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Technology and R&D

New residential battery inverter solution from China

Esysunhome (ESYSH), a new energy storage company in China, has developed a 5.12 kWh lithium iron phosphate (LFP) battery system with a 7.9 kW inverter. It says six modules can be combined for up to 30.72 kWh of energy storage capacity.

New modular solar solution features cost-cutting ‘slide-together’ system

Green Energy Systems has unveiled a new Australia-made prefabricated modular PV solution for large-scale applications that purportedly offers significant cost reductions by eliminating all stainless-steel nuts, bolts and other traditional fitments in favor of a “slide-together” aluminum junction system.

Agrivoltaics based on light spectrum optimization

US scientists have discovered that using wavelength-selective, semi-transparent PV modules to absorb the blue light spectrum while transmitting red light onto crops can increase crop yield.

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Nextracker to go public

Flex has revealed that its Nextracker subsidiary has publicly filed documents with the US Securities and Exchange Commission (SEC) to launch an initial public offering.

Only5mins! – Thin-film solar researcher discusses future of CIGS

The future outlook for copper indium gallium selenide (CIGS) solar cells is bright, due to recent R&D achievements and efficiency gains, according to Ayodhya Tiwari, head of laboratory at Switzerland’s Federal Laboratories for Materials Science and Technology (EMPA). CIGS has already shown its value in building-integrated PV applications, but as production volumes increase in the years ahead, ground-mount plants and big utility-scale installations could also become feasible, says Tiwari.

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Storing hydrogen in cryogenic tanks

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.

All-perovskite tandem solar cell with 27.1% efficiency via gas quenching

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.

India’s Delectrik Systems starts commercial production of containerized redox flow battery systems 

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.

Only5mins! – Thin-film expert on potential of cadmium-telluride solar

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.

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Hoymiles reveals microinverters for high-power PV modules

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.

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