It isn't meant to store energy. It simply transforms the wind energy into other forms of useful energy. Of course, it may briefly have some rotational (i.e. kinetic) energy stored, but that won't last long.
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A windmill typically does not store energy itself. Instead, the energy generated by a windmill is converted into electricity and either used directly or stored in batteries or the grid for later use. The stored energy can be used when there is no wind to continue generating electricity.
When the air is still, a windmill could still possess potential energy stored in its structure, ready to be converted into kinetic energy once the wind starts blowing. Additionally, if the windmill is connected to a generator, it could also store electrical energy generated from previous wind events.
In a windmill, the kinetic energy of the wind is transformed into mechanical energy by the rotating blades. This mechanical energy is then converted into electrical energy by a generator inside the windmill.
A windmill undergoes a transformation of energy from kinetic energy in the wind to mechanical energy in the motion of its blades. This mechanical energy is then converted into electrical energy through a generator connected to the windmill.
The kinetic energy of the moving air (wind) is converted into mechanical energy, which then turns the blades of a windmill. This mechanical energy is further converted into electrical energy through a generator connected to the windmill.
A windmill converts wind energy into mechanical energy by turning the blades. The mechanical energy is then converted into electrical energy by a generator located inside the windmill.