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World’s largest underground hydrogen storage project

Mitsubishi Power Americas and Magnum Development are set to begin construction on a 300 GWh underground storage facility in the US state of Utah. It will consist of two caverns with capacities of 150 GWh, to store hydrogen generated by an adjacent 840 MW hydrogen-capable gas turbine combined cycle power plant.

Rechargeable silicon redox battery for renewable energy storage

Israeli researchers have developed a device that combines a reversible Si anode with halide cathodes and uses hybrid electrolytes to enable cell recharging. In the proposed system configuration, silicon is dissolved during the battery discharge process, and upon charging, elemental silicon is deposited.


Toshiba energises PV-powered hydrogen refuelling station in Japan

The system is reportedly able to refill about eight hydrogen fuel cell vehicles, each in three minutes. It is also able to supply electric power by using hydrogen produced with renewable energy within the station.


New residential lithium-ion battery from China

Chinese manufacturer Bslbatt has unveiled an upgraded version of its residential battery. The device has a storage capacity ranging from 5.12 to 12.8 kWh and is reportedly able to provide steady operation for up to 6,000 charge cycles.

Cooling down solar modules with cotton wicks immersed in water

The novel technique consists of attaching cotton wicks immersed in the water (CWIWs) to the backside photovoltaic module. The water is supplied to cotton wicks from top to bottom by gravity which the scientists said helps the effective absorption of cotton and reduces water consumption.

PV industry needs 12 times more polysilicon production capacity by 2050

New research from the University of New South Wales (UNSW) predicts cumulative polysilicon demand of 46-87 Mt will be required to achieve 63.4 TW of PV installed by 2050.

Start-up unveils solar thermal panel for large-scale applications

The panel has an absorption area of 1.96 m2 and a weight of 27 kg per square metre. According to the manufacturer – Swiss start-up TVP Solar – it may be a real booster for thermal output, by combining it with photovoltaics and heat pumps to provide enhanced output per square meter, in particular for low-temperature applications such as district heating.


Vehicle-integrated photovoltaics for low-speed electric vehicles

Canadian startup Capsolar claims its flexible solar modules can be adapted to any type of low-speed electric vehicle with no extra modification and custom work. The panels have an efficiency of 21.3% and rely on 24%-efficient solar cells provided by US manufacturer SunPower.

New kind of black silicon shows improved light-trapping properties

Scientists in Russia have developed a new wide-band optical absorber called ‘black silicide’ which they claim is more adjusted to match AM-1.5 solar spectrum with theoretically higher photogenerated current density. It could be used for tandem operation in photovoltaic devices.

Portable flexible PV systems for off-grid, residential applications

US startup New Use Energy Solutions has launched a new line of portable PV systems built with a module technology relying on Sunpower’s solar cells. The modules are assembled in the system via a custom vinyl tarp.

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