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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

Predation Management Centre helps stock farmers to address predator problem

2017-03-29

Predators, including caracal and foxes, are costing the
livestock industry about R2 billion annually. The
Predation Management Information Centre was
established to collect, analyse, and make information
available on predation and predation management to
stock and game farmers.
Photo: Pixabay

Predators are costing the livestock industry about R2 billion annually. To address the problem, the Department of Animal, Wildlife and Grassland Sciences at the University of the Free State (UFS) teamed up with the Predation Management Forum (PMF).

Predation Management Information Centre established
The UFS has signed service agreements for the establishment of a Predation Management Information Centre with the four industries (wool, mohair, red meat, and game industries) forming part of the PMF. The centre will collect and analyse information on predation and predation management. This information will then be made available in a management information system and information contained in the system will be made available to all users.

Centre makes essential information available
At the information centre, a team of dedicated staff members handles calls and enquiries. Experts in the team are also available to provide advice to farmers. Furthermore, the centre is responsible for the management of information and resources. Relevant policy documents and scientific articles will be stored in an archive at the centre which will also collect research, statistics, biometric information, and information on new research topics.

The information that is collected will be used to assist farmers with predation management. Information on methods which are effective in a specific situation will be made available to farmers in order to help reduce predation on their farms. “By focusing on non-lethal methods in predation management, best practices can be compiled in order to restrict losses attributed to predation to the minimum,” says Quinette Kruger from the information centre.

Contact details for authorities and specialists managing damage-causing animals will also be provided by the centre.

The information centre invites stock farmers, game farmers, the general public, retail, authorities, and other stakeholders to contact the centre at +27 51 401 2210 or PredationMC@ufs.ac.za.