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.
Japan’s latest procurement exercise was open to PV projects above 250 kW in size. The lowest price came in at JPY 7.94 ($0.053)/kWh, with 105 MW of allocated capacity.
Bernreuter Research says in a new report that it expects polysilicon prices to soon dip below the historical low of $6.75/kg, which was reached in June 2020. It says global polysilicon capacity could hit 2.95 million metric tons (MT) by the end of December, with just 200,000 MT of the total outside of China.
Scientists in India have developed a 500 W seven-level inverter prototype based on switched capacitors. The device is reportedly able to achieve a high efficiency despite switching, conduction, and capacitor voltage ripple losses.
Infinite Turbine has developed a heat pump turbine for residential and commercial applications, using PV or alternative electricity sources for simultaneous cooling and hydraulic power. The tech can be retrofitted with existing CO2 heat pump systems for air conditioning, hot water, and process heat.
An international research group has utilized through-substrate-vias to create 3D interconnections in III-V solar cells with a triple-junction architecture. The novel cell design was found to have a low shading factor of below 3% and a 6-fold increase in wafer area use compared to cells based on 2D interconnects.
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