Water Infrastructure Ressources (Institute)

PoWerD

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Atlas of potential for hydrogen production in Germany

Project duration: 07/2022 - 12/2024

Project editing by: rewa

Persons in charge:

Dipl.-Ing. Oliver Gretzschel

Johanna Walther M.Sc.

Prof. Dr.-Ing. Heidrun Steinmetz

Funding:

BMBF (German Federal Ministry of Education and Research)

Project Partners:

  • Fraunhofer Institute for Solar Energy Systems ISE
  • Flensburg University of Applied Sciences - Center for Sustainable Energy Systems
  • Greenplanet Energy
  • PLANET - Planning Group for Energy and Technology GbR
  • German Hydrogen and Fuel Cell Association e.V.
  • greenventory GmbH

Project description:

According to current scientific findings, the generation of hydrogen by means of electrolysis in the power-to-hydrogen (PtH2) process is a fundamental building block of sector coupling and essential for a successful energy transition. Recently, questions about suitable locations for the construction of PtH2 plants have been increasing in industry and science. The optimal location depends on a multitude of site-dependent influencing factors that need to be taken into account. So far, there is no suitable methodology that shows the potential of sites for the construction of PtH2 plants for hydrogen production and can be applied comprehensively in Germany.

The overall goal of the PoWerD project described here is therefore the creation and publication (open access) of a potential atlas in which optimal locations for PtH2 plants in Germany are presented in a spatially resolved manner. To this end, potentials for the use of the hydrogen produced as well as the additionally produced co-products oxygen and heat will first be surveyed. The focus is on the use of hydrogen in industry and mobility and of the by-products in sewage treatment plants and heating networks, since both are available throughout Germany. A potential for the construction of PtH2 plants can also arise from the need for additional, flexible loads in electricity transmission grids, which is why this is another focus of the potential survey.

On the basis of the surveyed potentials, an evaluation of the data will be carried out using a new potential analysis tool to be developed. Spatially resolved potentials for the construction of electrolysis plants are to be identified and evaluated, which will then be published in a two-stage process in the form of a potential atlas on a project homepage. This potential atlas contains representations in the form of maps showing the potential for the construction of PtH2 plants in Germany in different scenarios / business models. These maps can subsequently be used by companies (e.g. future PtH2 plant operators and installers) to identify suitable plant locations. The potential atlas will be published freely accessible on the Internet (open access) and is intended to accelerate the expansion of electrolysis technology (power-to-hydrogen).

The work of rewa focuses on the following objectives:

  1. data analysis and data revision/updating of "wastewater treatment plant locations"
  2. elaboration of an overview of utilization paths for the co-products of electrolysis on wastewater treatment plants as well as
  3. preparation of corresponding utilization concepts and their evaluation as a basis for a potential assessment
  4. determination of site-specific potentials for the utilization of the by-products
  5. elaboration of case studies

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