A common criticism of a total transition to wind, water and solar power is that the US electrical grid can’t affordably store enough standby electricity to keep the system stable. Now a researcher proposes an underground solution to that problem.
Read more here:: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/solar_energy/~3/kq2xDvoY280/151124112138.htm
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