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Measuring energy security / Christian Winzer. Electricity Policy Research Group, 2013, 36 p. (EPRG Working Paper 1303)http://www.eprg.group.cam.ac.uk/wp-content/uploads/2013/02/1303-PDF.pdfContinuity of energy supplies is a central aspect of concerns about energy security. Although the continuity of supplies can be influenced by a large number of risks, most models only analyse a small subset of risk sources and often neglect interdependencies between them. In this paper we introduce a probabilistic time-series model that quantifies the impact of inter-dependent natural, technical and human risk sources on energy supply continuity. Based on a case study of Italian gas and electricity markets we conclude that typical simplifications in time-series models and alternative approaches lead to a bias, which justifies the usage of detailed time-series models of interdependent risks such as the framework suggested in this paper, even though more detailed versions of this and other frameworks may quickly become very resource intensive. (© EPRG)