... coal 15%) in 1970, and it increased to 31% Sustainable Growth and Applications in Renewable Energy Sources 74(lignite 19%, hard coal 12%) in 1990 with an increase rate of 16%. In 2009, ... production by energy sources (data from TEIAS 2009) Sustainable Growth and Applications in Renewable Energy Sources 84Yılmaz, A.O.(2 011) , Evaluation of Turkish Lignite Mining, Tunçbilek ... most imported energy sources with a Sustainable Growth and Applications in Renewable Energy Sources 86 Legitimacy of demand, which is to prioritize energy projects according to the law...