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.

20 April 2027
Istanbul, Türkiye
PV Tech has been running PV CellTech Conferences since 2016. PV CellTech Global, on 20-21 April 2027, is the meeting place for everyone invested in the growth of PV manufacturing and advancement in cell technologies, which will drive us towards the installed capacity required to power the planet by 2050. This is a gathering of key stakeholders driving capital expenditure and technologies for new PV manufacturing plants across the globe to harness the opportunities the growth of PV represents out to 2050 and beyond. The conference takes place in one conference room, where all senior peers have the same shared experience of learning and unique insight, unmatched anywhere else in the solar industry events calendar.

Read Next

July 16, 2026
LONGi’s has unveiled a suite of new technologies intended to demonstrate how the PV industry can innovate its way out of its current malaise.
July 16, 2026
LONGi's crystalline silicon-perovskite tandem solar cell has achieved a power conversion efficiency of 35.5%.
July 16, 2026
German solar energy research institute ISC Konstanz has appointed Dr Gerhard Mathiak as its head of its module department.
July 16, 2026
The first Chinese polysilicon manufacturer has secured a certification from the Solar Stewardship Initiative’s (SSI) supply chain traceability standard.
July 16, 2026
Oman has announced US$1.7 billion for 105 projects and investments across a number of sectors, including solar cell and module manufacturing.
July 16, 2026
In the second of a two-part post, Moustafa Ramadan, head of PV Tech Research, explores the increasingly complex risks associated with solar cell procurement in the US.

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
April 20, 2027
Istanbul, Türkiye