People

Daniel Felipe Avila Girardot
Post-doctoral researcher

Daniel is a post-doctoral researcher at the Center for Operations Research and Econometrics (CORE). He received his PhD at UCLouvain, and his bachelor and master’s degree from the mathematics department of Universidad de los Andes, Bogotá, Colombia. His research interests include convex optimization, stochastic programming, renewable energy integration in power systems.

Daniel Felipe Avila Girardot

Post-doctoral researcher
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Dimitris Chatzigiannis
Research associate

Dimitris is a research associate with the team of Anthony Papavasiliou at the department of Electrical Engineering at the National Technical University of Athens. He received his Dipl.-Ing. and Ph.D. degrees in electrical engineering from the Aristotle University of Thessaloniki in 2009 and 2014, respectively. He has multiple years of experience in energy systems operations, trading activities and the application of Information and Communication Technology in the energy business, through his work in the private sector. His research interests lie in the area of energy economics and operations research.

Nicolas Stevens
PhD student

Nicolas is a PhD student at the Center for Operations Research and Econometrics (CORE), UCLouvain, since November 2020, under the supervision of Anthony Papavasiliou. He graduated from the UCLouvain School of Engineering in Applied Mathematics in 2016. From 2016 to 2020, Nicolas worked at N-SIDE, as a consultant in the energy sector. In this former position, he used to work with TSOs (e.g. designing the dynamic FRR dimensioning approach for the Belgian TSO ELIA), DSOs and Market Operators (e.g. he was part of the support team of EUPHEMIA, the day-ahead market clearing algorithm in Europe) on various innovative projects. Currently, his research focuses on pricing related topics in the context of TSO/DSO coordination.

Nicolas Stevens

PhD student
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Marilena Zambara
PhD Student

Marilena Zampara is pursuing a PhD at NTUA, working on stochastic optimization for energy systems. She holds a Diploma in Electrical and Computer Engineering from NTUA and a MSc in Management Science and Engineering from Columbia University, New York. She has extended working experience in the intersection of the operations research and energy fields.

Marilena Zambara

PhD Student
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Ruan Zejun
PhD Student

Ruan Zejun has been a PhD candidate at the Energy Systems Lab at National Technical University of Athens (NTUA) since 2023. He graduated from NTUA in 2023 with a joint BSc-MSc in Electrical and Computer Engineering. His interests include congestion management, optimal power flow, the coordination of TSO and DSO operation, and the integration of renewable energy in power systems.

Ruan Zejun

PhD Student
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