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Nearly Zero-energy and positive-energy buildings: status and trends

Kolokotsa Dionysia, Pignatta, Gloria, Ulpiani Giulia

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URIhttp://purl.tuc.gr/dl/dias/6C37BF92-B78B-4055-A9C4-AD964EE8E898-
Identifierhttps://doi.org/10.1002/9783527833634.ch10-
Identifierhttps://onlinelibrary.wiley.com/doi/10.1002/9783527833634.ch10-
Languageen-
Extent35 pagesen
TitleNearly Zero-energy and positive-energy buildings: status and trendsen
CreatorKolokotsa Dionysiaen
CreatorΚολοκοτσα Διονυσιαel
CreatorPignatta, Gloriaen
CreatorUlpiani Giuliaen
PublisherWileyen
Content SummaryThe building sector is responsible for a significant share of the global energy consumption (almost 40%) and greenhouse gas (GHG) emissions (one-third of the total). Nearly zero-energy building (NZEB) and positive-energy building (PEB) are eco-friendly concepts aimed at reducing energy consumption, GHGs, and energy-related costs with due attention to indoor environmental quality and comfort. To solve the “trilemma” of energy, decarbonization (sustainability), and affordability, several definitions, standards, and policies for high-performance buildings have been developed at the international level. Indeed, the concepts of NZEB and PEB have been highly publicized in the European Union, the UK, and in some US states, among others as a possible strategy to achieve sustainable urban development, although there is no clear universal definition and homogeneous targets. This chapter attempts to answer the following main questions: (i) What are the principles and the definitions of NZEB and PEB? (ii) What is the state of the art of NZEB and PEB?s (iii) What are the main international regulations, roadmaps, and trends for the future of high-performing buildings? Regardless of the particular definition, energy-efficient solutions and renewable energies are critical in curbing the building's energy consumption as well as the total energy intensity, with design-specific impacts on embodied energy and investment costs. The design strategies for high-performance buildings are discussed in this chapter including (i) energy-efficient solutions for building energy conservation, (ii) renewable energy technologies for energy generation, and (iii) building automation and electronic monitoring for energy flexibility and comfort. Critical issues and practical experiences are harmonized to draw strategic lessons and inspirations toward a more sustainable built environment. Notably, a collection of international case studies and research projects dealing with zero-energy buildings or renewable energy communities is reported. This chapter concludes by looking at the envisioned transition from NZEBs to the larger net zero-energy settlements and positive-energy districts (PEDs) scale to take advantage of a greater scalability potential, renewable energy harnessing capacity (sometimes impractical for individual buildings), higher aggregate energy efficiency, and economy of scale. Some important challenges in deploying PEDs will be mentioned, such as regulatory framework, standardization, energy systems integration, citizen participation, education and training, and business and sustainable funding models.en
Type of ItemΚεφάλαιο σε Βιβλίοel
Type of ItemBook Chapteren
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2024-11-05-
Date of Publication2022-
SubjectSustainable built environmenten
SubjectBuilding energy efficiencyen
SubjectRenewable energy systemsen
SubjectDemand response managementen
SubjectBuilding automationen
Bibliographic CitationD. Kolokotsa, G. Pignatta, and G. Ulpiani, “Nearly Zero-energy and positive-energy buildings: status and trends,” in Technologies for Integrated Energy Systems and Networks, Wiley, 2022, pp. 239-273, doi: 10.1002/9783527833634.ch10.en
Book TitleTechnologies for Integrated Energy Systems and Networksen
Book Edition1-
Book Seriesen

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