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Storage

Israeli startup develops PV-driven cooling system based on compressed air

Storage Drop has secured a grant from the European Union to develop its PV-driven cooling system technology for low temperature environments. The system is based on compressed air energy storage technology and a hydraulic isothermal compressor with a water pump that compresses the air in an isothermal process.

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Hybridizing thermoelectric generators with photovoltaic ground-source heat pumps

Researchers in South Korea have analyzed the feasibility of using thermoelectric generators in combination with residential solar-assisted ground-source heat pumps and have found that the thermoelectric devices may act as a suitable power source for data loggers and other sensors in a building system.

PV-driven water splitting system with solar-to-hydrogen efficiency of 9.8%

Scientists in Korea have built a green hydrogen system prototype that embeds a PV generation unit based on photoanodes made of perosvksite solar cells. The device purportedly achieved a solar-to-hydrogen efficiency of 9.8% for a device with a size of 0.25 cm2, and 8.5% for a system measuring 123.2 cm2.

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Researchers identify path to fast-charging lithium-sulfur batteries

Australian researchers have designed a new catalyst that has the potential to deliver a new generation of lithium-sulfur batteries that can be charged in less than five minutes, instead of several hours.

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TSUN debuts DC-coupled 1,024 Wh battery

The Chinese manufacturer said its new residential storage system is an ideal solution for balcony PV system. The battery features a maximum input power of 1,200 W and a maximum output power of 800 W.

Evaluating the profitability of vanadium flow batteries

Researchers in Italy have estimated the profitability of future vanadium redox flow batteries based on real device and market parameters and found that market evolutions are heading to much more competitive systems, with capital costs down to €260/kWh at a storage duration of 10 hours.

US startup develops air-source steam heat pump for industrial use

Colorado-based AtmosZero has closed a Series A funding round that will help it accelerate the commercialization of its Boiler 2.0 technology. The air-sourced heat pump generates steam for industrial use and can be combined with PV generation and storage.

Tata Power commissions India’s largest solar+battery storage project

Tata Power Solar Systems has commissioned a 100 MW solar PV plant coupled with a 120 MWh utility-scale battery energy storage system (BESS) in the Indian state of Chhattisgarh. The BESS for the project was supplied by Tata AutoComp Systems.

Aira launches new heat pumps for residential buildings

The new heat pumps use propane (R290) as the refrigerant and have a seasonal coefficient of performance of 4.7. The maximum temperature outlet is 70 C and the maximum cooling power spans from 8 kW to 13 kW.

Hurricane-resistant hybrid solar plant inaugurated on Antigua and Barbuda

A hybrid solar and battery project in Antigua and Barbuda, funded by the $50 million UAE-Caribbean Renewable Energy Fund, features 720 kWp of solar panels and an 863 kWh battery, designed to withstand strong winds and fully power the island nation during daylight hours.

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