Tongwei secures extra 1 billion wafer supply from LONGi as targets over 40GW cell capacity in 2021

September 12, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
Total solar cell shipments in the 1H 2020 were 7.75GW, a 33.75% increase from the prior year period. Image: Tongwei

Major polysilicon and merchant cell producer, Tongwei has secured a monocrystalline wafer supply deal from LONGi Green Energy (LONGi Group) that increases its wafer needs by 1 billion wafers to 2.6 billion as the cell producer plans to have more than 40GW of solar cell capacity in 2021. 

Previously, Tongwei and LONGi entered into a wafer supply agreement that included LONGi supplying 1.4 billion wafer in 2020, 1.6 billion in 2021, and 1.8 billion in 2022 as part of Tongwei’s ambitions of achieving in-house solar cell capacity of 60GW by the end of 2022. 

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 significant increase in the wafer supply agreement comes inline with Tongwei’s updated capacity expansion plans outlined in its first half 2020 financial filings. The company noted that its Meishan Plant, Phase I, which is a 7.5GW facility capable of producing all wafer/cell sizes including 210mm had been put into production. 

However, two separate cell plants, each of 7.5GW are expected to enter production in 2021, which include the Meishan Phase II plant and the Jintang Phase I plant. 

At the end of 1H 2020, Tongwei said it had achieved total solar cell capacity of 27.5GW, which included monocrystalline cell capacity of 24.5GW.

At the end of 1H 2020, Tongwei said it had achieved total solar cell capacity of 27.5GW, which included monocrystalline cell capacity of 24.5GW.

Previously, Tongwei had planned capacity expansions to reach 40GW in 2020, based on market demand, then increasing to 60GW in 2021. Weak demand in the 1H 2020, due to the impact of COVID-19 on operations and global market conditions meant Tongwei experienced cell ASP declines of around 30%, according to the company. 

Total solar cell shipments in the 1H 2020 were 7.75GW, a 33.75% increase from the prior year period. However, due to ASP declines, revenue was around RMB 5.84 billion (US$855 million), a 0.22% increase, year-on-year.

In 2019, Tongwei generated revenue of 12.271 billion (US$1.795 billion) from solar cell and PV module sales, a year-on-year increase of 60.56%.  The sales volume was 13.33GW, a year-on-year increase of 106.92%, and a gross profit margin of 20.33%.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again 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. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

February 4, 2026
In the wake of Russia’s invasion of Ukraine, European energy has gone from an overreliance on Russia to an overreliance on China.
February 4, 2026
US authorities have hit back at a WTO ruling that subsidies for domestically produced solar and other clean energy components discriminate against Chinese firms.
February 3, 2026
The Philippines’ solar and energy storage trade body has warned that diplomatic tensions with China could disrupt the solar industry.
February 2, 2026
India’s Union Budget 2026-27 reinforces government support for renewables through duty exemptions and infrastructure spending.
January 29, 2026
The cost of Chinese solar module manufacturing will rise in the first half of 2026, though prices may fall again before the end of the year.
January 29, 2026
PV module defects are increasing as manufacturers struggle to achieve consistent quality through robust bill-of-material and process controls.

Upcoming Events

Upcoming Webinars
February 18, 2026
9am PST / 5pm GMT
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
October 13, 2026
San Francisco Bay Area, USA