Life cycle assessment of conversion processes for the large-scale underground storage of electricity from renewables in Europe
1 Instituto Costarricense de Electricidad (ICE), Power Plants Engineering – Design department, Costa Rica
2 NEXT ENERGY – EWE Research Centre for Energy Technology at the University of Oldenburg, Carl-von-Ossietzky-Str.15, 26129 Oldenburg, Germany
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Published online: 10 December 2014
This study estimates the total storage capacity for renewable energies in European salt caverns up to the year 2030 in order to deal with the fluctuation of renewable energies. The round-trip efficiencies and the CO2 equivalent direct emissions of the different storage process stages are taken into account. These are transmission, electricity to gas conversion, storage and re-electrification from gas to electricity, of three different energy carriers, namely compressed air, hydrogen and renewable methane.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.