Chinese PV Industry Brief: Longi, Tongwei announce losses for fiscal 2025
Longi, and Tongwei have predicted steep losses for fully fiscal year 2025, as persistent oversupply and falling solar module prices continue to pressure margins across China’s PV manufacturing sector.
Agrivoltaics for tea plantations
CHN Energy, via its subsidiary Guohua Energy Investment, is constructing a solar project above a tea plantation in southwestern China, with the first 32 MW now connected to the grid.
Scientists build tin lead perovskite solar cell with 24.07% efficiency
A Chinese-Swedish research team has boosted the performance of tin-lead perovskite solar cells by modifying additives and post-treatment processes. The device also demonstrated improved stability, retaining 60% of its initial efficiency after 550 hours at 85 °C under maximum power point conditions.
Chinese battery makers scale up from 314 Ah to 500 Ah-plus LFP cells
China’s leading stationary storage battery manufacturers are accelerating the rollout of 500 Ah-plus lithium iron phosphate (LFP) cells, betting that larger formats can cut system complexity and lift energy density in 6 MWh-class containers, even as safety, yield, and standardization challenges intensify.
‘An immediate transition to copper is technically and economically feasible’
With silver prices rising, more large solar manufacturers are expected to switch to copper for cell metallization. Radovan Kopecek of ISC Konstanz tells pv magazine that he expects the entire industry to follow. Ning Song of the University of New South Wales says a small efficiency tradeoff may be acceptable if the cost savings are significant and do not introduce new reliability risks.
Sungrow releases new inverters, storage system for utility and C&I solar
Chinese manufacturer Sungrow has introduced a new utility string inverter, a three-phase hybrid inverter for commercial and industrial (C&I) applications, and a liquid-cooled energy storage system.
EGbatt releases 15 kWh storage solution for residential use
The Chinese firm has unveiled its latest energy storage solution, the ENERpro-LFP48300, equipped with a 48V, 300 Ah lithium battery. The company boasts a lifespan of over 9,500 cycles at a high 95% depth of discharge.
Scientists achieve 32.6% efficiency in perovskite-silicon tandem solar cell via interface engineering
Researchers from KAUST, TU Delft, and LMU Munich have improved the performance of monolithic perovskite-silicon tandem solar cells by modifying the physical structure at the front of the bottom heterojunction solar cell.
Ideal Energy commissions AI-enabled flexible HJT pilot line for space
China-based PV equipment supplier Ideal Energy (Shanghai) Sunflower Semiconductor has completed an AI-enabled pilot line for ultra-thin, flexible heterojunction (HJT) solar cells, targeting lightweight power systems for space and near-space applications.
China completes first full-scale underwater pumped storage trial at 65 m depth
DEC’s “Dongchu No. 1” prototype completed more than 100 charge-discharge cycles at 65 meters depth in a freshwater lake.
