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Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 11: Energy Systems (joint session DY/SOE)

DY 11.2: Vortrag

Montag, 12. März 2018, 12:15–12:30, BH-N 128

Scaling of transmission capacities in coarse-grained renewable electricity networks — •Mirko Schäfer1, Simon Bugge Siggaard2, Kun Zhu1, Chris Risager Poulsen2, and Martin Greiner11Department of Engineering, Aarhus University, Denmark — 2Department of Physics and Astronomy, Aarhus University, Denmark

Network models of large-scale electricity systems feature only a limited spatial resolution, either due to lack of data or in order to reduce the complexity of the problem with respect to numerical calculations. In such cases, both the network topology, the load and the generation patterns below a given spatial scale are aggregated into representative nodes. This coarse-graining affects power flows and thus the resulting transmission needs of the system. We derive analytical scaling laws for measures of network transmission capacity and cost in coarse-grained renewable electricity networks. For the cost measure only a very weak scaling with the spatial resolution of the system is found. The analytical results are shown to describe the scaling of the transmission infrastructure measures for a simplified, but data-driven and spatially detailed model of the European electricity system with a high share of fluctuating renewable generation.

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