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Technology and R&D

5B uses modular, relocatable solar tech for 89.7 MW hybrid microgrid

Modular solar array manufacturer 5B has started building the solar component of an 89.7 MW hybrid microgrid that will help Bellevue Gold’s gold mine in Australia with up to 100% renewables.

Perovskite solar cell engineered with crown ethers achieves 21.7% efficiency

Researchers utilized crown ether B18C6 and interfacial passivation at the perovskite-hole transport material interface to address lead leakage, improve power conversion efficiency and the cell’s ability to withstand humidity.

Sprsun launches residential air source heat pump

The Chinese manufacturer said its new heat pump has a coefficient of performance of 4.2 at 7 C and a maximum heating capacity of 9.1 kW. It can reportedly achieve a topwater output temperature of 75 C.

Iron-based redox flow battery for grid-scale storage

Researchers in the U.S. have repurposed a commonplace chemical used in water treatment facilities to develop an all-liquid, iron-based redox flow battery for large-scale energy storage. Their lab-scale battery exhibited strong cycling stability over one thousand consecutive charging cycles, while maintaining 98.7% of its original capacity.

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Maxeon claims 24.9% efficiency for IBC solar panel

Maxeon said it has achieved a 24.9% efficiency rating for a full-scale Maxeon 7 solar panel using its IBC technology. The US National Renewable Energy Laboratory (NREL) confirmed the result.

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ACWA forces offline Moroccan CSP plant following leak

ACWA Power’s preliminary analysis of a leak in the hot molten salts tank at its 150 MW solar plant in Morocco indicates a forced outage until November this year.

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Panasonic reveals new air-to-water heat pumps

The new products are intended for commercial applications and and multi-dwelling buidlings. They have a size of 20 kW to 30 kW and use R290 as the refrigerant.

Perovskite solar cell with self-assembled organic electron transport layer achieves 21.5% efficiency

Developed by scientists in Saudia Arabia, the device is reportedly the most efficient perovskite solar cell ever reported to date with an organic electron transporting layer. The cell achieved an open-circuit voltage of 1.13 V, a short-circuit current density of 24.7 mA cm2, and a fill factor of 77%

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Quinbrook to build polysilicon factory in Australia

Quinbrook Infrastructure Partners’ plan for a multibillion-dollar polysilicon production plant in Australia has received a major boost, with the Queensland state government clearing the way to fast-track the project.

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Sodium-ion batteries – a viable alternative to lithium?

While lithium ion battery prices are falling again, interest in sodium ion (Na-ion) energy storage has not waned. With a global ramp-up of cell manufacturing capacity under way, it remains unclear whether this promising technology can tip the scales on supply and demand. Marija Maisch reports.

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