The Romanian Network of Energy Cities (OER) Implementing Lessons from MENERGERS Decoding Municipal Energy Management: Romania vs. Bulgaria – Identifying Similarities and Differences Study Visit to Berlin for the Romanian Pilot Cities involved in the MENERGERS project National Trust EcoFund (NTEF) Independent Institute for Environmental Issues UfU e.V. Berlin Sofia Energy Agency – SOFENA Energy Cities Romania/ OER MENERGERS Study Trip: Bulgarian Representatives Visiting Germany Inspiration for Energy Management Solutions at the European Level: Focus on Bulgaria, Romania and Germany