3 hp = 2.23709961 kilowatts. 95A*12V=1140W peak (probably on a 65% duty cycle.) Typical fan draw is closer to 114 watts than 1140.Thanks guys, I agree that it doesnt matter how you do it, electric or mechanical if you need 3 hp to move the right amount of air you need 3 hp to move that air either 3 hp off the crank or 3 off the batteries (through the alternator) its all the same. Something that I remember from school. Plus i dont need more HPs got enough for what Im doing.