Browsing by Author "Wlokas, Holle"
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- ItemOpen AccessEnergy, water and climate change in Southern Africa: what are the issues that need further investment and research?(Energy Research Centre, University of Cape Town., 2012) Prasad, Gisela; Boulle, Michael; Boyd, Anya; Rahlao, Sebataolo; Wlokas, Holle; Yaholnitsky, IvanRegional climate change projections in Southern Africa, based on GCMs comparing 2080-2099 to 1980-1999, indicate that global warming will most likely lead to greater than the global annual mean temperatures for all seasons, 3.1°C for summer warming and 3.4°C for winter warming (Christensen et al, 2007). Warming in Southern Africa will lead to increasing rainfall intensities, decreasing frequencies of low intensity (soft soaking) rainfall and longer dry period between rainfall events. This will result in more severe draughts, floods and heatwaves, which will lead to greater food insecurity. In historic times, draughts and floods had already major impacts on Southern African populations. Around 1200 to 1500, droughts led people to abandon settlements in the Kalahari Desert. The Lifaqane wars, starting in about 1815, were characterized by a 25-year period of famine and violent conflict between peoples in Southern Africa. During the 1991-1992 draught, 20 million people in the region (15% of SADC population) needed food relief (Dejene et al 2011). Many parts of Southern Africa face two critical resource constraints on development, namely energy and water. Energy and water are closely linked at different levels and scales. Water drives the turbines of hydroelectric power plants. Processing of coal and cooling in thermal and nuclear power plants requires water and energy is required to lift, treat and distribute water. Even at the household level, we observe water-energy linkages. When using water-saving showerheads, for example, we not only save water, but also electricity for heating the water. This complex interconnection is called the water-energy nexus. At the same time, coal-based power plants emit large amounts of greenhouse gases (GHGs) into the atmosphere, contributing to climate change and climate variability which then leads to floods and droughts. In times of drought little water flows into hydroelectric dams, affecting electricity generation. For rural communities the greater frequencies and severity of droughts and floods caused by climate change leads not only to crop failure and subsequent hunger but also interferes with water supply technologies when, for example, the water levels in boreholes rise or fall beyond the specification of the pump. Thus climate change critically impacts the water-energy nexus. The International Development Research Centre (IDRC) in Canada commissioned the Energy Research Centre (ERC) at the University of Cape Town to assess the water-energy nexus in the context of climate change. ‘The goal of the exploratory project is to analyse the way energy and water services can be combined and improved to enhance resilience and adaptive capacity of communities to climate variability and change’. After an introduction to the water-energy nexus in Southern Africa (Chapter 1) and a brief review of the four countries studied as well as climate change scenarios for the Southern African region (Chapter 2), the study reports on the following four major research topics identified by the Southern African team: 1. The state of integrated planning of water and energy resources in the context of climate change (Chapter 3). 2. Opportunities and barriers for renewable energy technologies for rural water services in Namibia, Botswana and Mozambique (Chapters 4 and 5). 3. The water-energy nexus in policies of South Africa (Chapter 6). 4. An investigation of water supply adaptation technologies and strategies in a case study from Lesotho (Chapter 7). The assessment is based on secondary data through a cross-disciplinary desktop study, discussions with experts and two workshops. The countries covered in this report are Botswana, Lesotho, Mozambique, Namibia, and South Africa.
- ItemOpen AccessLow carbon development and poverty: exploring poverty alleviating mitigation action in developing countries(University of Cape Town, 2012) Wlokas, Holle; Rennkamp, Britta; Torres, Marta; Winkler, Harald; Boyd, Anya; Tyler, Emily; Fedorsky, CatherineClimate change and poverty mostly fall into the adaptation category in the current research literature and relevant policy-making. The strong connection between poverty and adaptation rests on the assumption that poor countries produce only low carbon emissions. They will also be most affected by the impacts of climate change. Therefore, efforts on poverty and climate change concentrate mostly on adapting to the consequences of climate change. If we acknowledge current findings of poverty research, we find that this separation between mitigation and adaptation does not hold anymore. Recent research suggests that poverty demographics have changed between 1990 and 2010. The majority of the poor nowadays live in middle-income countries, and not only in low-income countries. Emissions in middle-income countries increase, while their governments try to reduce emissions in the long term without jeopardising socio-economic development. Climate change presents a threefold policy challenge for middle-income countries. They need to: i) design mitigation actions in such a way that they contribute to alleviate poverty; ii) reduce emissions, helping to slow global warming in a way that does not compromise the competitiveness of their economies, because without collective action by all, the costs of inaction affect mostly the poor; and iii) prepare to adapt to the unavoidable consequences of climate change. The paper unpacks the linkages between low-carbon development, mitigation and poverty in middle-income countries (where the majority of the poor live). Most middle-income countries pursue carbon-intensive development paths and will need to mitigate emissions towards low-carbon development paths. How can mitigation actions contribute to poverty alleviation? An explorative analysis of mitigation actions in five middle-income countries shows that mitigation has moved on the political agendas over the past five years. Yet, these efforts are not necessarily linked with poverty alleviation instruments. Most mitigation action can have positive and negative poverty effects. Their impacts depend on an adequate pro-poor policy mix.
- ItemOpen AccessOn REIPPPP: Exploring the potential of intermediaries to support the implementation of the programme's socio-economic development obligations in low-income communities(2021) Mgxashe, Phumeza; Wlokas, Holle; Zolfaghari, BadriThis research explores the potential role of intermediaries in the implementation of socioeconomic development (SED) benefits through the Renewable Energy Independent Power Producer Programme (REIPPPP) in low-income communities. SED benefits are a procurement requirement that forms part of REIPPPP's Economic Development scorecard and are required to be implemented in identified beneficiary communities, with the aim of improving livelihoods in such communities. Literature points to the fact that, community development is not a function of the private sector and that intermediaries can have success in partnering with communities in their quest for development. This research is approached through a qualitative inductive study of a case study. The case study is Project90by2030, a not-for-profit organisation (NPO) and public benefit organisation (PBO) that is focused on the mobilisation of and advocacy for clean energy in energy poor lowincome communities. The research pays attention to the organisation's community development approach and what possible learning benefits there could be for the REIPPPP. Interviews were held with community participants and facilitators of the Community Partnership Programme of the organisation. The research finds that low-income communities experience exclusion and inequality and identifies the agents of the said exclusion and inequality. This thesis argues that intermediaries can play an important role to bridge inequality of agency and other power dynamics that work to the detriment of the empowerment of low-income communities. It concludes that socio-economic community development is a contribution to society that business should pursue, with the support of intermediaries and with local government as a key strategic partner.
- ItemOpen AccessThe potential of renewable energy for rural groundwater supply in the Elundini Municipality(2014) Kernick, Gordon; Hibberd, Andrew Charles Michael; Wlokas, HolleThe Elundini municipality, situated in the interior Eastern Cape of South Africa, as with many other municipalities with a large portion of rural inhabitants, is beset with the challenge of needing to provide clean drinking water to these far lying people in an efficient and cost effective manner. Due to the large distances between villages as well as from any town or major infrastructure, supplying water via traditional pipe networks is not feasible. Historically, groundwater has been the water source of choice and abstracted via the use of diesel powered borehole pumps. These pumps are however noisy, require constant maintenance and are associated with high running costs associated with the ever increasing price of fuel. Not only is the fuel expensive in itself, but it is also required to be transported long distance to the boreholes on a regular basis. This study then investigated how solar and wind powered borehole pumps compared with diesel powered options. This was done by assessing the natural resource potential of the region (wind and solar power) as well as the groundwater abstraction potential of a sample of villages. Notional solar, wind and diesel powered systems were then designed for each of the villages with each of their unique water supply requirements and then compared against one another with a life cycle cost analysis for each system being performed. The study found that, not unlike other similar studies in other regions of the world, that over their lifetime, wind and solar powered borehole pumps were cheaper than their diesel counterparts. This was especially true for solar powered options as the solar resource for the region is superior to that of wind. Although traditionally shunned due to high capital costs, solar powered pumps have been commercialized in recent years and are now only marginally more expensive than diesel options. Wind pump capital costs are still prohibitively high, although running and maintenance costs are low. For the Elundini municipality however, and its relatively poor wind resources, this would not be a recommended technology.
- ItemOpen AccessThe role of bicycles and bicycle empowerment centres in improving the mobility and livelihoods of the poor, and assisting with low-carbon development in Cape Town Michael Joseph Boulle(2013) Boulle, Michael; Prasad, Gisela; Wlokas, HolleIncludes abstract. Includes bibliographical references.