Multi-feeder minigrid loading index - a prequalifier to rigorous grid integration planning of minigrids

Madalitso Chikumbanje, Damien Frame, Stuart Galloway

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

To achieve electricity access in developing countries, grid extension and off-grid energy solutions, such as minigrids, are employed. Recent evidence from Southeast Asia has indicated that the grid continues to expand and converges with minigrids beyond achieving electricity access. Such convergence is associated with policy, regulatory and technical challenges. For example, one of the technical challenges related to grid integration of minigrids is the lack of appropriate methods for their optimal planning. Previous research demonstrates that identifying an optimal point of grid infeed into a minigrid improves the loss reduction of the integrated network. However, the method for identifying grid infeed points requires a detailed power system analysis to be conducted for each minigrid integrating with the main grid. This paper introduces a loading index that can operate as a ‘rule of thumb’ for pre-assessing the need for a detailed grid integration study. The presented index is demonstrated for two case studies, and its accuracy on different minigrid conditions is also discussed.
Original languageEnglish
Title of host publication2022 IEEE PES/IAS PowerAfrica
Place of PublicationPiscataway, NJ
PublisherIEEE
Number of pages5
Publication statusPublished - 26 Aug 2022
Event2022 IEEE PES/IAS PowerAfrica Conference - , Rwanda
Duration: 22 Aug 202226 Aug 2022
https://ieee-powerafrica.org/

Conference

Conference2022 IEEE PES/IAS PowerAfrica Conference
Country/TerritoryRwanda
Period22/08/2226/08/22
Internet address

Keywords

  • minigrids
  • grid integration
  • DERs
  • SDG7
  • electricity access
  • convergence

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