How accurate are Energy Performance Certificates indicated energy savings of building retrofits?
MetadataShow full item record
This item's downloads: 522 (view details)
Moran, P, Hajdukiewicz, M, Goggins, J (2016) How accurate are Energy Performance Certificates indicated energy savings of building retrofits? Civil Engineering Research in Ireland Conference (CERI 2016) Galway, Ireland, 29/08/2016- 30/08/2016
With the impending nearly zero energy building (NZEB) regulations for residential new builds and retrofits for the European Union (EU) housing stock and the percentage of new buildings relative to existing buildings is increasing at a rate of only 1% per year, retrofitting is recognised as the most immediate, pressing and cost effective mechanism to reduce energy consumption and carbon emissions in the building and construction sector. Currently, an Irish residential building Energy Performance Certificates (EPC) indicates the estimation of a buildings’ annual energy usage that is assessed by the Dwelling Energy Assessment Procedure (DEAP). DEAP is the standard method for assessing the energy savings that are made by a residential building through retrofitting its technical characteristics to greater energy efficiency standards. This paper presents the pre-retrofit DEAP results of a sample set of urban social houses in Ireland and compares them to the actual energy usage of the houses highlighting the limitations of DEAP in estimating the pre-retrofit energy usage of the sample set of urban social housing. As many Irish government policies promoting the uptake in residential buildings base their energy savings on DEAP, the need for a more robust assessment procedure for determining the impacts retrofitting a building to a higher energy standard is discussed in addition to the need for engineers to start understanding the behaviour and attitudes towards energy consumption of the people living inside them in order to develop a holistic retrofit design that incorporates both technical and behavioural interventions.
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. Please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Super-insulate or use renewable technology? Life cycle cost, energy and global warming potential analysis of nearly zero energy buildings (NZEB) in a temperate oceanic climate Moran, Paul; Goggins, Jamie; Hajdukiewicz, Magdalena (Elsevier, 2017-01-13)There are numerous strategies available to design and construct a low energy or nearly zero energy building (NZEB). However, the design strategy for a building depends on a high number of factors including location, climate, ...
Mobilising IS to support the diffusion of energy management practices outside of Ireland¿s LIEN (Large Industry Energy Network) Costello, Gabriel (Association Information et Management, 2010-05)Ireland is under increasing pressure to reduce energy consumption to meet carbon emission targets and protect an economy that is almost totally dependant on imported energy. The implementation of no cost and low cost ...
Lifecycle environmental and economic performance of nearly zero energy buildings (NZEB) in Ireland Goggins, Jamie; Moran, Paul; Armstrong, Alan; Hajdukiewicz, Magdalena (Elsevier, 2016-01-16)Directives in the European Union are ensuring that buildings in this region are moving towards nearly zero energy buildings (NZEB). For countries like Ireland, which has a temperate oceanic climate, a key to achieving NZEB ...