As best as I can tell, I can produce 1,850 watts continuous-- 24 hrs/day when the water is flowing. Might seem small compared to solar standards, but when you figure it works 24 hrs/day it catches up fast. I will add an inverter, but that is *way* down the road.
I have a well pump house 400' away. It has 220V in it. I could setup a relay so the pump gets electric when needed, and otherwise, the aerator could run.
What kind of air line is used? I would start by running it on the surface, but is it OK to bury it as well?