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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

House Madelief turns over a new leaf

2013-02-15

The new year has come with a lot of changes for House Madelief. The residence, home to 179 female students, had a make-over which changed its inside appearance. The changes include new relaxation and meeting spaces, changes in decor, as well as renovations to the residence’ and visitors’ bathrooms.

Notable changes include four different spaces which each present a unique, but blending identity. When not in class, residents can make use of the little coffee corner, a conference room for quick meetings, a lounge and relaxation area. New paintings were also hung in the men’s gazellie, consisting of artworks painted by talented Madelief resident, Kondi Shikwambani.

With new decor came a new theme. “A place we call home, our home, Madelief," says Diatile Mohlakane, Prime of the residence. "Madelief is a vibrant place of colour, which has postitive energy flowing throughout the house."

Rudi Buys, Dean of Student Affairs, congratulated Madelief on its new appearances. "We are immensely proud of Madelief and of both the Residence Head and the Residence Committee for achieving change, not only in terms of what the residence’s facilities offer Madeliefies, but also in the apparent sense of community among students which have become a proud reality. Madeliefies are now known as people who live with values which inspire all around them."

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