Re: Interesting idea
Yes. Yours is ultimately the answer we're looking for, but, perhaps not all that surprisingly, it's deeply unpopular with the encumbent energy suppliers (the "Big Six").
They are, for instance, oddly challenged when it comes to measuring how much power a micro-renewable system in a domestic installation actually exports to the grid.
Another handy method they use is to worry about the capacity of local transformers and how much the local voltage will rise if more power is generated in remote locations.