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Longi claims world’s highest efficiency for p-type, indium-free HJT solar cells

Longi said it has achieved a 26.56% efficiency rating for a gallium-doped, p-type heterojunction solar cell and a 26.09% efficiency rating for an indium-free HJT cell, both based on M6 wafers. Germany’s Institute for Solar Energy Research in Hamelin has confirmed the results.

Growatt releases new battery for rooftop solar applications

Growatt’s new APX HV cobalt-free lithium iron phosphate (LFP) battery has a storage capacity of 5 kWh and a nominal voltage of 650 V. It can be scaled up to six battery modules, for a maximum capacity of 30 kWh, or 60 kWh in parallel. It comes with a 10-year warranty.

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Rooftop system with PV panels, mini wind turbines in the Netherlands

Ibis Power has developed a rooftop system that combines solar with wind turbines designed for medium-sized structures and high-rise buildings. It claims its PowerNEST system can produce six to 10 times more energy than standalone rooftop solar. The company has already installed five projects in the Netherlands.

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Polysilicon prices trending downward

PV InfoLink says polysilicon prices are clearly starting to fall. Meanwhile, Longi has lowered the prices of all wafers, and JA Solar has unveiled plans to build a new 10 GW factory.

Risen, Longi announce new solar factories

Risen and Longi have revealed plans to each build 10 GW factories, while Canadian Solar has reported solid earnings and Daqo has secured a big polysilicon order.

Interactive chart of solar cell efficiency updated

The US National Renewable Energy Laboratory (NREL) has released a new, interactive version of its research cell efficiency chart for a range of PV technologies.

Powin, BlackRock start working on world’s largest battery

US battery specialist Powin and US investment firm BlackRock have started work on a 909 MW/1,915 MWh battery energy storage system (BESS) in Australia. Construction is set to begin in 2023 and will finish by mid-2025.

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Taiwanese consortium develops easily recyclable solar module

The Industrial Technology Research Institute (ITRI) and United Renewable Energy (URE) have developed a solar panel that can be easily dismantled to simplify the recycling process. They claim 96% of the materials in the panel can be recovered, including all of the solar cells and front glass.

India, China, US rated world’s most attractive solar markets

Australia features prominently in the top 10 but the latest edition of Ernst & Young’s renewables attractiveness index rates India as the top market for solar investment while Spain, Germany and the United States are the top three markets for corporate power purchase agreements.

Floating ‘artificial leaf’ for solar-to-hydrogen production

A team of scientists from the University of Cambridge have developed lightweight floating photocatalyst devices that produce green hydrogen and syngas. The leaf-like photoelectrochemical devices show potential for scalability.

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