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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

Enactus heeds call to be of service to its communities

2017-01-17

The newly-elected vice president of Enactus
University of the Free State, Solomuzi Khati
(third from left) with members of Enactus on
the Qwaqwa Campus.
Photo: Thabo Kessah

The future of South Africa is in good hands if Enactus activities are anything to go by. Enactus is an international non-profit organisation bringing together student, academic and business leaders committed to using entrepreneurial action to improve lives. And the Qwaqwa Campus chapter is doing exactly that – changing lives.

Community engagement
This team of enthusiastic and energetic students have touched the Qwaqwa community in more ways than one through their community engagement activities. One such activity was when they adopted the Team Spirit Centre as their partner for development and empowerment.

“Up to now, the chapter has lived up to its purpose of assisting and uplifting the Qwaqwa community. As part of our programme, we identified a problem that we are currently helping to solve,” said Solomuzi Khati, the newly-elected vice president of Enactus University of the Free State.

Skills development
“We have realised that many centres housing orphaned and vulnerable children, like the Team Spirit in Makoane in Qwaqwa, are not sustainable. Our project introduced a business concept to the centre where we helped to plant vegetables so the owner Mrs Manthabeleng could then use and sell at a later stage,” he said. “In the process, students and Mrs Manthabeleng would develop various entrepreneurial, finance and business skills for future use on top of the centre generating income to sustain itself,” he added.

Appointment of Advisory Board
Khati also revealed Enactus was in the process of inviting business and community leaders into their Business Advisory Board. “This is a group of business people who are recruited to serve as mentors for our team. Typically, a Business Advisory Board is composed of 10-50 business leaders in the community. Board members can keep students informed of current business concerns and trends, provide financial or in-kind assistance for projects, critique annual reports and presentations, and provide networking opportunities.”

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