Wind blows. Water falls. But for the first time, one is now powering the other. Engineers in Germany are storing water for hydroelectricity inside wind turbines allowing the towers act like massive batteries once the wind stops blowing. It’s the first major example of the two technologies being physically integrated to supply reliable renewable energy. The four-turbine project, announced by General Electric this month, stores energy from the spinning blades by pumping water about 100…
Germany is building the world’s first wind turbines with built-in hydroelectric batteries
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