GameChange Solar, a wholly owned subsidiary of GameChange Energy, has filed a patent infringement lawsuit against solar tracker manufacturer Nextpower in the U.S. District Court for the District of Delaware.

The lawsuit alleges that Nextpower infringed GameChange’s patent covering its proprietary high-tilt stow technology used in its single-axis solar tracker systems.

The company also claimed that Nextpower’s products infringe one or more claims of the patent.

The company is seeking injunctive relief to prevent further alleged infringement and monetary damages.

GameChange said it developed its high-tilt stow technology to protect solar assets and improve project uptime. The technology enables tracker systems to move modules to high-tilt positions under certain weather conditions.

The lawsuit follows the patent infringement case filed by Nextpower against GameChange Solar in a district court in Delaware in June 2026.

Nextpower had alleged that GameChange infringed three patents related to its self-powered solar tracker technology and TrueCapture energy management control system with its Genius Tracker systems and associated software.

The cases come amid a growing number of intellectual property disputes across the solar sector, particularly over advanced cell and module technologies such as tunnel oxide passivated contact (TOPCon).

In August, the U.S. International Trade Commission (USITC) terminated its investigation against Philadelphia Solar USA and Trina Solar after First Solar withdrew its complaint alleging infringement of its U.S. patent claims related to TOPCon solar cells, modules, and related products.

USITC had initiated the Section 337investigation into imports of TOPCon solar cells and modules this March based on First Solar’s complaint.

In the same month, renewable energy solutions provider Canadian Solar announced the resolution of the remaining U.S. patent litigation brought against it by Maxeon Solar Technology over TOPCon solar cell technology. A U.S. federal district court dismissed Maxeon’s patent infringement lawsuit against Canadian Solar with prejudice.

In March, USITC initiated a Section 337 investigation into imports of TOPCon solar cells and modules, naming three Indian companies among a broad list of global manufacturers accused of patent infringement.