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23 November 2021 | Story Leonie Bolleurs | Photo Supplied
With her talk on ‘Breaking the walls of darkness’, Emmie Chiyindiko came in second out of the 74 pitches presented at the recent Falling Walls Science Summit.

“I need you to take a moment and imagine trying to do everything that you do every day … without reliable energy. Or I’ll ask you this … How far would you walk to charge your phone if you didn’t have electricity? Would you walk for hours? Kilometres?”

“Well, that’s what millions of people in sub-Saharan Africa do daily to charge their phones. One billion people globally don’t have access to electricity in their homes and in sub-Saharan Africa, more than half of the population remains in the dark.”

This was the introduction to Emmie Chiyindiko’s talk at the recent Falling Walls Science Summit earlier this month. Emmie, who is a PhD student in Chemistry at the University of the Free State (UFS), came in second out of the 74 pitches presented with her talk on ‘Breaking the walls of darkness’ in the ‘Breakthrough of the year in the emerging talents category’.

Falling Walls Lab is a world-class pitching competition, networking forum, and steppingstone that brings together a diverse and interdisciplinary pool of students, researchers, and early-career professionals by providing a stage for breakthrough ideas, both globally and locally. 

Emmie, who sees getting out of bed every morning as just another opportunity to “be the exceptional young black female scientist that I am”, won the local Falling Walls Lab in Cape Town in October, which resulted in her going through to the finals in Berlin. She plans to host the Falling Walls Lab in Zimbabwe, her homeland, next year. 

This innovator and science communicator, whose work has been covered in Forbes Science, News24, and the Sunday Times, among others, refers to her obtaining second place on the international stage for her research as “a tremendous achievement and a new height in my science communication career. That level of recognition from the world leaders in science, technology, and science engagement cannot be overstated”.

Ending energy poverty

She believes Sustainable Development Goal 7 – leaving no one behind and eradicating global poverty – must be preceded by intentional efforts to end energy poverty. “My research on dye-sensitised solar cells (DSSC) with special metal complexes is among the most interesting alternatives to conventional solar cells.”

Emmie explains: “The design of the cells is inspired by photosynthesis – that good old process plants use to transform sunlight into energy via chlorophyll. Instead of a leaf, the cells start with a porous, transparent film of eco-friendly titanium dioxide nanoparticles. The film is also coated with a range of different dyes that absorb scattered sunlight and fluorescent light. When sunlight hits, it excites the electrons in the dye, creating an endless supply of energy. 

The bright side of this research is that there are several benefits to this invention. It produces energy that is cheap, reliable, and relatively simple and inexpensive to produce. Emmie adds: “These next-generation cells also work impeccably in low-light and non-direct sunlight conditions, providing all-year-round energy with no disruptions. DSSC is also three times cheaper than conventional cells and produces 40% more energy.”

Improving livelihoods 

She continues: “It does not degrade in sunlight over time as do other thin-film cells, making the cells last longer, and requiring less frequent replacement. DSSCs are also mechanically strong, because they are made of lightweight materials and do not require special protection from rain or abrasive objects.”

Emmie has proven that solutions to our current energy situation are available. “We are on the cusp of an energy revolution, and we must act now. Solutions are available, and if we do not seize them during a time of crisis, when will we?”

She believes that creating technology like this can end the energy crisis and improve livelihoods. “Billions of people simply lack enough energy to build a better life. Affordable, abundant, and reliable energy can go a long way to store food, power life-saving medical equipment, and run trains and factories. It can help communities to grow and prosper and to access opportunity and dignity. Societies where people have access to energy have lower childhood mortality, a higher life expectancy, they eat better and drink cleaner water, and have a better literacy rate.”

News Archive

Housing strategy must accommodate special needs
2005-10-17

Dr Mark Napier of the Council for Scientific and Industrial Research (CSIR) 

South Africa’s housing strategy must give attention to people with special needs, including people with disabilities as well as people living with HIV / AIDS and those in poverty.

This was the view expressed by Dr Mark Napier of the Council for Scientific and Industrial Research (CSIR) during his recent presentation to the Housing Research Day organised by the Centre for Development Support (CDS) at the University of the Free State (UFS).

Dr Napier previously worked in the national Department of Housing and was involved in shaping the recently launched “Breaking New Ground” housing strategy of Minister Lindiwe Sisulu. 

He said the changing social and demographic trends in South African society, especially after 11 years of democracy, required more flexibility in housing delivery to address the housing needs of different groups of people.  “For example, there are people who wish to or may be required to be spatially mobile because of their work or other reasons. There are also those communities who are vulnerable to disasters,” he said.

According to Dr Napier, housing delivery faced a number of challenges which needed to be addressed, including:

  • the withdrawal of larger construction firms
  • perceptions of low profit margins in the private sector
  • the slow process of developing an emerging contractor sector
  • access to bridging and other finance
  • the ability to retain capacity and expertise mainly at municipal level
  • the acquisition of well located (especially inner city) land

Dr Napier said the new housing strategy – which is called “Breaking New Ground” – tries to go beyond the provision of basic shelter to the establishment of sustainable settlements. It is also tries to be more responsive to housing demand rather than being supply led.

 The new strategy also allows for greater devolution of power to municipalities in the provision of housing, through accreditation to manage subsidies, Dr Napier said. 

He said a survey of people who had benefited from government’s housing programme had shown mixed results, with beneficiaries reporting a sense of security, independence and pride.  Although the location of the houses was poor and there were increased costs, most beneficiaries said they were better off than before, according to the survey.  Beneficiaries also highlighted the problem that they had very little personal choice between houses, sites or settlements.

There was also the perceived failure of developers and municipalities to repair defective houses or adequately maintain settlements, the survey found.
Many beneficiaries also reported that they felt unsafe in their settlements as well as in their own houses.

Prof Lucius Botes, the director of the Centre for Development Support, said the research day highlighted the Centre’s ability to interact with real problems faced by communities, by government, the private sector and civil society.  “This is how we can ensure that the UFS is engaged through our research with our people’s problems and challenges and enables the UFS as a place of scholarship to assist in finding solutions,” Prof Botes said.

Media release
Issued by:Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
17 October 2005   
 

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