Yeah, that would be the pits. Just last week the electricity went out along a block of my area. The heat index was around 115, and the humidity was probably 90%. The A/C and fan did not work, it was hell. Thankfully it was back online after a 1 hr.
I remember that blackout in TO one summer...it was the night after I had my wisdom teeth taken out so I'd slept all day and as such was wide awake all night, but couldn't see anything or do anything because of the blackout. lol. I was boooooored.
That said, I havent given much thought to the possibility of a blackout this summer. But a long blackout would kinda suck.