Energy storage in the geological subsurface: dimensioning, risk analysis and spatial planning: the ANGUS+ project.

Kabuth, Alina, Dahmke, Andreas, Beyer, Christof, Bilke, Lars, Dethlefsen, Frank, Dietrich, Peter, Duttmann, Rainer, Ebert, Markus, Feeser, Volker, Görke, Uwe-Jens, Köber, Ralf, Rabbel, Wolfgang, Schanz, Tom, Schäfer, Dirk, Würdemann, Hilke and Bauer, Sebastian (2017) Energy storage in the geological subsurface: dimensioning, risk analysis and spatial planning: the ANGUS+ project. Environmental Earth Sciences, 76 (1). DOI 10.1007/s12665-016-6319-5.

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Supplementary data:


New techniques and methods for energy storage are required for the transition to a renewable power supply, termed “Energiewende” in Germany. Energy storage in the geological subsurface provides large potential capacities to bridge temporal gaps between periods of production of solar or wind power and consumer demand and may also help to relieve the power grids. Storage options include storage of synthetic methane, hydrogen or compressed air in salt caverns or porous formations as well as heat storage in porous formations. In the ANGUS+ project, heat and gas storage in porous media and salt caverns and aspects of their use on subsurface spatial planning concepts are investigated. The optimal dimensioning of storage sites, the achievable charging and discharging rates and the effective storage capacity as well as the induced thermal, hydraulic, mechanical, geochemical and microbial effects are studied. The geological structures, the surface energy infrastructure and the governing processes are parameterized, using either literature data or own experimental studies. Numerical modeling tools are developed for the simulation of realistically defined synthetic storage scenarios. The feasible dimensioning of storage applications is assessed in site-specific numerical scenario analyses, and the related spatial extents and time scales of induced effects connected with the respective storage application are quantified. Additionally, geophysical monitoring methods, which allow for a better spatial resolution of the storage operation, induced effects or leakages, are evaluated based on these scenario simulations. Methods for the assessment of such subsurface geological storage sites are thus developed, which account for the spatial extension of the subsurface operation itself as well as its induced effects and the spatial requirements of adequate monitoring methods.

Document Type: Article
Keywords: Geotechnical energy storage, Parameterization, Numerical Simulation, Geophysical Monitoring, 3D spatial Information, Subsurface spatial planning
Research affiliation: Kiel University
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/s12665-016-6319-5
ISSN: 1866-6280
Projects: Future Ocean
Date Deposited: 14 Dec 2017 14:25
Last Modified: 23 Sep 2019 19:58

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