Dragomir Tzanev is the coordinator of the successfully completed BUILD UP Skills - Bulgaria project and the ongoing BUILD UP Skills EnerPro and Train-to-NZEB projects (EC Horizon 2020 programme); the leader of EnEffect's activities under the NET-COM, PassREg, EuroPHit, EmBuild and ECHOES projects (Intelligent Energy Europe, Horizon 2020) and Financing Energy Efficiency Investments (UNECE). Author of a series of publications and speaker at a number of international conferences on sustainable energy policies, energy efficiency and renewable energy training in new buildings and building renovations, passive and near-zero energy building principles and municipal energy planning.