The savings I get on my electric bill is nice, it I make way more money selling the renewable energy credits (SRECs). I use a company in CA that monitors it for me and sells my credits in the market when the price is high. I've been getting about $350 per credit (it used to be over $500) and usually make between around $2500 to $3k a year from it. My system is pretty small though. It's cool to get a direct deposit for hundreds of dollars 4 times a year for doing nothing. I've tried to buy Tesla powerwall packs. They are a fortune. It's also my understanding, as of the last time I checked, that Tesla won't sell Power walls by themselves...you can only buy them as part of a whole system. Not sure if that is still a thing though. Sent from my Pixel 3 XL using Tapatalk