I have the tiger power 10kw my tractor at the pto is 21hp and it runs the gen set with ease. My shanty is a 2 story farm house w/ apartment on one side where my farther lives. Have a 4 zone hot water, 3/4 water pump, 3 refig,1 upright freezer, arc light, all lights in the home plus apartment, 2 a/c units,and the gen is mounted in my garage that is 36x48x12h has 23 8ft fluorescent lights, 6hp air compresser, mig weld 110, 2post car lift. The air compressor will make the tractor blow the black smoke for a bit till it starts then all is fine the well pump will only make it grunt very little. The gen has the L E D lights that I really like take the rpms up till the green light is lit and thats it. My pto rpms for 540 is 2400 the green light comes on the gen at 2100 on my tach. I'm very satisfied with the tiger power and I researched it for over a yr before I purchased it.
Just my 2 cents from my personal experiences. Hope this helps with any decisions your going to make.