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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

UFS academics to present papers at Conference on Calvin Research

2010-07-05

Prof. Dolf Britz, Director: Jonathan Edwards Center Africa at the UFS, will be one of three UFS keynote speakers at the 10th International Congress on Calvin Research.
Photo: Provided

Three scholars from the University of the Free State (UFS) were invited to participate as keynote speakers at the 10th International Conference on Calvin Research that will be hosted by the UFS from 22-27 August 2010.

“Hosting this conference is seen as an exceptional achievement since the conference represents an international, high-profiled and specialised research community where invitation to present research results is based on proven academic outputs, innovation and original research,” said Prof. Dolf Britz, Director: Jonathan Edwards Center Africa at the UFS. Prof. Britz will, as keynote speaker, present a paper on Calvin's exposition of a Biblical text that played a significant role in the ‘Freedom Struggle’ in South Africa.

The programme for the Conference on Calvin Research also provides for two workshops specially designed for postgraduate students. This will be facilitated by international scholars and the focus will be on research methodology and the academic competencies to write a dissertation.

A student from the UFS, Rev. Ntabanyane Tseuao, was selected to present a short paper at the conference. He is one of three postgraduate students who are from the Theological University Apeldoorn in the Netherlands and the University of Tübingen in Germany, respectively.

Prof. Erik de Boer, an Extraordinary Professor and Research Fellow at the UFS and Mr Eric Kayayan, a Research Fellow at the UFS, will also be keynote speakers at the conference.

Two other academics from the UFS, Prof. Adriaan Neele, an Extraordinary Professor and Research Fellow and Dr Victor d’Assonville, a Research Fellow, will also present papers.

The participation of these academics in the conference is the result of an initiative that started eight years ago to cluster South African research on Classical and Reformation Theology at the University of the Free State. - Leonie Bolleurs

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