No solar yet but I got one of these in link below to run off my 37hp Yanmar diesel tractor. The Yanmar has a 4 speed PTO that I run just past idle in 3rd gear to get 540 rpm at the PTO.
I made a cable to go from the generator to my dryer outlet which reverse feeds both sides of the panel with the main breaker shut off to isolate it from the grid.
It will run the well pump as needed for months on 5 gallons of diesel, everything else is just luxury