Dr Annegret Groebel is the Director of International Relations at the German Regulatory Authority for Electricity, Gas, Telecommunications, Post and Railway at BNetzA. Dr Groebel has worked for BNetzA since 1998. She was CEER President from 2019 to 2026. She has also chaired the CEER Market Integrity and Transparency (MIT) Working Group since 2013. She is a member of the Board of Regulators of the Agency for the Cooperation of Energy Regulators (ACER) and is also involved in the work of the Independent Regulators Group (IRG) and the Body of European Regulators for Electronic Communications (BEREC). Dr Groebel has a doctorate in Economics from the University of Mannheim.

Since 2013, Esther is serving as Director for Energy Derivatives Markets at the Spanish Regulatory Authority (CNMC). On 2014, Esther was appointed the Spanish alternate member of the Board of Regulators (ACER Decision AB nº 03/2014). Prior to joining CNMC in 2007, Esther worked as consultant in energy and economic issues in the private sector for 5 years. Her division is responsible for the REMIT implementation in Spain, the supervision of forward markets and the validation of several energy auctions, including the analysis of regulatory proposals for energy market mechanisms. Esther is also member of the Technical Committee of the MIBEL, regularly meeting with the Spanish and Portuguese financial and energy regulators. Esther holds a B.A. in Economics (UCM) and a MSc. in Economics and Finance (CEMFI). She has strong skills in economic analysis, microeconomics and finance, as well as in monitoring of wholesale energy markets.