First of all, this means, of course, paying attention to the external as well as internal dimension of energy supply security. In the external dimension, ensuring transparent global markets that enable a mutually beneficial division of labour and the realisation of the comparative advantage of each trading partner is of particular importance. In the internal dimension, the focus must be on creating appropriate market conditions and incentive systems that enable all technologies to deliver their potential contribution to the security of supply, in particular high fixed cost, low-carbon technologies.