Energy Storage

Scientists in South Korea have worked with graphene and carbon nanotubes to develop a working lithium-ion battery that can be stretched by up to 50% without damage to any of the components. According to the scientists, the battery represents a significant step in the development of wearable or body-implantable electronic devices.

The unfolding effects of the Covid-19 crisis, and fears of a possible second wave, have split analysts trying to guess how the unsubsidized renewables market will emerge as slumping demand continued to distort power markets. pv magazine rounds up the week’s coronavirus developments.

Matt Harper, chief commercial officer of newly-merged British-Canadian vanadium redox flow battery business Invinity Energy Systems has spoken to pv magazine about the VS3-022 Battery Unit it is marketing for grid scale solar-plus-storage projects and why it may be a better bet than lithium-ion.

The International Seabed Authority will change regulations for deep-sea mining this year. The ocean floor is covered with potato-sized pebbles containing high levels of cobalt, manganese, nickel and copper – materials that could soon be in short supply as the energy transition progresses.

The coronavirus epidemic continues to batter the global economy, including the solar industry, but falling demand during lockdowns has brought negative energy prices as well as helping drive record solar generation, amid less-polluted skies.

Scientists in the United States have used microwaves to convert ubiquitous plastic packaging material polyethylene terephthalate into a battery electrode component. The researchers say anodes based on the material could be suitable for both lithium-ion and sodium-ion devices.

The project was selected in a tender for storage deployment in non mainland grid interconnected areas that was finalized by France’s Energy Regulatory Commission in 2016.

Perhaps it is not surprising a report co-produced by Europe’s solar industry places PV at the heart of a zero-carbon, mid-century energy system on the continent. However, the study does flesh out two out of three scenarios in which becoming carbon-neutral by 2050, or even 2040, could be possible.

The PV production equipment manufacturer said its employees will return to work at to two locations in Germany as planned after the Easter break, despite concerns about the Covid-19 pandemic.

With its sonnenVPP, German battery company Sonnen wants to improve the efficiency of virtual power plants which it says can offer primary balancing energy from houses with solar and storage and can operate up to 90% more cost-effectively.