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26 May 2020 | Story Valentino Ndaba | Photo iStock
UFS campuses are transforming into research instruments while simultaneously improving campus operations through the Smart Grid initiative.

Imagine living in a smart home. Imagine monitoring your household’s electricity usage via an integrated system that would notify you of your daily electricity use, peak usage times, and tariffs and consumption at the location of the house. As a user, you would be able to take advantage of such information in order to manage your resources in a more efficient manner. This is just one example of what a Smart Grid can do.

The University of the Free State’s (UFS) Faculty of Natural and Agricultural Sciences has teamed up with the Department of University Estates to drive our very own Smart Grid initiative that is transforming the university’s power network into one with full control and monitoring. “A Smart Grid allows for resource optimisation and asset protection, especially in times like these,” said Nicolaas Esterhuysen, Director of Engineering Services. 

Why is it important for our university to have a Smart Grid?
Dr Jacques Maritz, Lecturer of Engineering Sciences at the Faculty, considers a Smart Grid the natural evolution of power grids in the era of Big Data, IoT and Machine Learning. Resources such as electricity, water and steam can now be monitored and controlled to promote savings and the protection of valuable infrastructure. “Aiming towards Smart Grid status, the UFS will improve resource service-delivery to its staff and students, while sculpting a digital twin of its campus’s power grid, consumer network and resource generators,” he added.
  
How will a Smart Grid improve student success?
The integrity, sustainability and continuous supply of energy directly affects the academic project on all three campuses. The implementation of a Smart Grid could allow improved service delivery and reaction time when any utility is interrupted, as well as maintaining the valuable infrastructure that serves the UFS community.

In what way does a Smart Grid improve the lives of staff members?
According to Dr Maritz  and Esterhuysen: “A Smart Grid will support staff to perform their teaching and research duties in a seamless manner, continuously optimising the energy that they consume to enable full comfort and reliability in energy supply, whilst simultaneously generating savings in energy and preventing wastage.”

The UFS already boasts most of the fundamental building blocks associated with the Smart Grid initiative, especially focusing on monitoring, grid protection, centralised and decentralised solar PV generation and software platforms to serve all these domains. However, to integrate all of these domains into one digital real-time paradigm will be a first for the UFS.

Some examples of the UFS smart grid applications currently in practice
Real-time remote monitoring and control that focuses on the following:
- We are able to detect power outages and don’t have to rely on customer complaints. This enables faster response time and fault identification, thus less downtime and an increase in reliability;
- Solar plant generation; 
- Monitoring our standby generation fleet; 
Identifying usage patterns and saving thereof;
Benchmarking buildings in terms of application usage, area or occupancy to determine energy efficiency and identify savings; and condition-based preventive maintenance that will increase reliability while saving costs.

News Archive

UFS takes steps to address power shedding
2008-01-31

The problem of power shedding was urgently discussed by the Executive Committee of the Executive Management (Exco) during its meeting yesterday.

A report was presented by Ms Edma Pelzer, Director: Physical Resources and Special Projects, and a consulting electrical engineer about possible short, medium and long term solutions for the UFS.

This includes (a) the possible installation of equipment (eg. power generators) and (b) operating procedures to ensure the UFS’s functionality despite power shedding.

We are also in contact with Centlec to bring about the best possible arrangements for the UFS regarding the power shedding. It is possible that refined power shedding schedules will be implemented within a few weeks or a month to ensure that there is minimal disruptions at the UFS (especially during evening lectures).

In the long term it is unaffordable to generate power for the whole campus to meet everyone’s electricity needs. Only critical points will be supplied with emergency power generators.

Emergency power generation for certain critical points have already been provided for (eg. the Callie Human Centre, the evacuation of large halls, computer services, critical long term research projects, etc.). We have been doing surveys since 2006 to determine the UFS’s preparedness for “normal” power failures. The extent of the current situation has, however, taken the whole country by surprise.

Certain urgent steps were decided on yesterday. A decision was made to immediately design emergency power systems and supply it to the new examination centre and large lecture halls such as the Stabilis, Flippie Groenewoud, Agriculture building, and possibly the West Block. The delivery and installation of these systems will, however, take from three to six months.

The UFS will have to manage despite the power shedding, even after the emergency power systems have been installed and we will not be able to function as normal. Every division must devise operating procedures to deal with the power shedding without jeopardising the quality of core functions.

Bloemfontein is luckier than many other cities because Centlec is able (so far) to keep to the published schedule to a large extent.

Plans are also being made to keep staff and students continuously informed via the UFS web site about expected power shedding schedules and risks of power shedding in the course of a day.

Exco requests every faculty and support service to think about suitable operational solutions for managing their work and meetings during a power shedding.

Every line head has instructions to urgently determine the situation and needs in his or her division and indicate what practical arrangements can and must be made to schedule work around the power shedding. Every line head must provide Exco with a status report within a week.

In this way critical areas in terms of core functions and high quality service delivery will be determined and receive attention. Security systems and the safety of staff and students will also receive specific attention - this includes the residences.

In the mean time the Department of Physical Resources will carry on with a wide-ranging investigation into the extent of needs and plans and will compile a budget for the solution thereof.

Prof. Teuns Verschoor, Vice-Rector: Academic Operations, and the deans had a meeting yesterday to discuss problems and possible solutions around the power shedding in eg. computer rooms, during evening lectures, and practical classes.

Options may include eg. alternative time slots (eg. weekends) or alternative halls (eg. at the Vista Campus) for evening lectures which are affected by power shedding, or adjusted teaching methods.

Staff is requested not to install their own power generators under any circumstances. It can be very dangerous when such apparatus are linked to a building’s electrical system. The safety of staff and students and the risks of fire or injuries must also be the highest priority under all circumstances.

The Department of Physical Resources is also in the process of investigating options such as smaller power generators or ‘UPS’ apparatus as part of a broader evaluation of needs and potential solutions.

Exco wants to ensure all staff and students that this matter is receiving urgent attention and will keep on receiving it.

If there are any practical solutions about dealing with the power shedding (such as alternative ways of working) you are invited to send an e-mail to: lightsout@ufs.ac.za  

 

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