Have done the math and it is practical.
Older son is off-grid
Daughter has 6 to 7 kW and gets $50 and more back each month from El Paso Electric (one of the few power companies that encourages solar) even in heat of summer (Las Cruces, NM)
Brother-in-law has around 4 kW in Albuquerque.
Younger son has no solar since his house is entirely shaded with older trees.
We have been off-grid (land power) and generator for two years except for one instance.
Do the math. It is a real act and not merely a meme. You could put 750 to 1000 W on a small TT.
Reed and Elaine