15000 watts divided by 746 watts per Horsepower is around 20 HP at the pto to run the gen set, would this be correct? Or do you need a little more for spikes in load? Just wondering what the rating are on those as the little tractor I have only has 21 or 22 pto HP if I remember correctly.
A tractors throttle IS governed! Set the throttle under an average load and the tractors governor takes care of the spikes...I'd be concerned about getting a consistent 60Hz cycle out of a pto generator powering circuits in a house due to varying load, since the tractor throttle isn't governed.