Minigrid integration in sub-Saharan Africa - identifying the 'optimal' point of connection

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

Abstract

Considering the effort and resources dedicated towards the Sustainable Development Goal number seven (SDG7) of "ensuring energy access for all", a post-2030 sub-Saharan Africa will be filled with a range of network solutions - main grids, minigrids and nano-grids. In time, some of the smaller networks will expand while others will be abandoned for better and resilient energy sources. However, such integration will pose technical challenges as most off-grid systems are designed and sized without any consideration of the main grid or other off-grid systems. This paper proposes that the identification of grid feedin point into the minigrid network will be one of the critical decisions in integrating the main grid with once autonomous minigrids. Using power flow simulations of case study networks, results indicate that technical parameters such as losses and voltage drops on the local network vary significantly with choice of feed-in point, influencing the performance of the local network as well as its ability to accommodate more distributed energy resources in future. Based on these results, initial recommendations are made concerning the interconnection of such networks.
Original languageEnglish
Title of host publication6th IEEE International Energy Conference (ENERGYCon)
Place of PublicationPiscataway, N.J.
PublisherIEEE
Pages625-630
Number of pages6
ISBN (Electronic)9781728129563
DOIs
Publication statusPublished - 29 Oct 2020
Event6th IEEE International Energy Conference (ENERGYCON) - Gammarth, Tunisia
Duration: 13 Apr 202016 Apr 2020

Conference

Conference6th IEEE International Energy Conference (ENERGYCON)
Country/TerritoryTunisia
CityGammarth
Period13/04/2016/04/20

Keywords

  • distributed power generation
  • local network
  • power generation economics
  • power grids

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