Articles | Volume 54
https://doi.org/10.5194/adgeo-54-173-2020
https://doi.org/10.5194/adgeo-54-173-2020
03 Dec 2020
 | 03 Dec 2020

Geological storage capacity for green excess energy readily available in Germany

Michael Kühn, Natalie C. Nakaten, and Thomas Kempka

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Cited articles

acatech: CCU and CCS – Building Blocks for Climate Protection in Industry, Analysis, Options and Recommendations, National Academy of Science and Engineering, acatech Position Paper, available at: available at: https://en.acatech.de/publication/ (last access: 10 November 2020), 2018. 
DVGW: Technoökonomische Studie von Power-to-Gas-Konzepten Teilprojekte B-D, DVGW Deutscher Verein des Gas- und Wasserfaches e. V. Technisch-wissenschaftlicher Verein, Abschlussbericht DVGW-FKZ G 3/01/12 TP B-D, available at: https://www.dvgw.de/medien/dvgw/forschung/berichte/g3_01_12_tp_b_d.pdf (last access: 10 November 2020), 2014. 
EID Energie Informationsdienst GmbH: Underground Gas Storage in Germany, Erdöl, Erdgas, Kohle, 128, 412–423, https://doi.org/10.19225/191101, 2012. 
EID Energie Informationsdienst GmbH: Underground Gas Storage in Germany, Erdöl, Erdgas, Kohle, 135, 415–420, https://doi.org/10.19225/191101, 2019. 
EPRI: Handbook of Energy Storage for Transmission or Distribution Applications. Electric Power Research Institute EPRI, USA, available at: http://www.w2agz.com/Library/EPRI_Sources (last access: 10 November 2020), 2002. 
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Short summary
Energy supply in Germany is subject to a profound change. The present paper addresses the German potential of storing excess energy from renewable power sources in the geological subsurface. Wind and solar electricity can be transformed into hydrogen, and with carbon dioxide subsequently into methane. The current potential for combined subsurface storage of methane and carbon dioxide allows to store far more than required to date and is estimated to provide the entire coverage in 2050.