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Electricity market design varies across countries throughout Europe. Thereby the provision and remuneration of flexibility always takes place in short-term market segments. Taking into consideration the fundamental changes of the power system, this paper discusses options for the future short-term market design. We develop a conceptual basis for a possible integration of currently separated short-term market segments. Market segment integration (MSI) is defined as the interaction between and possible combination of market segments, i.e. intraday market (ID), congestion management (CM) and balancing market (BA). The paper especially focusses on two options, namely an integrated BA and CM market and an integrated ID and CM market. For these options we determine the basic design features. We propose a criteria catalogue which allows the evaluation of the market design options. Based on several criteria we discuss possible positive and negative consequences as well as potential solutions.

Almost all major companies are embedded in complex, global supply networks. Exogenous shocks on these networks (e.g. shortages of natural resources, natural disasters) can indirectly impact companies that are not even aware of their dependencies. This short-paper deals with the idea of modeling and analyzing impacts of exogenous shocks on supply networks using Petri nets. It is especially relevant for high-tech industries (wind and solar energy, besides others) as these are highly dependent e.g. upon rare earth metals. Today, 97% of the global rare earth metals supply is controlled by China, which is continuously lowering export rates due to own requirements. The final objective of this research stream will be to provide means to simulate and evaluate the vulnerability of companies against exogenous shocks affecting their supply networks.