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Time for smart energy

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South Africa is experiencing an energy crisis that requires the public and private sectors, along with households to work together. Fundamental to this is embracing innovative technology that provides more efficient ways of managing the country’s energy.

Riaan Graham, sales director for Ruckus Networks, sub-Saharan Africa, said: “With the number of connected devices expected to top more than 75 billion worldwide by 2025, the Internet of Things (IoT) can be considered an important tool in reaching this goal. Already, connected devices can be used to deliver smart energy that sees a more optimal use of resources.”

This approach relies on a smart grid of connected sensors pointing to areas where energy is wasted. In turn, the supply to these points can be allocated to higher priority areas resulting in a better use of resources.

Aiding this drive towards connected devices is government pushing towards the establishment of smart cities. These cities require a technological infrastructure built around various sensors connected to the internet to not only generate data, but control things as diverse as traffic lights, street lamps, and other electrical devices.

Graham said: “These smart cities enable lighting to be automatically switched off when not needed. Sensors on the connected devices will detect when people are on the street and turn it off or on accordingly. What might seem like a novelty, can make a massive difference in reducing energy waste.”

According to Kate Stubbs, director of business development and marketing at Interwaste, IoT is just part of how technology can be used to create a more efficient environment.

“South Africa produces an average 108 million tonnes of waste annually,” said Stubbs. “Of this, only 10 percent is recycled. There is significant potential to use this waste and convert it to energy. This is more than just the traditional way of viewing recycling. Instead, it is using technology to extract value out of waste through initiatives like refuse and waste-derived fuel.”

The first South African Refuse Derived Fuel (RDF) plant was launched in 2016 and not only aims to reduce landfill, but also the country’s carbon footprint. As the name suggests, the plant converts general, industrial, and municipal waste into an alternative fuel that is used in the cement industry.

Stubbs said: “Spin-off benefits of this plant includes the creation of additional employment opportunities and a reduction of South Africa’s greenhouse gas emissions. Waste management entails so much more than what many people think. But the key remains a combination of technology innovation and a willingness to use the resources generated by this.”

Graham agrees about the need to readily accept the innovation technology brings as the country is teetering on a significant energy disaster.

He said: “New technologies are critical in helping the countries and their cities of the future promote sustainable energy use. For example, Nairobi has introduced smart street lamps that use LED lighting saving money and resources on energy costs. These lamp poles also have Wi-Fi embedded in them that sees air quality probe sensors submitted vital data for city planners on where there are pollution hotspots.”

Stubbs feels these are good examples of how energy management approaches in the connected world need to be non-linear.

“The traditional ways of adopting technology, recycling, and managing energy must be seen as relics of the past,” she said. “Instead, we must all work together and readily embrace modern solutions or risk our country entering a new dark ages.”

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SA’s Internet goes down again

South Africa is about to experience a small repeat of the lower speeds and loss of Internet connectivity suffered in January, thanks to a new undersea cable break, writes BRYAN TURNER

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Internet service provider Afrihost has notified customers that there are major outages across all South African Internet Service Providers (ISPs), as a result of a break in the WACS undersea cable between Portugal and England 

The cause of the cable break along the cable is unclear. it marks the second major breakage event along the West African Internet sea cables this year, and comes at the worst possible time: as South Africans grow heavily dependent on their Internet connections during the COVID-19 lockdown. 

As a result of the break, the use of international websites and services, which include VPNs (virtual private networks), may result in latency – decreased speeds and response times.  

WACS runs from Yzerfontein in the Western Cape, up the West Coast of Africa, and terminates in the United Kingdom. It makes a stop in Portugal before it reaches the UK, and the breakage is reportedly somewhere between these two countries. 

The cable is owned in portions by several companies, and the portion where the breakage has occurred belongs to Tata Communications. 

The alternate routes are:  

  • SAT3, which runs from Melkbosstrand also in the Western Cape, up the West Coast and terminates in Portugal and Spain. This cable runs nearly parallel to WACS and has less Internet capacity than WACS. 
  • ACE (Africa Coast to Europe), which also runs up the West Coast.  
  • The SEACOM cable runs from South Africa, up the East Coast of Africa, terminating in both London and Dubai.  
  • The EASSy cable also runs from South Africa, up the East Coast, terminating in Sudan, from where it connects to other cables. 

The routes most ISPs in South Africa use are WACS and SAT3, due to cost reasons. 

The impact will not be as severe as in January, though. All international traffic is being redirected via alternative cable routes. This may be a viable method for connecting users to the Internet but might not be suitable for latency-sensitive applications like International video conferencing. 

Read more about the first Internet connectivity breakage which happened on the same cable, earlier this year. 

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SA cellphones to be tracked to fight coronavirus

Several countries are tracking cellphones to understand who may have been exposed to coronavirus-infected people. South Africa is about to follow suit, writes BRYAN TURNER

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From Israel to South Korea, governments and cell networks have been implementing measures to trace the cellphones of coronavirus-infected citizens, and who they’ve been around. The mechanisms countries have used have varied.  

In Iran, citizens were encouraged to download an app that claimed to diagnose COVID-19 with a series of yes or no questions. The app also tracked real-time location with a very high level of accuracy, provided by the GPS sensor. 

In Germany, all cellphones on Deutsche Telekom are being tracked through cell tower connections, providing a much coarser location, but a less invasive method of tracking. The data is being handled by the Robert Koch Institute, the German version of the US Centers for Disease Control and Prevention. 

In Taiwan, those quarantined at home are tracked via an “electronic fence”, which determines if users leave their homes.  

In South Africa, preparations have started to track cellphones based on cell tower connections. The choice of this method is understandable, as many South Africans may either feel an app is too intrusive to have installed, or may not have the data to install the app. This method also allows more cellphones, including basic feature phones, to be tracked. 

This means that users can be tracked on a fairly anonymised basis, because these locations can be accurate to about 2 square kilometers. Clearly, this method of tracking is not meant to monitor individual movements, but rather gain a sense of who’s been around which general area.  

This data could be used to find lockdown violators, if one considers that a phone connecting in Hillbrow for the first 11 days of lockdown, and then connecting in Morningside for the next 5, likely indicates a person has moved for an extended period of time. 

The distance between Hillbrow and Morningside is 17km. One would pass through several zones covered by different towers.

Communications minister Stella Ndabeni-Abrahams said that South African network providers have agreed to provide government with location data to help fight COVID-19. 

Details on how the data will be used, and what it will used to determine, are still unclear. 

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