Energy is crucially important to all of us. We depend on an abundant and affordable supply of energy. The European Commission’s flagship Energy Union Strategy recognises this fact and has five aims: energy security; the completion of the internal energy market; energy efficiency; emissions reduction; and research and innovation. An agreed EU energy governance framework will underpin the relationships between the EU institutions and Member States. Such a framework will seek to meet the energy policy objectives of the EU on the one hand, and fulfil national aims on the other. Capacity markets can help to secure energy supply in the medium term at a competitive price. We call for the development of common EU standards for capacity markets, a greater emphasis on the role of regional co-operation, energy storage and demand side measures, and the opening up of domestic capacity markets to cross-border mechanisms. We argue that any EU co-ordination of capacity markets should aim to mitigate the distortion of competition and crossborder trade.