I do think that in the long run, power cells of some sort with some degree of high energy storage/capacity are going to be the optimal alternative to a connective power grid. (Unless you like the idea of running plasma conduits or something under the streets)

But this shit is far too soon and far too useless to be remotely viable. And I don't trust the WEF to not come up with ideas that aren't intended to solely serve the interests of the elite.