I watched your video! Love to see what you've done. Are you turning the miners on and off manually?

The low voltage is definitely a challenge. My furthest wire run is 45ft and I had to spend quite a bit on wire that could handle the runs. Thankfully it's a one time cost. I'm still gathering data to see what my efficiency numbers will be, but Dirty says he's achieved as low as 16w/Th on a j pro. Those power supplies do eat up some watts.

I don't think that direct dc is the best solution for all applications, but it is pretty cool to see the miner tuning it's power draw to what the panels are producing in real time.