Researchers in Italy have developed a sun-tracking PV system design for stadium covers. The proposed approach is said to offer both strong structural response and high energy yield compared to systems based on fixed structures.

A research group in India has embedded a hybrid heterojunction solar cell as a bottom device in a four-terminal perovskite-silicon solar cell using a solution processing technique. The novel cell architecture, according to its creators, could be produced at significantly lower costs compared to conventional perovskite-silicon tandem designs.

The global solar module industry is expected to regain a sustainable balance in the next six months, Yana Hryshko, head of Solar Supply Chain Research for Wood Mackenzie, told pv magazine. She explains why solar module prices may increase soon, suggesting that Tier 1 modules prices could reach $0.14-$0.15/W by the end of this year, and discusses how consolidation is materializing within the global PV industry.

First Solar sues JinkoSolar for alleged TOPCon patent infringement
First Solar has sued JinkoSolar in a US federal court in Delaware, claiming that the Chinese manufacturer infringed upon US Patent No. 9,130,074, which is related to tunnel oxide passivated contact (TOPCon) solar technology.

Researchers in Germany have compared the electrical behaviour of sodium-ion batteries with that of lithium-iron-phosphate batteries under varying temperatures and state-of-charges. Their work shows how state-of-charge during cycling significantly affects the efficiency of sodium-ion devices.

Radovan Kopecek, an expert on back-contacted (BC) solar cell and module technologies, spoke with pv magazine about BC manufacturing costs, efficiency and technical challenges. He believes that global BC solar module manufacturing capacity could reach 1 TW by 2030, potentially making BC products the industry’s mainstream technology. Kopecek added that 2028 will be a crucial year for its development, as most of the critical patents associated with this module tech will expire.

Scientists in China built a four-terminal perovskite-CIGS tandem solar cell based on a top semi-transparent perovskite device with an efficiency of 21.26% and a high bifaciality factor of 92.2%. They used a solvent-annealing strategy to produce a perovskite film with full coverage, larger grains, superior crystallinity and free of detectable lead iodide impurity.

Researchers at the University of New South Wales have used a 1 µm copper plating layer on the front silver grid of a TOPCon solar cell to create a protective barrier that reportedly reduces corrosion susceptibility. The cell showed significantly lower contaminant-induced degradation that unprotected reference devices.

Scientists in Saudi Arabia have assessed the techno-economical feasibility of floating PV plants at three different dams and have found that such projects could have a return on investment of 12 to 13 years.

Mellow Energy claims its ML-Flex panel is currently the world’s largest flexible perovskite solar module. Available in five versions with power output ranging from 260 W to 300 W, the module measures 1,200 mm x 1,600 mm and weighs only 2.04 kg.