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Dynamics Of Electricity Demand In Lesotho: A Kalman Filter Approach

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  • THAMAE Retselisitsoe Isaiah

    (National University of Lesotho)

  • THAMAE Leboli Zachia

    (National University of Lesotho)

  • THAMAE Thimothy Molefi

    (National University of Lesotho)

Abstract

This study provides an empirical analysis of the time-varying price and income elasticities of electricity demand in Lesotho for the period 1995-2012 using the Kalman filter approach. The results reveal that economic growth has been one of the main drivers of electricity consumption in Lesotho while electricity prices are found to play a less significant role since they are monopoly-driven and relatively low when compared to international standards. These findings imply that increases in electricity prices in Lesotho might not have a significant impact on consumption in the short-run. However, if the real electricity prices become too high over time, consumers might change their behavior and sensitivity to price and hence, energy policymakers will need to reconsider their impact in the long-run. Furthermore, several exogenous shocks seem to have affected the sensitivity of electricity demand during the period prior to regulation, which made individuals, businesses and agencies to be more sensitive to electricity costs. On the other hand, the period after regulation has been characterized by more stable and declining sensitivity of electricity demand. Therefore, factors such as regulation and changes in the country’s economic activities appear to have affected both price and income elasticities of electricity demand in Lesotho.

Suggested Citation

  • THAMAE Retselisitsoe Isaiah & THAMAE Leboli Zachia & THAMAE Thimothy Molefi, 2015. "Dynamics Of Electricity Demand In Lesotho: A Kalman Filter Approach," Studies in Business and Economics, Lucian Blaga University of Sibiu, Faculty of Economic Sciences, vol. 10(1), pages 130-139, April.
    • Handle: RePEc:blg:journl:v:10:y:2015:i:1:p:130-139
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    References listed on IDEAS

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    5. Klug, Thomas W. & Beyene, Abebe D. & Meles, Tensay H. & Toman, Michael A. & Hassen, Sied & Hou, Michael & Klooss, Benjamin & Mekonnen, Alemu & Jeuland, Marc, 2022. "A review of impacts of electricity tariff reform in Africa," Energy Policy, Elsevier, vol. 170(C).
    6. Thamae, Leboli Z. & Thamae, Retselisitsoe I. & Thamae, Thimothy M., 2015. "Assessing a decade of regulatory performance for the Lesotho electricity industry," Utilities Policy, Elsevier, vol. 35(C), pages 91-101.
    7. Ambreen ZEB & Khadim HUSSAIN & Usman AHMAD & Muhammad AJMAIR, 2017. "Factors affecting the services sector growth in Pakistan: A time varying parametric approach," Journal of Economics Library, KSP Journals, vol. 4(3), pages 388-395, September.
    8. Masike, Kabelo & Vermeulen, Cobus, 2022. "The time-varying elasticity of South African electricity demand," Energy, Elsevier, vol. 238(PC).

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