I guess what I meant by "difficult" is from the algorithmic side of things. Let's suppose that scheduling demand is NP hard. For N of 6 this is trivial. For

I guess what I meant by "difficult" is from the algorithmic side of things. Let's suppose that scheduling demand is NP hard. For N of 6 this is trivial. For N of 100,000 this is a nightmare, so you end up not with ideal demand scheduling but a bunch of heuristics and approximations. I can think of a bunch of ways to handle the honesty problem. If it was just say 6 houses I'd probably wire the whole thing as a star and put a current measurement device on each of the 6 hot wires that all connect at the central location. It's then very easy to tell where power is coming from and going to. Each person could also install their own current measurement device where the power attaches to their in-house system and monitor internally and compare so that way if the central unit gets compromised any individual knows it and can stop participating until it's fixed.