A Survey Study on Estimation of Customer Interruption Costs

The objective of this study is to estimate customer interruption cost by analyzing survey responses and comparative examination between it and the estimation value by the economic macro method or the example of America and Canada. The power interruption cost is considered as one of the useful index for evaluating the expansion planning or the operation of power system facilities from reliability. It is also considered to become more important index in the recent development of integrated resource planning in which both supplier's and customer's resources are equally dealt with. This paper reports the estimation results of customer interruption costs based on the three years survey from 1992 to 1994 conducted in HOKKAIDO and for various kinds of customers.