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A global strategic approach to energy efficiency in the building sector

  • Conventional new buildings in OECD countries with a history of building codes save about 50 % of energy compared to average buildings in the building stock. This improvement, however, is not enough to create a building standard with low lifetime costs nor to reach long-term climate protection targets. Much higher energy savings can already be achieved through proven high-efficiency building concepts bringing net economic benefits among other advantages. A strategic approach to integrated building design is the key to achieving these high-energy savings at low or no extra cost in residential buildings. In our paper we describe the "Easy Efficiency Approach", which can reduce primary energy consumption by 40 to 60 % compared to conventionalConventional new buildings in OECD countries with a history of building codes save about 50 % of energy compared to average buildings in the building stock. This improvement, however, is not enough to create a building standard with low lifetime costs nor to reach long-term climate protection targets. Much higher energy savings can already be achieved through proven high-efficiency building concepts bringing net economic benefits among other advantages. A strategic approach to integrated building design is the key to achieving these high-energy savings at low or no extra cost in residential buildings. In our paper we describe the "Easy Efficiency Approach", which can reduce primary energy consumption by 40 to 60 % compared to conventional new building standards, or by 70% to 80% when compared to the primary energy consumption of the existing building stock, and should be regarded as the minimum. This strategy focuses on low-cost options, mainly passive options. Although it can already significantly reduce energy consumption, this first step will not be sufficient to reach long-term climate protection goals. It is thus necessary to implement and support what we call an "Advanced Efficiency Approach", with savings up to 90% , as compared to new building standards, as soon as possible to avoid lock-in effects. Further improvements, especially through the active use of renewable energies, reduce the net primary energy demand to 0 % and beyond. According to the chosen strategy clearly defined energy performance ranges, with reference to possible savings, for different climate zones worldwide are given. In verifying this approach simulations with BAT (Best Available Technologies) buildings of different types (single family, multi family, high rise) were carried out in close cooperation with project partners. This data has also been verified through an empirical database of built examples both for energy consumption as well their economic soundness.show moreshow less

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Metadaten
Document Type:Conference Object
Author:Christopher Moore, Dietmar Schüwer, Stefan ThomasORCiDGND
URN (citable link):https://nbn-resolving.org/urn:nbn:de:bsz:wup4-opus-49168
Editor(s):Therese Lindström
Publisher:Europ. Council for an Energy Efficient Economy
Place of publication:Stockholm
Year of Publication:2013
Language:English
Source Title (English):Rethink, renew, restart : ECEEE 2013 summer study ; 3-8 June 2013, Belambra Les Criques, Toulon/Hyères, France ; proceedings
First Page:1297
Last Page:1305
Divisions:Zukünftige Energie- und Industriesysteme
Energie-, Verkehrs- und Klimapolitik
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften
Licence:License LogoIn Copyright - Urheberrechtlich geschützt