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Producing fuels from 1,500 degrees of solar heat: world’s first plant opens in Germany
(www.thechemicalengineer.com)
Everything about energy production and storage.
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trains are actually one of the examples where you can get away with lower energy dense fuels, like methanol, ammonia or even compressed hydrogen. sure the range will go down, but for many connections this will not matter that much because it will still be possible to go 1000km with one tank if needed.