German engineers are storing water for hydroelectricity inside wind turbines allowing the towers to act like massive batteries once the wind stops blowing. This is being reported as the first major example of the two technologies being physically integrated to supply reliable renewable energy.

General Electric announced the four-turbine project earlier this month. As reported by Quartz online, it can store energy from the spinning blades by pumping water about 30m up inside the turbine struct...

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