Brussels, 10/11/2006 (Agence Europe) - In a letter to EU Energy Commissioner Andris Piebalgs this week, Bulgaria's economics minister, Roumen Ovcharov, warned that the closing down of two 440 megawatt nuclear power stations at Kozlodui could lead to disturbances in electricity supply in the Balkans region. Bulgaria exports a lot of electricity to other countries in south-east Europe but has been forced to cut export because of problems with supplies of coal from the Ukraine for coal-fired...