Energy-demand levels and corresponding residential concept houses and the ...
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Posting Date | 29 June 2012Publication Date | 2010
Country | Pan European
Geographic Coverage | International
Theme | Legislation, regulations, standards, Building envelope (walls, windows,...), Heating, domestic hot water, Air conditioning, cooling, ventilation, air infiltration, Residential buildings, Very low energy buildings, Calculation, simulation
Type of publication | Report
Number pages | 51
Submitted by Riikka Holopainen (VTT)
Source Languages | English
Energy-demand levels and corresponding residential concept houses and the specific challenges of very low-energy houses in colder climates
This report provides the quantitative comparison of the different regulations and criteria
collected and compared qualitatively in NorthPass report “Application of the local
criteria/standards and their differences for very low-energy and low energy houses in the
participating countries”. The compiled design rules have been merged together with different
approaches to meet very low energy consumption according to different criteria. The focus
was in the space heating demand. Nevertheless, also total energy use was calculated and
compared when relevant for the different regulations and criteria. The analysis in this report is
based on comparative calculations with as uniform input as possible for the different
calculation tools.
The comparison of the level of energy requirements of single North European countries’
building regulations as well as comparison of the level of energy requirements in the different
criteria for very low-energy buildings shows that there are very big differences between the
energy requirements of the single countries with about a factor 5 between the tightest and
loosest regulations. For very low energy building criteria the difference is much smaller.
The combination of the compiled design guidelines depending on the climatic conditions for
the very low energy buildings in the colder climates and the concrete calculations with
different calculation tools with different assumptions is a good starting point for any further
work for realization of very energy efficient buildings in all Europe. The results of the
calculations presented in this report is condensed in the description of the concept buildings –
optimised buildings which will meet very tight energy requirements in each of the climates
represented.
IEE NorthPass-project aims at overcoming barriers on the very low-energy house markets in cold climate, such as the lack of well-defined concepts adapted to the severe climate conditions, awareness of very low-energy houses, lack of products on the market and customer attitudes.
This report is the final and third NorthPass report concerning definitions and concept buildings. The other two reports are “Application of the local criteria/standards and their differences for very low-energy and low energy houses in the participating countries" and “Principles of low-energy houses applicable in North European countries and their applicability throughout the EU".
In “Application of the local criteria/standards and their differences for very low-energy and low energy houses in the participating countries" information about the existing building regulations and very low energy criteria in use in eight North European countries were collected and compared qualitatively. In “Principles of low-energy houses applicable in North European countries and their applicability throughout the EU", the main principles for very low energy building design were collected and compiled to meet the specific demands given by the lower temperature and less sun radiation in the winter time in the North Europe.
This, and other NorthPass results reports can be uploaded from the project website www.northpass.eu
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