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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

Ivory Coast too dependent on UN to combat violence against women

2015-10-08

During the seminar presented by the Centre for
African Studies (CAS) at the University of the Free State
were, from the left: Thesipo Machabaphala, student in
Gender Studies; Prof Heidi Hudson, Head of CAS;
Dr Peace Medie from the University of Ghana,
guest speaker; and Sesi Mahlobogoane, student in
Gender Studies.

The Ivory Coast is still too dependent on the work of the United Nations (UN) to combat violence against women in the country. There is much talk about ways to address the problem, but the government is still not acting quickly and effectively enough to make a difference in the long term.

These were some of the findings by Dr Peace Medie from the University of Ghana, guest speaker during a seminar series held by the Centre for Africa Studies (CAS) on the Bloemfontein Campus of the University of the Free State on 1 October 2015.

Dr Medie presented a seminar for students in the Gender Studies programme entitled Women, Security, and Justice: a Study of the Ivorian State’s Response to Violence against Women. Prof Heidi Hudson, Head of CAS in the Faculty of the Humanities at the UFS, facilitated the seminar.

For the sake of internationalisation, the CAS often presents guest speakers from outside South Africa to address its students. In addition , Dr Medie is from Africa.

According to Dr Medie, who conducted some 150 interviews during her research over two years, there was a shortage of resources in the Ivory Coast. This is also the case in several other African countries previously involved in war.

She believes the Ivory Coast should do more to combat violence against women successfully.

She said the UN had a great influence on the way people, especially the police, were thinking about the problem - which included sexual violence against women.

“The UN will not be there forever,” Dr Medie said.

“If response depended only on the influence of an international organisation, what would happen when the UN leaves?”

According to Dr Medie, a shortage of active women’s organisations also had a role to play. She was of the opinion that these organisations should put more pressure on the government to ensure better treatment for women.

“Local organisations are needed because it is not sustainable to depend only on the work of the UN.”

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