GE installs world’s first spiral-welded wind turbine tower

Denver's Keystone Tower Systems says it can cut the cost of wind energy with tech borrowed from pipemaking. It uses spiral welding techniques to roll sheet steel into huge turbine towers on-site, stronger, faster and cheaper than current techniques.

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Silver mirror triples efficiency of perovskite solar cells

Perovskites are one of the most promising new materials for solar cell technology. Now engineers at the University of Rochester have developed a way to more than triple the material’s efficiency by adding a layer of reflective silver underneath it.

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Battery Virtual Power Plant launches to help with electricity grid stability

Smart energy tech developer SolarEdge is inviting thousands of home battery owners to join Britain's first Battery Virtual Power Plant, where stored energy will be used to help stabilize the grid during peak demand events.

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South Australia plans world’s largest electrolyzer and H2 power plant

The state that built the world's first grid-level "big battery" is striking out on an even more ambitious green energy project: the world's biggest hydrogen power station, fed by an electrolysis facility 10 times larger than anything running today.

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Multi-layer “liquid window” tech could help buildings save energy

There are already "smart" windows that can be electronically switched between either letting sunlight through or blocking it. A new multi-layered one, however, can be set to several energy-saving light filtration modes.

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Acid coating converts regular electrolyzers to split seawater

Green hydrogen is going to demand a lot of water for electrolysis – nine liters of pure water for every kilogram of hydrogen. Researchers say they've found a simple way to use seawater in standard electrolyzers, and that's big news for clean energy.

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Scientists propose turning abandoned mines into gravity batteries

Once a mine has been exhausted of its ore, there's really no use for it anymore – it just becomes an abandoned hole in the ground. According to a new study, however, the shafts of such mines could serve in energy-storing gravity batteries.

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World’s new largest wind turbine sweeps 10 football fields per spin

The China State Shipbuilding Corporation (CSSC) is upping the ante on offshore wind, announcing it's building the largest and most powerful wind turbine ever, making a peak 18 megawatts with an enormous 260-m (853-ft) diameter on its three-bladed rotor.

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Minimum two-year setback for TerraPower’s advanced nuclear demonstrator

Russia is the only country that sells the HALEU fuel that some next-generation nuclear plants will rely on, and with sanctions now in place due to the war in Ukraine, TerraPower has now conceded its demo timeline will blow out by at least two years.

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Clever device efficiently splits hydrogen and lithium out of seawater

Chinese researchers say they've demonstrated a seawater electrolyzer that works as efficiently as a commercial freshwater electrolyzer for months on end without corroding itself to death. It also looks like these machines could harvest lithium, too.

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