The 6th Annual STERG Symposium took place on the 18th of July 2019 and the 19th of July 2019. We would like to thank all our sponsors, speakers and attendees! Some 23 research presentations were featured at the symposium this year, delivered by delegates from Stellenbosch University (SU), the University of Pretoria (UP), the University of the Free State (UFS) and the Vaal University of Technology (VUT). The event was co-hosted with the 10th Renewable Energy Postgraduate Symposium (REPS), organised by the Centre for Renewable and Sustainable Energy Studies (CRSES). REPS covers a broad range of energy technology, policy and economics research topics.

Delegates and speakers at the 6th Annual STERG Symposium in Stellenbosch (19 July 2019): Credit – Liesel Koch

Three keynote addresses were provided by SolarPACES (delivered by Dr Matti Lubkoll on behalf of Mr Somila Xosa, South Africa’s ExCo representative) and Dr Willem Le Roux (UP) and Prof Johan van der Spuy (SU) speaking about respective university based technology research projects in the CSP sector. The presentations provided an excellent overview of local and global developments and dynamics in the CSP markets and of CSP technologies.

A diverse programme of industry presentations provided a timely update on challenges and successes in constructing and operating CSP plants, as well as industrial applications for high temperature solar heat and lessons arising from the PV industry. The ensuing panel discussion led by Prof Sampson Mamphweli saw industry participants engage with students and academics and offer their perspectives on developments in the global CSP markets.


Download the presentations from the symposium in the links below:

Thursday, 18.07.2019

Opening Keynote Address

  • Mr Somila Xosa (delivered by Dr Matti Lubkoll) – An introduction to SolarPACES and an overview of the status, trends and developments in the global CSP markets

Panel Session – Bridging innovation and commercial viability

Session 1: Techno-economic Analysis & Network Integration

Session 2: Optics and Unmanned Aerial Vehicles

Keynote Address:

Session 3A: Gas Power Cycles & Turbomachinery

Session 3B: Industrial Process Heat

Session 4A: Numerical Modelling of Cooling Systems

Session 4B: Heat Transfer in Solar Receivers

Friday, 19.07.2019

Session 1: Opening, industry presentations & Keynote Address

Session 2: Industry presentations

For presentations from previous STERG SolarPACES Symposiums (2013-2017) click here. The presentations from the 10th Annual Renewable Energy Postgraduate Symposium (REPS) can be viewed here.


Contact Information

For all questions with regards to the the 6th Annual STERG Symposium please feel free to contact Mr Matthew Meas (


The 6th Annual STERG Symposium is endorsed by SolarPACES.

Event Sponsors

Many thanks to our sponsors:

Renew Energy Logo RGB WvNGeoSUN itm_logo1


Research Group Sponsors

Many thanks to the sponsors of the research group:

SASOLDepartment of Science and Technology