This is really cool. Fan's can definitely save more energy than an air conditioner and are also more environmentally friendly.
You'll become a fan of whole-house fans | Freep.com | Detroit Free Press
...a whole-house fan uses only 10% to 20% as much electricity as a central air conditioner. Also, it uses significantly less electricity than a window air conditioner, yet it keeps the entire house more comfortable, not just one room. Installing one generally provides a good payback on the investment.
You'll become a fan of whole-house fans | Freep.com | Detroit Free Press