Guillaume Leclercq received his master’s degree in mathematical engineering in 2007 and his Ph.D. degree in applied mathematics in 2013 from the Université catholique de Louvain, Belgium. He is currently Senior Consultant in the energy group at N-SIDE, Belgium. In particular, the market coupling algorithm for the pan-European Day-Ahead market, is developed and maintained by N-SIDE. His main interests/expertise are in the application of optimisation in the energy markets and smart grid fields. He is highly involved in the SmartNet H2020 project, supervising the N-SIDE team and developing new ancillary services market architectures and clearing algorithms.