e-retrofit kit - tool kit for passive house retrofit

Development of an internet-based tool for passive house retrofit für - target group social housing companies. Actualization of tool after test and evaluation in case-studies. dissemination activities in austria.

Short Description




About 75% of the austrian building stock has been erected before 1981. The typical specific heating demand of buildings of this age is around 180 und 250 kWh/m2a, thus not contemporary. As demonstration-projects show, the heating demand can be reduced to 15 to 30 kWh/m2year. In many cases these savings can be achieved in an economically feasible way.

Till now, typical renovations underachieve the saving potentials. If the national saving potentials shall be exploited, two methods should be used:

  • the energetic quality of each renovation should be improved
  • the percentage of renovations should be increased

As the project described uses both methods, it is of high importance in the strategy to reach the kyoto-aims and the aims of the program "haus der Zukunft".

The project e-retrofit kit aims at presenting the knowledge about passive house retrofit to the target group of social housing companies. In this project, projects of a max. specific heating demand are described as "passive house retrofit - phr"

The main activities are:

  • development of an internet based tool that enables social housing companies to identify buildings that are well suitable for phr. This tool includes:
  • presentation of best practice in phr in Europe as result of a status quo analysis
  • presentation of saving potentials, costs and economic feasibility for diffenent building types
  • information about other aspects like funding
  • revision of tool after test and evaluation in regional case studies
  • dissemination activities in Austria
  • feasibility studies for 3 to 4 projects in Austria

The target group of social housing companies take active part in the testing and evaluation of the tool as well as in the feasibility studies.

Dissemination activities will be carried out in western and eastern austria.
The project is co-financed by:

  • European commission Intelligent Energy Executive agency
  • Austrian federal ministery of transport, innovation and technology
  • Austrian Federal Ministery of agriculture, Forestry, Environment and water management

Contact Address


Arch. Dipl.-Ing Martin Ploß


Energieinstitut Vorarlberg

Project- and Cooperationpartners

Faellesbo Amba
Skolegade 62, DK 7400 Herning, Dänemark
Sten Dell Hansen
Tel.: +45 (96) 26 58 58
E-Mail: sdh@ faellesbo.dk

Energy research centre of the Netherlands
Westduinenweg 3, 1755 ZG, Petten, Niederlande
Frans Koene
Tel: +31 (6449) 96 056
E-Mail: koene@ecn.nl

Association de investigacion y cooperacion industrial de andalucia
Escuelas superior de inginerios
Camino de los descubriamentos S/N, 41092 Sevilla, Spanien
Jose Luis Molina
Tel:. +31 (9544) 87 254
E-Mail: jlmolina@tmt.us.es

Parallelwej 2, 2800 Kongens Lyngby, Dänemark
Svend Erik Mikkelsen
Tel: +45 (45) 97 28 21
E-Mail: sem@cowi.dk

Public Institution housing agency BKA
Gedimino Ave. 24, LT-01103 Vilnius, Litauen
Valius Serbents
Tel.: +37 (05) 262 98 53
Mail: v.serbenta@bkagentura.lt


Arch. Dipl.-Ing. Martin Ploß
Stadtstrasse 33, 6850 Dornbirn
Tel.: +43 (5572) 31 202-85
Fax: +43 (5572) 31 202 -4
E-Mail: martin.ploss@energieinstitut.at