500 research outputs found

    Wastage amidst shortage: Strategies for the mitigation of standby electricity in residential sector in Nigeria

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    Abstract : Due to rising population and the increasing rate of urbanization, residential electricity usage accounts for a large chunk of Nigeria’s electricity consumption. However, little attention is paid to electricity conservation in the country. In response to this, several studies are been tailored to ensure a rapid reduction in energy consumption through various alternatives including energy efficient technologies given the current state of inadequate electricity supply in the country. On this note, this article discusses the significance of standby electricity in Nigeria. The electricity generation and consumption patterns were briefly discussed while the current electricity saving behaviour and practices among the urban dwellers were detailed with a case study analysed. Based on the case study, it was discovered that the mean standby load across the 30 households were estimated at 60 W ranging from 34-144 W. Also, standby consumption accounts for 13-44% of the annual electricity consumption across the households. Finally, the strategies for electricity saving and sustainable consumption, most especially the mitigation of standby electricity were highlighted

    Wastage amidst shortage: Strategies for the mitigation of standby electricity in residential sector in Nigeria.

    Get PDF
    Due to rising population and the increasing rate of urbanization, residential electricity usage accounts for a large chunk of Nigeria’s electricity consumption. However, little attention is paid to electricity conservation in the country. In response to this, several studies are been tailored to ensure a rapid reduction in energy consumption through various alternatives including energy efficient technologies given the current state of inadequate electricity supply in the country. On this note, this article discusses the significance of standby electricity in Nigeria. The electricity generation and consumption patterns were briefly discussed while the current electricity saving behaviour and practices among the urban dwellers were detailed with a case study analysed. Based on the case study, it was discovered that the mean standby load across the 30 households were estimated at 60 W ranging from 34-144 W. Also, standby consumption accounts for 13-44% of the annual electricity consumption across the households. Finally, the strategies for electricity saving and sustainable consumption, most especially the mitigation of standby electricity were highlighted

    Ecodesign and Energy Label for Household Washing machines and washer dryers

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    The European Commission launched in 2014 the revision of the ecodesign and energy-/resource label implementing measures for the product group 'household washing machines and household washer dryers (WM-WD)'. The revision study follows the Commission’s Methodology for the Evaluation of Energy related Products (MEErP) consisting of: Scope definition, standard methods and legislation, Market analysis, Analysis of user behaviour and system aspects, Analysis of technologies, Environmental and economics, Design options and Policy analysis and scenarios The comprehensive analysis of the product group following the steps above will feed as research evidence basis into the revision of the existing Energy Label Regulation (EC) 1060/2010 and the Ecodesign Regulation (EC) 1015/2010 on household washing machines. The research is based on available scientific information and data, uses a life-cycle thinking approach, and has engaged stakeholder experts in order to discuss key issues, and to the extent possible reach consensus on the proposals.JRC.B.5-Circular Economy and Industrial Leadershi

    Ecodesign and Energy Label for Household Dishwashers

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    European Commission launched in 2014 the revision of the ecodesign and energy-/resource label implementing measures for the product group 'household dishwashers (DW)'. The revision study follows the Commission’s Methodology for the Evaluation of Energy related Products (MEErP) and includes sections related to the scope and definition market analysis, analysis of user behaviour and system aspects, analysis of technologies, environmental and economics, design options and policy analysis and scenarios.This research was based on available scientific information and data, uses a life-cycle thinking approach, and has engaged stakeholder experts in order to discuss key issues, and to the extent possible reach consensus on the proposals The outcomes of this study provides policy makers with the evidence basis for assessing whether and how to revise the existing Regulations.JRC.B.5-Circular Economy and Industrial Leadershi

    Electricity Demand: Measurement, modelling and management of UK homes

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    The need to achieve a transition to a low carbon economy has renewed interest in "energy efficiency" and what has become known as "demand side management". This thesis investigates the role of measurement and modelling in the management of domestic electricity demand. Practice and policy have, since the 1950s, tended to favour a "supply paradigm" centred on the imperative of increasing energy supply. Despite the upheaval of market liberalisation, and twenty years of climate change debate, the domestic electricity "culture" has changed very little. The first half of this thesis contributes to this subject by describing the complex development of the electricity system that we are familiar with today. Drawing upon technical, social and political themes, the current and emerging practices of measurement, modelling, and management are critiqued. It is argued that current practices require revaluation, if alternative, decentralised approaches are to receive a fair analysis. The thesis contributes in empirical terms by extending the evidence base and developing modelling tools for the analysis of domestic electricity use. Field data collected by the author concerning the power flow characteristics of domestic appliances are presented which identify the dynamic nature of domestic electrical loads. A modelling framework is then introduced that combines social and technical aspects of domestic energy demand, allowing synthesis of domestic load profiles and allowing comparison between localised interventions

    A socio-technical investigation into the electrical end use patterns of information, communication and entertainment technologies in UK homes.

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    Information, communication and entertainment (ICE) appliances are consumer electronics and information and communication technologies (ICT). Forecasts suggest that ICE appliance use will soon become the most significant domestic electricity end-use in the UK. Knowledge concerning “real world” ICE electricity consumption is currently limited and it has been suggested that this deficiency could lead to ineffective policy programmes. This socio-technical study measured ICE appliance electricity consumption in fourteen UK households’ and undertook household interviews to explore the behavioural factors that influenced the measurements recorded. The interviews were informed by two social psychology theories: (i) Triandis’ (1977) Theory of Interpersonal Behaviour (TIB); (ii) Rogers’ (2003) Diffusion of Innovations Theory (DIT). The study supports the position that ICE appliance use and standby power consumption are significant electricity end-uses in UK homes. Key appliances that contributed to the sample’s average electricity consumption are identified. Inconspicuous electricity consumption from network appliances is an issue of particular concern due to policy gaps. The interviews found that a range of internal and external factors influenced ICE appliance use. Behavioural intentions and habits were found to be facilitated or impeded by personal ability, knowledge and physical constraints. Social structures and expectations also supported the more expansive ownership and use of ICE appliances and energy consumption was an issue largely excluded from adoption decisions. The findings imply that a multifaceted approach is required to reduce household ICE appliance electricity consumption. This study supports the recent implementation of minimum energy performance standards and provides further recommendations that include: (i) improved product design; (ii) the expansion of mandatory energy labelling; (iii) improved electricity consumption feedback in UK homes; (iv) the use of behaviour change campaigns; (v) the integration of ICE appliance energy saving objectives into UK policies

    Proceedings of the 6th International Conference EEDAL'11 Energy Efficiency in Domestic Appliances and Lighting

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    This book contains the papers presented at the sixth international conference on Energy Efficiency in Domestic Appliances and Lighting. EEDAL'11 was organised in Copenhagen, Denmark in May 2011. This major international conference, which was previously been staged in Florence 1997, Naples 2000, Turin 2003, London 2006, Berlin 200h9a s been very successful in attracting an international community of stakeholders dealing with residential appliances, equipment, metering liagnhdti ng (including manufacturers, retailers, consumers, governments, international organisations aangde ncies, academia and experts) to discuss the progress achieved in technologies, behavioural aspects and poliacineds , the strategies that need to be implemented to further progress this important work. Potential readers who may benefit from this book include researchers, engineers, policymakers, and all those who can influence the design, selection, application, and operation of electrical appliances and lighting.JRC.F.7-Renewable Energ

    Cyclic blackout mitigation and prevention

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    Severe and long-lasting power shortages plague many countries, resulting in cyclic blackouts affecting the life of millions of people. This research focuses on the design, development and evolution of a computer-controlled system for chronic cyclic blackouts mitigation based on the use of an agent-based distributed power management system integrating Supply Demand Matching (SDM) with the dynamic management of Heat, Ventilation, and Air Conditioning (HVAC) appliances. The principle is supported through interlocking different types of HVAC appliances within an adaptive cluster, the composition of which is dynamically updated according to the level of power secured from aggregating the surplus power from underutilised standby generation which is assumed to be changing throughout the day. The surplus power aggregation provides a dynamically changing flow, used to power a basic set of appliances and one HVAC per household. The proposed solution has two modes, cyclic blackout mitigation and prevention modes, selecting either one depends on the size of the power shortage. If the power shortage is severe, the system works in its cyclic blackout mitigation mode during the power OFF periods of a cyclic blackout. The system changes the composition of the HVAC cluster so that its demand added to the demand of basic household appliances matches the amount of secured supply. The system provides the best possible air conditioning/cooling service and distributes the usage right and duration of each type of HVAC appliance either equally among all houses or according to house temperature. However if the power shortage is limited and centred around the peak, the system works in its prevention mode, in such case, the system trades a minimum number of operational air conditioners (ACs) with air cooling counterparts in so doing reducing the overall demand. The solution assumes the use of a new breed of smart meters, suggested in this research, capable of dynamically rationing power provided to each household through a centrally specified power allocation for each family. This smart meter dynamically monitors each customer’s demand and ensures their allocation is never exceeded. The system implementation is evaluated utilising input power usage patterns collected through a field survey conducted in a residential quarter in Basra City, Iraq. The results of the mapping formed the foundation for a residential demand generator integrated in a custom platform (DDSM-IDEA) built as the development environment dedicated for implementing and evaluating the power management strategies. Simulation results show that the proposed solution provides an equitably distributed, comfortable quality of life level during cyclic blackout periods.Severe and long-lasting power shortages plague many countries, resulting in cyclic blackouts affecting the life of millions of people. This research focuses on the design, development and evolution of a computer-controlled system for chronic cyclic blackouts mitigation based on the use of an agent-based distributed power management system integrating Supply Demand Matching (SDM) with the dynamic management of Heat, Ventilation, and Air Conditioning (HVAC) appliances. The principle is supported through interlocking different types of HVAC appliances within an adaptive cluster, the composition of which is dynamically updated according to the level of power secured from aggregating the surplus power from underutilised standby generation which is assumed to be changing throughout the day. The surplus power aggregation provides a dynamically changing flow, used to power a basic set of appliances and one HVAC per household. The proposed solution has two modes, cyclic blackout mitigation and prevention modes, selecting either one depends on the size of the power shortage. If the power shortage is severe, the system works in its cyclic blackout mitigation mode during the power OFF periods of a cyclic blackout. The system changes the composition of the HVAC cluster so that its demand added to the demand of basic household appliances matches the amount of secured supply. The system provides the best possible air conditioning/cooling service and distributes the usage right and duration of each type of HVAC appliance either equally among all houses or according to house temperature. However if the power shortage is limited and centred around the peak, the system works in its prevention mode, in such case, the system trades a minimum number of operational air conditioners (ACs) with air cooling counterparts in so doing reducing the overall demand. The solution assumes the use of a new breed of smart meters, suggested in this research, capable of dynamically rationing power provided to each household through a centrally specified power allocation for each family. This smart meter dynamically monitors each customer’s demand and ensures their allocation is never exceeded. The system implementation is evaluated utilising input power usage patterns collected through a field survey conducted in a residential quarter in Basra City, Iraq. The results of the mapping formed the foundation for a residential demand generator integrated in a custom platform (DDSM-IDEA) built as the development environment dedicated for implementing and evaluating the power management strategies. Simulation results show that the proposed solution provides an equitably distributed, comfortable quality of life level during cyclic blackout periods

    Proceedings of the 7th International Conference EEDAL 2013 Energy Efficiency in Domestic Appliances and Lighting

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    This book contains the papers presented at the seventh international conference on Energy Efficiency in Domestic Appliances and Lighting. EEDAL'2013 was organised in Coimbra, Portugal in September 2013. This major international conference, which was previously been staged in Florence 1997, Naples 2000, Turin 2003, London 2006, B2e0r0l9in, Copenhagen 2011 has been very successful in attracting an international community of stakeholders dealing with residential appliances, equipment, metering liagnhdti ng (including manufacturers, retailers, consumers, governments, international organisations aangde ncies, academia and experts) to discuss the progress achieved in technologies, behavioural aspects and poliacineds , the strategies that need to be implemented to further progress this important work. Potential readers who may benefit from this book include researchers, engineers, policymakers, and all those who can influence the design, selection, application, and operation of electrical appliances and lighting.JRC.F.7-Renewables and Energy Efficienc
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