12-20kW PTO-driven 3 point generator for tractor

[Rancher]

Thank you. There's a lot of good information in your post. My tractor is a diesel Kubota L2800 and the specs look like this:

Engine (gross): 30.0 hp [22.4 kW]
Engine (net): 28.6 hp [21.3 kW]
PTO (claimed): 25 hp [18.6 kW] (gear late)
24 hp [17.9 kW] (gear early)

Mine is about a 2005 model (can't remember at the moment). So, the power available at the PTO is within my needs, but not at the upper end. I probably won't use it at the top end very often, since it's really not cost effective as a whole-house generator. But, it would suffice to keep the electric heat and refrigeration going in the winter for a day or two, if the power goes out. We've lost power for a week here, before. But, it's only happened once.

Thanks for the information on generator heads. I have an electrical engineering background in my past, but as I constantly have to tell friends and neighbors, that doesn't make me an electrician by any stretch of the imagination. Power generation is NOT my forte'. It looks like I could have the head I need for $1500-2000 new on eBay. So, that's not in the cards for the moment. But, it does give me an idea of how high to go at some of our local farm auctions. We have one that I go to, that is pretty large, so it might turn up there. Not long ago, I scored about 600 dollars worth of equipment for the staggeringly low price of $5. Then, will come the gearbox. That might be a little more difficult. Thanks, again.

ETA: Just saw a new one (15000 W) from Harbor Freight for $1300. Not really a fan of Harbor Freight for expensive things (and they aren't conservative on their specs... LOL). But, it is food for thought.