The security and reliability of energy supply systems are crucially important question for the economy of any country, in particular in relation of gas and electricity supply. These energy supply systems can be represented as a sophisticated graph where edges are supply paths and vertexes are constituted from demand and supply nodes, as well as the supply junctions. The optimal behaviour of such network systems rely on the development of robust models which could simulate these systems. These models are targeted to optimize a set of economic and environmental objectives, subject to the set of delivery constraints. The recent (28 September 2016) electricity supply blackout in South Australia indicates how important it is to indicate the vulnerability of such supply systems to external impacts. The session invites authors to submit papers which model these network systems and analyse the vulnerability of such systems to climatic impacts, natural disasters and demographic changes. The intention of this session is to highlight models of renewable energy sources, such as solar, wind, hydro and tidal power generations.