107345 20230519145500.0 doi 10.1016/j.rser.2021.111382 sideral 124552 ART-2021-124552 eng Pina, Eduardo Antonio (orcid)0000-0001-8350-6485 Assessing the influence of legal constraints on the integration of renewable energy technologies in polygeneration systems for buildings 2021 Access copy available to the general public Unrestricted Hybrid polygeneration systems offer a great opportunity to meet growing energy demands with cost efficiency and environmental benefits. The identification of the optimal solution (configuration and operational strategy) is strongly affected by the relationship between the system and its surroundings. Previous studies have analyzed the influence of boundary conditions on the synthesis of polygeneration systems for buildings. However, local regulations are often disregarded or oversimplified in those studies. Therefore, this paper aims to evaluate the influence of legal conditions on the integration of renewable energy technologies in polygeneration systems for buildings. A comprehensive synthesis model is developed, including different types of legal conditions, such as power exchange modalities, subsidies/surcharges on energy prices and investment costs, and total ban on fossil fuels. Then, the model is applied to the case study of a Brazilian hospital. The current Brazilian net metering scheme is implemented. Results show that natural gas cogeneration is an attractive solution to cover the hospital's energy demands with or without the possibility of selling/exporting electricity. Also, the Brazilian net metering scheme, by itself, is not enough to ensure renewable energy deployment. An in-depth discussion about the conditions that would promote renewable energy integration is reported and recommendations are made on how current policies can be improved, including the need to explicitly address renewable technologies, the application of minimum renewable fractions, and the role of renewable heat/cooling. While the case study considers the specific circumstances in Brazil, it provides insights that can be extended to other countries or applications. info:eu-repo/grantAgreement/ES/DGA/T55-17R info:eu-repo/grantAgreement/ES/MINECO/ENE2017-87711-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 16.799 2021 ENERGY & FUELS 8 / 119 = 0.067 2021 Q1 T1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 1 / 47 = 0.021 2021 Q1 T1 3.678 2021 Renewable Energy, Sustainability and the Environment 2021 Q1 28.5 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Lozano, Miguel Ángel Universidad de Zaragoza (orcid)0000-0002-4411-9834 Serra, Luis María Universidad de Zaragoza (orcid)0000-0002-5161-7209 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 149 (2021), 111382 [20 pp.] Renew. sustain. energy rev. RENEWABLE & SUSTAINABLE ENERGY REVIEWS 1364-0321 939530 http://zaguan.unizar.es/record/107345/files/texto_completo.pdf Postprint 2225481 http://zaguan.unizar.es/record/107345/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:107345 articulos driver 2023-05-18-14:56:10 ARTICLE