First Solar Sues JA Solar and American Panel Solutions for Patent Infringement
Event summary
- First Solar filed a lawsuit against JA Solar and American Panel Solutions for infringing its US Patent No. 9,130,074, which covers TOPCon crystalline silicon solar cell manufacturing methods.
- The lawsuit was filed in the US District Court for the District of Delaware on October 1, 2026.
- First Solar acquired the TOPCon patent portfolio through its 2013 acquisition of TetraSun, Inc., with patents valid through 2030 and beyond in multiple countries.
- In July 2024, First Solar announced its ownership of the TOPCon patent portfolio and launched infringement investigations against several leading crystalline silicon solar cell manufacturers.
The big picture
First Solar's lawsuit against JA Solar and American Panel Solutions underscores the growing importance of intellectual property in the solar energy sector. The case highlights the strategic value of patent portfolios in a competitive market, where technological advancements like TOPCon solar cells are critical. The outcome could reshape the landscape for solar manufacturers operating in the US, particularly those utilizing TOPCon technology.
What we're watching
- Legal Outcome
- The resolution of this lawsuit will determine the enforceability of First Solar's TOPCon patents and its ability to protect its intellectual property.
- Industry Impact
- The case could set a precedent for patent disputes in the solar industry, affecting how companies approach TOPCon technology.
- Market Dynamics
- The legal action may influence market competition, particularly in the US solar market, where First Solar aims to defend its patented technology.