Lots of boxes. 😉 The ones to the right of the electrical panels are for the conduit feeds from below.

I also added a pull/wire box underneath of each panel in the house (9 of them) so I can install current monitoring gear on every circuit.

I am planning on using 9 Greeneye ECM-1220s, as each one can do 32 channels of CT clamps.
http://www.brultech.com/greeneye/

I have an ECM-1220 right now and it works well and is easy to integrate into other systems.

I am curious to see what other current monitoring solutions people are using.