University of Twente Student Theses


Optimizing the large-scale renovation strategy

Dijkstra, J. (2015) Optimizing the large-scale renovation strategy.

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Abstract:The building sector represents a large potential for energy savings and CO2 reductions. This sector (residential and non-residential use) accounts for 30% of the global energy consumption and 25-33% of the CO2-emissions. To limit the CO2-emissions and realize an energy neutral building stock by 2050, a reduction in the energy demand and a transition from fossil fuels to sustainable energy sources is needed in the building sector. This research focuses on the residential building stock. By improving the energy performance of buildings significant steps can be made in order to achieve the climate and energy targets. For new houses this transition is easier to be made. However, the real challenge lies in the renovation of existing houses. At the moment various stakeholders such as home-owners, housing corporations and municipalities struggle to renovate the existing building stock in order to improve the energy performance and reduce the energy consumption. In short, there is a lack of knowledge, building capacity and investments in order to renovate the existing housing stock in a short amount of time. Currently, the renovation pace is too low in order to reach the goals of 2050. Not only do they struggle to increase the renovation pace, reaching the targets also requires a huge investment. On top of that, renovation projects require different skills, experience and knowledge regarding technical, economic and social aspects compared to new construction projects. Although there is a great understanding of existing renovation practices, there is a lack in knowledge and insight in the various aspects which affect this decision making and how an optimal renovation strategy can be established based on this information. Analysing and predicting the energy performance combined with energy savings of existing buildings on a large scale can aid the decision process of large-scale renovation strategies. Models can be of great use by quantifying this needed information. Witteveen+Bos is looking for such a new model that can be used in order to advise stakeholders, such as housing corporations or municipalities. This research tried to provide more insight into these aspects by answering the following research question: How can the large-scale renovation strategy of existing houses be optimized by predicting the energy performance and proposing renovation strategies by using a model, particularly in the Netherlands?
Item Type:Essay (Master)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:43 environmental science
Programme:Environmental and Energy Management MSc (69319)
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