Project H2HET - Start Meeting
On 26 March 2024, the project partners of the H2HET project from Jena, Zwickau and Lutherstadt Eisleben met at the project sponsor Stadtwerke Hettstedt to launch the project and discuss the content and organizational details of project implementation. The STARK project, which is funded by the Federal Ministry for Economic Affairs and Climate Protection, is coordinated by the Regional Society for Education, Research and Competence Development.
The project will examine electricity and heat demand load profiles in the supply area of Stadtwerke Hettstedt together with the project sponsor and the project partners and develop scenarios for the increased use of regional resources to reduce CO2 emissions.
These are examined in numerical simulations over a period of one year and evaluated according to energy, ecological and economic criteria. Implementation processes and funding options are proposed for the preferred variant and examined in advance with the responsible institutions. One focus of the approach to reducing CO2 emissions is the use of mine water from the former copper mine. It flows in the Schlüssel adit under the city area, from the Wiederstedt adit into the receiving water or rests as an aquifer in the mine workings of the former shafts west of the city area.
Excess electricity generated from renewable sources can be used to produce hydrogen by electrolysis, which can then be converted back into electricity in fuel cells or replace fossil fuels in other application technologies.
In this process, hydrogen is an environmentally friendly storage medium with which a high energy storage density can be achieved without energy storage losses. The conversion processes release heat. This can be used in the thermal network for cooling and heating buildings and for heating water.
The production of oxygen using electricity is another possible application of water electrolysis. In addition to the energetic use of hydrogen, e.g. in regional passenger and freight transport or for peak load coverage in combination with solar and wind power plants, the significant effects with regard to the possible use of oxygen in the process are also to be investigated and evaluated.
Key points of the project:
Name
Model project of a thermal-electrical integrated system using local mine water resources to supply heat for heating buildings and to generate H2 for energy storage.
Project sponsor
Stadtwerke Hettstedt
Project coordination
RBFK Regionalgesellschaft für Bildung, Forschung und Kompetenzentwicklung e.V.
Project partner
Ingenieurbüro Jena-GEOS
Research and Transfer Center of the West Saxon University of Applied Sciences Zwickau e.V.
Project volume
approx. 208 T€
Project duration
01/2024 - 12/2024