I can't find the article, but I read one recently that the number of turbines in Scotland had doubled in the last few years but the amount of power produced by wind up there had only increased by 17% over the same period. 
It is criminal what they have done totally wrecked beautiful scenery with those monstrosities ... Driving up the M74 all you can see are those things covering the hills in all directions where the rolling green hills were a lovely welcome to Scotland now it is just an eyesore...

It breaks my heart every time I go up to my mums too see them I hate them with passion....
