You'll be hearing a lot more about ammonia as a clean fuel option in the race to zero carbon by 2050. In particular, it looks like a strong option for long-haul ships and trucks. So what is it, how is it made, and how does it shape up as green fuel?

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Although there are now a number of devices that generate electricity via movement, most of them only work in dry environments. A new one, however, also works underwater – meaning it could be used in implants, or wearables that get exposed to sweat.

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Leveraging salt could help us avoid much of the cost and difficulty in sourcing scarcer lithium, and Chinese giant CATL is looking to lead the charge by launching its first commercial sodium-ion battery.

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Following the official launch of "the world's most powerful tidal turbine" in April, Orbital Marine Power has announced that the O2 has started grid-connected power generation at the European Marine Energy Centre in Orkney.

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Boston's Form Energy says its iron-air batteries store up to 100 hours' worth of energy at a tenth the cost of a lithium battery farm. They could make a huge contribution to long-term storage as the world makes its transition toward renewable energy.

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According to local media, the Chinese government intends to finish building a prototype molten salt nuclear reactor in the city of Wuwei before the end of year, with plans to establish a number of larger-scale plants in similar settings thereafter.

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To maximize the exposure of wind turbines, blades are placed atop tall towers on the crests of hills or miles off shore. But a new study has shown how turbines behind hills could actually produce higher amounts of energy than those out in the open.

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Maxeon Solar Technologies reckons that it's come up with a way to install PV panels on the roofs of buildings that may not be able to support conventional setups, creating frameless, thin and lightweight panels that can be adhered directly to a roof.

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Australian company Graphene Manufacturing Group has announced exciting performance test results for a new type of aluminum-ion battery that can charge over 10X faster than today's lithium-ion units, while lasting much longer and needing no cooling.

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Scientists in Sweden have applied some creative thinking to energy storage and building materials, demonstrating a novel type of cement-based battery that could see large structures constructed from functional concrete.

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