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Estimation of cost of unserved energy: a customer survey approach

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Abstract

The investment in a power system to satisfy the energy needs of its customers must be justified by the reliability worth to the customers. It is therefore very important to obtain a good estimate of the cost of unserved energy in order to determine the appropriate level of investment in the system facilities during system planning. This paper presents the results of a recent customer survey conducted in a developing country to estimate the costs associated with various types of power outages. The results are then used to estimate the cost of energy not served considering different types of customers. The customer’s survey for residential, industrial and commercial customer categories in Nepal were carried out in 2008–2010 respectively. Three years of outage data were obtained for two selected feeders in urban, semi-urban and semi-rural areas of Kathmandu valley. The results obtained for the different areas considering the different customer mix are presented in the paper.

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Acknowledgments

The authors acknowledge the financial support extended by Nepal Electricity Authority for carrying out the customers’ survey in three phases. The cooperation and support from NEA officials, namely Mr. Diwakar Poudel, Mr. Lava Bahadur Ghimire, Mr. Jayandra Shrestha and Mr. Suman Thapa is appreciated.

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Authors and Affiliations

  1. Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India

    Nava Raj Karki & A. K. Verma

  2. Department of Electrical Engineering, Institute of Engineering, Kathmandu, Nepal

    Nava Raj Karki

  3. Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, Canada

    Rajesh Karki

Authors
  1. Nava Raj Karki
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  2. Rajesh Karki
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  3. A. K. Verma
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Correspondence to Nava Raj Karki.

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Karki, N.R., Karki, R. & Verma, A.K. Estimation of cost of unserved energy: a customer survey approach. Int J Syst Assur Eng Manag 1, 157–162 (2010). https://doi.org/10.1007/s13198-010-0022-9

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  • DOI: https://doi.org/10.1007/s13198-010-0022-9

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