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Engler-Bunte-Ring 7
76131 Karlsruhe 

Building number 40.13.I 

Tel: +49(0)721 608-42571
Fax: +49(0)721 608-47770

E-Mail: Secretariat

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Bachelor- and Masterthesis

Current proposals for topics of bachelor- and master thesis you find on the following page.
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  Project summary

Project name:

Integrated High-Temperature Electrolysis and Methanation for Effective Power to Gas Conversion 

Project acronym: HELMETH 
Project duration: 04/2014 - 03/2017 
Financial support by: Fuel Cells and Hydrogen- Joint Undertaking (

The objective of the HELMETH project is the proof of concept of a highly efficient Power-to-Gas (P2G) technology with methane as a chemical storage and by thermally integrating high temperature electrolysis (SOEC technology) with methanation. This thermal integration balancing the exothermal and endothermal processes is an innovation with a high potential for a most energy-efficient storage solution for renewable electricity, without any practical capacity and duration limitation, since it provides SNG (Substitute Natural Gas) as a product, which is fully compatible with the existing pipeline network and storage infrastructure. The realization of the P2G technology as proposed within HELMETH needs several development steps and HELMETH focuses on two main technical and socio-economic objectives, which have to be met in order to show the feasibility of the technology:

  • Elaboration of the conditions / scenarios for an economic feasibility of the P2G process towards methane as chemical storage, without significantly deteriorating the CO2-balance of the renewable electricity.
  • Demonstration of the technical feasibility of a conversion efficiency > 85 % from renewable electricity to methane, which is superior to the efficiency for the generation of hydrogen via conventional water electrolysis.

Within HELMETH the main focus lies in the development of a complete pressurized P2G module consisting of a pressurized steam electrolyser module, which is thermally integrated with an optimized carbon dioxide methanation module. The HELMETH project will prove and demonstrate that:

  • the conversion of renewable electricity into a storable hydrocarbon by high-temperature electrolysis is a feasible option,
  • high temperature electrolysis and methanation can be coupled and thermally integrated towards highest conversion efficiencies by utilizing the process heat of the exothermal methanation reaction in the high temperature electrolysis process.

The main tasks of KIT within HELMETH are:

  • Technical/scientific and administrative co-ordination
  • Process modelling
  • Methanation module development
  • Heat exchangers testing
  • Dissemination and training activities


Here you will find a detailed description (extern) 
Project responsible:
Prof. Dr.-Ing. Dimosthenis Trimis
Prof. Dr.-Ing. Dimosthenis Trimis
Scientific staff: Dipl.-Ing. Manuel Gruber
Dr.-Ing. Stefan Harth