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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

Inaugural lecture celebrates Qwaqwa founder, Morena Mopeli Mokhachane

2014-09-12

Photo: RooistoelTV

Every historical era presents its own challenges and creates its own leaders who take up the call to address those challenges.

This was expressed by Dr Nyefolo Malete who presented the Inaugural Memorial Lecture on 6 September 2014 at the Qwaqwa Campus. The lecture honoured the live of the Qwaqwa founder, Morena Paulus Mopeli Mokhachane.

Dr Malete said that Morena Mopeli played his part in history as a skilled negotiator, formidable team player and a liberator who held good human relations in high regard.

“Morena Mopeli lived at the time when Southern Africa was experiencing a moment of frustration and despair. It was faced with conflicts, battles, starvation and turmoil in preparation for a transformation that was to serve as the mirror of the political and social stage which existed until 1994,” Dr Malete said.

“He was a hopeful leader and thinker who played a critical role in assisting his brother Moshoeshoe to build and protect Lesotho where it was humanly possible. He participated in most of the negotiations with all the groups to create peace and protect the borders of Lesotho. He was a good, intelligent and formidable diplomat who was aware of his role as a leader. He was aware that he could influence the future through dialogue.”

Dr Malete said that Africa needs leaders like Mopeli. Leaders who can expand the capacity to remain open to possibilities and “envision a positive future in the face of uncertainty and to creatively construct pathways that can be embraced by all people who collectively seek to turn possibilities into reality.”

In attendance at the lecture were dignitaries from the Lesotho Royal House, the Free State Provincial Government and the Free State House of Traditional Leaders.

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