Selling energy back isn't as efficient as it sounds. Transmission losses are a major factor for delivering power. In a star topology, any power you generate mus

Selling energy back isn't as efficient as it sounds. Transmission losses are a major factor for delivering power. In a star topology, any power you generate must go back to a local base station before being delivered to your neighbour, at minimum doubling the transit distance. So, of course, the next step is (to my point): Let's rely on a mesh network to deliver power locally and directly. Sure, until one of your batteries has an issue or its a rainy day and the batteries are depleted. Suddenly your neighbour needs to source power from somewhere else. That somewhere else could be other neighbours, who are, due to local weather conditions, experiencing the same issues. Okay, let's go back to the grid. Now this weather is affecting multiple locations at the same time, and the grid itself is under-provisioned since it was reliant on these local sources of power. If the grid has sufficient capacity to deal with this failure mode, then it has sufficient capacity to be the regular, default power source. Power generation and delivery are hard problems that require big thinking. Wishing it were simple (oh just do this!) doesn't make it so.