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Research ESRIG - Energy and Sustainability Research Institute Groningen Events

ESRIG-EES colloquium: Max Cosijn and Joachim Kooijinga, MSc EES students

When:Tu 23-04-2019 16:00 - 17:00
Where:5159.0110, Energy Academy, Nijenborgh 6

Title: (Mobile) thermal energy storage.

By: Max Cosijn, MSc EES student.

Thermal energy supply is nowadays still dominated by natural gas. The reduction of gas supply from the Groningen gas field increases the demand for alternative heat sources such as geothermal energy and use of (waste) heat from the industry. District heating networks are often very expensive and not very flexible. An alternative for pipelines is the use of heat containers. The container is charged at the heat source and can be transported to any location where the heat might be required at any given moment in time. (Mobile) thermal energy storage is investigated during a 3,5 month internship at Royal HaskoningDHV in Groningen. Heat storage is investigated in combination with two case studies. Firstly, the reuse of depleated gas wells by transformation to single well borehole heat exchangers called STEP (Sustainable Transformed Energy Plant). The second case study is about buffering thermal energy during a batch process at Morssinkhof SSP in Emmen. This presentation will cover the technical requirements as well as the financial aspects of both case studies.

Title: Large-scale electricity storage using Power-to-gas.

By: Joachim Kooijinga, MSc EES student.

The transition towards a renewable power system creates the need for large scale flexibility and storage. In this study it is investigated whether power to gas can be a solution. In literature, the subsequent conversion of hydrogen to ammonia or methane is suggested as an efficient storage method. In the first part of this research, the possibilities for a future fully renewable power system in the Netherlands are explored and it is investigated what the consequences are for the balance between demand and supply. The second part of this research is a comparison study between the energy storage systems based on power to gas with the three energy carriers hydrogen, ammonia and methane. These systems are compared on energetic efficiency, economics and technical feasibility.