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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

Students translate documents for the aged

2007-11-08

As part of practical module in translation, third-year students in Translation Studies at the University of the Free State (UFS) translated a document for a group of aged people. The document is a guide for luncheon clubs of Age-in-Action, a non-governmental organisation working amongst the aged. The document contains information on how the aged can organise the group and the services they can render in the community. The document was translated into Afrikaans and Sesotho with the help of a group in Heidedal and Mangaung, respectively. As part of their course, the students had to meet with the management of Age-in-Action to find out more about the aim of the document. After that, they visited the groups in the community twice to gain information that would ensure that the documents fulfil the needs of the groups. The students attended to matters such as the type of language used by the groups, what the groups do with the document and the layout requirements of the groups, e.g. a larger font. The module in translation studies is presented as a community service-learning module, which means that students learn while rendering service in a community. They have the advantage of learning in a real-life situation and the community has the advantage of receiving a service. The aim is to develop knowledge which is to the advantage of the community. On the photo the translated document is handed to the leaders of the luncheon clubs. From the left, are: Ms Melita Pietersen (luncheon club leader), me. Karma Harvey (third-year student in Language Practice at the UFS), Ms Susan van Eck (luncheon club leader), and Ms Catherine van Rooyen (luncheon club leader).
Photo: Supplied

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