About eTraGo¶

eTraGo (electric Transmission Grid optimization) has been developed as part of a comprehensive toolchain. The following sections introduce key projects, data models and software tools within this context. More detailed information can be found in the publications listed below or the following reports: [openeGo_report], [eGon_report]

Research Projects and Publications¶

eTraGo was initially developed within the research projects open_eGo and eGon. It is constantly further developed in different reserach projects, e.g. PoWerD and reGon.

Publications:

Challenges of top–down flexibility deployment for grid expansion across all voltage levels [Buettner2025]
The impact of redispatch on grid and storage expansion planning in the German energy system [Buettner20242]
Avoiding False Inter-Zonal Meshing in the Clustering of a Large-Scale German Power Grid [Esterl2024]
Influence of flexibility options on the German transmission grid — A sector-coupled mid-term scenario [Buettner2024]
Integrated Techno-Economic Power System Planning of Transmission and Distribution Grids [Mueller2019]
The eGo grid model: An open source approach towards a model of German high and extra-high voltage power grids [Mueller20181]
The Role of the High Voltage Power Level in Future Power Systems and Their Modelling [Mueller20182]

eTraGo as part of the eGo-Toolchain¶

The tools illustrated in the graph above have been developed for cross-grid level optimization of the sector-coupled energy system in Germany as part of the aforementioned research projects. The following section describes the individual elements of this toolchain.

Open Energy Platform¶

The Open Energy Platform has been developed within the open_eGo project. It addresses students and researchers as well as interested people in the field of energy modelling and analytics and provides tools to make energy system modelling process transparent.

All data of the open_eGo and eGon project are stored at the Open Energy Platform. eTraGo retrieves the input data from the Open Energy Platform and enables to store back the results.

Data Model Creation¶

The corresponding data model is created using the Python tool eGon-data, which represents a further development of the data processing <https://github.com/openego/data_processing> tool. The model covers the coupling of electricity grid models on different voltage levels with gas grid models (depending on the scenario considered) and captures sectoral demands and flexibilities from electricity, mobility, heat, and gas systems, including further electrical flexibilities such as demand-side management and dynamic line rating. It is characterised by a high spatial resolution within Germany, while other countries are considered in an aggregated form. Several future scenarios have been developed, each covering one year in hourly resolution and differing in terms of generation, demand and availability of some technologies.

The developed data model provides data consistent on different aggregation levels and serves as input for the tools eTraGo, eDisGo and Ding0. The outputs of eGon-data are published under open source and open data licenses.

Distribution Grid Optimization¶

Ding0 (Distribution Network Generat 0r) is a tool to generate synthetic medium and low voltage distribution grids based on open data.

eDisGo (electric Distributon Grid optimization) provides a toolbox for optimization and analysis of medium and low voltage distribution grids.

Cross-Grid Level Optimization¶

eGo combines the tools eTraGo and eDisGo for cross-grid level optimization of the sector-coupled energy system in Germany.

License¶

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see www.gnu.org/licenses.