Energy Storage in the Subsurface - Key enabler for a reliable future energy system


18 October 2021
Room: E103
Conveners: Joris Koornneef (TNO)
Serge van Gessel (TNO)

Workshop Description

Our future renewable energy system will require flexibility to accommodate the changing patterns of energy production and consumption. Energy storage will play a pivotal role in providing this flexibility by offering balancing services at timescales ranging from seconds and minutes to days, weeks and even seasons. 

While batteries are ideally suited to store and deliver energy with fast response for a short period, they are not capable of storing the large amounts of energy that must be supplemented to secure supply during prolonged periods of several days to more than a week with calm winds and no or little sunshine. 

At this timescale, large-scale storage of energy in the subsurface is currently the only option. Furthermore, it can play a key role in the integration of variable renewable electricity sources (wind, solar) into our energy system by providing a means to shift the use of excess electricity generated at times of oversupply forward in time to periods of deficit, thereby maximizing its utilization. In this way it also facilitates sector coupling, because the large-scale conversion of electricity to alternative energy carriers (e.g. hydrogen), and use of such energy carriers as clean fuel or feedstock in other sectors, requires buffering capacity to secure supply at all times. 

In this workshop, we will examine the crucial role of the subsurface in the transition to a renewables-based energy system, review the current state of play and potential of subsurface energy storage technologies, and discuss the research challenges that must be addressed to advance subsurface energy storage technologies from R&D via demonstration towards application.

Who should attend

Geoscientists and engineers that want to understand how the subsurface can enable the energy transition and what role they can play, E&P service providers that want to expand their business beyond oil & gas, policy makers, energy consultants.




Workshop Programme

09:00Opening
09:05Design of a Future Hydrogen Infrastructure to Supply Electricity and Hydrogen Demand across Europe.
H.Heinrichs (Forschungs-zentrum Jülich)
09:20Large Scale Energy Storage: Possibilities and potential in the geological underground.
J. Koornneef (TNO)
09:35Large Scale Energy Storage: A Dutch perspective on required R&D and innovation.
T. Huijskes* (EBN)
09:50Interactive Panel Discussion with the Audience 
Moderated by S. van Gessel (TNO)
10:20Coffee break
10:40The H2CAST (H2 CAvern Storage Transition) research project: investigating the transition from natural gas to hydrogen storage in salt caverns.
M. Sodmann (STORAG Etzel)
10:55Technology Innovation and New Business Models Applied in a CAES project in Zuidwending, The Netherlands.
K. McGrane* (Corre Energy Storage)
11:10State-of-the-art of High-Temperature Aquifer Thermal Energy Storage (HT-ATES) in The Netherlands.
B. Drijver* (IF Technology)
11:25Interactive Panel Discussion with the Audience
Moderated by J. Koornneef (TNO)
11:55Closure
12:00End of Workshop

*Presenter

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