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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.
1

Evaluating power trading in selected countries of the Southern African development community

Lukamba Muhiya, Jean-Marc January 2008 (has links)
Thesis (DTech (Public Management))--Cape Peninsula University of Technology, 2008 / The research explores an evaluation of cross-border electricity trading among countries of the Southern African Development Community (SADC). Understanding this trading achieve through an analysis of various global electricity markets. The research disclose that in the electricity markets in Europe, North America, South America and Asia analysed in this thesis, none managed to successful eliminate power shortages. Their situation, however, is different from that of the Southern Africa Power Pool (SAPP). The apparent poor design of the SAPP as a regional power pool impacts negatively on power trading within its region. A strategic public management model was used to analyse the organisational dynamics of the electricity companies of the three countries selected for this research (Democratic Republic of Congo, South Africa and Zimbabwe). A Strength Weakness Opportunities and Threats (SWOT) analysis carried out on these markets indicated that there are problems among different electricity companies, each requiring a solution. Each country's evaluation highlighted a need for an accountable government to implement a goal-directed policy to militate against any dysfunctional operations by the electricity companies. The quantitative and qualitative data analyses of the fieldwork results showed the SAPP had struggled hard to increase the capacity of members' power trading. The study indicated internal problems in terms of increasing trading volumes. The time series analysis showed power trading in the short-term electricity market had decreased annually. Linear regression analysis also indicated a decline in the capacity of the SAPP. A number of factors could explain the reduction of capacity in the SAPP, but the research results suggested a strong probability that electricity capacity would decrease further, as the countries, trading in the power pool have experienced decreased electricity volume annually because of internal demand. In addition to a number of. recommendations, the research proposes a normative model that could be used by nations to manage and assess the electricity market. An understanding of the input as adapted from Easton inpuUoutput normative 11 transformational systems model, in terms of different governments, should assist policy-makers to transform the power trading generating distribution industry. Global experience shows the need to establish a normative transformation of the electricity industry in the SADC region. It is clear from the results of this study that the SADC electricity markets have been poorly transformed in terms of a particular normative guideline. The situation has also disadvantaged the SAPP, which, in recent times, had less electricity capacity with which to trade. Implementation of the normative model in the context of this study sought to analyse all aspects that might influence the transformation of the electricity sector, and to grow a currently dysfunctional state to that of functionality and reliability. While each country faced its own reality in terms of the transformation of its public enterprises, the study recommends the normative model be implemented in the same way in each selected country.
2

The Development of a Composite Transmission Electrical Network Utilisation Comparative Study Index

Auditore, Frank Anthony 12 1900 (has links)
Thesis (PhD)--University of Stellenbosch, 2004. / 242 Leaves printed single pages, preliminary pages i-viii and numberd pages. Includes bibliography. Tables and figures. / ENGLISH ABSTRACT:The aim of the proposed study was to develop an electrical utility organisational performance measure indicator that measures electrical network utilisation (U) for the actual maximum demand and total energy transferred. The scope of the study extended itself to include reliability and exogenous considerations. The scope of the research study included three primary variables with secondary variables as the performance measures. The available data was screened and filtered from outliers, and thereafter, multivariate analysis was applied in deriving the overall linear equation for each of the above primary variables. The statistical process included the application of principal component analysis and factor analysis, a comparison between the two, and the derivation of linear equations. The study produced linear equations relating to the former. The primary variables were presented in the form of a 3-Dimensional scatter plot. Each variable was inspected for linearity and clustering to validate the results and include any previously excluded outliers that complied with linear functionality. A practical application of the research findings was included. This included the extremes of linearity and clustering. The research concludes with further research opportunities in this study direction. / AFRIKAANSE OPSOMMING:Die doel van hierdie ondersoek was om 'n maatstaf te ontwikkel wat elektrisiteitsverskaffers in staat stel om die effektiwiteit en benutting van die elektriese transmissienetwerk te meet. Dit sluit die maksimum aanvraag en totale hoeveelheid energie wat deur die transmissienetwerk oorgedra word in. Die omvang van die studie is uitgebrei om ook eksterne faktore en betroubaarheidsoorwegings in te sluit. Die beskikbare inligting is gekeur en gefilter om uitskieters uit te skakel en daarna is multivariate analise gebruik om 'n lineêre vergelyking vir elk van die primêre veranderlikes te ontwikkel. Die statistiese analise het onder andere van hoofkomponente analise en faktor analise gebruik gemaak. 'n Vergelyking tussen die twee metodes is gemaak en liniêre vergelykings is afgelei. Die primere veranderlikes was gesamelik getoon in n’ 3-dimensionele grafik. Die lineariteit en groepering van elke veranderlike is egter ondersoek om die resultate te staaf en enige uitskieters wat voorheen uitgesluit is maar wel aan die lineêre verband voldoen het in te sluit. 'n Praktiese toepassing van die bevindings was uitgevoer en het die uiterstes van lineariteit en groepering ingesluit. Die ondersoek word afgesluit met 'n bespreking van moontlike verdere navorsingsgeleenthede.

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