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Energy-Optimised Building- Experience and Future Perspectives from a Demonstration Programme in Germany
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In 1995, the German Federal Ministry of Economics and Technology launched an intensive research and demonstration programme on energy-optimised construction of new buildings as well as retrofitting the building stock. Beside research on materials and components, approximately 50 demonstration buildings covering various building typologies have been realized and monitored within the programme (www.enob.info). Accompanying research was conducted to systemise the results and lessons learned. The programme led to a set of prominent research results in the fields of e.g. daylighting, passive cooling, energy efficiency and renewable energy use in commercial buildings, user behaviour and user satisfaction. Many of the demonstration projects have reached energy savings of 50% and more compared to current practice in Germany, without exceeding conventional investment costs. A number of these projects have been awarded architectural prizes. This paper summarises key findings and explains the strategies for new projects on the route toward net zero-energy buildings. These strategies are based on a further decrease in energy demand and increased renewable energy utilization in conjunction with intensified use of building-integrated power generation interacting with the public grid.
Hans, O.; Voss, K.; Wagner, A.; Gossner, H.; Grunewald, J.; Petzold, H.; Herkel, S.; Pfafferott, J.; Lehmann, D.; Neumann, C. (2008). Energy-Optimised Building- Experience and Future Perspectives from a Demonstration Programme in Germany. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from