[coolio4433]

Okay as someone who works in this industry (Electric Power and Relaibility), I feel an unnatural need to chime in.
Wind, Solar, Nuclear all need to be a part of the future of energy production in this country and the world, but as was stated previously, the wind doesn't blow 24/7, even in North Dakota, and the sun doesn't shine brightly every day. The storage devices currently employed are okay, but not sufficient on a large scale to be implemented like some of you are suggesting.

The other issue with wind power is that, at least in the upper midwest, when electric demand is the highest (July and August) the wind is blowing the least.

And we don't even want to start a discussion about the transmission lines that would need to be constructed to go with a large scale wind farm or solar farm. Not to mention the stability concerns on the entire system caused by the minute to minute fluctuations that can happen with these generation methods.
Capacitor banks can help, but those aren't exactly the cheapest or best methods either.

This is where Nuclear and Coal come in. These are used for base load and are always running pretty much full bore 24/7 which helps the system stay on frequency when wind and other sorts of fluctuating generation sources come on line.

Pretty much, there is no easy solution, despite what some environmentalists would have you think, but by using everything available to us, we can certainly start taking steps in the right direction.