Longi achieves 25.21% efficiency for TOPCon solar cell
The Chinese module manufacturer said the result was confirmed by the Institute for Solar Energy Research in Hamelin, Germany.
Flexible bifacial kesterite solar cell at 9.3% efficiency
Scientists in China developed a new kesterite solar cell they say could be suitable for indoor or outdoor applications. The bifacial solar cell reached 9.3% frontside efficiency, and also achieved a 9.0% on the backside.
Chinese PV Industry Brief: Another massive polysilicon order, Tongwei starts operations at 30 GW cell factory
GCL-Poly will provide JA Solar with 148,000 metric tons of polysilicon over the next five years. Tongwei produced its first 210mm PERC cell at its Jintang factory.
New factory in Spain to produce and repair solar modules
The 50 MW facility is located in the region of Navarra and is operated by German specialist Rinovasol. The company buys, fixes and certifies the panels and puts them back on the market, with a new datasheet and a five-year warranty.
Swedish perovskite startup picks up new investment
Norway based renewables investor Magnora has increased its stake in startup equipment supplier Evolar, which is aiming to bring a production line for perovskite solar cells to market. Magnora will now hold a 40.7% stake in the company as part of a long-term deal between the two, with options to further increase the stake available down the line.
Artificial neural networks and fuzzy logic for fault detection in PV systems
Researchers in China have developed a fault detection method for PV systems that combines both neural networks and fuzzy logic principles within a single framework. It considers seven input variables and an output variable.
Module testing reveals increase in mechanical failures
Last week, testing specialists PV Evolution Labs launched its latest Module Reliability Scorecard, which names more than 100 products from 26 manufacturers as top performers, after being put through their paces in extensive lab testing. This year’s scorecard reveals an increase in modules seeing at least one failure during the testing procedure, with newly added mechanical stress procedures causing the greatest number of failures.
Adhesive mounting system for any kind of solar modules
The system, developed by Spanish specialist Alusín Solar, is being tested by Endesa in a 9.8 MW project for self-consumption. The mounting structure is made with aluminum bars that, instead of being fixed to the roof with screws, are attached through a double-sided adhesive.
JinkoSolar improves efficiency of n-type monocrystalline TOPCon solar cell by 0.35%
The Chinese module manufacturer said the record efficiency of 25.25% was obtained through material upgrades integrated into the cell process and fabrication. The result was confirmed by China’s National Institute of Metrology.
Lead-free perovskite solar cell with potential efficiency of 27.4%
Scientists in India have simulated a perovskite cell based on methylammonium tin iodide which they claim may achieve a short circuit current density of 25.97 mA per square centimeter, an open-circuit voltage of 1.203 V, and a fill factor of 87.79%. The cell is composed of a fluorine-doped tin oxide (FTO) substrate, a titanium oxide layer, a methylammonium tin iodide perovskite film, a copper oxide hole transport layer (HTL), and a layer made of gold (Au).
