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 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.

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.

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.

Developed by researchers in China, the novel calculator uses current and voltage sensors, a Raspberry Pi, and an algorithm for fuzzy logic to determine variations in frequency and demand. The tool sends Email notifications with the tariff values to the PV system owners.

Researchers at Germany’s Fraunhofer ISE have provided guidelines for future research on perovskite-silicon tandem solar cells by identifying the most significant loss mechanisms at the perovskite/ETL interface, in the series resistance, and in light management.

A Finnish-Norwegian research group has investigated model chains for horizontal-to-vertical solar irradiance conversion in east-west oriented vertical PV systems located at high latitudes. They have found that accuracy and bias of the model chains are different for the east and west sides of solar array.

Hanwha Qcells has closed its 3.5 GW solar factory in South Korea as part of plans to optimize its PV module production capabilities amid a stagnant domestic solar market.

The new product utlizes propane refrigerant with a lower global warming potential and has a seasonal coefficient of performance (SCOP) of over 5. According to the manufacturer, it can achieve a flow temperature of 75 C and 100% heating output at outside temperatures of -15 C.

Wood Mackenzie says in a new report that China could install 230 GW of PV and wind capacity and export more than 200 GW of solar panels in 2023. Unlike Europe and United States, the country is avoiding the high curtailment of PV and wind.