LONGi accelerates mass production and collaborative innovation for BC technology

LONGi, a leading developer and manufacturer of back-contact (BC) solar technology, has initiated an effort to establish a Global BC Ecological Collaborative Innovation Center. The center’s core focus would be to advance BC technology through an open innovation ecosystem. On the same day, LONGi signed cooperation agreements with Laplace, Shaanxi Xingbei New Energy Technology Co., Ltd., and Jiangyin Haida New Energy Materials Co., Ltd. to jointly develop BC-related technologies and products.

LONGi stated that it is committed to building a BC ecosystem. As of the end of May 2025, it had formed 55 collaborations with 44 global ecosystem partners and completed 23 technology deployments across the value chain. These deployments cover all BC-related areas, including silicon wafers, cells, modules, system solutions, hydrogen energy, biomass, and engineering technologies.

In a recent roadshow presentation, the company reported a stable monthly output of 2 GW for its HPBC 2.0 cells, with a production yield of 97%. For 2025, LONGi aims to ship 80 GW to 90 GW of solar modules.

Last month, LONGi announced that it will allocate RMB 1.08 billion ($150 million) to its BC cell subsidiary to support the implementation of a 12 GW high-efficiency monocrystalline cell facility (see China Solar PV News Snippets).