Analyzing the effectiveness of overhaul maintenance in the energy sector: A critical review

Shocky Seloane, Ndala Yves Mulongo, Clinton Aigbavboa

Research output: Contribution to journalConference articlepeer-review


Regardless of the overhaul outages planned with the aim of preventing failures on the energy plants in South Africa, it is witnessed not to be effective based only on the production ratio outcomes. The production ratio, as per the South African power enterprise is 80:10:10. The ratio is based on 80 % availability, the only fixed figure of 10% planned maintenance and 10 % unplanned maintenance of the power plants. The production ratio on most South African power station is not close to the above mentioned ideal ratio as witnessed on some stations whereby the station's ratio is recorded at 55:10:35. Overhaul maintenance on equipment are ideally rolled out as a failure preventative measure to prevent unplanned maintenance and thus ensure satisfactory availability of the power generating plant. In this paper, we illustrate the effectiveness and benefits of maintenance operations or strategies. Although numerous studies have been conducted over the past two decades to analyze effectiveness of maintenance strategies, there remains a gap in the current overview. Therefore, the objective of this paper is to conduct a theoretical assessment on the effectiveness of overhaul maintenance in the energy sector. The results of the critical analysis of the current literature on the subject matter, clearly demonstrates that there are flaws in the current body of knowledge related to a lack of boiler and quantitative studies.

Original languageEnglish
Pages (from-to)1562-1568
Number of pages7
JournalProceedings of the International Conference on Industrial Engineering and Operations Management
Issue numberSEP
Publication statusPublished - 2018
Event3rd North American IEOM Conference. IEOM 2018 -
Duration: 27 Sept 201829 Sept 2018


  • Boilers
  • Energy Sector
  • Maintenance strategies

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering


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