Policy Instruments to Improve Energy Performance of Existing Owner Occupied Dwellings:

The aim of this thesis is to add knowledge to the role and impact of policy instruments in meeting energy performance ambition in the existing owner occupied housing stock. The focus was instruments available in the Netherlands in 2011 and 2012. These instruments represented the ‘on the ground’ efforts to meet climate change targets and many continue to do so today in the same or slightly altered forms.  At international level there is a recognized need to keep global temperatures within the range of 1.5 - 2°C above pre-industrial levels (Carrington, 2016). At European level, the 2020 package contains a series of binding legislation to help the EU meet its more immediate climate and energy targets. 2020 targets include 20% reduction in greenhouse gas emission, 20% of EU energy obtained from renewable sources and 20% improvement in energy efficiency. 2020 targets for the Netherlands are a 20% reduction in greenhouse gas emissions and a 14% increase in energy generation from renewable sources (Vringer et al., 2014).  A raft of policies has been produced over the last number of decades from international to local level to orientate action towards targets. At European level the Energy Performance of Buildings Directive (EPBD) drives efforts at reducing energy among one of the biggest players, the building sector. By requiring a mandatory certificate at the point of sale and rent of buildings and making regulatory demands on existing buildings the EPBD upped the ante of what could be expected from the building sector, but especially the existing dwelling stock.  National governments have already been tackling existing dwellings for decades propelled by the energy crisis and later by climate change policy. Information campaigns, subsidies, energy taxes, energy loans and tailored advice are among the instruments that have been available to homeowners to carry out works on their dwellings to reduce energy consumption. In recent years, the pace of efforts has increased due to, inter alia, the realization that the revolution in energy use that must occur for climate change targets to be met means major changes in the fabric of the existing dwelling stock, dwellings constructed before building regulations demanded high energy performance standards. It is argued that the building sector, in general, and the existing dwelling stock, in particular, can contribute more cost effectively and more significantly in quality and quantity terms than any other sector (Amstalden et al., 2007; Lomas, 2010; Ürge-Vorsatz, et al., 2007). This has provoked calls for new and improved instruments to meet the energy saving potential of existing dwellings. Despite many of the same instruments being used for decades there is little solid information on many crucial dimensions of how instruments operate and on what impact they have. The few evaluations and reviews that do take place are commonly focused on theoretical energy savings and costs and instrument strengths and weaknesses. Instruments commonly appear and disappear without undergoing improvement or change or contributing to policy learning. Many instruments are laden with assumptions about the target group that are never formally or comprehensively proved or debunked. Little theorizing takes place on the type of instruments most suited to the target group. Fundamentally, there is a serious lack of information surrounding the effectiveness of instruments assumed to be making climate change targets a reality. It is the above mentioned information deficits that influenced the objectives and structure of this thesis. Instruments are examined from different angles and viewpoints, from experts, owner occupiers, official evaluations and front-runner countries. Assessment frameworks were developed to tease out how well instruments truly function. Households in receipt of instruments such as the EPC and energy audit were compared to households not in receipt of instruments. Moreover, the complete range of national instruments available at the time of the survey were studied to present a complete picture

Policy Instruments to Improve Energy Performance of Existing Owner Occupied Dwellings

The aim of this thesis is to add knowledge to the role and impact of policy instruments in meeting energy performance ambition in the existing owner occupied housing stock. The focus was instruments available in the Netherlands in 2011 and 2012. These instruments represented the ‘on the ground’ efforts to meet climate change targets and many continue to do so today in the same or slightly altered forms. At international level there is a recognized need to keep global temperatures within the range of 1.5 - 2°C above pre-industrial levels (Carrington, 2016). At European level, the 2020 package contains a series of binding legislation to help the EU meet its more immediate climate and energy targets. 2020 targets include 20% reduction in greenhouse gas emission, 20% of EU energy obtained from renewable sources and 20% improvement in energy efficiency. 2020 targets for the Netherlands are a 20% reduction in greenhouse gas emissions and a 14% increase in energy generation from renewable sources (Vringer et al., 2014). A raft of policies has been produced over the last number of decades from international to local level to orientate action towards targets. At European level the Energy Performance of Buildings Directive (EPBD) drives efforts at reducing energy among one of the biggest players, the building sector. By requiring a mandatory certificate at the point of sale and rent of buildings and making regulatory demands on existing buildings the EPBD upped the ante of what could be expected from the building sector, but especially the existing dwelling stock. National governments have already been tackling existing dwellings for decades propelled by the energy crisis and later by climate change policy. Information campaigns, subsidies, energy taxes, energy loans and tailored advice are among the instruments that have been available to homeowners to carry out works on their dwellings to reduce energy consumption. In recent years, the pace of efforts has increased due to, inter alia, the realization that the revolution in energy use that must occur for climate change targets to be met means major changes in the fabric of the existing dwelling stock, dwellings constructed before building regulations demanded high energy performance standards. It is argued that the building sector, in general, and the existing dwelling stock, in particular, can contribute more cost effectively and more significantly in quality and quantity terms than any other sector (Amstalden et al., 2007; Lomas, 2010; Ürge-Vorsatz, et al., 2007). This has provoked calls for new and improved instruments to meet the energy saving potential of existing dwellings. Despite many of the same instruments being used for decades there is little solid information on many crucial dimensions of how instruments operate and on what impact they have. The few evaluations and reviews that do take place are commonly focused on theoretical energy savings and costs and instrument strengths and weaknesses. Instruments commonly appear and disappear without undergoing improvement or change or contributing to policy learning. Many instruments are laden with assumptions about the target group that are never formally or comprehensively proved or debunked. Little theorizing takes place on the type of instruments most suited to the target group. Fundamentally, there is a serious lack of information surrounding the effectiveness of instruments assumed to be making climate change targets a reality. It is the above mentioned information deficits that influenced the objectives and structure of this thesis. Instruments are examined from different angles and viewpoints, from experts, owner occupiers, official evaluations and front-runner countries. Assessment frameworks were developed to tease out how well instruments truly function. Households in receipt of instruments such as the EPC and energy audit were compared to households not in receipt of instruments. Moreover, the complete range of national instruments available at the time of the survey were studied to present a complete picture. A more detailed description of the methodologies adopted is presented below. Methodology An aim of research was to offer qualified accounts and a deeper analysis of how instruments for energy performance improvement in existing dwellings function. Research components focused on both individual instruments and combinations using a triangulation of methods and sources: expert interviews, a survey and literature review. The first step towards meeting the aim of research was to characterise and assess national instruments in the Netherlands. In the absence of an assessment framework for policy instruments in this domain one was created using elements of the theory based evaluation method and concepts from literature. All national energy performance instruments operating at the time that could influence energy performance improvement for space and water heating in existing dwellings were included in the evaluation. Data was obtained from face to face semi-structured interviews with 19 stakeholders involved in lobbying, designing, implementing and evaluating instruments. Interviewee data was complemented with secondary sources, including; evaluations of the national climate change programme, evaluations of individual instruments, cross country evaluations and European projects in which the Netherlands participated. An online survey of owner-occupiers covering the same instruments as the characterization and assessment of instruments described above was conducted to expand the investigation into instruments. More than 5,000 Dutch owner-occupiers participated in the survey. The survey consisted of 96 questions about energy saving measures adopted within the years preceding the survey. The focus lay on measures that involved significant investment to reduce energy consumed for space and water heating. The questionnaire consisted of multiple choice and open ended questions divided into several categories; the adoption and planned adoption of energy saving measures, energy audits, the EPC, building regulations, the energy tax, financial incentives, information tools and socio-economic and dwelling characteristics. Data on motivations for energy use and perceived influences of instruments was also gathered. The questionnaire was used to meet several objectives. To survey the overall effectiveness of the national instruments available to owner occupiers at that time, to compare owner-occupiers who received an EPC to those who did not along several parameters and to compare owner-occupiers who received an energy audit to those who did not along several parameters. Required sample sizes were calculated on the basis of assumptions and several critical components of the questionnaire that required a set response rate to allow statistical comparison (See Appendix 2). Approximately, 30,000 households from the national EPC/energy audit database were sent a link to the questionnaire. The comparison group was created by sending approximately 16,000 members of the Home Owners Association a link to the questionnaire. Following a reminder, a response rate of 17% was received for the EPC/energy audit database and 10% for the Association of Home Owners database. Both descriptive and statistical analysis was conducted on response data. Descriptive analysis focused on whether householders reported an association between the adoption of energy saving measures and instrument use. Pearson’s chi square tests were used to identify whether an association between adopting measures and instruments could be statistically proven. The final research component consisted of a comparative study of several front-runner countries to gather knowledge and examine the instruments associated with success in meeting climate change targets for existing dwellings. Literature from comparative public policy was used to structure this research component. Denmark, Germany, Sweden and the UK were chosen as front-runner cases. Based on document analysis the instruments considered to dominate action in these front-runner countries were characterised. As with the first research component an evaluation framework was developed and the main instruments were assessed against concepts drawn from literature. Using concepts from literature was an effort to go beyond traditional ‘strength and weakness’ based evaluations by searching for how instruments tackle, or fail to tackle, salient issues in this policy domain. Therefore, ‘effectiveness’ of instruments was interpreted as both the documented results of goal achievement and the extent to which instruments deal with aspects unique to this policy domain. Results from document analysis and instrument assessments based on concepts were verified in phone interviews with national experts. Findings A qualitative evaluation of national instruments Instruments were evaluated using 1) elements from the theory based evaluation method and 2) a set of ‘ideal’ concepts. An overview of the first phase of the evaluation is presented in the table below. Fundamental problems with how instruments were implemented were identified in this phase of the evaluation. Most notable was how the EPC was implemented without an enforcement regime resulting in poor visibility, confusion and lack of confidence in the market distancing the EPC from its original ambitious theory and objectives. Similarly, the Meer met Minder sectoral agreement was associated with financial issues and lack of clarity on responsibilities. Economic incentives were heavily criticised by interviewees and found wanting from evaluations being described as ‘modest’ and ‘highly fragmented’. Meanwhile, the energy tax was unanimously described as revenue raising. Little could be obtained from published sources or expert interviewees on the impact of information tools although some interviewees believed that tools are designed for the already informed. Building regulations were found to lack the innovative dimensions visible within other countries, such as consequential works, though few interviewees saw potential to strengthen this instrument. The second phase of the evaluation examined how instruments functioned compared to normative concepts. Concepts chosen were: Policy instrument combinations Obligating/incentivising balance Long term programme Non-generic Primacy to energy efficiency Whole house/deep retrofit Energy sufficiency (the notion that instruments actually lead to energy use reduction) Elements of some concepts were present but far from pervasive. Instruments were: Typically stand alone instead of operating in combinations Largely short term instead of being embedded in a long term framework Almost entirely incentivising thus lacking the obligating balance suggested from theory Generic thus ignoring the great diversity associated with households Largely bypassing the important role of first securing energy efficiency before implementing other measures (i.e. renewable technologies) Piecemeal in place of whole house Disassociated from an end point of energy use reduction. Some ingredients for a successful strategy for existing dwellings were however present. The Meer met Minder subsidy was the only performance based subsidy in place at the time of research and was associated with positive results. With subsidy amounts linked to rating changes in the EPC/energy audit it also demonstrates a successful coupling of instruments. Furthermore, interviewees, though regretful of how the EPC had been progressing, remained hopeful for a better future for this instrument with scope for different manipulations for example, with links to property taxes

Personal computer use at Navy Field Activities: a productivity study

In the past, corporations justified investment in office automation (OA) by vague claims of increased productivity. Now, managers are reevaluating their productivity measurement systems in an effort to identify productivity gains resulting from OA. The purpose of this thesis is to present a methodology for determining the impact of OA on office productivity. This study examined the productivity of the Standard Automated Contracting System for Federal Agencies (SACONS), in a before/after quasi-experimental design that measured outputs (volume, quality of work), inputs (staff size, grade structure, overtime usage), and by-product social effects (morale, teamwork) using archival data. This framework, developed in a previous SACONS study, is used to analyze the strength of SACONS software. The results of this study were confounded by external events that adversely affected our results. Only the quality of work measure (Procurement Action Lead Time), which was reduced by 13 percent, showed a significant productivity gain. Further study of SACONS is necessary to determine its impact on office productivityhttp://archive.org/details/personalcomputer00murpNAU.S. Navy (U.S.N.) authors

Localisation of gamma-ray interaction points in thick monolithic CeBr3 and LaBr3:Ce scintillators

Localisation of gamma-ray interaction points in monolithic scintillator crystals can simplify the design and improve the performance of a future Compton telescope for gamma-ray astronomy. In this paper we compare the position resolution of three monolithic scintillators: a 28x28x20 mm3 (length x breadth x thickness) LaBr3:Ce crystal, a 25x25x20 mm3 CeBr3 crystal and a 25x25x10 mm3 CeBr3 crystal. Each crystal was encapsulated and coupled to an array of 4x4 silicon photomultipliers through an optical window. The measurements were conducted using 81 keV and 356 keV gamma-rays from a collimated 133Ba source. The 3D position reconstruction of interaction points was performed using artificial neural networks trained with experimental data. Although the position resolution was significantly better for the thinner crystal, the 20 mm thick CeBr3 crystal showed an acceptable resolution of about 5.4 mm FWHM for the x and y coordinates, and 7.8 mm FWHM for the z-coordinate (crystal depth) at 356 keV. These values were obtained from the full position scans of the crystal sides. The position resolution of the LaBr3:Ce crystal was found to be considerably worse, presumably due to the highly diffusive optical in- terface between the crystal and the optical window of the enclosure. The energy resolution (FWHM) measured for 662 keV gamma-rays was 4.0% for LaBr3:Ce and 5.5% for CeBr3. The same crystals equipped with a PMT (Hamamatsu R6322-100) gave an energy resolution of 3.0% and 4.7%, respectively

Des améliorations législatives pour les travailleurs faiblement rémunérés en Irlande

En fin d’année 2022, plusieurs évolutions législatives sont intervenues dans le domaine du travail. Les transformations du monde du travail, provoqué par les avancées technologiques et les conséquences de la pandémie de Covid-19, continuent de façonner les évolutions législatives et les réponses politiques apportées aux questions relatives à l’emploi. Les difficultés économiques, notamment l’augmentation de l’inflation et la crise liée au coût de la vie et du logement, ont poussé partis et re..

Selective β-oxidation of α-sulfanyl amides

A selective β-oxidation of a series of α-sulfanyl amides to the corresponding β-oxo-α-sulfanyl amides is described. This selective efficient oxidation of an unfunctionalised methyl or methylene group occurs under mild conditions, involving three sequential transformations conducted without isolation of the intermediates. Critically neither the sulfur nor the reactive α-CH bond is affected in the overall process

A uniform estimate for an equation with Holderian condition and boundary singularity

We give a blow-up analysis and a compactness result for an equation with Holderian condition and boundary singularity.Comment: arXiv admin note: substantial text overlap with arXiv:1302.0657, arXiv:1309.158