PhD thesis defense to be held on October 10, 2025, at 13:00 (Conference Room Nο 3, Central Library)
Thesis title: Contribution to the Provision of Flexibility Services from Distributed Energy Resources.
Abstract: The increasing integration of Renewable Energy Sources (RES) and the transition towards smart, sustainable power grids are driving the gradual decommissioning of conventional thermal generation units. This shift creates two major challenges for power systems: the reduction of installed conventional thermal capacity, which has traditionally been the main provider of system flexibility, and the growing penetration of RES, which introduces uncertainty and variability due to their stochastic production.
This dissertation explores approaches for providing flexibility aiming to strengthen the ability of transmission and distribution system operators to manage their networks securely, efficiently, and cost-effectively. The main objective is to incorporate the flexibility potential of distributed generation units connected to distribution networks into system planning and operation, promoting a transition from the traditional, centralized provision of flexibility towards a bidirectional cooperation framework between transmission and distribution system operators.
Supervisor: Professor Nikos Hatziargyriou
PhD Student: Nikolaos Savvopoulos