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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

A model of resilience – Dr Anja Botha probes into the ability to recover from trauma

2014-12-02

She may have been awarded her doctorate degree only in July 2014, but Psychology lecturer at the University of the Free State (UFS), Dr Anja Botha, is already making a name for herself with her latest research.

Her study aims to develop a model of resilience for South African adolescents exposed to trauma. “The broad field, within which I work, is that of Developmental Psychology, with a specific focus on child and adolescent development and therapy,” says Dr Botha.

Resilience studies are situated within Developmental Psychology since normal developmental tasks – such as achieving self-confidence and building supportive relationships – contribute greatly to children’s resilience. Resilience broadly refers to the individual’s ability to ‘bounce back’ after being exposed to adversity.

“The model of resilience which I compiled was a good fit for my participant group, indicating that the model explains the development of resilience in these adolescents well. The factors that I found to promote resilience in the South African context include various coping skills, intra- and interpersonal strengths, family involvement, and school engagement.

“Thus, aside from my passion for resilience studies, I am also very much interested in coping, strength-based interventions, parental guidance and school-based programmes.”

Dr Botha was awarded a Donald J Cohen fellowship in August 2014 during the 21st World Congress of the International Association for Child and Adolescent Psychiatrists and Allied Professions. The fellowship is in recognition of her work as an emerging international scholar in the field of child and adolescent mental health. This award was based on both her research as well as her involvement in the training of postgraduate students in child psychology.

She is currently supervising a number of master’s students’ research on various constructs related to resilience.

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