Cute plan. I can put solar panels that I own on my roof connected, to cheaper- or equivalently good batteries (or all of this funded by someone with less overheads than SolarCity, maybe someone decentralized?)... Just waiting for the cheaper EV to become available... and then I'm sure there will be a decentralized app that lets me rent out my car. Until then I'd rather invest in a profitable business, those Teslas are expensive!