The true challenge would be to tie in the windmills with the peruvian-ecuadorian border conflict (where the other side would be at a severe (dis?)advantage since they use only watermills)
El Pip could do an expose about the covert war between windmills and watermills. Man, it's ugly.
I understand that in the USA it may be sensitive...
Another vote for industrial relations.
It occurs to me that windmills could be worked into the industrial update, much earlier UK windfarms?