eNetze / eNetworks – Future Energy Flows and Requirements for the Electricity Distribution Network on District Level in the Context of Sustainable Mobility and Energy Supply

Problem Statement

To reach the climate goals of Baden-Württemberg a transformation of the energy system towards a sustainable energy supply characterized by decentralized energy supply from renewable sources is required. Urban areas are in particular in the focus due to the prevailing land conflicts, diverse supply tasks and high load densities, which is examined based on the example of the city of Stuttgart. Investigations within the eUrban project showed that there is a need for action for about 10% of the substations for the year 2030.

Since time-intensive planning and implementation measures are necessary for fundamental adjustments in the infrastructure, an early identification of fields of action is necessary. The project plans to investigate the utilization of lines and nodes in typical urban low-voltage distribution networks.

Objective

The aim of this project is to quantify the electrical demand (considering electric mobility but also all other needs) for the year 2030 and to work out impacts on the typical urban electricity distribution network at the neighborhood level. The results will be used to develop planning principles for urban supply tasks and to identify specific needs for action for certain types of neighborhoods or clusters of distribution networks

Methods

In this project, a holistic approach is taken. First, neighborhoods with distribution network structures that are typical for urban areas will be identified. In the next step, typical demand for these quarters will be quantified, which will result from electric mobility but also other changing framework conditions (e.g. sector coupling). The electrical distribution network is then simulated in order to perform load analyses and to identify flexibilization potentials.

The task of the IfV is to determine the future energy demand (spatially and temporally) resulting from electric mobility. For this purpose, various simulations are conducted with the transport demand model of the Stuttgart region (mobiTopp) in order to test, for example, the effects of different charging strategies on the behavior of individual agents but also on the load in the network.