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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

Cultural immersion programme for Rutgers University students

2014-07-29

After a community engagement induction, Rutgers University students head out to visit communities.
Photo: Supplied

The International Office and the Department for Community Engagement will host a week-long cultural immersion programme for eight students of Rutgers University from 27 July – 2 August 2014. The Rutgers Graduate School of Education's South Africa Initiative (SAI) bridges cultures, connects educators and provides hope for learners and students from South Africa and the United States.

This interdisciplinary programme provides teachers and students on both sides of the world with the opportunity to exchange information through service learning, training and distance technology. This leads to educational gains for students and educators in both countries.

The Rutgers group of master’s, PhD and undergraduate students will visit two NGOs working with children at risk in the community of Heidedal, namely Tshepo Foundation and Lebone Village. The week-long programme will include lectures on the social, cultural and historical background of pre- and post-apartheid South Africa. Speakers from various departments and faculties of the UFS will feature during this event. These include the Institute for Reconciliation and Social Justice, the Postgraduate School, the Department of History, African Languages, as well as Education.

Prof André Keet, Director of the Institute for Reconciliation and Social Justice, will share the transformation story of our university with the group. Dr Henriette van den Berg will speak on mentoring postgraduate students to become successful researchers of the future.

This year marks the 12th anniversary of the SAI Cultural Immersion Program and a fruitful partnership with the UFS and other South African universities. Over the years SAI has provided tonnes of school books and supplies which have been shared with more than 2 000 learners in South Africa. Special projects such as the Literacy Through Photography and Brielle Digital Stories Project have been conducted by SAI alumni in schools. These have resulted in thousands of dollars of support given directly to South African schools.

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