000170114 001__ 170114
000170114 005__ 20260318155254.0
000170114 0247_ $$2doi$$a10.1016/j.ref.2026.100839
000170114 0248_ $$2sideral$$a148653
000170114 037__ $$aART-2026-148653
000170114 041__ $$aeng
000170114 100__ $$0(orcid)0000-0002-1968-6300$$aNaval, Natalia$$uUniversidad de Zaragoza
000170114 245__ $$aOptimal multi-stack scheduling strategy for large-scale electrolysis: Integration with renewable energy and multi-market electricity
000170114 260__ $$c2026
000170114 5060_ $$aAccess copy available to the general public$$fUnrestricted
000170114 5203_ $$aThe production of renewable hydrogen through the electrolysis of water has grown with the advancement of renewable energies. Power purchase agreements (PPAs) are essential to ensure a steady and affordable supply of renewable energy at hydrogen production plants, allowing green hydrogen to be truly sustainable and competitive in the energy market. The aim of this paper is to propose an optimal hourly techno-economic dispatch model of a multi-stack hydrogen production system with two PPAs, photovoltaic (on-site) and wind (off-site) to meet hydrogen production in the defined calculation window and minimize operating costs. The model allows purchasing energy in the wholesale market if the PPAs do not meet all the hydrogen demand and selling surpluses when the energy purchased through PPAs exceeds the demand of the electrolysis plant. A mixed-integer nonlinear programming model is formulated to optimize the technical and economic management of the proposed system. The problem is applied to a Spanish case where pioneering projects are being carried out through the provision of PPAs. The increase in wind PPA capacity enables a significant reduction in energy imports from the grid, with decreases ranging from roughly 50% to 80% and a higher profitability. It is essential to achieve a balanced wind-solar mix to ensure efficient electrolysis demand coverage and reduce export losses.
000170114 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000170114 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000170114 700__ $$aMartinez Alonso, Ander
000170114 700__ $$aMatute, Guillermo
000170114 700__ $$0(orcid)0000-0003-3174-9703$$aYusta, Jose M.$$uUniversidad de Zaragoza
000170114 7102_ $$15009$$2535$$aUniversidad de Zaragoza$$bDpto. Ingeniería Eléctrica$$cÁrea Ingeniería Eléctrica
000170114 773__ $$g58 (2026), 100839 [12 pp.]$$tRenewable Energy Focus$$x1878-0229
000170114 8564_ $$s3998323$$uhttps://zaguan.unizar.es/record/170114/files/texto_completo.pdf$$yVersión publicada
000170114 8564_ $$s2441637$$uhttps://zaguan.unizar.es/record/170114/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000170114 909CO $$ooai:zaguan.unizar.es:170114$$particulos$$pdriver
000170114 951__ $$a2026-03-18-13:52:36
000170114 980__ $$aARTICLE