Actual heating energy savings in thermally renovated Dutch dwellings

Majcen, Daša; Itard, Laure; Visscher, Henk

doi:10.1016/j.enpol.2016.07.015

Cited by 51 publications

(40 citation statements)

References 14 publications

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“…The left most column of the graph depicts the autonomous gas savings when no ESM has been performed, i.e., the savings of the non-renovated stock. This result has been reported previously in literature as well (Majcen et al 2016;Filippidou et al 2016). It is remarkable that in the period of 2010-2014 there has been a reduction of 11 kWh/m 2 /year without any energy renovation taking place.…”

Section: Resultssupporting

confidence: 80%

“…6). This may be due to assumed occupant behavior (including indoor temperature and hours of heating system operation) or wrong predictions of the state of the dwelling before an ESM takes place (Balaras et al 2016;Majcen et al 2016;Galvin 2014). Moreover, Table 7 and Fig.…”

Section: Resultsmentioning

confidence: 99%

“…However, based on outcomes of both the research on the performance gap and on the energy renovations, the impact of these renovations on the actual energy consumption is expected to be significantly different. Previously published research conducted on the social housing stock of the Netherlands on isolated energy renovation measures by Majcen et al (2016) found several discrepancies between the predicted and actual energy savings, of single efficiency measures, ranging from 0.58 (ratio of actual/predicted savings) to 2.5. Filippidou et al (2016) describe the annual frequencies of seven renovation measures in the Netherlands.…”

Section: Energy Renovations and Savingsmentioning

confidence: 99%

“…The patterns of the predicted energy reduction in most cases differ from the actual energy consumption (Balaras et al 2016;Filippidou et al 2016;Majcen et al 2013;Tigchelaar et al 2011). Predicted or modeled energy consumption can differ from the actual consumption by as much as 50% less or 30% more in dwellings (Majcen et al 2016). Previous research (Balaras et al 2016;Majcen et al 2013;SunikkaBlank and Galvin 2012) has highlighted the performance gap-the difference between predicted and actual energy consumption, in different building stocks.…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of energy renovations: a reassessment based on actual consumption savings

2018

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Energy renovations offer unique opportunities to increase the energy efficiency of the built environment and for the existing housing stock; they are the most important solution. Usually, energy savings are based on modeling calculations. However, recent research has shown that the predicted energy consumption differs largely from the actual consumption. In this paper, the effectiveness of energy measures is reassessed based on actual consumption data. We use a monitoring system, which contains information about the energy performance of around 60% of the Dutch non-profit housing sector (circa 1.2 million dwellings). We connect the data from this monitoring system to actual energy consumption data from Statistics Netherlands on a dwelling level. Using longitudinal analysis methods, from 2010 to 2014, we are able to identify the energy efficiency improvements of the stock and determine the effectiveness of different measures in terms of actual energy savings. The results reveal the actual energy savings of different efficiency measures and highlight the significance of the actual energy consumption when a renovation is planned or realized.

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Section: Resultssupporting

confidence: 80%

Section: Resultsmentioning

confidence: 99%

Section: Energy Renovations and Savingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effectiveness of energy renovations: a reassessment based on actual consumption savings

2018

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“…Current lines study the significant energy savings in most weather conditions [4], with respect to traditional mechanical exhaust systems [5], in different urban environments [6], occupancy profiles [7] and the ability to apply this strategy in building retrofits [8]. As for the influence on thermal comfort and indoor air quality, natural ventilation provides thermal control [9], free cooling [10] and contaminant removal benefits [11].…”

Section: Introductionmentioning

confidence: 99%

Methodology Applied to the Evaluation of Natural Ventilation in Residential Building Retrofits: A Case Study

2017

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Abstract:The primary objective of this paper is to present the use of a steady model that is able to qualify and quantify available natural ventilation flows applied to the energy retrofitting of urban residential districts. In terms of air quality, natural ventilation presents more efficient solutions compared to active systems. This method combines numeric simulations, through the utilization of Ansys Fluent R15.0 ® and Engineering Equation Solver EES ® , with on-site pressurization tests. Testing consists of the application of the seasonal pressure gradient on the building's envelope and the calculation of the ventilation flows in three climatic representative conditions (summer, winter, and annual average). Through the implementation of this methodology to existing buildings it is possible to evaluate the influence of the built environment, as well as key parameters (relative height of the dwelling, number of vertical ventilation ducts, and airtightness of windows) of available natural ventilation.

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Improving the Indoor Climate and Energy Saving in Renovated Apartment Buildings in Estonia

Hamburg

Kalamees

2018

Springer Proceedings in Energy

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Actual heating energy savings in thermally renovated Dutch dwellings

Cited by 51 publications

References 14 publications

Effectiveness of energy renovations: a reassessment based on actual consumption savings

Effectiveness of energy renovations: a reassessment based on actual consumption savings

Methodology Applied to the Evaluation of Natural Ventilation in Residential Building Retrofits: A Case Study

Improving the Indoor Climate and Energy Saving in Renovated Apartment Buildings in Estonia

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