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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We've already heard about renewable energy systems that use aerial kites to generate electricity via the wind. Well, the Manta system is kind of similar, although it uses an underwater kite that "flies" in tidal or river currents.

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Nova Innovation has announced the installation of the first electric vehicle charge point powered by tidal energy, which is located on the island of Yell in the Shetlands.

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Enegix Energy is moving forward with plans to build a huge clean hydrogen plant on the North-East coast of Brazil. The US$5.4-billion Base One project would transform solar and wind power into more than 600 million kg of green hydrogen annually.

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