When you think about the severe drought that continues to affect more than half the country, the first things that come to mind are probably brown lawns and restrictions on your local water use. In the bigger picture, those thirsty cattle and failed corn or soybean crops they're showing on TV mean we’ll see higher food prices in the near future. But extreme heat and droughts also have big effects on energy and on power prices - electricity is related to weather in a major way, and in this case it's an expensive relationship...