Zero Energy Building - A review of definitions and calculation methodologies

  • Marszal A
  • Heiselberg P
  • Bourrelle J
 et al. 
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Abstract

The concept of Zero Energy Building (ZEB) has gained wide international attention during last few years and is now seen as the future target for the design of buildings. However, before being fully implemented in the national building codes and international standards, the ZEB concept requires clear and consistent definition and a commonly agreed energy calculation methodology. The most important issues that should be given special attention before developing a new ZEB definition are: (1) the metric of the balance, (2) the balancing period, (3) the type of energy use included in the balance, (4) the type of energy balance, (5) the accepted renewable energy supply options, (6) the connection to the energy infrastructure and (7) the requirements for the energy efficiency, the indoor climate and in case of gird connected ZEB for the building-grid interaction. This paper focuses on the review of the most of the existing ZEB definitions and the various approaches towards possible ZEB calculation methodologies. It presents and discusses possible answers to the abovementioned issues in order to facilitate the development of a consistent ZEB definition and a robust energy calculation methodology. © 2011 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Energy calculation methodologies
  • Net Zero Energy Building
  • ZEB definition
  • Zero Emission Building
  • Zero Energy Building

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