On sale now: Wind energy!

Starting today, Whole Foods is selling wind. Yes, much like common phone cards and gifts cards, wind power is now available hanging next to the gum and candy bars in convenient $5 and $15 "Wind Power Cards." Whole Foods is one of the first to sell wind power credits in this way and are timing this effort with their big news of going 100% wind powered.

So how do these "Wind Power Cards" work? Unfortunately, most people don't have the option to power their homes with renewable sources like wind. But you can still offset the electricity you need to use everyday -- basically your purchase of wind power credits promises that a wind farm will replace equivalent energy on the national power grid in your name. There are also resources online, available when you activate your card, where you can learn more about renewable energy and access other neat features.

It sounds like a great way to support renewable energy and reduce the need for traditional power, but unfortunately it won't yet help cut down your personal electric bill.