Originally Posted by Skippy

As for which is the better deal, you also need to consider what times of day you're using more or less power. If, as I suspect, you're running air conditioning, your usage during the day is probably going to be considerably higher than at night. My company offers breakdowns of usage versus time on hourly, weekly, and daily bases. I know that I use slightly more power on weekends, since I'm more likely to be home, and that my daily power use peaks around the time I get up and around the time I get home.