What does that have to do with power grid failures?
Also having AC, even if it's not necessary, can be very useful.
"Seattle averages 24 days a year when the thermometer reaches into the 80s °F (over 27 °C). The temperature typically climbs to 90 °F (32 °C) on just one or two days a year."
That's high enough to cause a serious reduction in productivity/enjoyment. If the average person is exposed to those temperatures for 3 hours a day as a lack of home AC, and loses 10% of that time, that's 7 hours a summer. Multiply by minimum wage and it only takes a summer and a half to meet the cost of a window AC unit. Which should last a long time if it's only used one month a year.
Also having AC, even if it's not necessary, can be very useful.
"Seattle averages 24 days a year when the thermometer reaches into the 80s °F (over 27 °C). The temperature typically climbs to 90 °F (32 °C) on just one or two days a year."
That's high enough to cause a serious reduction in productivity/enjoyment. If the average person is exposed to those temperatures for 3 hours a day as a lack of home AC, and loses 10% of that time, that's 7 hours a summer. Multiply by minimum wage and it only takes a summer and a half to meet the cost of a window AC unit. Which should last a long time if it's only used one month a year.