Sounds like a very cool set up. Adding a power wall (or batteries and gear to switch them) will make a huge difference.

My roof doesn't qualify for government or power system help so I'm essentially screwed, blued and tattooed. We do have a brand new 'cost sharing' program from the gov which starts Thursday for most people.

I'm really looking forward to your production/cost reduction report. I think 600 kw with a power wall would darn near take me to zero from the utility. I think it would take 900 to be sure but...