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How strong does a large wind need to be to power a generator
Most wind turbines need a minimum wind speed of about 7 to 11 mph (3 to 5 m/s) to start generating electricity. This threshold, called the “cut-in speed,” is the point where the blades begin spinning fast enough to produce usable power.
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Can solar energy generate electricity to blow a fan
Solar-powered fans use photovoltaic cells in a solar panel to convert sunlight into green, renewable energy electricity. The fan's motor uses this electricity to power the fan blades and create air movement.