by >a small installation where your generation does not exceed your usage I meant explicitly a small system where the moment to moment generation generally di

by >a small installation where your generation does not exceed your usage I meant explicitly a small system where the moment to moment generation generally did not exceed moment to moment usage. >the way things are structured in your country In the US things are structured per utility which varies widely by state, city, or even neighborhood and they have many different kinds of rules.