100A is a LOT of power.... oh, wait, you are USA, so on 120V?
Okay, so that's half of what we get in the UK for domestic premises, we used to get 60A/240V, but now get 100A/240V.
Still, 100A * 120V = 12Kw. A small aircon unit draws about 2.5kw to 3kw. If had 2 of them running, you would...