1. INTRODUCTION REK Bitola is located in the southern part of Macedonia, in Pelagonia plain. It has been built on the basis of the finds of coal-lignite, at around 12 km eastwards from the City of Bitola. Today, REK Bitola with its three completed blocks of individual capacity of 225 MW or total installed capacity of 675 MW provides an average annual generation of 4, 34 million MWh electricity. .