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Energy Concept Adviser for Educational Buildings

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The development of a software tool, the Energy Concept Adviser for the retrofit of educational buildings, is regarded as the main result of IEA ECBCS Annex 36. It shall be used by decision makers in administrations. With the help of the internet based, intuitively usable computer program energy-efficient retrofit shall be promoted, occuring retrofit-related problems in schools and other educational buildings solved and a better reliabilty on design and costs in the early planning state shall be possible.
What is the Energy Concept Adviser?
The Energy Concept Adviser (ECA) is an electronic tool assisting in the design of renovations/retrofits focusing on energy savings of educational buildings (schools, university buildings and nursery schools). It will provide a potential list of solutions to specific energy related problems associated with the building shell, lighting or HVAC systems. The ECA contains more that 30 descriptions of exemplary retrofit/renovation projects and provides a wide and varied selection of retrofit technologies and strategies. The ECA will energy rate an existing educational building versus the national average for varied energy sources. Additionally, a calculation tool will provide energy savings and costs for retrofit technologies/strategies selected to be considered for improving the energy efficiency of the educational building.

Who is the target group of the Energy Concept Adviser?

The ECA was developed for educational building decision-makers and their staff, responsible for programming, planning and accomplishing the retrofit/renovation of existing facilities. With the use of the ECA, the energy saving potential within an existing building will be better understood during the development of a retrofit/renovation projects and therefore reduce the energy consumption of an existing building. The decision-makers will be provided with reliable information on conventional and innovative strategies and technologies and thereby gain improved planning reliability.

Who has developed the Energy Concept Adviser?

The Adviser was developed in the framework of the International Energy Agency (IEA) in the project Annex 36 of the Energy Conservation in Buildings and Community Systems Programme. Experts from 9 European countries and the USA brought in their national expertise, case studies and retrofit technologies to promote energy savings in the retrofit/renovation of existing buildings. See also 'Info&Contact'.

How to operate the Energy Concept Adviser?

The user-interface is developed for intuitive use; the information paths shall be recognized intuitively. Additional information in the retrofit concept development part is provided under '?'. The main navigation bars are reached by clicking on the project logo on the upper left side of each page.


The ECA computer program has been developed as a decision support tool for educational buildings. It was prepared under IEA ECBCS programme Annex 36 - 'Retrofitting of Educational Buildings' under the leadership of the Operating Agent Hans Erhorn from the Fraunhofer Institute of Building Physics (IBP), Stuttgart.

Participants were:
Denmark: Cenergia Energy Consultants, DBUR Danish Building and Urban Research
Finnland:  VTT Building and Transport
Germany:  Fraunhofer Institute of Building Physics (IBP), University of Stuttgart IKE, Bremen University of Applied Sciences Dept. of Architecture
Greece:  National Technical University of Athens
Norway:  Norwegian Building Research Institute
Poland:  Poznan University of Technology Institute of Environmental Engineering
UK:  Schools Building & Design Unit Dept. for Education & Employment
USA:  U.S. Department of Energy
The work was funded by the national energy programmes. None of the participation organisations, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, expressed or implied, or assume any legal liability or responsibility for the accuracy, completeness or usefulness of any results or of any information disclosed, or represents that its use would not infringe privately owned rights. The program was prepared with the assistance and participation of representatives from many organizations based on consensus and available information.
This is the first and international version of the ECA. The national experts of the participating countries surveyed the careful development. Still the software could contain bugs. Users should carefully review the results to make sure that they are credible and consistent. If bugs or inconsistencies should occur, please inform your national representative (see information within the ECA).
The ECA is copyrighted under the property of the Operating Agent for the benefit of the participants. It may be reproduced and distributed in the participating countries of the Annex 36 project.

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