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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

First Kovsie. First Free Stater. First Female. Prof Driekie Hay makes history.

2014-06-10

Prof Driekie Hay, Vice-Rector: Open and Lifelong Innovative Higher Education, was elected to the Board of the Afrikaanse Taal- en Kultuurvereniging (ATKV). It is the first time in the history of the ATKV that someone from our university – as well as from the Free State – has been elected to the Board.

To date, only a few women have been nominated.

“I see this election as recognition of the UFS’s vision to act as a national role player and make a difference through its Human Project and its pursuit of social justice and reconciliation,” says Prof Hay.

She was appointed in the cultural expert portfolio during the ATKV’s Annual General Meeting from 28 to 29 May 2014. In this position Prof Hay has to promote the Afrikaans language and culture on a national level – through an inclusive approach. Prof Hay’s goal is to build bridges between the different language and cultural groups. She would like to establish greater understanding between the various groups in our country. She feels it is important to give shape to “a new generation of South Africans that are no longer threatened by ‘otherness’, but will cherish the treasure of diversity.”

This appointment isn’t only a great honour, but also endorses Prof Hay’s expertise. “On a personal and professional level, this appointment means that they have confidence in my expertise, outlook on life and experience” she says.

Prof Hay will serve on the Board of the ATKV for a three-year term.

The ATKV is a cultural organisation with four main focus areas:

language,
the arts,
communities and
education.

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