78252 20201130083155.0 doi 10.1016/j.energy.2017.11.069 sideral 103497 ART-2018-103497 eng (orcid)0000-0002-9174-9820 Bailera, M. Universidad de Zaragoza Energy storage in Spain: Forecasting electricity excess and assessment of power-to-gas potential up to 2050 2018 Access copy available to the general public Unrestricted Innovative technologies and strategies to decarbonize electricity generation, transport, and heat supply sector are key factors to achieve the global climate targets set by international organizations. One of these strategies implies a significant increase of the share of renewable electricity in the energy mix. Given the intermittent behaviour of renewable energy sources (RES), a detailed assessment of future energy scenarios is required to estimate the potential surplus in electricity production. To facilitate the penetration of renewable energy sources up to significant shares, massive long-term electricity storage technologies must be considered. Among these technologies, power-to-gas (PtG) systems may foster the fossil fuels switch by providing storage of surplus renewable electricity in the form of hydrogen or synthetic natural gas. Thus, this energy carrier could be reconverted to electrical power to cover peak demand periods. In this work, a study of the prospective Spanish scenario is presented and the potential of PtG technology is assessed in terms of expected renewable surplus. We found that the annual electricity surplus for 2050 might vary between 1.4 TWh and 13.5 TWh, and the required PtG capacity would be in the range 7.0–19.5 GW, depending on the renewable production pattern and the increment of demand. info:eu-repo/grantAgreement/ES/DGA/FSE info:eu-repo/grantAgreement/ES/MEC/CAS16-00065 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.537 2018 THERMODYNAMICS 3 / 60 = 0.05 2018 Q1 T1 ENERGY & FUELS 15 / 103 = 0.146 2018 Q1 T1 2.048 2018 Building and Construction 2018 Q1 Civil and Structural Engineering 2018 Q1 Electrical and Electronic Engineering 2018 Q1 Pollution 2018 Q1 Industrial and Manufacturing Engineering 2018 Q1 Mechanical Engineering 2018 Q1 Energy (miscellaneous) 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-2306-6729 Lisbona, P. Universidad de Zaragoza 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 143 (2018), 900-910 Energy Energy 0360-5442 1597980 http://zaguan.unizar.es/record/78252/files/texto_completo.pdf Postprint 40654 http://zaguan.unizar.es/record/78252/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:78252 articulos driver 2020-11-30-07:57:29 ARTICLE