China completes 1 GW solar-wind-storage complex in Qinghai desert
Chinese conglomerate CRRC has commissioned a 1 GW hybrid project in Qinghai, combining 700 MW of solar, 300 MW of wind, and 100 MW/400 MWh of storage with Trinasolar’s Vertex tunnel oxide passivated contact (TOPCon) modules.
Floating PV system with ring-like floater geometry
Scientists in China have investigated the hydrodynamic performance of a novel modular floating photovoltaic system. They did so using a novel hybrid approach, which integrates viscous-flow effects from computational fluid dynamics into a potential-flow solver. They analyzed the new system with varying numbers of panels, either in a single chain or a parallel configuration.
Chinese Academy of Sciences developing thermoacoustic heat pump for industrial applications
The researchers developed a heat-driven thermoacoustic heat pump that can purportedly achieve a temperature lift of 125 C. It uses a thermoacoustic heat pump to stably release the heat from the engine unit. The system also includes a thermoacoustic engine unit and acoustic resonators.
Yunt releases MPPT module with 4 independent trackers for C&I use
The Chinese company says that the new product is available in 40 kW, 50 kW, and 60 kW versions. The product has a maximum efficiency of 99%.
Novel MPPT methodology uses grey wolf hunting as inspiration
Researchers have developed a maximum power point tracking algorithm based on the social hierarchy and hunting strategy of grey wolves. When tested under realistic shading conditions, the grey wolf optimizer achieved an average MPPT efficiency of 98.15%, significantly outperforming conventional MPPT methods.
Sungrow debuts 2.5 kW microinverter
The Chinese company said its new microinverter supports four independent MPPT inputs with DC input currents up to 18 A.
All-perovskite PV-powered battery for portable electronics
Scientists have used a dual-functional, material-sharing strategy with ethyl viologen diiodide to achieve synergistic performance enhancement in PV-powered batteries. The system was reportedly able to power a wearable glucose monitor for 24 hours.
New model for LeTID prediction in gallium doped silicon wafers
Researchers at Fraunhofer Institute for Solar Energy Systems in Germany developed a predictive model for light and elevated temperature induced degradation in gallium-doped silicon wafer that includes the effects of temporary recovery.
Using drones, satellite and ground data to map vegetation in PV plants
Scientists have developed a multi-scale method to assess vegetation conditions inside PV power plants. The research focused on nine PV plants in China across diverse climate zones. Compared to satellite estimates alone, the method reduces bias by 16.98%.
SAJ launches HS3 6-in-one home battery with 40 kWh storage
China’s SAJ has launched its HS3 6-in-one home battery series, available in single- and three-phase configurations with 1,000 W to 15,000 W of PV input and up to 40 kWh of lithium iron phosphate (LiFePO4) storage.
