Tongwei and Trina Solar mark first ramp at 15GW cell, wafer facility

November 4, 2021
Facebook
Twitter
LinkedIn
Reddit
Email
A ceremony marking the first production at the facility was held on 28 October 2021. Image: Trina Solar/Tongwei.

The first manufacturing line at a 15GW solar wafer and cell manufacturing facility in Chengdu co-owned by Trina Solar and Tongwei has begun to ramp.

A ceremony to mark the start of production was held late last week, just 32 days after manufacturing equipment began to be installed at the site in Chengdu, Sichuan Province, China.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The facility is owned by Tonghe New Energy, a joint venture established by cell provider Tongwei and ‘Solar Module Super League’ member Trina Solar earlier this year. It will produce 210mm solar wafers and cells, doubling down on both manufacturers’ commitment to the M12 wafer format.

The facility is brought forward as part of Trina and Tongwei’s cell and wafer alliance which was struck last year to invest some US$2.3 billion to develop various upstream manufacturing projects in China. As well as the 15GW wafer and cell fab in Chengdu, polysilicon and silicon rod facilities in Baotou and Leshan respectively were also announced.

All facilities under the partnership are to be owned 65% by Tongwei and 35% by Trina Solar.

A statement issued by both parties marking the start of production at the site lauded the automated manufacturing facilities installed at the site, stating it marked the beginning of a “new stage in lean production and production processes”.

The ramp also serves to further Trina Solar’s buildout of its 210mm supply chain, and more specifically the manufacturing capacity of its Vertex range of PV modules, with the SMSL manufacturer intending to establish a total module manufacturing capacity for the product range of 10GW by the end of this year and 30GW by 2023.

9 March 2027
Location To Be Confirmed
PV CellTech Global will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. Join us in Q1 of 2027

Read Next

January 9, 2026
China’s market supervision body has warned of monopoly risks in the plans to consolidate the country’s polysilicon sector.
January 8, 2026
SunPower and the REC Group have unveiled a new 470W solar panel, dubbed 'Monolith', which is designed for use in the US residential sector.
January 7, 2026
Japanese cell and module manufacturer Toyo Solar has secured a supply agreement to source US-made polysilicon capacity.
January 7, 2026
Indian independent power producer Inox Clean Energy and its subsidiary Inox Solar have tied up equity totalling INR31 billion (US$340 million).
January 5, 2026
Solar PV installations in India have surged in 2025 with a record 34.98GW of new additions, according to the Indian Ministry of New and Renewable Energy.
January 2, 2026
SJVN has commissioned a 1GW solar PV plant in Rajasthan, India, its largest solar project to comply with India’s DCR rules.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
November 24, 2026
Warsaw, Poland