"The problem with wind turbines is clearly shown at <a href=""http://www.youtube.com/watch?v=5uz6xOFWi4A&amp;t=0m21s"">0:21</a>. I would say that this wind has to be supplemented with solar energy", sea tide  and waterfall energy.  Damming river has caused a lot of problems too. I feel it is immoral to use electricity from a thermal power station to heat with, when a direct gas flame will  be much more efficient on the environment.