In theory nothing. Wind is just the flow of air from high pressure to low, which itself is caused by heating from sunlight. If uncollected, the kinetic energy of the wind would eventually be lost as heat to friction between air molecules.
In theory nothing. Wind is just the flow of air from high pressure to low, which itself is caused by heating from sunlight. If uncollected, the kinetic energy of the wind would eventually be lost as heat to friction between air molecules.