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Saving energy in India

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German research results also help save energy in developing countries. Thus KfW Entwicklungsbank is introducing a calculation model from the Fraunhofer Institute for Building Physics in India to evaluate the energy efficiency of residential buildings. Particularly the emerging industrialising countries of India, China or Brazil are experiencing a rapid increase in the consumption of oil, coal and gas, while these countries also have a very high potential for more efficient use of energy.
KfW is making use of these general conditions to transfer the results of German research to India. The model that will be used on the subcontinent is already firmly established in Europe and has contributed to a standardisation of the energy balance for buildings in the EU. The basis is the German industrial standard V 18599, which was realised based on years of research results from the Fraunhofer Institute for Building Physics.

The Institute has also created a corresponding calculation software which calculates the energy demand of buildings, including the savings potential. The software not only analyses the building shell but also takes into consideration air conditioning, heating and lighting. This comprehensive approach makes the model particularly useful when designing new buildings and is compelling when compared to evaluation models that analyse individual measures.

The Fraunhofer calculation tool can be adapted for multipurpose buildings in India. It also offers advantages when compared to complex simulation models: it delivers robust, comparable results and enables easy handling, making it well suited for application as a broad-based promotional programme as well.

The model is now being adapted to the conditions in India in cooperation with "The Energy and Resources Institute" (TERI). KfW Entwicklungsbank is supporting this adaptation process which involves supplementing the German model with specific data from India - such as on facility technologies, building materials or user behaviour. The adapted model will then be used as part of a housing energy efficiency programme. Later the programme is to be expanded and applied to commercial and public multipurpose buildings in the framework of a promotional programme.

Claudia Loy, the Division Chief responsible for this area at KfW, describes the cooperation between the German and Indian research institutes as "promising and forward-looking" because such innovative cooperative arrangements create the foundation for transferring proven promotional programmes, thereby allowing "quantum jumps" in the common fight against climate change. Both the International Energy Agency and the American Government have already drawn on the experiences of the Fraunhofer Institute to calculate the energy balance of buildings. However, bilateral cooperation for transferring energy balance software has thus far not yet existed in this form.