council recommend member state encourag invest solid fuel public build district heat system eec council european commun regard treati establish european econom commun articl thereof regard propos submit commiss regard opinion european parliament regard opinion econom social committe regard commun commiss role coal commun energi strategi consider extent commun depend oil import concomit uncertainti suppli price impos constraint commun economi slight econom upturn industri countri conjunct increas oil demand rest world increas constraint polici oil substitut facilit process structur adjust accomplish pursu polici ration energi includ increas contribut made substitut sourc energi special refer solid fuel desir solid fuel establish instal allow environment consider public build district heat system offer consider scope substitut solid fuel oil price advantag solid fuel fuel oil process substitut made slow start factor involv high invest financ cost numer obstacl invest includ environ protect requir site problem lengthi approv procedur uncertain econom prospect rel price solid fuel oil lack experi solid fuel shortcom infrastructur suppli solid fuel consum uncertainti futur develop solid fuel technolog solid fuel includ transport wast process place take environ account member state adopt concert manner coher set measur encourag invest order overcom difficulti obstacl recommend member state environment compat measur public build administr build barrack school suitabl district heat system encourag convers reconvers solid fuel exist combust instal fire fuel oil encourag build solid fuel fire instal notifi commiss end year measur field cover recommend commiss make annual report council form brussel council presid lautenschlag oj oj oj