Individual solar storage seems like a neat idea, but limited to single-family houses. Major piece of feedback SolarCity received after the first wave of Tesla Powerwall installations was how customers hated giving up space in their garage <a href="http:&#x2F;&#x2F;www.greentechmedia.com&#x2F;articles&#x2F;read&#x2F;Lesson-Learned-From-SolarCitys-First-Home-Energy-Storage-Installs" rel="nofollow">http:&#x2F;&#x2F;www.greentechmedia.com&#x2F;articles&#x2F;read&#x2F;Lesson-Learned-F...</a><p>So with SolarCity at least, the focus seems to be on community storage, where the grid of replaceable batteries is shared by neighbors on the same cul-de-sac&#x2F;block&#x2F;street&#x2F;community&#x2F;town. Long-term this is also insurance against net metering going away (which utilities will probably lobby through successfully at some point). Via community storage neighbors can start selling to neighbors.<p>However, someone still needs to maintain the neighborhood storage system, manage billing for produced&#x2F;consumed kWh, run the actual wires to&#x2F;fro storage, at which point we&#x27;ve re-invented the utility company, just at much smaller scale.