Buildings with maximum energy efficiency and integrated renewable energy exploitation

01.12.2009 - 30.11.2011
Research funding project
Energy supply services for buildings (inclucding households and companies) are largely responsible for the primary energy consumption in Austria. Because the supply is mainly based on fossil energy sources, a high import dependence and a curical security of energy supply linked with it are given. In addition, fossil energy sources cause immense greenhouse gas emissions during production process of components and the building operations, briefly about the whole life cycle. Under the background of these aspects, from ecological and macroeconomic view, a sustainable and secure supply of renewable energy sources and energy-efficient system solutions are aimed as objective. The conception of energy-efficient components of the mantle with integrated renewable "energy production" is the prior step and central beginning point to the creation of a sustainable energy system with a clear rise of energy efficiency, reduction of greenhouse gas emissions and improvement of security of supply by use of renewable energy sources locally available. The long-term vision which is a matter to reach is a building sector that comes from an energy consumer to a supplier of energy and this corresponds to the innovative concept of a "plus energy building". Detailed scientific analysis take this reason to the present project concerning technical, economical and ecological aspects to the implementing of a ¿plus energy building¿ standard as well as required political measures to control of this process. This requires an integral perception of the whole house as a system which includes comprehensive aspects from design, planning and creation of buildings as well as building components. This includes polygeneration based on renewable energy sources, thermal energy storage, constructive measures to the minimisation of thermal bridges and long time durability, architectural and spatial planning optimisation strategies in building rehabilitation and in building construction, analysis of the accumulated CO2 emissions for the whole life cycle, the identification of fundamentals to the substitution of electric energy by thermal energy, a socio-economic description of the technology diffusion as well as a final whole optimisation of the collected results concerning relevant aim functions like minimisation of the costs and greenhouse gas emissions and maximisation of the energy yields of the building cover. A sound cover of all fields of investigation within this fundamental study is given by the interdisciplinary straightened composition of the project pool. The central questions of the project are tied together with the objectives for reaching a "plus energy building" standard which can be formulated as follows: The vital aim of the project "Gebäudeintegration (building integration)¿ is to form the building cover ¿ to different criteria for construction and renovation - very energy-efficiently to minimise heat losses with integrated renewable energy supply systems and to consider, besides, ecological (e.g. greenhouse gas minimisation), architectural, spatial planning and socio-economic aspects (e.g. diffusion rates). Recommendations on energy policy and the clear presentation of results for different building types in concrete case studies (dwelling house, office building and factory building) complete the scientific investigations.

People

Project leader

Project personnel

Institute

Grant funds

  • FFG - Österr. Forschungsförderungs- gesellschaft mbH (National) Austrian Research Promotion Agency (FFG)

Research focus

  • Energy Active Buildings, Settlements and Spatial Infrastructures: 100%

Keywords

GermanEnglish
Plus-Energie-Hausplus energy building
Energieeffizienzenergy efficiency
Erneuerbare EnergieträgerRenewable energy sources

External partner

  • Institut für Architektur und Entwerfen
  • GrAT Gruppe zur Förderung der Angepassten Technologie
  • Institut für Energietechnik und Thermodynamik
  • Institut für Hochbau und Technologie

Publications