84217 20210104111914.0 doi 10.1016/j.ijhydene.2018.09.131 sideral 108584 ART-2018-108584 eng (orcid)0000-0002-9174-9820 Bailera, M. Universidad de Zaragoza Techno-economic feasibility of power to gas–oxy-fuel boiler hybrid system under uncertainty 2018 Access copy available to the general public Unrestricted One of the main challenges associated with utilisation of the renewable energy is the need for energy storage to handle its intermittent nature. Power-to-Gas (PtG) represents a promising option to foster the conversion of renewable electricity into energy carriers that may attend electrical, thermal, or mechanical needs on-demand. This work aimed to incorporate a stochastic approach (Artificial Neural Network combined with Monte Carlo simulations) into the thermodynamic and economic analysis of the PtG process hybridized with an oxy-fuel boiler (modelled in Aspen Plus®). Such approach generated probability density curves for the key techno-economic performance indicators of the PtG process. Results showed that the mean utilisation of electricity from RES, accounting for the chemical energy in SNG and heat from methanators, reached 62.6%. Besides, the probability that the discounted cash flow is positive was estimated to be only 13.4%, under the set of conditions considered in the work. This work also showed that in order to make the mean net present value positive, subsidies of 68 €/MWelh are required (with respect to the electricity consumed by PtG process from RES). This figure is similar to the financial aids received by other technologies in the current economic environment. info:eu-repo/grantAgreement/ES/DGA/FSE info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2016-76850-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.084 2018 CHEMISTRY, PHYSICAL 48 / 148 = 0.324 2018 Q2 T1 ENERGY & FUELS 31 / 103 = 0.301 2018 Q2 T1 ELECTROCHEMISTRY 8 / 26 = 0.308 2018 Q2 T1 1.1 2018 Condensed Matter Physics 2018 Q1 Renewable Energy, Sustainability and the Environment 2018 Q1 Fuel Technology 2018 Q1 Energy Engineering and Power Technology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Hanak, D.P. Lisbona, P. (orcid)0000-0001-7379-6159 Romeo, L.M. Universidad de Zaragoza 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 44, 19 (2018), 9505 - 9516 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 464306 http://zaguan.unizar.es/record/84217/files/texto_completo.pdf Postprint 61111 http://zaguan.unizar.es/record/84217/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:84217 articulos driver 2021-01-04-11:05:44 ARTICLE