'top 10 pumped-hydro storage facilities in the US combined could “supply average US electricity needs for just 43 minutes.”'
vox.com/energy-and-env
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So? That's not what they are designed to do. Misleading tweet.
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Why misleading. Just provides calibration on the impedance mismatch between variability handling technologies and scale of variability. Suggests pumped hydro is not enough to smooth out renewables variability.
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Energy Transitions by Vaclav Smil offers a broad survey and deep analysis of this problem space.
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Renewable main system with hydrocarbon backup generators? That's how the preppers do it.


