 ELECO 2025 Invited Talks |
Dr. Pavlos S. GEORGILAKIS Professor and Vice Dean School of Electrical and Computer Engineering National Technical University of Athens (NTUA), Athens, Greece E-mail: pgeorg@power.ece.ntua.gr Abstract – Accurate minute-scale photovoltaic (PV) power forecasting is crucial for the reliable operation of solar-integrated power systems. Recent advancements in computational power and low-cost data storage have enabled utilization of Ground-based Sky Images (GSIs), which offer high-resolution spatiotemporal insights into cloud dynamics. Simultaneously, breakthroughs in Artificial Intelligence (AI) have revolutionized PV power forecasting, introducing concepts such as deep end-to-end modeling, unsupervised learning, and multi-modal data fusion. This presentation explores the potential and limitations of AI
in GSI-based minute-scale PV power forecasting by addressing three fundamental questions:
To address these questions, a data-driven forecasting pipeline is introduced, integrating GSI classification, Cloud Motion Modeling (CMM), and a hybrid global optimization algorithm. A novel unsupervised learning framework is introduced for automatic multi-class classification of unlabeled GSIs to mitigate dataset imbalance and enhance forecasting accuracy. Additionally, deep convolutional autoencoders are evaluated for their effectiveness in CMM. The hybrid optimization algorithm supports both model calibration and performance enhancements across pipeline components. Results from two real-world case studies highlight the scalability benefits of unsupervised learning, the pivotal role of global optimization, as well as the importance of downstream evaluation. |
 Professor Pavlos S. GEORGILAKIS Biography - In 1990, Dr. Pavlov S. Georgilakis received the Diploma in Electrical Engineering from the School of Electrical and Computer Engineering of the National Technical University of Athens (NTUA) In 2000, he received the Ph.D. in Electrical Engineering from the School of Electrical and Computer Engineering of NTUA  From 2004 to 2009 he was an Assistant Professor at the School of Production Engineering and Management of the Technical University of Crete, Greece. In September 2009, he joined as a Lecturer the School of Electrical and Computer Engineering of NTUA, where from February 2023 until today he is a full Professor. From 1994 to 2003 he was with Schneider Electric AE, the Greek subsidiary of Schneider Electric, where he worked as quality control engineer, transformer design engineer, research and development manager, and low voltage products marketing manager. His research interests are in the area of modern techniques for the analysis, operation, and planning of electric power transmission and distribution systems, and the modeling and design of power transformers. More specifically, the modern techniques include optimization algorithms, artificial intelligence techniques, and forecasting methods. These modern techniques are applied in the planning, optimal operation, and technical and economical analysis of electric power transmission and distribution systems, in the placement of measuring systems, and in the integration of distributed generation and renewable energy sources in the electric power transmission and distribution systems. He has participated in 33 research programs, out of which in eight as scientific responsible. 13 of these 33 research programs are large scale integrated projects that have been financed by the Framework Programs 6 and 7 and by the Horizon 2020 Program of the European Commission. Recently, he participated in the following three research programs that are financed by the Horizon 2020 Program of the European Commission: SHAR-Q (as scientific responsible), WiseGRID, and NobelGrid.
He has supervised four doctoral dissertations, nine Master of Science dissertations, and 76 Diploma Theses, all of which have been successfully completed. He is the author of the following three books:
He is the author of 117 publications in international scientific journals, 15 book chapters and 117 articles in the proceedings of international scientific conferences. According to SCOPUS bibliographic database, his publications have received more than 5500 citations (excluding self citations of all authors), Author ID: 6603883470 He is editor in the international scientific journals IET Smart Grid, Energies, and Electricity.   He is reviewer in 16 international scientific journals. In 2013 he received the best reviewer award from the Electric Power Systems Research journal of Elsevier.  He is a senior member of the Institute of Electrical and Electronics Engineers (IEEE) and a member of the Technical Chamber of Greece. Research Interests: Transmission & Distribution • Transformers • Power System Planning and Implementation • Power System Analysis, Computing and Economics • Power Engineering |
