Opened in 1986, the Caracas Pumped Storage facility is like a water-based rollercoaster for electrons. By day, it feeds Venezuela’s capital with 240 MW of power. By night? It secretly pumps water back uphill using surplus electricity.
[pdf] Mechanical brakes use callipers and discs to create friction and slow a rotor’s motion, designed to withstand the high torque of turbines and harsh conditions. By braking, the blades slow down, keeping the turbine rotating at a safe speed even in fast winds without expelling too much energy.
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