Mr Zinglersen took office as Director of the EU Agency for the Cooperation of Energy Regulators (ACER) in January 2020.

Before joining ACER, he was the first Head of the global Clean Energy Ministerial Secretariat hosted at the International Energy Agency in Paris (IEA).

His background lies primarily in the Danish civil service, serving most recently as Deputy Permanent Secretary at the Danish Ministry of Energy, Utilities, and Climate, responsible inter alia for the energy policy portfolio. He was also the Danish government’s head of the global climate negotiations, culminating in Denmark’s Presidency of the Council of the EU in 2012. He started his career in the Danish Foreign Service, having been posted in Brussels at the Danish Permanent Representation to the EU. For a number of years he taught Union law at the University of Copenhagen.

He holds a Master’s Degree in Law from the University of Copenhagen and is a graduate of IESE Business School's Advanced Management Program and Harvard Kennedy School's Senior Managers in Government program.

He is married to Christina, a dentist, with whom he has four children, Frederik, Gustav, Maria and Alexander.