Berlin 2015 – wissenschaftliches Programm

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AKE: Arbeitskreis Energie

AKE 13: Fluctuating Electricity Supply: Modelling of Generation, Backup and Storage (joint Session AKE / DY / SOE)

AKE 13.4: Vortrag

Mittwoch, 18. März 2015, 16:00–16:15, A 151

Dimensioning the Minimal Storage Needs in Renewable Power Systems — •Stefan Weitemeyer, David Kleinhans, and Carsten Agert — NEXT ENERGY · EWE Research Centre for Energy Technology at the University of Oldenburg, Germany

Integrating a high share of electricity from non-dispatchable Renewable Energy Sources (RES) in a power supply system is a challenging task; it will likely require large-scale installations of costly storage capacities.

We present a modelling approach to investigate which storage characteristics are most adequate for scenarios with high shares of RES. Adapted from an optimization approach, the model allows to systematically study the influence of important storage parameters (size, efficiency, power) on the integration of RES. In particular, the implications of simultaneously using multiple storage classes in combination with fossil back-up power plants can be investigated.

Applying our model to data for Germany, our simulations show how an extensive integration of RES requires different storage characteristics during different phases of the pathway towards a 100% RES scenario. The results also imply that a balance between installing storage capacities and additional generation capacities is required.