One thing that never ceases to amuse me about the world of the power grid is how all of these closely related ideas get their own individual and unique names. Maybe that's just my perspective as an outsider entering the field, or maybe it's a result of the type of technological approach we're using, that lets it all be much more unified, but several times now an initially really opaque and thorny looking problem has turned out to be something that looks just like what we're able to do already, only painted a slightly different color.
So, from atop my mighty 30,000 foot view:
- Demand response = stuff that you turn off in order to save power
- Dispatchable demand = stuff that you turn on in order to burn power
- Distributed generation = stuff that you turn on in order to make power
Dealing with potential phase shifting on the other hand... that's still a daunting idea for me, and one that I'm glad we don't have to deal with quite yet, though I've got a few ideas now...