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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

Seminar puts language issues under spotlight

2012-06-29

The South African Languages Bill does not meet the Constitution’s requirements and is not doing much to curb English monolingualism.

This viewpoint of a number of critics was discussed at a language seminar at the University of the Free State (UFS) this week.

The Faculty of the Humanities at the UFS presented the seminar on the Bloemfontein Campus, where interested parties could discuss issues and developments relating to the South African Languages Bill.

The seminar formed part of the combined annual conference of the South African Applied Linguistics Association, the Linguistic Society of Southern Africa and the South African Association for Language Teachers.

At the conference, the rich diversity of language and also the complexity of language in South Africa was recognised.

The latest South African Languages Bill has attracted much interest and varied viewpoints this past year.

One of the most significant - and also the most controversial - suggestion of the present bill is to extend the present bi-language obligation to a four-language obligation, which implies that at least one African language is added to the present formula.

Furthermore, there are other important stipulations regarding the establishment of language units that will have implications for the public service, and specifically, for language practitioners.

Prof. Koos Malan, a Constitutional Law expert from the University of Pretoria, speaking during a discussion session, said: “Language determination in constitutions and language legislation are indications of the official ideology towards dealing with language and cultural diversity in the specific state. The ideology can range from the support of multilingualism – at the one extreme – to the other extreme, where only one language will get preference as the official language.”

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