"If the wind of changes blows, some build walls, others windmills!", this Asian proverb particularly affects me. As a child I have felt the changes the "Fall of the Wall" meant for many around me. Now people around the world worry about the living conditions of our earth in the certainty of the progressing climate change. What do large industrial nations, like Germany and Japan do against this change? Will they hide behind walls of market foreclosure or will they go forward and assist a new industry for wind and solar power to develop. This thesis focus on the development of these two...