Astronergy, JA Solar to ‘terminate’ patent disputes, reach cross-licencing agreement

Facebook
Twitter
LinkedIn
Reddit
Email
a solar pv project in Egypt.
JA Solar first filed a lawsuit against Astronergy in August 2025. Image: Astronergy

Astronergy and JA Solar have announced plans to “terminate” all ongoing patent disputes, and have “reached an agreement on cross-licencing” of tunnel oxide passivated contact (TOPCon) patents moving forward.

The Chinese module manufacturers said that the agreement, reached over the weekend, sets a precedent for “health and sustainable intellectual property cooperation” in the solar PV sector, which has seen a number of patent lawsuits in recent months.

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

Earlier this year, fellow Chinese giants Jinko and LONGi ended their own patent disputes, and both the Jinko-LONGi agreement and the Astronergy-JA Solar deal include the term “cross-licensing” to refer to the various’ companies’ uses of technologies covered by each others’ intellectual property agreements.

Astronergy and JA Solar also noted that neither company will initiate “litigation or other proceedings” against the other pertaining to TOPCon patents anywhere in the world, suggesting that this will bring a permanent end to TOPCon patent disputes between the two companies.

The announcement brings to an end close to a year and a half of legal turmoil, which began with JA Solar filing a lawsuit for alleged TOPCon patent infringement in Europe against a then-unnamed manufacturer. In the following weeks, the dispute spread to the European Patent Office, and involved French start-up PV producer Carbon, over uncertainties regarding two JA Solar patents, pertaining to the structure of TOPCon cells, the arrangement of electrodes on solar cells and the leads connecting the cells that make up a module.

“We believe this outcome will help foster a healthier and more orderly innovation environment across the industry, encourage fair and dynamic competition and contribute to building a well-regulated and sustainable intellectual property landscape,” said Astronergy and JA Solar of their agreement. “Together, we aim to support global energy transition and contribute to a low-carbon future.”

The emphasis on a “healthier” market environment is notable, as the ongoing oversupply of modules in China, combined with disruptions to global supply chains distancing particularly European and North American buyers of Chinese products, has led to a collapse in module prices.

Earlier this year, China’s top four module manufacturers—including LONGi, Jinko and JA Solar—posted losses of over US$1.5 billion, and while patent agreements alone will likely not reverse this trend, there appears to be a growing acceptance in the industry that collaboration is necessary to ensure the long-term financial health of the sector.

Read Next

September 25, 2026
Welcome to the PV Tech Best of the Week roundup, covering the week's biggest stories from the global solar industry.
September 24, 2026
LONGi has unveiled a hybrid interdigitated back contact (HIBC) solar cell with a conversion efficiency of 28.29%, a record for the company.
September 22, 2026
The Canadian International Trade Tribunal (ITT) has terminated anti-dumping (AD) and countervailing duties (CVD) on certain solar PV modules and laminates from China.
September 21, 2026
Premier Energies has commissioned a 7GW n-type TOPCon G12R solar cell manufacturing plant in Naidupeta, Andhra Pradesh.
September 21, 2026
A Chinese satellite carrying prototype heterojunction solar modules produced by the leading PV manufacturer JA has been launched into Earth’s orbit.
September 18, 2026
This week's PV Chart of the Week looks at the breakdown in forecast global PV module shipments by country/region.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye