Barcelona Traction (originally called Barcelona Traction Light and Power Company and abbreviated BTLP) was a corporation that controlled light and power utilities in Spain and was incorporated in Toronto Canada on September 12 1911 by Frederick Stark Pearson. It was operated in Spain but was owned mostly by Belgians. The company was developed by American engineer Dannie Heineman. It was the subject of the important International Court of Justice (ICJ) case Belgium v.