I'm all for energy efficiency, but it has to save ME money, not cost extra!! I would very much prefer a house with energy efficient updates over one that would have higher energy bills, all else being equal.
I can afford a fairly large retirement home, but will probably get a smaller one in order to use (and pay for) less energy. Energy prices are likely to skyrocket in the coming years, in my opinion, so it makes sense to me to prepare for that.
I am not interested in any type of planned community, if it involves a lot of rules and monthly fees, and petty tyrants (oops, I mean Homeowners' Associations!
) intruding on my peaceful retirement life.