Dr. Nadia Horstmann is head of Section at the German energy regulator Bundesnetzagentur and responsible for the coordination of the international relations in the energy and postal sector. She is leading both the Energy Policy Unit and the Reporting and Benchmarking Task Unit of the Council of the European Energy Regulators. She is a member of the Board of Appeal of ACER. Dr. Horstmann has been lecturer in various universities (recently at Heinrich Heine University in Düsseldorf and at Sciences Politique/ENA Strasbourg). She published on various topics related to the legal framework of the Energy market liberalisation.

Alexander Linov is a Senior Legal Advisor at the Federal Network Agency (Bundesnetzagentur) where he has gained professional experience in various legal areas of gas and electricity market regulation including interpretation and implementation of network codes/guidelines, TSO unbundling, infrastructure, environmental law, REMIT, governance and international issues. Alexander is vice-chair of CEER Regulatory Benchmarking and Legal Committee (RBL), being responsible for several CEER publications and an active member of ACER's Legal Expert Network (LEN). Alexander holds a Master of Law (Magister iuris) degree from the University of Cologne and has been admitted to the German Bar.

Filipe Matias Santos, Law graduate and Master in Law from NOVA School of Law,  is the Head of Legal of the Portuguese Energy Regulatory Authority (ERSE), member of the network of experts of Nova Green Lab, member of the General Assembly of CEDIPRE (Research Center for Public Law and Regulation of Coimbra Law School), and member of the Legal Affairs Committee of the Council of European Energy Regulators (CEER). He is a frequent conference speaker, including in international conferences, regarding public law and energy and he frequently teaches in executive and post-graduate degrees (Católica Lisbon School of Law, Coimbra School of Law, Lisbon School of Law and Nova School of Law). He is co-coordinator of Energy Law Course for executives in Nova School of Law. Before joining ERSE in 2013, his career began in Garrigues law firm, he has been a lawyer and senior legal advisor for 8 years at the Portuguese Markets Regulatory Commission (CMVM) and was several years lecturer in the Portuguese School of Bank Management (ISGB). He has post-graduate qualifications in Energy Law awarded by the University of Lisbon and in Regulation of Energy Utilities awarded by the Florence School of Regulation/European University Institute. He also attended the PAGE – Executive Program in Advanced Management 2022 fall of Católica Lisbon School of Business and Economics. In addition to his mater´s thesis “Duty of Disclosure by Issuers”, regarding market abuse, he published more than two dozen of articles with regulatory relevance, some of them collected in “Reflections on Energy Law”.

Ruben Lapa Maximiano is a Senior Competition and Regulatory Policy Expert at the OECD in Paris and a lecturer at Lille Catholic University, where he teaches EU Merger Control.
At the OECD Economics Department he is responsible at the for projects on regulatory reform to reduce regulatory barriers to clean tech entry and scaling, including on energy. He was previously the Manager for Competition Policy in the Asia-Pacific region at the OECD for 8 years where he led numerous teams for several projects. He lead work on regarding industrial policy and sustainable economy, and for the Covid-19 Competition Policy Task Force. He has also written extensively on sustainability and competition, as well as on the role for competition policy in the Covid-19 economic recovery.   Before joining the OECD, Mr. Maximiano worked at DG Competition of the European Commission for nearly 5 years, having worked mostly on merger control in a number of sectors and been a part of the Financial Crisis Task Force where he worked on a number of state aid cases in the banking sector. Prior to that he worked at the Portuguese Competition Authority where he was Senior Case Handler and as a Lawyer in Vieira de Almeida & Associados in Lisbon, Portugal in the Competition Law, Energy and Telecoms regulation field and before that at Squire, Sanders & Dempsey in Brussels. He is admitted to the Portuguese Bar. Mr. Maximiano received an LL.M. in European Law from the College of Europe, Belgium (2001) and has an economics post-graduate certificate from King’s College London.

Wouter Meester is a senior economist with over 20 years’ experience spanning the public and private sectors, as well as international organisations, advising governments and companies on economic, strategic and policy issues.   Currently, he manages projects, develops data analytics and writes papers to help established, emerging and transitioning economies develop and implement effective policy reforms related to competition, regulation and the green transition. Previously, he held different positions at the OECD, including Competition Expert and Team Lead within the Competition Division, focused on the advancement of competition law and policies around the world, and Project Manager in the Global Relations and Cooperation Directorate, focusing on improving competitiveness in Central Asia and Eastern Europe.   Before joining the OECD, he was Senior-Manager at PwC Consulting in the Netherlands and Canada. At PwC, he advised companies, governments and (non)governmental organisations on economic and strategic issues – including competition, regulation, strategy development, commercial due diligence and economic impact. He was also a Merger Case Handler at the Netherlands Authority for Consumers and Markets, where he assessed the impact of notified mergers or acquisitions on the Dutch competitive landscape. Mr. Meester holds a MSc. in Economics (Industrial Organisation) from the University of Amsterdam.