Regardless of the existing or emerging technologies the embedded...

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    Regardless of the existing or emerging technologies the embedded energy in getting some of these things working is usually ignored, eg EVs. This is no more evident than when these old industrial sites need rehabilitation, at a cost of squillons of dollars.
    Hydro power that was installed in Tasmania in the 1970s is still working and now even supplying power to the national energy grid. Technology will come and go but water will never go out of fashion, and once they can harvest the hydrogen out of it efficiently, and on demand, (which they will) energy problems in many applications will be greatly reduced, if not eliminated.
 
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