Well I couldn't get a hold of a tesla power wall so I bought 4 Trojan re batteries made for solar $1600. a wonderful learning experience . clearly batteries are the future with Solar if all homes have batteries and most Will soon, at least in the form of electric car then there will be very little transmission line infrastructure to build out maybe only to tear down. I can see a future were appliances are all sold with 24 hours worth of battery built in, the TV the refrigerator have a battery enough to run them through the night from the solar they store during the day and the grid will basically be a backup generator The only way power goes out at my house as if the grid goes down and it's cloudy for four days and that's because I don't own a generator
Batteries and solar are awesome!