25kw would be just big enough to power my whole house including the central A/C. He has a 250 gallon buried propane tank and is putting in another 500 gallon one. Not really sure how many days of power that gives him. Once it is installed it switches on automatically and does a test start once a week. Of course none of this is doing him again good since he is still waiting for permits, storage tanks, and all that good stuff while I'm enjoying my far less expensive portable generator.
I have been thinking of charging for hot showers. Maybe one gallon of fuel per shower or something.
Not sure if solar power is such a good idea in a place where clay roof tiles get broken and sucked right off of one's roof.
And I have a real fireplace too. One of the very few houses around to have one. Sometimes I turn the A/C down real low and light a fire in it. lol