A solar-powered attic vent fan will make your home comfortable by extracting hot air from the attic without racking up operating costs. Even more, it will reduce your cooling costs by reducing the demand on your air conditioner or whole-house fan. Because these fans use the power of the sun, your operating cost will be nothing. Better yet, these solar-powered fans are easy to install for most any do-it-yourselfer. So invest a little money up front, match it with some of your time, and start saving on your cooling bills immediately and for as long as you own your home.

{google2477367541}

If you found this tip helpful, you might also want to read this:
Install ceiling fans in rooms used frequently
Green From the Foundation Up
Use environmentally-friendly products to save money and the environment