DoDo, you're absolutely right that wind's potential for decentralization is one of the key advantages.  It's just that in some areas of amurka's huge Great Plains resource, there's nothing but space.  So in effect what's happening in west Tejas and Panhandle is merely making use of the resource and attendant conditions there.

In many other areas the projects are much smaller, though generally still a bit bigger than Euro projects.  On the order of 60 to 120 MWs.

"Life shrinks or expands in proportion to one's courage." - Anaïs Nin