Implikationen der Integration von Energiespeichern in Stromnetze am Beispiel des deutschen Stromversorgungssystems

Adam Witkowski, Georg Meran, Technische Universität Berlin, Technische Universität Berlin
The rapid expansion of renewable energies – above all wind power and photovoltaic – leads to higher quantities of fluctuating electricity in power supply systems. Germany, in particular, has a high share of fluctuating electricity generation. This is causing integration difficulties and is reflected through occasional negative electricity prices. The German government considers energy storage as a solution to this issue and subsidises the development of storage capacity in electric grids with
more » ... ectric grids with significant funds. In this work, a model-based quantification of energy- and environmental-economic effects provides insights about implications of storage capacity development in the German power supply system. Evidence is given that the intended advantages of a better integration of renewable energy sources are overcompensated by negative effects of an altered conventional power generation structure. Over the next decades, higher storage capacity would lead to higher CO2 and air pollutant emissions of the German power supply system – in contrast to originally stated subsidy objectives governmental funding principles.
doi:10.14279/depositonce-9433 fatcat:e6jnbcmlsrhpjcxicdmkafc7ii