China

An international researc team has included an interlocked self-assembled monolayer in perovskite indoor PV to enhance its stability and durability. Fabricating cells, mini modules, and a prototype device of an electronic price tag, the novel structure was tested. It was found to exhibit a lifetime approaching 6,000 hours.

Researchers from Trina Solar and China’s Nanchang University claim to have verified that back-contact solar modules outperform TOPCon modules only when fewer than three cells in a substring are shaded. Their findings were published in a peer-reviewed scientific paper.

InfoLink Consulting says global module shipments rose 10% to 247.9 GW in the first half of 2025, with JinkoSolar narrowly pushing past Longi and tunnel oxide passivated contact (TOPCon) tech accounting for more than 94% of the total.

Chinese manufacturer Huasun and Italian developer New Time plan to jointly develop a 1 GW heterojunction–perovskite tandem solar line in northern Italy by the third quarter of 2026, with public support and a focus on building-integrated photovoltaic (BIPV) applications.

Chinese researchers, led by a research team from PV Technology Center of Tongwei Co., Ltd, used a sequential annealing process in the fabrication of tandem solar cells, featuring a wide bandgap perovskite top cell on a fully-textured commercial crystalline silicon heterojunction bottom cell. The resulting device had a certified power conversion efficiency of 31.4%, outperforming a 29.43%-efficient control cell.

China Electric Equipment Group awarded nearly all 7,248 MWh in its 2025 energy storage cell tender to 314 Ah products, with winners including Cornex and Trina Storage.

The upward trend of polysilicon prices continued this week, although by only 0.42%, with polysilicon producers keeping utilization rates between 46% and 80%, according to the CNMIA.

China’s reported $7 billion plan to cut polysilicon overcapacity could prompt wafer makers to stockpile lower-cost material and push prices higher, with cell and module suppliers more willing to accept increases, Xin You, senior market analyst at S&P Global, tells pv magazine.

Researchers in China have improved interface engineering in perovskite-silicon solar cells by using industrially textured silicon. The result is a highly efficienct tandem device that also showed remarkable stability.

Chinese manufacturer Anker Solix has introduced the Solarbank Multisystem, along with a Power Dock control unit enabling parallel operation of up to four battery storage units.