Title: Cost-optimal analysis and technical comparison between standard and high efficient mono-residential buildings in a warm climate
Citation: ENERGY vol. 83 p. 560-575
Publication Year: 2015
JRC N°: JRC95563
ISSN: 0360-5442
URI: http://www.sciencedirect.com/science/article/pii/S0360544215002170
DOI: 10.1016/j.energy.2015.02.062
Type: Articles in periodicals and books
Abstract: The recast of EU Directive on Energy Performance of Buildings (EPBD) requires nearly zero energy buildings (nZEBs) as the building target from 2018 onwards and the establishment of cost optimal levels of minimum energy performance requirements in buildings. This paper presents the results of the application of a methodology to identify cost optimal levels in new residential buildings located in a warm climate. Mono-residential buildings have been considered as virtual reference buildings in this study. Different energy efficiency measures have been selected for the envelope and the systems. A combination of technical variants has been then applied to the base case in order to obtain several configurations to be compared in terms of primary energy consumption and global costs. The cost optimal solution is identified assessing technical features and energy performance. Standard and high efficiency buildings are analysed to show how the selected configuration allows a decrease in primary energy consumption and CO2 emissions at the lowest cost. Results are useful for comparison with other climates and building types. They also show the feasibility of the methodology to comply with EU requirements and to support the choice of economically efficient nZEBs solutions at the design stage.
JRC Directorate:Energy, Transport and Climate

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