Any additional info on your tank? Size/inhabitants, etc. I'm in the solar industry (16 years) and have a solid grasp of off-grid but don't have this type of setup on my 150ish gallon tank being it didn't make sense financially. I do have a 10kw grid tied PV array and will have 3 Tesla Powerwalls in the near future. Lots of PG&E PSPS events in my neck of the woods and thankfully some good rebates available. I do appreciate you sharing your setup. Very cool!