council recommend ration energi promot thermal insul build eec council european commun regard treati establish european econom commun regard draft commiss resolut septemb energi polici strategi commun council accept object quot reduct rate growth intern consumpt measur energi ration econom jeopard social econom growth object quot resolut decemb commun action programm ration util energi council note commun council entitl quot ration util energi quot commiss drawn commun action programm field suitabl system introduc inform public wai improv thermal insul build help promot ration energi measur recommend produc suffici larg save energi make requir invest econom worthwhil recommend member state organ sponsor specif inform campaign design stimul public interest improv inadequ poor qualiti thermal insul system residenti accommod set reorgan maintain inform advisori agenc offic capabl provid practic inform case order ensur utmost effect measur point assess averag extent thermal insul exist residenti accommod sampl survei endeavour find method improv organ competit draw develop programm obtain origin idea improv insul exist residenti accommod refer invest requir cost effect term energi save adopt harmon commun refer standard thermal insul drawn implement law regul administr measur ensur criteria basi assess ident commun countri build materi compon circul freeli commun intern market standard appli stage type build turn begin offic public build brussel council presid thorn oj oj