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Energy Storage

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.

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.

Endesa switches on 1.1 MW/ 5.5 MWh redox flow battery in Spain

Spanish utility Endesa has activated a 1.1 MW/5.5 MWh redox flow battery in Spain. It says it is the vanadium redox flow storage system connected to a PV plant in Europe. It is situated near Mallorca, in the Balearic Islands.

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Construction begins on 2 GWh of storage in Australia

Western Australian government-owned utility Synergy has commenced construction of its third grid-scale battery as the state government looks to ramp up energy storage capacity to support its planned transition from coal-fired power generation to renewables.

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.

Indian state tenders 1 GW of pumped storage, 5 GW of solar power

Maharashtra State Electricity Distribution Co. Ltd (MSEDCL) has started accepting bids to provide 1,000 MW/8,000 MWh of grid-connected energy storage capacity from pumped hydro storage throughout India.

Weekend Read: Hanging in the balance

Battery storage revenues in Britain are well below historic highs but an appetite for storage capacity remains. Electricity system-operator modernization, increased competition, and new opportunities could all shape the future of British battery energy storage systems (BESS’).

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The Hydrogen Stream: DNV launches hydrogen blending studies in North America

DNV has started working on blending feasibility studies in the Canadian province of British Columbia, while the US Department of Energy has announced $750 million in funding for 52 hydrogen projects across 24 states.

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Bulgaria launches renewables-plus-storage tenders

Bulgarian businesses can apply for funding under two new tenders that aim to facilitate 1,425 MW of renewable energy generation capacity coupled with 350 MW of energy storage. Funding support is only offered for the storage component.

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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.

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