Webinar presentations and video recording: "Energy storage and flexible generation to support variable renewable energy, diversification, grid services and resilience in South Africa"


Peter Atkins
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Dear Colleagues

For those who registered to attend and/or who attended the :

4th webinar in 2020 hosted by Nedbank, the Joburg Centre of Software Engineering (JCSE) at Wits University, and  EE Business Intelligence (EEBI) on:

“Energy storage and flexible generation to support variable renewable energy, diversification, grid services and resilience in South Africa”

Hosted by

Nedbank, the Joburg Centre for Software Engineering (JCSE) at Wits University, and EE Business Intelligence

DATE: Thursday 19 November 2020              TIME: 12h00 to 14h30                    COST: No cost, free-of-charge

Moderated by: Thabang Chiloane, Executive Head: Group Strategic Relations and Public Affairs at Nedbank; and Chris Yelland, Managing Director at EE Business Intelligence.

Please find below the presentations, video recording and details of the webinar for your records.


Central to our electrical future will be the interaction between variable wind and solar energy generation, the four pumped-storage stations in South Africa, battery energy storage and gas-to-power.

This seminar explored the critical role of energy storage in the form of battery storage and the pumped storage stations in South Africa in providing auxiliary services and complimenting renewable energy and gas-to-power in electricity grids today and in the future.

Presentations at the webinar

Full slide deck of all presentations
Slide presentation by Frederic Verdol, World Bank
Slide presentation by Clyde Mallinson, Consultant
Slide presentation by Crescent Mushwana, CSIR Energy Centre
Slide presentation by Alessandro Sessa, Enel Green Power

Audio/video recording of the webinar

The audio/video recording of the webinar can be viewed here. For ease of reference the following is a breakdown of the various sections of the webinar which are accessible at the following times in the video (hh:mm:ss):

00:00:00 Welcome by Thabang Chiloane, Nedbank
00:03:57 Introduction by Chris Yelland, EE Business Intelligence
00:09:22 Presentation by Frederic Verdol
00:31:58 Presentation by Clyde Mallinson
00:48:20 Presentation by Crescent Mushwana
01:13:40 Presentation by Alessandro Sessa
01:43:01 Question and answer session
02:12:30 Thanks and closure

Independent published articles on the webinar

World Bank says ‘flagship’ Eskom battery scheme to open way for private investment in the technology – Terence Creamer, Engineering News
How viable battery storage will boost a shift to renewables – by Lameez Omarjee, Fin24

The presenters

Clyde Mallinson, Consultant
Clyde Mallinson is an energy consultant, and over the past decade has focused on renewable energy and storage technologies. Before this, he was a founder member, owner and analyst for two unit trust funds listed on the Frankfurt stock exchange: the Earth Exploration Fund and the Earth Energy Fund. Prior to this, he consulted mainly to the resources industry in ore resource evaluation and techno-economics of mineral resources. He was head of department of GIS and remote sensing at Fort Hare University, and also lecturer at Rhodes University in the Geology Department.

Crescent Mushwana, CSIR Energy Centre
Crescent Mushwana holds a MEng Degree in Electrical Engineering from the University of the Witwatersrand. He is currently employed by the Council for Scientific and Industrial Research (CSIR) as a Research Group Leader (Energy Systems) in the Energy Centre, where he leads a group of researchers focusing of energy planning and power system planning operations for a future decarbonised energy system. Before joining the CSIR, he was working for Eskom in Transmission Grid Planning.

Frederic Verdol, World Bank
Frederic Verdol is a Senior Power Engineer at the World Bank, based in Pretoria, where he is managing the South Africa and Lesotho Energy portfolios. Before this, he managed large infrastructure investment projects, like the Inga hydropower plant rehabilitation in DRC or the Haiti post-earthquake energy infrastructure reconstruction. Prior to the World Bank, he was at the French power utility, EDF, successively Head of the R&D Research on EU gas markets, and Head of the French islands power systems operation and planning. Frederic holds a nuclear engineering degree and a systems optimisation master’s degree from Paris School of Mines.

Alessandro Sessa, Enel Green Power
Alessandro Sessa is currently the Head of Storage Business Development in the Asia Pacific, Africa and Middle East regions at Enel Green Power. Before this, he was in charge of Thermal Generation Business Development in South Africa, and was part of the power market analysis team defining group strategy in emerging markets and new businesses. Prior to business development, he acted as an independent management advisor on nuclear safety, and for implementing best practices across the Enel nuclear portfolio. Alessandro holds a Master’s Degree in energy and nuclear engineering.


Prior to the webinar at 12h00 on Thursday 19 November 2020, there were about 1200 online registrations for the webinar. Attendance on the day peaked at about 640 attendees.

Next webinar

The next webinar hosted by Nedbank, the  Joburg Centre of Software Engineering (JCSE) at Wits University and  EE Business Intelligence (EEBI) will take place on Thursday 10 December 2020 from 12h00 to 14h30 on the subject of: “Broadening access to the Internet in South Africa with ICT infrastructure investment in SA municipalities”.

Local Government has a key role to play in driving “the last mile” of broadband connectivity. This is the focus of the 2nd dialogue. Interesting recent case studies, such as the City of Tshwane, will be discussed as a way of highlighting how Local Government is looking at a coordinated roll-out of ICT infrastructure.

We look forward to seeing you at the next webinar – details and speakers to be announced shortly. Watch this space!

Kind regards

Tula Dlamini, Nedbank, Email:
Chris Yelland, EE Business Intelligence, Email:
Prof Barry Dwolatzky, JCSE, Email:

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