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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

BAccHons students achieve A+ rating in ITC exams

2017-09-07

The lecturers of the 2016 BAccHons class: Liesel Botha,
Prof Alta Koekemoer, Prof Cobus Rossouw, Mr Kobus Swanepoel,
Dr Cornelie Crous, Prof Hentie van Wyk, and Mr Shaun Watson.
Photo: Supplied

The 2016 BAccHons students in the School of Accountancy at the University of the Free State achieved a 96% pass rate in the 2017 Initial Test of Competence (ITC) examinations of the South African Institute of Chartered Accountants (SAICA). The ITC examinations took place in January and June, and of the 49 students that partook in the examinations, 47 passed.

Prof Hentie van Wyk, Programme Director of the School of Accountancy, said with these results, the School of Accountancy ranks among the top accountancy institutions in South Africa. “The UFS is one of 14 accredited universities offering the SAICA-accredited programme,” he said.

New teaching model a success
A new teaching and learning module, which was introduced by the School of Accountancy in 2013, seemed to have fuelled the success of the students, as it is now more learner-centred and introduced more structured support to students.

The same strategies will be followed for the current 2017 intake. “We achieved an average pass rate of 84.8% over the past five years and if we can build on that, it will be an achievement of note,” says Prof Van Wyk. However, students should understand that much of these achievements are in their own hands. “After leaving the UFS, they must continue with the preparations for the ITC examinations in order to guarantee their success. The ball is actually in the students’ court,” he said.

Of the African students, 91% were successful in the national examinations, while 100% of the Thuthuka bursary students passed. The average pass rate for the past five years is as follows:

2016 96%
2015 72%
2014 80%
2013 84%
2012 92%.

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