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Russia

High-voltage sodium-ion batteries with up to 15% higher energy density

Researchers in Russia have developed a new sodium-vanadium phosphate fluoride powder. It has a particular crystal structure that provides superior energy storage capacity in the battery cathode.

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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.

Ripple effects of Russia-Ukraine crisis on renewables

The war in Ukraine has acted as a brutal wake-up call for governments to act and reduce their dependence on Russian fossil fuels. Many have pledged to hasten project timelines for renewables, but there are mixed reports about impacts on investor confidence and projects under development in Ukraine’s neighboring countries. Marija Maisch reports.

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Ukraine invasion reshaping discussion about energy, pricing, renewables

Indra Overland, the head of the Center for Energy Research at the Norwegian Institute for International Affairs, tells pv magazine how the Ukraine war is irreversibly changing the global energy landscape, making massive renewables deployment a certainty. But labor issues, equipment shortages, and reliance on Chinese manufacturing remain obstacles.

Could Russia’s actions in Ukraine accelerate renewables investment?

Given the goings-on in the world this last quarter, Mike Jefferies, Investment Manager at Octopus Investments Australia, takes a look at the current macroeconomic environment, how this is tied to energy markets, the impacts Russia’s invasion of Ukraine has had on that energy market, what this could mean for Australia and how renewables could help address these issues.

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The trillions spent by G20 nations on fossil fuels from 2015 to 2019 could have paid for more than 4 TW of solar

Polluting energy sources received more than $3 trillion from the EU and 19 of the world’s largest national economies over that four-year period, despite G20 members having pledged to phase-out fossil fuel subsidy and address climate change back in 2009.

Solar catamaran 100% powered by heterojunction modules headed for Australia

The 100% solar-powered boat will be tested in a 9,000 nautical mile expedition from Chile to Australia that is set to start in December. The vessel is equipped with an 11 kW PV system built with heterojunction modules provided by Russian manufacturer Hevel Solar.

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Green hydrogen supply chain concerns

With South Africa holding 63,000 of the world’s estimated 69,000 metric tons of platinum reserves – according to the Statista.com website – and Russia and Zimbabwe a further 5,100 between them, the European Commission has cited the metal as an example of a potential supply chain bottleneck that could handicap its grand plans for renewables-powered hydrogen production.

Holographic film to protect solar panels from overheating

Russian scientists have developed a holographic film based on prismatic concentrators that reduces the operating temperature of solar panels, including thermal-photovoltaic devices. They claim the patented, low-cost technique can even improve PV module efficiency in cloudy weather.

Novel nanomaterial to replace graphite in lithium-ion batteries

Porous nanostructured microspheres made of copper, iron, and iron oxide were used by an international research team as negative anode material in lithium-ion batteries. The new technique is claimed to provide three times more capacity than batteries based on graphite anodes.

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