A production base for key membrane materials used in airborne wind power systems, operated by Beijing Linyi Yunchuan Energy Technology, began operations on May 15 in Zhoushan, East China's Zhejiang province, marking a shift toward domestic large-scale manufacturing and reduced reliance on imported technology.

The new facility produces a lightweight, composite-skin-like material for airborne wind power systems, designed to serve as a protective outer layer for high-altitude energy equipment. This material combines low weight, strong sealing performance, and high durability, enabling airborne wind platforms to operate in the stratosphere for up to 20 years.

The project is seen as a key step in overcoming technological bottlenecks in high-altitude wind power development, a field focused on harnessing energy from strong upper-atmosphere winds.

According to Xu Jianjun, project director of Beijing Linyi Yunchuan, the membrane materials had previously relied on overseas suppliers, with high costs and long delivery cycles limiting industrial scaling. The Zhoushan base is expected to significantly reduce production costs and shorten procurement time.

The facility currently plans to establish two wide-width dry composite production lines with an annual capacity of up to 200,000 meters, with full capacity expected by 2028. Once fully operational, the output could support around 30 airborne wind power systems.

Zhoushan was chosen for its strong petrochemical industry base, supportive business environment, and rich wind resources, all of which could support future energy cooperation projects.