During the Energy Security Conference that took place on 9 October in Brussels the Commission reiterated its support to cities committed to the Covenant of Mayors movement. High level representatives from EU institutions, including Vice President of the European Commission Günther Oettinger, President of the Committee of the Regions Michel Lebrun and Chair of the European Parliament ITRE Committee Jerzy Buzek all joined to praise the Covenant of Mayors success, which has helped translate the 2020 EU climate and energy targets into local action across Europe. Answering positively a special invitation from Dominique Ristori, Director General for Energy in the conference participated also Zbigniew Michniowski, President of the Board of the Association of Municipalities Polish Network "Energie Cités" and the Deputy Mayor of Bielsko-Biala city as well as Leszek Drogosz, a director of the Infrastructure Department of the City of Warsaw and a deputy President of the Board of the Polish Network “Energie-Cités”.