B) Only 60% of gas produced energy of electricity which was sent to the power grid and the remaining energy was lost in the form of heat due to the blades having to overcome air resistance and also the friction of the turbines. C) Wind energy is less efficient (even when running at their optimum wind speed) because There's friction between all the moving parts, the generator or alternator aren't 100% efficient, and the energy is lost at the rotor blade friction and drag, gearbox losses, generator…
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