Development of criteria and calculation of Korean industrial customer interruption costs
ABSTRACT This paper presents the results of direct interview survey of Korean industrial customers conducted to evaluate the direct, short-term impacts and costs resulting from local random electrical supply interruptions. The cost is evaluated using the questionnaires authors designed, which are mainly on the experience or preparatory actions consumers predicted they would take. Economic evaluation of reliability that traditionally takes into account duration and frequency of interruption does not accurately reflect the lost value or economic impacts of industrial customer, especially large size, caused by any kind of interruption. So, to imply the substantial difference in costs incurred by different customer group, the authors apply the international standards, i.e. IEC, IEEE, of the recent classification of interruption to reflect the difference of interruption characteristics on the questionnaires for the analysis of the interruption cost.
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ABSTRACT: This paper presents the results of an investigation of the direct short term impacts and costs incurred by coxmercial and small industrial customers resulting fram local random supply interruptions. The study used a mail survey to determine the customer assessment of electric service interruptions. The variation in interruption cost with the characteristics of interruptions, such as duration, time of day, week of year, advanced warning and reliability history, and with the characteristics of the users was also investigated. A condensation of these results are included in the paper.IEEE Transactions on Power Apparatus and Systems 03/1984;
Article: Value of service reliability[show abstract] [hide abstract]
ABSTRACT: The authors present the value of service (VOS) reliability evaluation approach, which explicitly incorporates into the planning process customer choices regarding reliability `worth' and service costs. Using the least-cost planning framework and taking advantage of the recent advances in the quantification of outage costs, this approach determines the optimal level of reliability for the utility and its customers. The approach considers system operational measures-the so-called emergency actions-that the operators invoke in times of dwindling reserves. Information on customer outage costs associated with such actions is incorporated using a probabilistic framework. This approach permits utilities to plan for levels of reliability commensurate with the customers' willingness to pay. The application of this methodology to planning problems is discussed. Numerical results for a large utility are presentedIEEE Transactions on Power Systems 09/1990; · 2.92 Impact Factor
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ABSTRACT: This work deals with the customer perspective of service reliability. In particular, given the changes in the electric utility industry's cost structure in recent years, there is a growing feeling that investments related to the provision of electric service reliability should be carefully evaluated as regards their cost and benefit implications. Such an explicit cost-benefit analysis provides the basis for answering the economic question of how much reliability is adequate from the customer's perspectiveIEEE Transactions on Power Systems 12/1990; · 2.92 Impact Factor