Cas Haverman has a 30 year track record in electrical power engineering, IT and data centre industry for Siemens and IBM. He fulfilled many functions from project management, consultancy, finance, to DC Services leader Europe. He founded his own company InterCircular to help organisations and collaborative initiatives to make the transition to a new sustainable and circular economy. An important focus area is on new flexible concepts for data centres of the future as integral part of the energy transition.