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Economic Impact of Electricity Interruptions: A Case Study Based on Sri Lanka

Received: 24 December 2021     Accepted: 22 January 2022     Published: 18 March 2022
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Abstract

A power system responsible to supply reasonable level of reliable, qualitative electricity supply to its consumers in an acceptable price. Reasonable level is defined as one balancing the need for power supply and the cost involved. This includes increasing adequacy and security of the system. If the frequency and duration of outages can be reduced, the benefit can be given to consumers. Cost of Unserved Energy is considered as a basic parameter of economic evaluation in the process of increasing the power system reliability. Initial research was conducted before two decades ago and now it is needed to conduct a study of up-to-date on the scope. Thus, research to assess the cost of Unserved Energy for Sri Lanka was conducted and the outcome of the research is presented in this research paper. Consumer survey is chosen as the methodology of the research and it is conducted into three separate electricity consumer categories of domestic, industrial and Commercial. Each category is sub-grouped according to different classifications and separate results have shown for momentary planned and unplanned and non-momentary planned and unplanned interruptions. Finally, the results of each category are averaged into two final values one each for each classification considered.

Published in American Journal of Electrical Power and Energy Systems (Volume 11, Issue 1)
DOI 10.11648/j.epes.20221101.11
Page(s) 1-10
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Unserved Energy, Cost of Unserved Energy Consumer Survey, GDP, Electricity Interruptions

References
[1] Central Bank of Sri Lanka, "Annual Report," Central Bank of Sri Lanka, Colombo, 2019.
[2] The Generation Planning Unit, Transmission and Generation Planning Division, "Long Term Generation Expansion Plan 2018-2037," Ceylon Electricity Board, Colombo, 2017.
[3] U. Minnaar, "Cost of Unserved Energy," WattNow Magazine, October 2015.
[4] S. Kufeoglu, "Economic Imacts of Electric Power Outages and Evaluation of Customer Interruption Costs," Department of Electrical Engineering and Automation Power Systems and High Voltage Engineering, Aalto University, Finland, 2015.
[5] G. H. Kjolle, K. Samdal, B. Singh and O. A. Kvitastein, "Consumer Costs Related to Interruptions and Voltage Problems: Methodology and Results," IEEE Transactions on Power Systems, vol. 23, no. 3, pp. 1030-1038, 2008.
[6] M. L. Sinan Kufeoglu, "Interruption Costs of Service Sector Electricity Customers, a Hybrid Approach," Electrical Power and Energy Systems, vol. 64, pp. 588-595, 2015.
[7] TERI, "Cost of Unserved Energy Final Report," Tata Energy Research Institute, New Delhi, 2001.
[8] W. Methsiri, "Evaluation of National Cost of Electricity Interruptions in Sri Lanka," University of Moratuwa, Moratuwa, 1990.
[9] W. L. S. Fernando and P. D. C. Wijayatunga, "Evaluation of Cost of Unserved Energy in Sri Lanka," pp. 208-216, 1996.
[10] NEXANT, "Assessment of Economic Impact of Poor Power Quantity on Industry - Sri Lanka," USAID- SARI Energy Programme, 2002.
[11] D. P. Colambage, W. H. Eranga, V. H. W. M. K., K. M. V. J. Senaratne and H. Y. R. Perera, "Assessment of Cost of Unserved Energy for Sri Lankan Industries," in ICEEOT, Tamil Nadu, 2016.
[12] D. P. Colambage and H. Y. R. Perera, "Assessment of Cost of Unserved Energy for Sri Lankan Industrial Sector," in IESES, Hamilton, 2018.
[13] D. P. Colambage and H. Y. R. Perera, "Assessment of Cost of Unserved Energy for Sri Lankan Commercial Sector," in MERCon, Moratuwa, 2018.
[14] Department of Census and Statistics, "Household Income and Expenditure Survey 2009-10," Ministry of Finance and Planning of Sri Lanka, Colombo, 2011.
[15] M. Hofmann, H. Selijeseth, G. H. Volden and G. H. Kjolle, "Study on Estimation of Costs due to Electricity interruptions and Voltage Disturbances," in SINTEF Energy Rearch, 2010.
[16] Ernest Orlando Lawrence Berkeley National Laboratory, "A Framework and Review of Customer Outage Costs: Integration and Analysis of Electric Utility Outage Cost Surveys," The office of Electric Transmission and Distribution, US Department of Energy, California, 2003.
[17] Concept Economics Pvt Ltd, "Investigation of the Value of Unserved Energy- Stage 1," New Zealand Centre for Advanced Engineering, Wellington, 2008.
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  • APA Style

    Dimuthu Punsara Colambage. (2022). Economic Impact of Electricity Interruptions: A Case Study Based on Sri Lanka. American Journal of Electrical Power and Energy Systems, 11(1), 1-10. https://doi.org/10.11648/j.epes.20221101.11

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    ACS Style

    Dimuthu Punsara Colambage. Economic Impact of Electricity Interruptions: A Case Study Based on Sri Lanka. Am. J. Electr. Power Energy Syst. 2022, 11(1), 1-10. doi: 10.11648/j.epes.20221101.11

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    AMA Style

    Dimuthu Punsara Colambage. Economic Impact of Electricity Interruptions: A Case Study Based on Sri Lanka. Am J Electr Power Energy Syst. 2022;11(1):1-10. doi: 10.11648/j.epes.20221101.11

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  • @article{10.11648/j.epes.20221101.11,
      author = {Dimuthu Punsara Colambage},
      title = {Economic Impact of Electricity Interruptions: A Case Study Based on Sri Lanka},
      journal = {American Journal of Electrical Power and Energy Systems},
      volume = {11},
      number = {1},
      pages = {1-10},
      doi = {10.11648/j.epes.20221101.11},
      url = {https://doi.org/10.11648/j.epes.20221101.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.epes.20221101.11},
      abstract = {A power system responsible to supply reasonable level of reliable, qualitative electricity supply to its consumers in an acceptable price. Reasonable level is defined as one balancing the need for power supply and the cost involved. This includes increasing adequacy and security of the system. If the frequency and duration of outages can be reduced, the benefit can be given to consumers. Cost of Unserved Energy is considered as a basic parameter of economic evaluation in the process of increasing the power system reliability. Initial research was conducted before two decades ago and now it is needed to conduct a study of up-to-date on the scope. Thus, research to assess the cost of Unserved Energy for Sri Lanka was conducted and the outcome of the research is presented in this research paper. Consumer survey is chosen as the methodology of the research and it is conducted into three separate electricity consumer categories of domestic, industrial and Commercial. Each category is sub-grouped according to different classifications and separate results have shown for momentary planned and unplanned and non-momentary planned and unplanned interruptions. Finally, the results of each category are averaged into two final values one each for each classification considered.},
     year = {2022}
    }
    

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    AU  - Dimuthu Punsara Colambage
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    T2  - American Journal of Electrical Power and Energy Systems
    JF  - American Journal of Electrical Power and Energy Systems
    JO  - American Journal of Electrical Power and Energy Systems
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    UR  - https://doi.org/10.11648/j.epes.20221101.11
    AB  - A power system responsible to supply reasonable level of reliable, qualitative electricity supply to its consumers in an acceptable price. Reasonable level is defined as one balancing the need for power supply and the cost involved. This includes increasing adequacy and security of the system. If the frequency and duration of outages can be reduced, the benefit can be given to consumers. Cost of Unserved Energy is considered as a basic parameter of economic evaluation in the process of increasing the power system reliability. Initial research was conducted before two decades ago and now it is needed to conduct a study of up-to-date on the scope. Thus, research to assess the cost of Unserved Energy for Sri Lanka was conducted and the outcome of the research is presented in this research paper. Consumer survey is chosen as the methodology of the research and it is conducted into three separate electricity consumer categories of domestic, industrial and Commercial. Each category is sub-grouped according to different classifications and separate results have shown for momentary planned and unplanned and non-momentary planned and unplanned interruptions. Finally, the results of each category are averaged into two final values one each for each classification considered.
    VL  - 11
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Author Information
  • Department of Electrical Engineering, University of Moratuwa, Moratuwa, Sri Lanka

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