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A European Dispatch and Investment Model for Determining Cost Minimal Power Systems with High Shares of Renewable Energy

: Scholz, A.; Sandau, F.; Pape, C.


Lübbecke, M. ; Deutsche Gesellschaft für Operations Research -DGOR-:
Operations Research Proceedings 2014 : Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), RWTH Aachen University, Germany, September 2-5, 2014
Cham: Springer International Publishing, 2016
ISBN: 978-3-319-28695-2 (print)
ISBN: 978-3-319-28697-6 (online)
International Conference on Operations Research (OR) <2014, Aachen>
Conference Paper
Fraunhofer IWES ()

In order to achieve the climate protection targets of the European Commission increased use of renewable energy sources (RES) is vital. As these exhibit an unsteady availability, future power systems will require technologies able to shift the available energyeither in space or time. Such technologies include demand-side-management (DSM), transmission systems and electricity storages while in times of low renewable feed-in flexible power plants such as gas turbines and combined cycle power plants are required.To analyse such aspects in scenarios for the time horizon 2050 with high shares of RES, we have established a combined dispatch and investment model determining required storage and exchange capacities as well as capacities of thermal power plants at minimum economic costs. This linear optimization problem (LP) is constrained to meet the energy demand in each country and every hour of the year. Furthermore, it has to comply with the technology specific restrictions.Generally, wind and solar energy as well as energy fromrun-of-river are taken into account as an hourly time series for each country. These time series are generated in an exogenous step based on detailed geographical and meteorological data and (together with the scenario assumptions for energy demand and DSM) they yield the residual load.Sensitivities examined include two different RES mixes, delayed grid expansion, increased costs for CO2-emissions and a reduced utilization of DSM.The scenario with reduced DSM utilization results in the highest storage demand for Germany while in the other scenarios energy supply is mainly ensured just as well by capacity expansions of combined cycle power plants and gas turbines by extensions on cross-border interconnectors.