If y’all think windmills are cool, think about a helicopter. How much gas is needed to spin the thing. Then you think backwards: how fast the windmill has to spin (how slow but big) to match the gas engine. mmmmmk?
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But energy can’t be generated, only transferred.
It's not 'generating' energy, it's transferring the energy from the wind into electrical energy. Not very efficiently, and not as efficiently as fossil fuels do, but that's what is happening in a wind turbine. It just transfers wind energy into electrical energy, which can be distributed and/or stored.
And?