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Weathering the winter with energy efficiency

06 June 2019 | Story Valentino Ndaba | Photo Rian Horn

Solar Panels at UFS Qwaqwa Campus — Revolutionising electricity with sun power: Solar panels at the Qwaqwa Campus.

Over the past few years the University of the Free State (UFS) has been planting panels, now the time has come to reap. Solar farms produced a return on investment in the form of R1.4 million in savings as a result of photovoltaics (PV) between January and March 2019. Nicolaas Esterhuysen, an electrical engineer at the Department of University Estates also reported a 2.34% decline in electricity usage between 2013 and 2018.

Solar panels are the future

According to Esterhuysen, the solution to a power crisis lies in “either becoming more energy efficient or generating our own at a cheaper cost”. All campuses have managed to save a total of R5.4 million in 2018 through producing our own power (solar PV) and actively managing the instantaneous load demand with building management system (BMS) software.

Overall, ground-mounted PV installations at all campuses contribute 2609 kilowattpeak (kWp) under standard conditions. The Bloemfontein Campus accounts for 979kWp of that amount while the South Campus generates 762kWp, with the Qwaqwa Campus producing 748kWp, and the Paradys experimental farm bringing in 120kWp to the grand total (to be commissioned June 2019).

Rooftop PVs generate electricity through the 80kWp Muller Potgieter Building, the 255kWp Bloemfontein Campus computer lab, the 35kWp Qwaqwa Campus computer lab, 135kWp Qwaqwa Campus Mandela Hall, and 416kWp Thakaneng Bridge panels. This is a total of 921kWp.

Winter is coming with tariff terrors

A 15.63% electricity tariff increase is projected this year in light of the annual winter adjustments commissioned by Eskom and Centlec. To gear up for the associated spike in power use over this season, University Estates advises the Kovsie community to use energy efficiently. “Think twice before switching on the heating and make sure to switch it off when you leave the office,” advises Esterhuysen.

In addition to generating electricity, saving initiatives such as implementing light-emitting diode (LED) lighting with motion sensors and actively managing demand at peak times have been implemented.

What’s next?

The next step is to rethink dated mechanical installations that are used to heat some of our older buildings. Replacing similar installations across all of the campuses are some of the ways the university intends to escalate energy efficient in future.

News Archive

Newton Fellow at UFS focuses on land and labour

2017-10-28

Dr Rory Pilossof
Photo: Charl Devenish

Dr Rory Pilossof is a senior lecturer in economics at the University of the Free State (UFS), a Postdoctoral Fellow at the International Studies Group at UFS, and a Research Fellow at the University of Kent in the UK.

He became interested in his research field when he studied land reform and land issues in Zimbabwe for his PhD at the University of Sheffield. From there, his research interests have expanded to look at other issues connected to land, such as whiteness and labour.

Dr Pilossof's study field links up with the important issue of land reform in Southern Africa due to its past colonialism and post-colonial politics of land and land ownership. These intersect with a wide range of labour issues that are pressing in the region. He has a keen interest in elite transitions and changes in economic structure in Southern Africa since the 1960s.

Dr Pilossof was nominated to the South African Young Academy of Science in 2017, and received an NRF Y1 rating during 2017. He is also a member of the Amsterdam-based International Institute for Social History’s ‘Global Collaboratory on the History of Labour Relations’. He is a participant in the Leverhulme Trust-funded initiative ‘Comparative History of Political Engagement in Western and African Societies Programme’ at the University of Sheffield.

Dr Pilossof's primary research focuses on issues of land, labour and changing social and economic structures in Zimbabwe and South Africa. He is also interested in finding alternative ways of looking at change. To this end, he has studied various newspapers and periodicals in the region.

Currently, he spends most of his research time as part of a three-year British Academy-funded Advanced Newton Fellowship into labour relations and occupational structures. In future, he wants to expand his research in the labour field by looking at labour and migration in the region over the course of the 20th century.

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