SAIPPA Webinar - 14 March 2024

12:00 - 14:00
Purpose and objective of the Webinar:
An IRP is a living process that considers technical solutions to ensure supply meets demand. The process, including inputs and assumptions, should be transparent and housed by neutral institutions. The scientific process should be open to scrutiny. South Africa is in an electricity crisis and the IRP should speak directly to the crisis, in short, how to fill the gap. There are many moving and sometimes conflicting parts, the IRP should assist decision makers, and the country, to understand the necessary trade-offs and move forward the energy landscape in South Africa. The IRP needs to evolve with the market.


Warrick Pierce:
Warrick is a qualified mechanical engineer and an energy economist with over a decade’s experience in energy consulting and research. He holds 3 master’s in engineering, RE and Energy Modelling. He has focussed on the electricity supply industry, specifically in South Africa but also in other African countries. Roles have included energy economist, lead energy systems modeller, technical lead, technical transaction advisor, academic supervisor. He has experience in both the private and public sector. The latter includes an eight-month secondment to the South African IPP Office and various electricity supply studies for local municipalities and government. He was recently a Principal Researcher for Energy Systems at the CSIR and a member of the Presidency’s Electricity Crisis Committee (NECOM).

Joanne Calitz:
Joanne holds a master’s in electrical engineering and has over a decade of experience in energy systems modelling. Commencing her career at Eskom, she was responsible for modelling the Medium-Term System Adequacy Outlook and conducted numerous long-term planning studies for South Africa. She later joined the CSIR where she published multiple energy systems studies, including least-cost electricity planning and production cost modelling for both the private and public sector. Joanne currently leads the Energy System Optimization team at ENERTRAG, where she spearheads the optimization of Power-to-X projects on a global scale. She is an expert in various energy modelling software tools, including open-source Python-based models and PLEXOS. 

Prof Wikus van Niekerk:
Prof Wikus van Niekerk is the Dean of Engineering at Stellenbosch University.  He holds a PhD from the University of California at Berkeley and an Executive MBA from the Graduate School of Business at the University of Cape Town.  He was the Founding Director of the Centre for Renewable and Sustainable Energy Studies.

Time 14 March 12h00- 14h00 - online
  1. Introduction, welcome and house rules - SAIPPA  (10 min)
  2. Modelling principles for the IRP in SA - Warrick Pierce (40 min)
  3. Important considerations for the IRP in SA – lessons and going forward – Joanne Calitz  (20 min)
  4. Summary and take aways - Prof Wikus van Niekerk (15 min)
  5. Q&A (20min)
  6. Closing remarks SAIPPA

Register in advance for this webinar, by entering your email address below. This webinar will be hosted on the Zoom platform. A link to the platform will be sent to registered delegates closer to the date.

Terms and Conditions:
Please contact the SAIPPA Secretariat if you are unable to attend - Dion Abrahams ( or Andrew Nkosi ( or contact 011 061 5000