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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

Prof Van den Oever gives students a different perspective

2016-05-06

Description: Prof Van den Oever gives students a different perspective Tags: Prof Van den Oever gives students a different perspective

Prof Annie van den Oever from the Netherlands presented a series of guest lectures on media technologies to students of the Film and Visual Media Programme at the University of the Free State (UFS). Here from left is Chris Vorster, lecturer in Drama and Theatre Arts, Prof Van den Oever, and Dr Pieter Venter, Senior lecturer at Drama and Theatre Arts.
Photo: Jóhann Thormählen

She played a part in conceptualising the Film and Visual Media Programme at the University of the Free State (UFS), and sees film from a perspective different from most young South Africans.

According to Chris Vorster, lecturer of the UFS BA Honours degree in Film and Visual Media, this is one of the reasons why Prof Annie van den Oever’s visit is of such great value. The actor, who is a lecturer in Drama and Theatre Arts, believes it is important to expose his students to influences outside their normal experience.

Prof Van den Oever, an extraordinary professor at the UFS since 2011, presented a series of guest lectures on media technologies from 11-14 April 2016 at the Audio Visual Studio on the Bloemfontein Campus. She is a senior researcher for Film at the University of Groningen in the Netherlands, and an Associated Researcher for Film at Paris 1, Panthéon Sorbonne, in France.

Another milieu

“It is invaluable for students, in any field of study, to receive as many influences from the outside. Therefore, it is important to have someone here from another milieu and context. And academically, she is outstanding,” says Vorster.

Vorster’s students are also exposed to practical expertise from the industry in the country, not only academics.

Relationship with UFS

Prof Van den Oever says she usually visits the UFS twice a year. Her recent lecture series on media technologies was about the power of visual and film culture today, and how you can understand its powers. “Why strange effects work strongly and why the strange is inserted, because people respond strongly to them,” she says.

Prof van den Oever enjoys meeting new people, and often works with colleagues from the UFS on various projects. She also is full of praise for the management of the university. “It is great to work across cultures, and be part of a university in transition.”

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