Australia has a lot of sun and desert space, positioning the country well to continue being an energy exporter in the net zero era. But the renewable assets it'll need to build to get there are absolutely epic in scale, according to a new report.

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Australian researchers have demonstrated a way to electrolyze hydrogen straight out of the air, anywhere on Earth. The Direct Air Electrolyzer absorbs and converts atmospheric moisture – even down to a "bone-dry" 4% humidity – without fresh water.

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CalWave has been working on its xWave clean power technology for many years now, and has announced the successful conclusion of an extended open-ocean test off the coast of San Diego, in which the device demonstrated over 99% system uptime.

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We interviewed the core team at Norway's World Wide Wind to learn more about its floating, tilting, contra-rotating, double turbine design, which it says can unlock unprecedented scale, power and density to radically lower the cost of offshore wind.

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“We don’t need any energy input, and it bubbles hydrogen like crazy. I’ve never seen anything like it,” said UCSC Professor Scott Oliver, describing a new aluminum-gallium nanoparticle powder that generates H2 when placed in water – even seawater.

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Norway's World Wide Wind has a radically different take on offshore wind power. These floating, vertical-axis wind turbines feature two sets of blades, tuned to contra-rotate – and they promise more than double the output of today's biggest turbines.

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Aluminum has an energy density more than 50 times higher than lithium ion, if you treat it as an energy storage medium in a clean redox cycle system. Swiss scientists are developing the technology as a renewable energy stash for the European winter.

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Leaves are impressive machines, converting sunlight, carbon dioxide and water into energy. Cambridge scientists have now created artificial leaves that can float on water, tapping into sunlight above it and water below to efficiently produce fuels.

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Some fusion projects aim to create hundred-million degree working temperatures in magnetically confined plasma. The CEO of TAE Technologies tells us his team's aiming for 10 times that temperature, targeting cheaper, easier and safer boron fuel.

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Illinois Tech spinoff Influit Energy says it's coming out of stealth mode to commercialize a rechargeable electrofuel – a non-flammable, fast-refuelling liquid flow battery that already carries 23% more energy than lithium batteries, at half the cost.

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