1KW=1.36 horsepower
So the fan power can be converted into power.
Most wind turbines in wind farms in general are in the megawatt range. If it is 1 MW, then it is 1000 x 1.36 = 1360 horsepower.
Most domestic wind turbines are in the megawatt range. hundreds of watts and several kilowatts, like 500 W wind turbines, then it's 0.5*1.36=0.68 horsepower
.