861 resultados para Electric utilities -- Accounting -- Australia


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Item 1005-C.

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Managing sewer blockages represents a significant operational challenge for water utilities. In Australia, company-level blockage rates are used to compare the effectiveness of the management strategies of different utilities. Anecdotal evidence suggests this may not be a fair basis for comparison because blockages are influenced by a range of factors beyond management control and that vary from company to company. This issue was investigated as part of a broader research effort on sewer blockage management undertaken in conjunction with the Water Services Association of Australia (WSAA) and its members. A Web-based survey was used to collate expert opinion on factors that influence blockage rate. The identified factors were then investigated in an exploratory analysis of blockage-related data provided by two participating utilities, supported by literature reviews. The results indicate that blockage rate is influenced by a range of factors, including asset attributes, climatic conditions, water consumption, and soil type. Since these factors vary from utility to utility, this research supports the assertion that company-level blockage rate is not in itself an appropriate metric for comparing management effectiveness.

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With the increasing use of extra high-voltage transmission in power system expansion, the manufacturers of power apparatus and the electric utilities are studying the nature of overvoltages in power systems due to lightning and, in particular, switching operations. For such analyses, knowledge of the natural frequencies of the windings of transformers under a wide variety of conditions is important. The work reported by the author in a previous paper is extended and equivalent circuits have been developed to represent several sets of terminal conditions. These equivalent circuits can be used to determine the natural frequencies and transient voltages in the windings. Comparison of the measured and the computed results obtained with a model transformer indicates that they are in good agreement. Hence, this method of analysis provides a satisfactory procedure for the estimation of natural frequencies and transient voltages in transformer windings.

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Policy makers and analysts are often faced with situations where it is unclear whether market-based instruments hold real promise of reducing costs, relative to conventional uniform standards. We develop analytic expressions that can be employed with modest amounts of information to estimate the potential cost savings associated with market-based policies, with an application to the environmental policy realm. These simple formulae can identify instruments that merit more detailed investigation. We illustrate the use of these results with an application to nitrogen oxides control by electric utilities in the United States.

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Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

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Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

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Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

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Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.

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100.00% 100.00%

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Resumo:

Santee Cooper annually published Fingertip Facts, which provides a snapshot of utility, including listings of leadership, comparative highlights, year in review, and description of their environmental stewardship.