> They might draw today and it has to be available. This is true for non-solar customers too. It may be more true for solar, but unexpectedly high residential

> They might draw today and it has to be available. This is true for non-solar customers too. It may be more true for solar, but unexpectedly high residential loads happen for all kinds of reasons. (A big one is heat on a very cold day, and that tends to be a correlated load.)