126819 20241125101142.0 doi 10.3390/en16134909 sideral 134238 ART-2023-134238 eng Tejero-Gómez, Juan A. Universidad de Zaragoza (orcid)0000-0002-3959-6580 Analysis of photovoltaic plants with battery energy storage systems (PV-BESS) for monthly constant power operation 2023 Access copy available to the general public Unrestricted Photovoltaic generation is one of the key technologies in the production of electricity from renewable sources. However, the intermittent nature of solar radiation poses a challenge to effectively integrate this renewable resource into the electrical power system. The price reduction of battery storage systems in the coming years presents an opportunity for their practical combination with utility-scale photovoltaic plants. The integration of properly sized photovoltaic and battery energy storage systems (PV-BESS) for the delivery of constant power not only guarantees high energy availability, but also enables a possible increase in the number of PV installations and the PV penetration. A massive data analysis with long-term simulations is carried out and indicators of energy unavailability of the combined system are identified to assess the reliability of power production. The proposed indicators allow to determine the appropriate sizing of the battery energy storage system for a utility-scale photovoltaic plant in a planning stage, as well as suggest the recommended operating points made for each month through a set of graphs and indicators. The presence of an inflection zone has been observed, beyond which any increase in storage does not generate significant reductions in the unavailability of energy. This critical zone is considered the sweet spot for the size of the storage, beyond which it is not sensible to increase its size. Identifying the critical point is crucial to determining the optimal storage size. The system is capable of providing reliable supply of constant power in monthly periods while ensuring capacity credit levels above 95%, which increases the penetration of this renewable resource. Despite the fact that the study focuses exclusively on the analysis from an energy perspective, it is important to consider the constraints associated to real storage systems and limit their oversizing. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.0 2023 ENERGY & FUELS 108 / 171 = 0.632 2023 Q3 T2 0.651 2023 Engineering (miscellaneous) 2023 Q1 Energy (miscellaneous) 2023 Q2 Energy Engineering and Power Technology 2023 Q2 Renewable Energy, Sustainability and the Environment 2023 Q2 Control and Optimization 2023 Q2 Fuel Technology 2023 Q2 Electrical and Electronic Engineering 2023 Q2 6.2 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Bayod-Rújula, Ángel A. Universidad de Zaragoza (orcid)0000-0002-1704-1584 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 5009 X Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Técnica. Lab. y Talleres 16, 13 (2023), 4909 [22 pp.] ENERGIES Energies 1996-1073 3556308 http://zaguan.unizar.es/record/126819/files/texto_completo.pdf Versión publicada 2711772 http://zaguan.unizar.es/record/126819/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126819 articulos driver 2024-11-22-12:03:08 ARTICLE