Technology and R&D

Pusan National University researchers have found that hydrogen vaporization increases significantly as cryogenic tanks become emptier. The research sheds light on a key technology to transport hydrogen.

The US National Renewable Energy Laboratory (NREL) has achieved remarkable efficiency and stability for a wide-bandgap all-perovskite tandem solar cell. The scientist developed the device with an inverted architecture and used gas quenching instead of an antisolvent in the manufacturing process.

Delectrik Systems says multiple units of its 200 kWh battery system can be connected to build MWh-scale energy storage systems for use in on-grid and off-grid applications.

Alessandro Romeo, associate professor in experimental physics at Università degli studi di Verona, speaks to pv magazine about the advantages of cadmium-telluride (CdTe) solar cells over other thin-film PV technologies, as well as the commercial implications of future efficiency gains and the prospects for industrial expansion.

Chinese manufacturer Hoymiles has developed a new line of microinverters with up to 96.7% efficiency and outputs of up to 2,000 VA. It said they can be connected with up to four high-power solar modules.

The opening ceremony of Abu Dhabi Sustainability Week 2023 was not short of inspirational rhetoric, but the winners of the Zayed Sustainability Prize provided some real-world examples of what action on the local level really looks like.

French research institute CEA-INES has produced a 566 W heterojunction (HJT) demonstrator PV panel using Norwegian silicon wafers based on German polysilicon and solar cells made in France. The prototype has a carbon footprint of 317 kgCO2eq/kW, which is considerably lower than the maximum 800 kgCO2eq/kW standard for Chinese products.

South Africa scientists have developed an integrated, solar-powered heat pump and refrigerator for use by food vendors in sub-Saharan Africa. The dual system is powered by two 90 W solar modules and repurposes waste heat.

PV integration in smart grids is a complex but highly relevant issue, with various aspects to be considered to develop different scenarios. Researchers in the IEA-PVPS Task 14 program are conducting a survey to collect opinions from peers in the PV branch to perform such an analysis.

French energy giant TotalEnergies studied the impact of solar panels on crops in order to develop a repository of agronomic benefits. The initial results show an increase in agricultural yields on field crops and a reduction in water stress.