Dr. Baligh El Hefni has 34 years of research, industry and teaching experience. He specialised in physical modelling of various types of power plants. In 2002, he joined EDF Research & Development division (R&D). He contributed to the development of power plants modeling activities, within the EDF and its subsidiaries, thanks to the use of ThermoSysPro library (developed by the authors). This has allowed him to collaborate with major industrial players, research and academics in the framework of many European projects (DLR, Dassault-Systèmes, Dassault-Aviation, Siemens, IFP, OpenModelica …), in which EDF’s contribution was recognized. The main objectives of these projects are: to improve the modeling languages, the tools, the methods (stat estimation), and to extend the modeling domains (multi-mode systems, property modeling). The experience in the power plant modeling has allowed him to develop solid competencies and a specific know-how that has allowed him to expand our activity towards the development of solar power plants, and collaborate with CENER (Spain), Chinese Academy of Sciences (China), CEA (France) and other partners. He is in charge of training courses of the modelling of power plants and energy systems, for EDF staff and partners. He was also in charge of the same training at Ecole Centrale de Paris “Engineering Training School”.