Reducing PV module temperature with beeswax, paraffin wax
Scientists in Iraq have applied two different kinds of phase-change materials to lower the operating temperatures of PV panels. Their experiment showed that beeswax and paraffin wax are particularly effective in achieving this goal, even when they are combined together.
Sharp unveils 575 W TOPCon solar panel with 22.26% efficiency
Sharp’s new IEC61215- and IEC61730-certified solar panels have an operating temperature coefficient of -0.30% per C and a bifaciality factor of over 80%.
New model to predict defrost cycles, behavior of air-sourced heat pumps in cold weather
UK-based researchers have developed a novel method to estimate the amount of defrost cycles a heat pump will experience in the winter and how much energy it would require to implement the cycles. The results of their simulation showed a strong relationship between the number of defrost cycles and the ambient temperature.
Tesla Cybertruck can power homes
Tesla’s new trucks offer 11.5 kW of power output to homes, and 9.6 kW of output via five plugs.
Inverted perovskite-organic tandem solar cell achieves 23.07% efficiency via metal ion-doped absorber
A group of scientists in Korea has a hot-air technique instead of atomic layer deposition to fabricate a perovskite absorber that reportedly shows a higher film quality. They applied this film in a perovskite-organic tandem solar cell, which exhibited low open-circuit voltage losses and high efficiency levels.
China Three Gorges commissions 1 MW pilot PV plant with perovskite panels
China Three Gorges has commissioned a 1 MW pilot solar plant with perovskite panels near Ordos, in China’s Inner Mongolia region. This marks the world’s first commercial PV system to use perovskite tech and features 11,200 modules from an undisclosed manufacturer.
Hybridizing anaerobic digestion with photovoltaic-thermal energy
Scientists in Spain have proposed to combine anaerobic digestion plants with photovoltaic-thermal panels and have found that this combination may achieve an LCOE of $0.045/kWh across several locations in Europe and North America.
Toshiba develops lithium-ion battery prototype for high-voltage applications
Toshiba has developed a 1.5 Ah lithium-ion battery prototype with a voltage of more than 3 V. The device retains its initial efficiency for over 6,000 charge/discharge cycles and enables rapid charging to 80% of capacity within just five minutes.
Day-ahead forecasting for commercial PV with battery storage
A research group in South Africa has developed a novel method for PV output forecasting in commercial buildings. The proposed approach is purportedly able to accurately forecast the output power of a PV plant using real-time weather data.
Daikin unveils series of residential air-to-air heat pumps
Daikin has released a line of residential air-to-air heat pumps, using difluoromethane (R32) as the refrigerant, with outdoor unit dimensions of 662 mm x 442 mm x 1022 mm. The output ranges from 2.5 kW to 3.5 kW, and the seasonal coefficient of performance (SCOP) is between 4.85 and 5.17.
