They're (Apple) rather lucky that their user base vehemently upgrades whenever possible.
I've iPhone user I've ever met outside tech circles avoids installing OS updates. They end up updating soon anyway for a variety of reasons (some updated apps stop working, update occurs "on its own" overnight, to get rid of of the notification icon, and so on).
BC Hydro, via Powerex, trades energy within this region [2].
[1] https://en.wikipedia.org/wiki/Western_Interconnection
[2] http://www.caiso.com/Documents/PowerexWillJoinWesternEnergyI...