This Is How Water Becomes a Huge Battery

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How can solar and wind power be saved for when the electricity is needed? An old technology could be the solution – with several large-scale projects underway around the world. – It's simply fantastic, claims Professor Andrew Blakers.

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Factuality

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How can solar and wind power be saved for when electricity is needed? An old technology could be the solution – with several large-scale projects underway around the world. It is simply fantastic, claims Professor Andrew Blakers. There is a feverish activity in the Norwegian high mountains. Here, Skanska is building kilometers of tunnels. The idea is to pump water up to the high-altitude mountain lake Illvatn in the summer when the price of elec…