Your know, sample quotes are a lot like the bits of scripture quoted by some to justify their preconceptions. Without the context it is meaningless.
I'll give you some perspective, then. If you wanted to power the part of Colorado that sits east of the Rockies, with wind power and battery back-up, here's what you'd have to do: Plant a giant fan farm from the front range to the Kansas, Oklahoma, Wyoming, and Nebraska state lines. 4 fans per square mile. The battery site would have to be roughly 200 square miles. Does it sound feasible?
