Building of Tomorrow

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Building of Tomorrow

• Hans-Günther Schwarz
• Austrian Federal Ministry of Transport,
  Innovation and Technology
• (based on a presentation by Herbert Greisberger,
• Austrian Society for Environment and Technology,
  ÖGUT)

Hans-Günther SChwarz RDD Programme Building
of Tomorrow, Federal Ministry of Transport,
Innovation and Technology, Austria
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Outline

• Background of building energy technology
• RDD programme Building of Tomorrow (Austria)
• Concept, demonstration sites and outcomes
• Further options and needs in building RD policy

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Energy Efficiency Potential

• Industry
• Economic growth fuels higher demand for goods and
  services
• A need for novel basic processes in energy
  intensive industry
• Transport
• Limited social acceptance for demand measures
• Hydrogen, electric propulsion, bio-fuels
• Buildings
• Passive houses offer higher comfort with low
  energy demand
• Efficient technologies based on renewables
  available
• gt The buildings sector is the most promising
  area for increasing energy efficiency and
  lowering CO2 impact

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Building energy technology - background
construction industry low RD investments

• Low private RD investments in of turnover
• Fragmented industry mostly SME lack of
  innovation
• Energy demand is not a main driver in building
  RD
• Very limited international competition in
  building industry
• Few countries run RD programmes for building
  technologies
• Ongoing RD focuses on incremental improvements
• Nevertheless sustainable building energy
  technologies have been developed in recent years

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RDD Programme Building of Tomorrow state of
the art and aims (1999)
User and ser-vice aspectscomfort, aging,
multifunctional
Low energy solar house
Renewable energy
Building of Tomorrow
Passive house technology
Energy efficiency
Ecological building materials and systems
Building ecology, Re-newable raw materials
Comparable invest-costs
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Aim of Building of Tomorrow an example

• Innovative residential, offices, commercial
  buildings
• considerable reduction of energy material
  consumption
• substantial use of renewable sources of energy
  and renewable and ecologically sound materials
• taking into account social aspects and cost
  efficiency
• high market potential
• Building of Tomorrow is a mission-oriented
  top-down programme covering basic research,
  applied research and demonstration projects
• Competitive calls and international evaluation of
  proposals implemented to secure quality of RD

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Research Strategy Building of Tomorrow basic
research, applied research and demonstration
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The outcome With regard to markets

• rapid increase in passive houses since 2000
• share of passive houses on all new buildings 4
  (2006) from almost zero in 2000
• by end of 2006 around 4,000 residential units
  (RE) with 10,000 passive house residents
• by end of 2007 more than 2000 buildings will have
  been built in Austria in passive house standard
• Increasing demand for multi-family buildings
• Vienna multi-family passive houses with 715 RE
  and 60,300 m² of useful floor area
• source passive-house building database, 463
  buildings documented (10/2006) www.HAUSderZukunft.
  at

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Next Steps technologies to significantly reduce
CO2-emissions

• Demonstration sites will be evaluated
• The results of the programme have been taken up
  by the programme klimaaktiv buildings the
  programme aims at
• 20 of sustainable buildings in 2009
• 25 of ventilation systems instead of
  conventional heating system
• New RD programme building in 2050
• Focus on renovation
• Design of a new generation of buildings
• Increased effort of the industry to boost
  investments in RD

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Lessons Learned Based on the experience of
European programmes

• Energy efficiency a reduction of CO2-emissions
  is possible
• For all climates and building materials
• At comparable investment costs and lower energy
  costs
• With high social acceptance through increase of
  comfort
• RD in building technologies
• Need of continuous public support
• Are the basis for sustainable markets in the
  building sector

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Future Options (I) For building technology
policy

• Target oriented RD activities must be
  intensified
• Novel building concepts
• Including socio-economic research (esp. in
  renovation)
• Target oriented development of components and
  know-how
• High efficient building technologies must be
  adopted to climes and local resources
• International cooperation in RD needs to be
  intensified
• Various instruments are needed to overcome
  barriers to innovation in the construction
  industry

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Future Options (II) Future research needs

• Next generation new buildings which generate
  energy
• Building integrated PV modules and thermal solar
  technologies
• Microturbines (10-500 kW) based on biomass, solar
  cooling
• Integration into the electricity system
• Rethink the energy system based on sustainable
  buildings
• no need for district heating in new construction
  areas
• new approaches for the construction industry
• big buildings (sky scrapers) in passive house
  standard
• Renovation of the existing building stock based
  on factor 10 concepts and technologies
• gt RD in building technologies has to play a
  vital role in any sustainable energy system

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CATEGORIES and EXAMPLES

• Basic research on socio-economic issues
• Analyses of user behaviour
• Analyses of acceptance of ecological energy
  efficient buildings
• Opportunities and barriers of innovative
  buildings or technologies in context with market
  diffusion
• Pro and contra aspects of IT in buildings
  (monitoring systems)
• Accompanying measures
• Strengthen the ecological aspects
• Consultancy desk for planners and architects for
  the use of ecological materials

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CATEGORIES and EXAMPLES

• Applied research, technologies components
• Strengthen the scientific basis
• Development or improvement of new technologies
  components
• Topics
• Innovative systems for solar heating of buildings
  and district heating
• Efficient solar technologies and their
  multifunctional and esthetical integration into
  buildings
• Innovative components (e.g. heat storage,
  windows, solar cooling)
• Innovative components and elements on basis of
  renewable materials

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Category Applied research, technologies
components
Example Solid wood passive-house-window
U-value (window) 0,78 W/m²K
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Category Applied research, technologies
components
Example Facade-integrated solar collector for
water and space heating
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CATEGORIES and EXAMPLES

• Innovative building concepts demonstration
  objects
• Planning and realising energy-efficient and
  ecological buildings
• Integration of results from the basic studies and
  technologies components
• Innovative solutions will be realised
• Criteria
• Cost efficiency
• 50 use of renewable energy sources (solar
  energy, biomass, etc.)
• Reduction of the total final energy demand
  required for heating, warm water and electrical
  household appliances to 42 kWh/m²a
• High comfort for inhabitants
• Increasing use of ecological or renewable
  materials (straw, loam, cork, ...)

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Building of Tomorrow demonstration sitesSolar
City Linz Apartment complex

• Passive house standard for a multi family house
  complex
• Use of new components and
• Ecological materials
• Consideration of
• Cost efficiency and
• Acceptance by inhabitants

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Categories
Category Office and Commercial Buildings
Example Straw house in passive house standard

• Office exhibition building
• Wall system wood construction insulation
  material straw bale
• Solar cooling system

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ZIEL
Category Demonstration buildings
Example Ecological alpine refuge hut, eastern
part of the alps, Hochschwab area, Styria (2153
m)

• Autarkic building maintenance
• Collection of rain water from roof
• Warm water/flat thermal collectors integrated
  in the façade
• Electricity generated by 70m² of façade
  integrated photovoltaic panels

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Further information, reports and data
www.HAUSderzukunft.at
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• Hans-Günther Schwarz
• Energy- and Environmental Technologies
• Austrian Federal Ministry of Transport,
  Innovation and Technology
• Tel. [phone]
• E-Mail hans-guenther.schwarz_at_bmvit.gv.at