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Weekend Read: Light weight

When it comes to gravity batteries, pumped-hydro storage is the gold standard, but its cost and topography-specific limitations are driving innovations ranging from freight-train braking to super-dense liquids. We consider whether any of the new technologies can punch above their weight.

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The Hydrogen Stream: Europe introduces new green hydrogen rules

The European Commission has presented the final version of its new rules for green hydrogen, with looser requirements to qualify hydrogen as “green.”

The Hydrogen Stream: Bismuth-based catalyst for efficient OER in electrolysis

South Korean researchers have reported higher performance with a newly proposed BM/BiFeOxHy electrocatalyst for oxygen evolution reaction (OER), due to higher lattice vacancies and the amorphous structure. Institutions in the EU, the UK, and Canada, meanwhile, have announced new plans to provide funds for hydrogen projects.

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A true beginning – how the IRA persuaded us to invest in the US

The Inflation Reduction Act (IRA) has opened a new door for US solar manufacturers, as one of the executives behind a US-Jordanian project to bring PV production to the US explains.

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Weekend read: Navigating hailstorms

Owners and insurers suffered record hail losses in 2022. John Sedgwick, president of engineering advisory VDE Americas, provides some pro tips for mitigating such risks.

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Big solar already pulling its weight on emission reduction – especially in Chile

Following a disappointing COP27 climate change summit in November, solar industry veteran Philip Wolfe reviews the contribution utility-scale PV is starting to make to emissions reduction.

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Forced labor act is last barrier to US solar rebound, claims executive

Texas-based FTC Solar said it expects a “significant rebound” in its business in the final three months of this year, if it can secure sufficient supplies of PV panels.

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The Hydrogen Stream: Hyundai to export heavy-duty hydrogen trucks to Germany

Seven German companies have agreed to put 27 Hyundai heavy-duty fuel cell trucks into fleet service in the coming months. American Airlines has revealed an investment in ZeroAvia, while New Fortress Energy has invested in a 120 MW industrial-scale plant in Texas.

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Self-healing perovskites can withstand fierce cosmic radiation

The development of a set of testing protocols for perovskite solar cells intended for use outside Earth’s atmosphere could lead to the devices being installed permanently, and even manufactured, on the moon.

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DNV puts different module formats to the test

Energy consultancy DNV was tasked by module manufacturing giant Longi Solar with comparing the balance of systems costs between modules utilizing 182mm and 210mm wafers, based on a 3.7 MW project in three different layouts. The results reveal a slim cost advantage for the smaller of the two, based on both fixed tilt and tracker systems.

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