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Old 09-09-2017, 10:45 PM   #314 (permalink)
NeilBlanchard
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Quote:
Originally Posted by Xist View Post
What about the guys that move an electric train up a mountain and then bring it back down to regenerate? How expensive and efficient is that?

I imagine those two have a strong correlation.
I hear it is relatively cheap, and it is quite efficient. Any weight that changes height would work. Pumped hydro is similar - these can be underground to surface.
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