I came across a couple green sites recently...they provide wind and solar information based on your address. The first is findsolar.com. This site helps determine the solar viability of your home. Once basic information is entered (address and power company), the site spits out the utility savings per month, total cost, solar panel size, tax credits and anything else you would need to know before you installed a solar panel on your house. The second site is firstlook.3tiergroup.com. With this site, after you create an account, you can figure out how much wind hits your property by providing your location. These sites provide excellent initial cost info on the solar and wind investment decision. When you consider the fact that installing a solar panel can cost between $30,000 and $60,000 (before credits), you want to make sure that you are figuring out all of the relevant costs and benefits of a particular decision.