Why does hot weather cause power outages?

[unable to retrieve full-text content]Why is the power grid so sensitive to high temperatures? It's quite simple really. First, we certainly love our air conditioners, and air conditioners demand a lot of power. Second, power is generated at only a few places in the country, and yet our air-conditioned homes and businesses and factories are everywhere.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/matter_energy/electricity/~3/SjKVjhK4ouI/130719103146.htm

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