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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Podnikatelský plán - Fotovoltaická elektrárna / Business plan - Solar power plant

Dlouhá, Pavlína January 2010 (has links)
Renewable energy resources in the Czech Republic, especially photovoltaics, have experienced a great boom in the past few years. The investment in the photovoltaic plants has been and will be a very promising field for investors unless too many legislative barriers are adopted to make the investments unattractive. This diploma thesis therefore elaborates a real world business case of a solar power plant. Within the business case a sensitivity analysis is being made to evaluate the influences of external factors that may have a major impract on the effectiveness and returnability of the project. Conclusions made in the analysis help to make the desicion whether to realize or not to realize the project.
112

Evolution of my subject matter knowledge for teaching energy resources and its uses in Grade 11 : self study.

Khumalo, Maureen K. 24 July 2013 (has links)
The implementation of a new curriculum is a challenging issue to educators in many countries. In this country training for an implementation of a curriculum is done in one week and it takes a form of one a size fits all. The study investigated how I transform my content knowledge when teaching a new topic in the new curriculum. The aim of this study was to carry a self- study of how I transformed my content knowledge when teaching energy resources and its uses to make it comprehensible to learners. The following research question guided the study:  How did my PCK develop as I developed the broad content of the energy resources and its uses into focused, teachable and comprehensible content?  How did my planning and reflecting on practice change as I participated in the process of planning, developing and implementing the lesson plans? When teachers teach, they draw upon knowledge of their subject matter, general pedagogy as well as context. This could be improved by the contribution of the concept of pedagogical content knowledge where content and pedagogy are blended. Therefore, for this study I have chosen PCK as a theoretical framework because I will be looking at how my content knowledge can be transformed into content knowledge for teaching. The study employed a qualitative research, which uses multiple realities that are socially constructed through collective and individual definitions of the situations. It is a self –study focusing on my own teaching and intending to improve my practice as a teacher. The focus is myself teaching two grade 11 classes in a township school. Khumalo M. iv Data was collected in a form of concept maps, reflective journals, lesson plan and CoRE s and PaPeRs. CoRes and PaPe-Rs were used to capture and portray my PCK. The methodological tools used to document and portray my Pedagogical Content Knowledge when teaching energy and resources, used representations called Content Representation (CoRe) and Pedagogical and Professional – experience Repertoires (PaP-eRs). The CoRe elaborated on my construction of content, which framed the topic and each Pa-PeR, was a narrative derived from the classroom observations and the journal. Findings in this study indicate that using the CoRe and PaPeR as a tool to portray PCK helps in the development of content knowledge. Some elements of PCK could be identified and the implementation of developed lessons led to insight into my teaching. Learners participated more freely and develop confidence when home language was used. I gained confidence using the CoRe to develop lessons.
113

GNL como mecanismo de flexibilização do suprimento de gás natural para geração termelétrica no Brasil / LNG as a Flexibility Mechanism for Natural Gas Supply for Thermoelectric Generation in Brazil

Demori, Marcio Bastos 14 April 2008 (has links)
Em função do crescente processo de liberalização dos mercados de gás natural e de energia elétrica nos países do hemisfério norte, bem como pelo aumento das restrições ambientais, as projeções de demanda mundial de gás natural indicam um forte crescimento, principalmente no segmento de geração de energia elétrica. Assim, pode-se afirmar que haverá uma convergência cada vez maior entre os mercados de gás natural e de eletricidade. O transporte do gás natural em sua forma liquefeita, o GNL (Gás Natural Liquefeito), representa um importante pivô para essa convergência, bem como para uma integração global crescente dos mercados de gás natural e eletricidade. Essas evoluções sempre estiveram distantes da realidade brasileira, pois a geração elétrica predominantemente hídrica historicamente reservou um papel limitado para a geração termelétrica. No entanto, desde 2001, como resultado da crise de abastecimento de energia elétrica, o Brasil também fez esforços importantes rumo a uma maior convergência entre os mercados de gás e eletricidade. Desde 2005, a importação de GNL tem sido analisada para o caso brasileiro, visando prioritariamente o atendimento de uma demanda termelétrica para o gás natural. A característica principal deste modelo é a necessidade de se garantir uma oferta de combustível flexível para usinas que deverão suprir uma demanda termelétrica igualmente flexível: oferta flexível para demanda flexível. A luz das evoluções em curso no mercado global, o presente trabalho avalia a viabilidade deste modelo a partir da análise das possibilidades do suprimento de GNL ser efetuado de forma flexível, atuando, assim, como mecanismo de flexibilização da oferta de gás natural e garantindo um melhor aproveitamento da capacidade de geração elétrica atualmente instalada no Brasil. / Due to the growth of liberalization process on natural gas and electricity markets on northern hemisphere countries, as well as due to raising environmental restrictions, world natural gas demand projections indicate a strong growth, mainly driven by the power generation segment. Therefore, we can affirm that will have an even higher convergence between natural gas and electricity markets. Natural gas transportation in its liquefied form, the LNG (Liquefied Natural Gas), represents an important pivot for this convergence, as well as for the raising global integration of electricity and natural gas markets. These evolutions were always distant from Brazilian reality, as dominant hydroelectric generation historically reserved a limited role for thermoelectric generation. However, since 2001, as a result from the electricity supply crisis, Brazil also did important efforts towards a greater convergence between natural gas and electricity markets. Since 2005, LNG importation has been analyzed for the Brazilian case, primarily focusing thermoelectric demand utilization for the natural gas. The main characteristic of this model is the necessity to guarantee a flexible fuel supply for power plants that shall supply an equally flexible thermoelectric demand: flexible supply for flexible demand. In light of the evolutions underway on the global market, this study evaluates the viability of this model based on the possibility of LNG supplies be done on flexible way, acting then as a natural gas supply flexibility mechanism and guaranteeing a better utilization of the thermoelectric generation capacity already installed in Brazil.
114

Environmental siting suitability analysis for commercial scale ocean renewable energy: a southeast Florida case study

Unknown Date (has links)
This thesis aims to facilitate the siting and implementation of Florida Atlantic University Southeast National Marine Renewable Energy Center (FAU SNMREC) ocean current energy (OCE) projects offshore southeastern Florida through the analysis of benthic anchoring conditions. Specifically, a suitability analysis considering all presently available biologic and geologic datasets within the legal framework of OCE policy and regulation was done. OCE related literature sources were consulted to assign suitability levels to each dataset, ArcGIS interpolations generated seafloor substrate maps, and existing submarine cable pathways were considered for OCE power cables. The finalized suitability map highlights the eastern study area as most suitable for OCE siting due to its abundance of sand/sediment substrate, existing underwater cable route access, and minimal biologic presence. Higher resolution datasets are necessary to locate specific OCE development locales, better understand their benthic conditions, and minimize potentially negative OCE environmental impacts. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2014. / FAU Electronic Theses and Dissertations Collection
115

Modelagem da carteira dos recursos energéticos no PIR: validação do modelo no PIR de Araçatuba. / Energy resources portfolio model in the IERP: a case of study in the administrative region of Araçatuba.

Mário Fernandes Biague 10 May 2010 (has links)
O objetivo desta tese é construir um modelo de composição de carteiras de recursos energéticos dentro do Planejamento Integrado de Recursos Energéticos (PIR), aplicável em uma determinada região ou país. Este modelo inclui as etapas de definição do espaço geográfico de estudo, o mapeamento de recursos, a caracterização dos recursos energéticos existentes e sua valoração. Após estas etapas, é feita a composição de carteiras energéticas, seguida pela construção de cenários e análise de riscos e incertezas para a definição da carteira preferencial dos recursos energéticos da região. Como ferramentas de apoio, são adaptados modelos matemáticos aplicados em sistemas financeiros para a seleção e análise de carteiras de investimentos, modelos para a avaliação de riscos e incertezas, o software de Planejamento de Alternativas Energéticas de Longo Alcance (LEAP) para a criação de cenários e previsão da demanda energética e o software Decision Lens (DL) para o ranqueamento e a alocação de recursos financeiros dos recursos energéticos dentro da carteira definida, considerando as dimensões técnico-econômico, ambiental, social e política. A caracterização dos recursos energéticos envolve o levantamento das características socioeconômicas, ambientais, o perfil dos envolvidos e interessados do setor energético, a listagem de recursos energéticos locais (hídricos, eólicos, solares, nucleares, biomassa, geotérmicas, células a combustíveis dentre outros). Também são levantadas características construtivas das tecnologias existentes e que podem ser incorporadas na matriz energética da região em estudo. O processo de avaliação dos potenciais energéticos envolve o cálculo dos potenciais energéticos teóricos de cada recurso energético existente na região. Após a avaliação dos potenciais, faz-se a priorização ou ranqueamento destes recursos através de critérios pré-definidos, em duas avaliações diferentes: Avaliação Determinística dos Custos Completos (ADCC) e Avaliação Holística dos Custos Completos (AHCC). Para gerar ambos os rankings utiliza-se o software Decision Lens (DL) baseado no método do Processo de Análise Hierárquico (PAH). O cruzamento das avaliações resulta em ranking geral dos recursos energéticos, utilizado posteriormente para a construção de carteiras dos recursos energéticos. Na valoração dos recursos energéticos, consideram-se atributos ambientais, sociais, técnico-econômicos e políticos, que podem afetar a formação de carteiras eficientes dentro do PIR a longo prazo. O resultado do processo de valoração é o potencial energético realizável da região em estudo. Para este potencial, aplica-se o modelo analítico de formação de carteiras de recursos energéticos. Neste são considerados o ranking, o volume de investimentos, os atributos ambientais (emissões), sociais (IDH, número de empregos, ocupação de solo), políticos (incentivos governamentais, impostos) e todos os parâmetros técnicoeconômicos relacionados às tecnologias selecionadas para o aproveitamento de cada recurso energético. Com a incorporação destas variáveis no modelo, faz-se simulações para a obtenção de carteiras ótimas para a construção do Plano Preferencial dentro do Planejamento Integrado dos Recursos Energéticos. / The main objective of this thesis is to establish a model to guide the composition of energy resources portfolios in the process of the Integrated Resources Planning (IRP) in a region or a country. This includes steps such as the definition of the geographical space of study, mapping of resources, characterization of existing energy resources, and valuation of energy resources. After these steps, the portfolios are formed, followed by the construction of scenarios, and the analysis of risks and uncertainties for the definition of the preferential portfolio of energy resources in the region. Supporting tools based on mathematical models used in financial systems are adapted to the selection and analysis of investment portfolios, models for the evaluation of risks and uncertainties, the Long Range Energy Alternatives Planning Software (LEAP) to create energy demand scenarios and the Decision Lens Software (DL) to rank and allocate financial resources of energy resources within a defined portfolio, considering the technical-economic, environmental, social and political dimensions. The energy resources characterization involves the removal of socioeconomic characteristics, environmental, the profile of those involved and interested in the energy sector, the listing of local energy resources (water, wind, solar, nuclear, geothermal, biomass, fuel cells among other). Constructive features have also been raised of existing technologies and that can be incorporated into the energy matrix of the region under study. The process of energy potential evaluation involves the calculation of theoretical potential energy of each existing energy resource in the region. After the assessment of potential, it was ranking resources through pre-established criteria in two different assessments: Full costs Deterministic Evaluation (ADCC) and Holistic Assessment of Full Costs (AHCC). To generate both rankings, it was used the software Decision Lens (DL) based on the method of Tiered Analysis process (PAH). With both assessment results, it is build the overall ranking of energy resources, used to build an energy resources portfolio. In the valuation of energy resources, environmental, social, technical economic and political attributes are considered to the resources valuation that may affect the portfolio selection within the IRP in the long term. The result of the valuation process is the disposable energy potential of the region in the study. Using the information above, finally, it was applied an analytical portfolio selection model of energy resources. It considered the ranking, the volume of investments, the environmental attributes (emission), social (IDH, number of jobs, occupation of land), political (Government incentives, taxes) and all the parameters related to the technical-economical selected technologies for the enjoyment of each energy resource. With the incorporation of these variables in the model, simulations for obtaining optimal portfolios for the construction of the Preferred Plan within the IERP.
116

Prospecção de potenciais de geração distribuída em propriedades rurais utilizando geotecnologias e metodologias multicriteriais de apoio à decisão

Vargas, Marnoon Poltozi 12 April 2016 (has links)
Submitted by Cátia Araújo (catia.araujo@unipampa.edu.br) on 2017-01-24T14:36:23Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Prospecção de potenciais de geração distribuída em propriedades rurais utilizando geotecnologias e metodologias multicriteriais de apoio à decisão.pdf: 26470824 bytes, checksum: f455ff48e17fcd41cfdce56ba19511eb (MD5) / Approved for entry into archive by Cátia Araújo (catia.araujo@unipampa.edu.br) on 2017-01-24T14:37:47Z (GMT) No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Prospecção de potenciais de geração distribuída em propriedades rurais utilizando geotecnologias e metodologias multicriteriais de apoio à decisão.pdf: 26470824 bytes, checksum: f455ff48e17fcd41cfdce56ba19511eb (MD5) / Made available in DSpace on 2017-01-24T14:37:47Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Prospecção de potenciais de geração distribuída em propriedades rurais utilizando geotecnologias e metodologias multicriteriais de apoio à decisão.pdf: 26470824 bytes, checksum: f455ff48e17fcd41cfdce56ba19511eb (MD5) Previous issue date: 2016-04-12 / A periódica situação de crise hidrológica pela qual passa o Sistema Elétrico Brasileiro valoriza a exploração de recursos renováveis como uma possível solução para a energização no meio rural. Isto porque sua exploração auxilia o sistema nos momentos de pico, pois tem viés de sustentabilidade. Por outro lado, esta opção permite ao investidor independência do sistema interligado, com uma redução nos custos de energia elétrica que pode ser incorporada aos lucros. No entanto, o planejamento do setor elétrico ainda encara a atuação pelo lado da demanda como ações isoladas e não integradas, diferentemente do que é realizado em países desenvolvidos. Sistema de Informação Geográfica (SIG) e métodos multicriteriais de apoio à decisão podem ser utilizados para o planejamento energético e consequente identificação de locais propícios a receber investimentos em fontes renováveis. Isto porque a avaliação de recursos e requisitos energéticos, nos aspectos técnicos, econômicos, sociais e ambientais são inerentemente espaciais. Assim, esta dissertação visa apresentar uma metodologia de apoio à decisão, baseada em SIG, avaliação multicriterial e multiatores, que permita identificar as melhores áreas para o aproveitamento dos recursos energéticos e selecionar as tecnologias de micro e mini geração distribuída mais adequadas a estes locais, focando como exemplo o contexto rural próprio da Fronteira Oeste do Estado do Rio Grande do Sul. / Periodic situation hydrologic crisis now facing the Brazilian Electric System values the exploitation of renewable resources as a possible solution to power up in the countryside. This is because their operation helps the system in peak times, has bias of sustainability, on the other hand allows the investor independence of the interconnected system, with a reduction in electricity costs that can be incorporated into profits. However, the power sector planning also sees action on the demand side as isolated actions and not integrated, unlike what is done in developed countries. Geographic Information System (GIS) and advanced methods of decision support can be used for energy planning and consequent identification of potential sites to receive investments in renewable sources. This is because the evaluation of resources and energy requirements in technical, economic, social and environmental aspects are inherently spatial. Thus, this master thesis presents a decision support methodology, based on GIS, multi-criteria and multi-actor assessment, which will identify the best areas for the use of energy resources and select the micro technologies and mini distributed generation system, more appropriate to these sites, in a very rural setting of the West Border of the Rio Grande do Sul State, Brazil.
117

Modelos de negócio para geradores incentivados atuando no ambiente de contratação livre do Brasil. / Business models for incentivized generator acting in the freee market electricity of Brazil.

Guimarães, Matheus Thomé Albano 26 October 2016 (has links)
Made available in DSpace on 2017-07-10T16:41:35Z (GMT). No. of bitstreams: 1 Dissert Matheus Albano.pdf: 3597659 bytes, checksum: 7090061e73fc33981468aa62be2a4560 (MD5) Previous issue date: 2016-10-26 / The Incentivized Generator (IG) is a small agent that acts on the retail segment of the Electricity Market (EM) in Brazil. It receives incentives, as discounts on wire rates, when negotiates its energy either directly with special costumers or indirectly through a retail trader. The dynamic behavior of this agent on the complex EM results in an extremely uncertain environment for itself, hindering the growth of the retail market. Thus, the purpose of the study is to identify, characterize and describe the forms of GI relationship, putting them in the form of a business model, showing how you can create, provide and receive value of the medium. For the development of the business model, we propose the use of methodologies Busmod and Business Model Generation, the first by the great relationship with the proposed objective and the second by most of the application. The interrelations of the generator encouraged with other agents as well as the value changes and the uncertainties associated with the commercialization process are identified from a systemic approach to generator operation encouraged the ACL. These relationships are classified into three broad groups, physical, financial and institutional relationships. The analysis was segmented to consider the period of study and of implantation and operation. In this way it is possible to clearly understand the marketing process and the environment in which the GI is inserted, as well as the characteristics necessary for the elaboration of business models. / O Gerador Incentivado (GI) é um agente de pequeno porte que atua no segmento varejista do Mercado de Energia Elétrica (MEE) do Brasil. O mesmo recebe incentivo, na forma de descontos nas tarifas de fio, ao negociar sua energia diretamente com os consumidores especiais ou através de uma comercializadora. A dinâmica que envolve o complexo MEE resulta em um ambiente extremamente incerto para a atuação desse agente, dificultando o crescimento do mercado varejista. Assim, o propósito do trabalho é identificar, caracterizar e descrever as formas de relacionamento do GI, colocando-as na forma de um modelo de negócio, mostrando de que forma é possível criar, fornecer e receber valor do meio. Para a elaboração do modelo de negócio, é proposta a utilização das metodologias Busmod e Business Model Generation. As inter-relações do gerador incentivado com os demais agentes, assim como as trocas de valor e as incertezas associadas ao processo de comercialização, são identificadas a partir de uma abordagem sistêmica da atuação do gerador incentivado no ACL. Essas relações são classificadas em três grandes grupos, relações físicas, financeiras e institucionais. A análise foi segmentada para considerar o período de estudo e de implantação e operação. Desse modo é possível compreender de forma clara o processo de comercialização e o ambiente no qual está inserido o GI, assim como as características necessárias para a elaboração de modelos de negócio.
118

Modelagem da carteira dos recursos energéticos no PIR: validação do modelo no PIR de Araçatuba. / Energy resources portfolio model in the IERP: a case of study in the administrative region of Araçatuba.

Biague, Mário Fernandes 10 May 2010 (has links)
O objetivo desta tese é construir um modelo de composição de carteiras de recursos energéticos dentro do Planejamento Integrado de Recursos Energéticos (PIR), aplicável em uma determinada região ou país. Este modelo inclui as etapas de definição do espaço geográfico de estudo, o mapeamento de recursos, a caracterização dos recursos energéticos existentes e sua valoração. Após estas etapas, é feita a composição de carteiras energéticas, seguida pela construção de cenários e análise de riscos e incertezas para a definição da carteira preferencial dos recursos energéticos da região. Como ferramentas de apoio, são adaptados modelos matemáticos aplicados em sistemas financeiros para a seleção e análise de carteiras de investimentos, modelos para a avaliação de riscos e incertezas, o software de Planejamento de Alternativas Energéticas de Longo Alcance (LEAP) para a criação de cenários e previsão da demanda energética e o software Decision Lens (DL) para o ranqueamento e a alocação de recursos financeiros dos recursos energéticos dentro da carteira definida, considerando as dimensões técnico-econômico, ambiental, social e política. A caracterização dos recursos energéticos envolve o levantamento das características socioeconômicas, ambientais, o perfil dos envolvidos e interessados do setor energético, a listagem de recursos energéticos locais (hídricos, eólicos, solares, nucleares, biomassa, geotérmicas, células a combustíveis dentre outros). Também são levantadas características construtivas das tecnologias existentes e que podem ser incorporadas na matriz energética da região em estudo. O processo de avaliação dos potenciais energéticos envolve o cálculo dos potenciais energéticos teóricos de cada recurso energético existente na região. Após a avaliação dos potenciais, faz-se a priorização ou ranqueamento destes recursos através de critérios pré-definidos, em duas avaliações diferentes: Avaliação Determinística dos Custos Completos (ADCC) e Avaliação Holística dos Custos Completos (AHCC). Para gerar ambos os rankings utiliza-se o software Decision Lens (DL) baseado no método do Processo de Análise Hierárquico (PAH). O cruzamento das avaliações resulta em ranking geral dos recursos energéticos, utilizado posteriormente para a construção de carteiras dos recursos energéticos. Na valoração dos recursos energéticos, consideram-se atributos ambientais, sociais, técnico-econômicos e políticos, que podem afetar a formação de carteiras eficientes dentro do PIR a longo prazo. O resultado do processo de valoração é o potencial energético realizável da região em estudo. Para este potencial, aplica-se o modelo analítico de formação de carteiras de recursos energéticos. Neste são considerados o ranking, o volume de investimentos, os atributos ambientais (emissões), sociais (IDH, número de empregos, ocupação de solo), políticos (incentivos governamentais, impostos) e todos os parâmetros técnicoeconômicos relacionados às tecnologias selecionadas para o aproveitamento de cada recurso energético. Com a incorporação destas variáveis no modelo, faz-se simulações para a obtenção de carteiras ótimas para a construção do Plano Preferencial dentro do Planejamento Integrado dos Recursos Energéticos. / The main objective of this thesis is to establish a model to guide the composition of energy resources portfolios in the process of the Integrated Resources Planning (IRP) in a region or a country. This includes steps such as the definition of the geographical space of study, mapping of resources, characterization of existing energy resources, and valuation of energy resources. After these steps, the portfolios are formed, followed by the construction of scenarios, and the analysis of risks and uncertainties for the definition of the preferential portfolio of energy resources in the region. Supporting tools based on mathematical models used in financial systems are adapted to the selection and analysis of investment portfolios, models for the evaluation of risks and uncertainties, the Long Range Energy Alternatives Planning Software (LEAP) to create energy demand scenarios and the Decision Lens Software (DL) to rank and allocate financial resources of energy resources within a defined portfolio, considering the technical-economic, environmental, social and political dimensions. The energy resources characterization involves the removal of socioeconomic characteristics, environmental, the profile of those involved and interested in the energy sector, the listing of local energy resources (water, wind, solar, nuclear, geothermal, biomass, fuel cells among other). Constructive features have also been raised of existing technologies and that can be incorporated into the energy matrix of the region under study. The process of energy potential evaluation involves the calculation of theoretical potential energy of each existing energy resource in the region. After the assessment of potential, it was ranking resources through pre-established criteria in two different assessments: Full costs Deterministic Evaluation (ADCC) and Holistic Assessment of Full Costs (AHCC). To generate both rankings, it was used the software Decision Lens (DL) based on the method of Tiered Analysis process (PAH). With both assessment results, it is build the overall ranking of energy resources, used to build an energy resources portfolio. In the valuation of energy resources, environmental, social, technical economic and political attributes are considered to the resources valuation that may affect the portfolio selection within the IRP in the long term. The result of the valuation process is the disposable energy potential of the region in the study. Using the information above, finally, it was applied an analytical portfolio selection model of energy resources. It considered the ranking, the volume of investments, the environmental attributes (emission), social (IDH, number of jobs, occupation of land), political (Government incentives, taxes) and all the parameters related to the technical-economical selected technologies for the enjoyment of each energy resource. With the incorporation of these variables in the model, simulations for obtaining optimal portfolios for the construction of the Preferred Plan within the IERP.
119

Supply chain risk mitigation strategies in the electrical energy sector in South Africa

Jonathan, Ellsworth Chouncey 08 1900 (has links)
Interferences to supply chains, regardless of whether they are regular, unplanned or intentional, are progressively distorting supply chain execution. Given that such disruptions are probably not going to diminish, for the time being, supply chain risk mitigating solutions will assume an undeniably critical part of the management of supply chains. This research acknowledges the existence of an extensive variety of approaches to mitigate risks across supply chains, yet argues that most methodologies may not be reasonable if the culture of an organisation does not support them. Supply Chain Risk Management (SCRM) has rapidly become of significance to the world economy. Though the supply of electrical energy in Southern Africa affects the economies of nations around the globe, it has received too little consideration from the literary community. The focus of this thesis is to expand the field of SCRM by analysing how different risk assessment and management concepts and practices are comprehended, construed and employed through the region. The majority of developed supply chain management and risk management models are currently entrenched in the US and Europe. Consequently, this research is of high significance since its essential aim was to investigate these concepts and models, in particular, one focused on Africa. This approach enabled the thesis to examine and test components related to SCRM, such as risk categories, risk assessment and risk strategies, in the electrical energy sector in South Africa. The study in this manner offers knowledge that was not otherwise accessible in earlier research. In pursuit of meeting the requirements of the research questions, the supply chain department in the electrical energy supplier was researched. This study adopted the non-probability sampling approach utilising the purposive sampling technique to choose the sampling components from the target population. Data was collected by way of conducting semi-structured interviews and researcher observation, as well as additional documentation in various forms was collected. Interviews were transcribed and evaluated in conjunction with additional data collected during meetings and triangulated using researcher observation. Data interpretation and codification thereof was done using ATLAS.ti 8 by which, twenty-five themes emerged from this study. Supply chain risks comprise value streams; information and affiliations; supply chain activities; and external situations. Among these, information and relationships risks were found to produce selfupgrading risk loops, thereby generating consequent risk impacts after disturbances. To mitigate these risks, the case firm must engage in local and international supply chain implemented strategies, such as building a stable supply chain network, leveraging supply chain information, leveraging outsourcing contracts and developing supply-chain risk collaboration partnerships, although the level of implementation depends on the business context. Among the ten identified themes, building a stable supply chain and developing supply chain collaboration strategies can be useful in strengthening both robustness and resilience in supply chain risk management. Customer orientation had positive impacts on all themes, but disruption orientation and quality orientation influenced only certain types of strategies. The study makes ten recommendations, which can be implemented by the case firm; the results of the interviews are evidence that all the tools are available. The thesis concludes with a summary of overall findings and areas for further research are also highlighted.
120

Atsinaujinančių energijos išteklių vartojimo perspektyvos Lietuvoje / Renewable energy resources use perspective in lithuania

Rekutė, Milda 26 June 2014 (has links)
Atsinaujinantys energijos ištekliai tampa vis svarbesne energetikos plėtros gaire Europoje ir pasaulyje. Kadangi atsinaujinantys energijos ištekliai yra neriboti, alternatyviai pakeičiantys kurui reikalingas žemės iškasenas, todėl jų panaudojimas iš esmės atitinka darnaus vystymosi koncepciją. Aprūpinimas saugia, nebrangia, aplinkai nekenksminga ir neišsenkančia energija yra darnios energetikos pagrindas. Taigi, atsinaujinantys, arba darnūs, energijos ištekliai yra reikšminga darnios plėtros dalis. Darbo objektas – „žalioji“ elektra. Darbo tikslas - išanalizuoti atsinaujinančių energijos išteklių vartojimą ir perspektyvas Lietuvoje, bei įvertinti įmonių pasiryžimą už „žaliąją“ elektrą mokėti brangiau. Pagrindiniai darbo uždaviniai atskleisti darnaus vystymosi koncepciją, išnagrinėti darnų energetikos vystymąsi, išanalizuoti rinkos trūkumų plėtros sąsajas ekonominėse teorijose, įvertinti energijos rinkų liberalizavimo naudą, apibrėžti atsinaujinančių išteklių rūšis, ištirti elektros energijos gautos iš atsinaujinančių energijos rūšių vartojimo tendencijas, įvardinti kliūtis trukdančias atsinaujinančių energijos išteklių vartojimo didėjimą, apžvelgti valstybės paramą skatinančią šių išteklių vartojimą, atlikti Kauno gamybinių įmonių tyrimą, įvertinant jų pasiryžimą už „žaliąją“ elektrą mokėti brangiau. Darbe iškeltos šios hipotezės: H1 - AEI negali konkuruoti elektros energijos rinkoje, dėl nesugebėjimo valdyti išorinių kaštų; H2 - Dėl nepakankamų AEI skatinimo priemonių... [toliau žr. visą tekstą] / Renewable energy resources are becoming an increasingly important energy development milestone in Europe and the world. Because renewable energy resources are unlimited, alternatively, replacing the fuel required for the mineral resource land, and therefore their use is broadly consistent with the concept of sustainable development. Provision of a safe, inexpensive, environmentally friendly and the unrelenting energy of a sustainable energy base. Thus, the renewable or sustainable energy resources is a significant part of sustainable development. Subject matter of the thesis – "green" electricity. Aim of the thesis – to examine the use of renewable energy resources and the prospects of Lithuania, and to assess readiness for the "green" electricity to pay a higher price. The main tasks of the work to reveal the concept of sustainable development, to consider sustainable energy development, to analyze weaknesses in the development of market linkages to economic theory, to evaluate the benefits of the liberalization of energy markets, to define the types of renewable resources, to investigate the electricity produced from renewable energy consumption trends, identify the obstacles hindering the use of renewable energy resources increase in the stock of public support to promote the use of these resources, to make Kaunas a study of industrial enterprises, to assess their readiness for the "green" electricity to pay a higher price. The paper raised the following hypotheses: H1 -... [to full text]

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