Gas rev Pen Is tep on Per Bu Commercial operations of the LNG terminal are expected to begin in 2022. The Bulgaria-Serbia interconnection is a project of common interest for the European Union, according to Regulation (EC) No. 347/2013 on guidelines for the trans-European energy infrastructure, as well as a project of common interest for the Energy Community, as well as part of the necessary infrastructure for the realization of a gas distribution center &quot;Balkan&quot;. It is also one of the seven priority gas projects under the initiative for gas interconnection in Central and South-Eastern Europe (CESEC).