Cool - I'm sharing your videos with a local (We're in NC) electrician.  I think he's having a hard time believing our power needs, and what we're doing - so this is good stuff :-)

Quick question - what was the reason you did the large (intake, I assume) vent across the top where you angled out the side of the conex - instead of just doing vent/fan holes like I've seen others do?

I imagine this is much better for ventilation, but I'm worried about security on such a large opening.