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Commit to Connect 2050

A target scenario for the renewable energy system in eastern Germany


The measures for implementing the Energy Transition have not yet been able to integrate the various sources of energy into one system. However, instead of continuing to develop energy sources and technologies individually, what is required is a cross-sectoral perspective combined with stronger connections between market partners. That is why we have launched the “Commit to Connect 2050” (CtC2050) project and committed ourselves to a joint analysis of our energy system across all sources of energy. In particular, we aim to answer the key climate and energy policy question for our region:

What is the economically optimised target scenario for a completely decarbonised energy system in eastern Germany in 2050?

It is a fundamental challenge for us to determine which technologies for energy supply and use will prevail by 2050 from an economic point of view and which types of networks will transport this energy. With this knowledge, we can then determine how we need to transform our assets at the lowest possible societal cost by 2050 in order to be able to guarantee security of supply at all times, even in the face of the climate-neutrality target for 2050.


Community of 14 energy companies

The CtC2050 partner companies represent different lines of business and various stages of the supply chain: Transmission and distribution grids, energy generation and storage. Together the CtC2050 partners own and operate an electricity grid of 280,391 km in length, a 94,417 km gas grid, a gas storage volume of almost 2 billion cubic metres, and supply approximately four million MWh of district heating. Already today, we feed about 50 million MWh of renewable electricity from wind and solar power generation into the grids. A total of 82 biomethane production facilities and one hydrogen production facility feed into our gas grids.

Innovative modelling open to results and technology

In order to calculate such a target for our region, an innovative method is required that provides us with a clear target scenario, independent of fluctuations in the political framework. The general criteria for the target scenario are climate neutrality, security of supply and economic cost optimisation. Based on these criteria, our calculations are technology neutral and without predefined goals. For this calculation, we also regard eastern Germany as an independent, self-sufficient energy system. The final innovation lies in regionalisation. The calculation was also carried out for nineteen sub-regions, which together cover the whole of eastern Germany and are connected via energy transmission networks.

Key results and publications

Commit to Connect 2050 shows that it is possible to establish and operate a completely decarbonised energy system in a cost efficient manner. It is important to look at the entire system for a successful Energy Transition. Today's political decisions have to be open to a broad mix of energy sources and technologies. Furthermore, we need increased efforts in sector integration. The project partners DREWAG Netz/ENSO Netz, ENERTRAG, GASAG, inetz and ONTRAS have prepared a fact sheet and short version of the CtC2050 final report in English. The full version of the final report by the author Wagner, Elbling & Company is available in German.  

All documents of Commit to Connect 2050 in German are available here.

Online presentation of Commit to Connect 2050

Click here to watch a recording of the online presentation of Commit to Connect 2050 in English. Choose the tab "Videos".