Search results for "Energy certification"

Old or new occupants of energy rehabilitated buildings. Two different approaches for hierarchizing group of buildings

2017

Abstract Public Administrations are frequently entitled to intervene in building stocks with energy rehabilitation actions. Unfortunately, the monetary budget at their disposal is generally limited and, consequently, a prioritization criterion is needed to optimize its allocation. The classification of the building energy performance is increasingly used by Public Administrations for this purpose. Here we argue that a proper prioritization criterion should depend upon the potential subjects to which the rehabilitated buildings are given back. If the energy rehabilitation is conducted on buildings that will be assigned to new dwellers, it would be preferable to use the energy class – which i…

Energy certification of buildings: A comparative analysis of progress towards implementation in European countries

2010

Abstract The Energy Performance Building Directive (Directive 2002/91/EC) introduced the compulsory energy certification of buildings in the EU from 2006 and it has played a key role in the common policy to monitor and reduce energy consumption. In order to assess the experience gained in this field in Europe overall, and in particular against the highly diverse settings of the different European nations, this paper examines the extent to which the Directive has been implemented by the 27 EU Member States. This is done via a comparative analysis assisted by two different indicators: of uniformity and of excellence. The measure of uniformity makes it possible to assess the degree of harmony …

A Possible Approach to Take into Account the Presence of Green Roofs in the Energy Certification of Buildings

2011

The energy certification of buidings through the dynamic simulation of variable consumption

2008

The problem of energy quality control in buildings was officially recognised for the first time at a European level in the EEC directive no. 93/76 of 1993. This directive represented the formal act of an undertaking to promote actions that would lead to a reduction in global carbon dioxide (CO2)emissions. Article 2 of this directive established that states should carry out programmes concerning the energy certification of buildings, which were consistent in the description of their energy parameters, so as to allow future users of a building to know and understand its energy efficiency. Italy acknowledged this directive, along with the subsequent European directive 2002/91/CE on energy effi…

Asset rating: Disagreement between the results obtained from software for energy certification

2009

The general practice for establishing the consumption in asset ratings of a building consists of entrusting the energy analysis of the shell of a building to calculating software. The building is the subject of an extremely complicated analysis, and there are many variables at stake, is it more correct to aim for a simplification of the problem, in the knowledge that behind every analytical formula there is the possibility of an evaluation error, or is it better to aim for calculation models that are more and more detailed in an attempt to succeed in predicting the real energy behaviour of the building ? Depending on the objective that has been set, it is a good idea to identify the tool be…