, the overall manufacturing capacity of Tongwei Solar is going to surpass 20GW, while its worldwide market shares are expected to be 10%-12%. The total capacity of Tongwei Solar may well exceed 30GW, further keeping the championship in PV cell industry.

Up till now, TW Solar has achieved sustainable profit, full production with sales and operation rate of 100% consecutively in 63 months, and is rated as the best global supplier and the enterprise exempted from inspection for solar cells for 5 consecutive years. Moreover, major safety accidents and those concerning environmental protection have not been seen for 6 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 January 8, 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.

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II. Tongwei Solar (Chengdu)

TW Solar Chengdu Base (with 10GW capacity) is located in Shuangliu District, Chengdu, Sichuan province., which is the worldwide biggest manufacturing base of crystalline silicon cell.

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 intelligent degree in global PV industry.

Phase IV of Chengdu Project came into operation on November 18, 2019, taking only 7 months to build. This project was newly built, completed and put into production in 2019, which renewed the record of a single workshop’s manufacturing capacity, ranking Tongwei Solar as the most productive single workshop, the most advanced technical skills and production user, the most unmanned and intelligent workshop and an global representative of PV industry. There are totally 16 digitalized production lines producing large-size cell with lower cost and better performance, which consist of automatic mechanical arms and intelligent carrier robot, further contributing to the smart, intelligent,modernized and elaborative management of Tongwei Solar.

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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 carrier 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 with over 10GW capacity. As the project was 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 6 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 5-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 5-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, JET,SGS,CQC and etc.

As the worldwide largest solar cell production enterprise, Tongwei Solar outstripped other companies with 6GW overall shipments in the first half year of 2019 (97% rise compared to last year). According to the statistics provided by PV InfoLink, we kept the record of largest manufacturing capacity and output in the industry.

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