Changzhou Almaden supplying Tesla glass solar roof tiles

January 29, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
Tesla has also been using Gigafactory 2 for assembly of its third generation of solar roof tiles that was said by the company to be ramping to volume production at the end of 2019. Image: Tesla

Updated: China-based PV and glass manufacturer, Changzhou Almaden Stock Co Ltd was recently forced to declare that it was supplying Tesla with glass encapsulated solar roof tiles, due to abnormal fluctuations in its stock traded on the Shenzhen Stock Exchange.
 
The company noted in the announcements that its shares closing price on January 6, 2020, January 7, 2020, and January 8, 2020 (for three consecutive trading days) as per trading rules, had a cumulative increase of more than 20%. 

The company confirmed that private investors had been using online stock forums to ask the company about rumours it was a supplier to Tesla, not just solar roof tiles but potentially glass products used at Tesla’s new EV factory in Shanghai.

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

Although Changzhou Almaden denied any supply deal in relation to Tesla’s EV models, it confirmed that it had become a qualified supplier of Tesla in recent years and would gradually provide solar tile glass products to Tesla that started in 2019.

However, Changzhou Almaden noted that the current supply transaction amount remained small and did not meet the stock market rules on declaring major contracts. The company noted that the supply of glass solar tiles to Tesla had accounted for only 7% of its 2019 operating income (revenue).

Changzhou Almaden released third quarter financial results in late October 2019, which showed quarterly revenue of approximately RMB 298.9 million (US$43.09 million). The company had previously posted first-half 2019 revenue of approximately RMB 74.56 million (US$74.56 million).

The company has yet to release a profit guidance statement for 2019 and not expected to release full-year results until the end of April 2020. 

Tesla has used several PV module suppliers, some based in China and Singapore for its residential and commercial rooftop business but was also using PV modules made by Panasonic from its Gigafactory 2 in Buffalo, New York state.
 
Tesla has also been using Gigafactory 2 for assembly of its third generation of solar roof tiles that was said by the company to be ramping to volume production at the end of 2019.

Update

PV Tech has recieved confirmation that Changzhou Almaden is supplying the passive glass roof tiles, which are required for edge areas of residential roof's. The number varies, due to the roof design and dimensions as the Gen 3 Tesla 'active' solar roof tiles are pre-assembled in units at Gigafactory 2 to simplify and quicken installation. 

Changzhou Almaden' passive glass roof tiles for Tesla have so far generated around US$8 million in revenue for the supplier in the first nine-months of 2019. 

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

December 23, 2025
The PV Review, 2025: The culmination of years of oversupply of Chinese modules caused module prices to fall, slashing manufacturers’ profits.
December 23, 2025
Chinese researchers have developed a process to boost the efficiency and bifacial performance of TOPCon solar cells while reducing silver consumption.
December 22, 2025
The Chinese government has lodged a complaint against India with the World Trade Organization over alleged subsidies to its solar industry.
December 19, 2025
Wang Bohua, honorary chairman of the China PV Industry Association (CPIA), said that the polysilicon production in China experienced its first year-on-year decline since 2013, while wafer production registered its first year-on-year decline since 2009.
Premium
December 18, 2025
PV Talk: Paul Gebhardt of Fraunhofer ISE discusses reliability issues facing advanced PV modules, an issue which isn't going anywhere.
Sponsored
December 18, 2025
If we imagine the development of PV industry in terms of scale and quality on a single curve, its trajectory has clearly been moving upward.

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