The current market/use-case for "Smart Grid" technologies is in replacing the various legacy control system interfaces within Plants with a single (IP-based) one for the immediate goal of reducing opex through synergies within the Plant and to the edges of that Plant operator's owned infrastructures. The next step, obviously the hardest part, is establishing and implementing IP-based standards that facilitate the realtime brokering of inputs/outputs between different, potentially competing operators. This is the same issue as the competing/proprietary residential IoT standards that have been holding back the "Smart Home". This stuff only makes economic sense for vertically-integrated players (like Duke Energy) that benefit from the opex reduction. Any sort of "value-added" capabilities are only a bonus to that opex reduction and aren't enough of an ROI by themselves.