Renewable Energy Storage in the Republic of South Africa

A.J. van der Walt, J.H.C. Pretorius and J.H. Enslin

 

2018/04/20

Abstract

The objectives were to perform extensive research on the South African Renewable Energy Storage capabilities and business case. The focus was to investigate the advantages it would bring to the country to invest in energy storage solutions to aid in not only meeting the electricity demand
forecast for the next 25 to 40 years, but also focusing on the energy dips, known as the “Duck Curve”. This could provide flexibility to the National Grid in parallel with reducing the carbon footprint of the current generating stations and the transmission-and distribution networks by either remodelling them, or to completely replace them with a better solution such as renewable energy with
storage. The final expected output of the research would be to develop a basic spreadsheet calculator that is capable of calculating the energy and financial impact it would have when integrating a certain amount of storage into the national grid.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 16)
Pages: 522-527 Date of Publication: 2018/04/20
ISSN: 2172-038X Date of Current Version:2018/03/23
REF: 375-18 Issue Date: April 2018
DOI:10.24084/repqj16.375 Publisher: EA4EPQ

Authors and affiliations

A.J. van der Walt1, J.H.C. Pretorius1 and J.H. Enslin1, 2
Postgraduate School of Engineering Management
1. University of Johannesburg, Johannesburg, South Africa
2. Clemson University, Charleston, USA

Key words

Energy Storage, Duck Curve, Power, Renewable Energy, Integrated Resource Plan (IRP), Republic of South Africa (SA).

References

[1] S. DOE, "Integrated Resource Plan for Electricity of South Africa (IRP) Update Report," DOE, 2013.
[2] NERSA, "The South African Grid Code: The System Operator Code," NERSA, 2010.
[3] S. DOE and IRP2010 Update, "Integrate Resource Plan Update - Assumptions, Base Case Results and
Observations," DOE, 2016.
[4] S. DOE, "State of Renewable Energy in South Africa," Department of Energy, Pretoria, 2015.
[5] E. H. S. Ltd., "Transmission Development Plan 2016 – 2025 Presentation," Eskom Holdings SOC Ltd., 2016.
[6] E. H. S. Ltd., "Transmission Development Plan 2012 – 2021”, GP Report 11/139," Eskom Holdings SOC Ltd.
[7] E. H. S. Ltd., "Ancillary Services Technical Requirements for 2017/18 – 2021/22," Eskom Holding SOC Ltd., 2016.
[8] NERSA, "Grid Connection Code for Renewable Power Plants (RPP’s) Connected to the Electricity Transmission
System (Ts) or the Distribution System (Ds) in South Africa," NERSA, 2014.
[Online].Available:http://www.nersa.org.za/Admin/Document/Editor/file/Electricity/TechnicalStandard.
[9] E. H. S. Ltd., "A Feasibility Study on the use of Renewable Energy Sources for Black Start," Eskom, 2015.
[10] DOE, Electricity Storage Handbook in Collaboration with NRECA, Sandia National Laboratories, 2015.
[11] R. Johnson, "Energy Storage Benefits for Africa," 05 2016. [Online]. Available:
https://www.esiafrica.com/wp-content/uploads/2016/05/Randell-Johnson.pdf.
[12] U. S. T. D. A. Parsons, "South Africa Energy Storage Technology and Market Assessment," US Trade and
Development Agency and Parsons, 2017.