Renewable energy storage is literally setting the world on fire. When giant lithium-ion batteries aren’t exploding in toxic balls of flame, their limited capacity means that they add a trivial occasional trickle of electricity to the grid; and do so at an astronomical cost.
The wind and solar acolyte would have us believe that if we throw another few billion dollars at Elon Musk, we will quickly overcome the inherent intermittency of wind and solar.
The other line being spun is that wind power can be ‘stored’ for future use in pumped hydro systems. Like big batteries, pumped hydro involves converting one form of energy to another and reconverting it to electricity for ultimate use, with very substantial energy losses along the way.
But physics, economics, and even routine mathematics were never the strongest points of the wind and solar cult.
Michael O’Ceirin, on the other hand, always…
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Utopia, you are standing in it! 
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