The idea is that the Critical panel would supply essential items like the well, refrigerator, microwave and some lighting so these circuits could be backed-up during a power outage. All of the heavy loads are on the Main panel which would not need to be backed up.
Since the TED energy monitor was hooked up to the Main panel, I had to estimate how much power was being used by the critical circuits. To determine the minimum size for the solar panles and battery system I needed more accurate info so I installed a second TED MTU at the end of June.
Starting this month I'll be able to collect good information on the critical circuits.
One embarrassing note... when I was installing the new TED MTU I noticed that the well is being monitored with a 60 amp sensor but I had it configured as a 20. Consequently, the system has been reporting only one third of the actual power consumed by the well. The system is correctly configured now so the data will be correct starting this month.