Caetano, NídiaVale, ZitaJorgensen, Bo NorregaardFelgueiras, Carlos2024-07-102024-07-102019Caetano, N., Vale, Z., Jorgensen, B.N., & Felgueiras, C. (2019). Sustainable energy systems. Sspecial issue of Energies journal. MDPI1996-1073http://hdl.handle.net/10400.22/25775This Special Issue, therefore, aims to contribute to the “Sustainable Energy Systems” agenda through advanced scientific and multi-disciplinary knowledge, combined to improve energy security and performance. We therefore invite papers on innovative technical developments, reviews, case studies, analytical, as well as assessments, from different disciplines, which are relevant to “Sustainable Energy Systems”. These include smart grids, renewable energy systems, energy storage systems, life cycle analysis of energy systems, zero energy buildings, electric and hybrid vehicles, financial and economic analysis of energy systems, smart systems, energy management and big data, energy policy, novel energy sources, and renewable-based generation, among others.engEnergy efficiencyEnergy managementRenewable energy systemsother