Renewable Energy
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Sweden's CorPower has announced "breakthrough" results from Atlantic ocean testing of its full-scale floating generators, which cleverly time their motions to amplify smaller waves while protecting themselves against dangerous storm conditions.
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A potentially game-changing and largely unexplored energy jackpot lies beneath the ocean floor, according to a whitepaper from geoscience tech consultancy CGG. Unique conditions under the sea bed promise cheaper and more accessible geothermal power.
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Minesto's fully operational Dragon 12 looks like some sort of futuristic military drone – but it behaves remarkably like a kite underwater. It uses lift generated by tidal flows to fly patterns faster than the currents, harvesting renewable energy.
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Wave energy remains one of the least-exploited clean energy options, with huge potential as part of a green energy grid. Finland's AW Energy is preparing to field a contender at scale – the Waveroller – which sits on the sea bed generating up to 1 MW.
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Power demand spikes in the early morning and later evening, when solar arrays can't help. But researchers in Scotland say orbital launch costs are getting so cheap that giant space-based reflectors could soon be a viable way to power these timeslots.
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Researchers in Jordan and Qatar have come up with a remarkable design for a "twin technology solar system" capable of generating clean energy 24/7. This double-action design promises more than twice as much energy as a standard solar updraft tower.
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A Dutch startup spun out of the Delft University of Technology has launched the Kitepower Hawk, a wind energy storage solution that's designed to replace diesel generators for small island communities, on construction sites or in agriculture.
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With most of Arizona in a state of moderate to extreme drought, the Gila River Indian Community and the US Army Corps of Engineers have signed a deal to begin a solar-over-canal project designed to cut down evaporation and boost solar efficiency.
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Gulfstream Aerospace has flown into history as one of its G600 aircraft completed the world's first transatlantic flight burning 100% Sustainable Aviation Fuel (SAF) from Savannah, Georgia, to Farnborough, England, in six hours and 56 minutes.
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In an average day, tropical oceans absorb about 278 petawatt-hours of solar energy. Harvesting just 1/4000th of that energy would supply the entire world's daily electricity – and ocean thermal energy conversion provides a possible method.
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It looks nothing like a typical "fan on a stick" wind turbine, but this oval track with evenly spaced wing blades could be an enormously disruptive addition to the renewable energy mix, since it slashes the cost of wind power to unprecedented lows.
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A wildly innovative turbine that could halve the cost of offshore wind is set to go into testing in Norway. The 19-m (62-ft), 30-kW, contra-rotating vertical-axis turbine is a prototype of a design that could scale to unprecedented size and power.
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