Improving policy instruments to better tap into homeowner refurbishment potential: Lessons learned from a case study in Germany

Weiß, Julika; Dunkelberg, Elisa; Vogelpohl, Thomas

doi:10.1016/j.enpol.2012.02.006

Cited by 125 publications

(71 citation statements)

References 15 publications

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“…In the United Kingdom for example it has been estimated that around 75% of dwellings that will exist in 2050 have already been constructed [3]. To achieve energy savings, energy refurbishment of existing houses thus needs to take place [4][5][6]. Energy efficiency interventions can either be 'passive', to improve the building envelope and/or 'active' to improve the building services [5,7].…”

Section: Q3mentioning

confidence: 99%

Energy savings across EU domestic building stock by optimizing hydraulic distribution in domestic space heating systems

Ahern¹,

Norton²

2015

Energy and Buildings

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a b s t r a c tThe objective of this work is to quantify the resultant savings across the EU from the optimization of existing system components in domestic space heating distribution systems to maintain comfort levels. Heat energy savings are shown to range from 1% to 19% depending on dwelling type, age, location and initial specific heat energy consumption. Total potential savings across the sector amount 22.6 Mtoe, a reduction of 7.3%; 53% of these from a reduction in pumping power required by heating distribution systems and 47% of these from a reduction in the heat energy consumed by heating systems. The carbon abatement potential is estimated to be 496 million tonnes of CO 2 equivalent. Regulatory changes to the domestic replacement and maintenance industry are required for these low-cost, high impact and highly applicable energy saving measures to be adopted more extensively.

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Section: Q3mentioning

confidence: 99%

Energy savings across EU domestic building stock by optimizing hydraulic distribution in domestic space heating systems

Ahern¹,

Norton²

2015

Energy and Buildings

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“…Addressing this challenging typology presents an opportunity to deliver significant carbon reductions and increased occupant thermal comfort from improved building fabric performance [22,23]. However, this carbon reduction challenge is intensified by the underperformance of many interventions [24][25][26][27] and the low rate of refurbishment [28][29][30]. Just four percent of solid walls in the UK's pre-1919 properties are insulated [31] and it is unknown how many pre-1919 ground floors are insulated.…”

Section: Introductionmentioning

confidence: 99%

Heat-flow variability of suspended timber ground floors: Implications for in-situ heat-flux measuring

Pelsmakers

Fitton

Biddulph

et al. 2017

Energy and Buildings

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Reducing space heating energy demand supports the UK's legislated carbon emission reduction targets and requires the effective characterisation of the UK's existing housing stock to facilitate retrofitting decisionmaking. Approximately 6.6 million UK dwellings pre-date 1919 and are predominantly of suspended timber ground floor construction, the thermal performance of which has not been extensively investigated. This paper examines suspended timber ground floor heat-flow by presenting high resolution in-situ heat-flux measurements undertaken in a case study house at 15 point locations on the floor. The results highlight significant variability in observed heat-flow: point U-values range from 0.56 ±0.05 to 1.18 ±0.11 Wm -2 K -1 .This highlights that observing only a few measurements is unlikely to be representative of the whole floor heat-flow and the extrapolation from such point values to whole floor U-value estimates could lead to its over-or under-estimation. Floor U-value models appear to underestimate the actual measured floor U-value in this case study. This paper highlights the care with which in-situ heat-flux measuring must be undertaken to enable comparison with models, literature and between studies and the findings support the unique, highresolution in-situ monitoring methodology used in this study for further research in this area.

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“…Such free-rider effects have repeatedly been identified and help to understand the low impact of existing regulation (Schäfer et. al., 2000;Koeppel, Ürge-Vorsatz, 2007;Weiss et. al., 2012).…”

Section: Discussionmentioning

confidence: 99%

German Energiewende and the Heating Market - Impact and Limits of Policy

Bauermann

2013

SSRN Journal

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Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in AbstractThe German Energiewende envisages achieving a climate-neutral building stock in 2050 by means of two major pillars of regulation: First, residential buildings should consume 80% less primary energy and, second, the remaining energy demand should be covered primarily with renewables. This paper simulates the future heating market in Germany under different policy scenarios in order to evaluate the impact and limits of recent and conceivable heating market policy. The investigation is based upon a dual model approach, linking a residential heating model to a discrete choice model for the heating system purchase decision. The major finding is that current ‚regulations will not be suitable for meeting government targets. Carbon emission reductions in scenarios assuming current regulation nearly equal those where there is no regulation. In terms of economic efficiency, all calculated policy alternatives perform better than the regulation currently in place. The model results highlight two policy implications. First, rising renewable requirements deliver better results at lower costs. Second, renewable obligations for heating systems must include the existing building stock in order to achieve the postulated political targets.

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Improving policy instruments to better tap into homeowner refurbishment potential: Lessons learned from a case study in Germany

Cited by 125 publications

References 15 publications

Energy savings across EU domestic building stock by optimizing hydraulic distribution in domestic space heating systems

Energy savings across EU domestic building stock by optimizing hydraulic distribution in domestic space heating systems

Heat-flow variability of suspended timber ground floors: Implications for in-situ heat-flux measuring

German Energiewende and the Heating Market - Impact and Limits of Policy

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