[exodust]

Massive energy consumption to the point of overloading power grids on hot days continues to be a problem in some areas.

Massive increase in cost of electricity is due largely to the infrastructure needs of meeting peak demand events caused by sudden widespread AC use.

Those who don't use AC in their homes are still paying higher prices in order that the system can cater for the people who use AC.

[saint_fiasco]

I think that last one is fair, because we all benefit economically from the productivity increase. Think of it as trickle-sideways economics.

[exodust]

I was referring to residential AC use which is much less efficient than cooling a commercial building in terms of how many people are kept cool. It's a problem here in Australia at least.