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Browsing by Author "Hughes, Alison"

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Cape Town energy futures: Policies and scenarios for sustainable city energy development

Author: Winkler, Harald ; Borchers, Mark ; Hughes, Alison ; Heinrich, Glen ; Visagie, Eugene Date: 2005 The purpose of this report is to develop some scenarios for Cape Town’s energy future. The simulation model, the Long-Range Energy Alternatives Planning (LEAP) system, has been used to simulate how energy might develop in Cape Town over the ... Read more
Clean energy and development for South Africa: Results, Report 3 of 3.

Author: Hughes, Alison ; Haw, Mary Date: 2007 The objective of this document is to report on the scenarios considered and compare the costs and social impacts using the sustainability indicators. The scenarios reported on are the energy efficiency improvements in the commercial, industrial, ... Read more
Clean energy and development for South Africa: Scenarios, Report 2 of 3

Author: Hughes, Alison ; Haw, Mary Date: 2007 This report is the second of three reports outlining sustainable development pathways for South Africa. It forms part of the reporting for the project entitled “Clean Energy and Development for South Africa” funded by the British Foreign ... Read more
Determining the impacts of selected energy policies on Gauteng's residential energy consumption and the associated emissions using LEAP as a tool for analysis : implications for sustainable livelihoods for the poor

Author: Senatla, Mamahloko Date: 2011 Energy is a key factor in economic growth and also central to meeting basic socio-economic goals. The use and production of energy in South Africa is associated with greenhouse gas (GHGs) emissions and pollution problems. Gauteng‘s residential ... Read more
Energy emissions: a modelling input into the Long Term Mitigation Scenarios process

Author: Hughes, Alison ; Haw, Mary ; Winkler, Harald ; Marquard, Andrew ; Merven, Bruno Date: 2007 Emissions from energy supply and use constitute by far the largest part of South Africa’s total greenhouse gas (GHG) emissions. Hence energy modeling is a key analytical basis for the information provided to the long-term mitigation scenarios ... Read more
Energy Modeling: A modelling input into the Long Term Mitigation Scenarios process

Author: Hughes, Alison ; Haw, Mary ; Winkler, Harald ; Marquard, Andrew ; Merven, Bruno Date: 2007 Emissions from energy supply and use constitute by far the largest part of South Africa’s total greenhouse gas (GHG) emissions. Hence energy modeling is a key analytical basis for the information provided to the long-term mitigation scenarios ... Read more
Greenhouse gas mitigation cost of energy from biogas : a techno-economic analysis of co-digestion of three types of waste in Cape Town

Author: Malla, Lesego Date: 2011 This paper investigates, in the context of Cape Town the emission reduction potential (ERP) of energy from biogas and related cost. Two project-scale models and a city-scale model were developed. Substrates for project model 1 were organic ... Read more
An investigation into increased productivity of small scale anaerobic digesters by means of temperature management

Author: Carolissen, Sanchez Date: 2018 The use of biological waste as a primary energy source for the production of biogas, by the process of anaerobic digestion, has been commonly used in the past by small communities and on a larger scale by waste water treatment plants. In the ... Read more
Measuring the rebound effect of energy efficiency initiatives for the future: A South African case study

Author: Davis, Stephen ; Cohen, Brett ; Hughes, Alison ; Durbach, Ian ; Nyatsanza, Kudakwashe Date: 2011 The rebound effect is a phrase which was originally defined to refer to the extent to which energy efficiency improvements are lost due to subsequent behavioural changes. This report documents almost three years of research work that set out ... Read more
Modelling the potential impact of net metering in South Africa

Author: McCall, Bryce Date: 2013 This work has two main objectives, first to create a working energy model of South Africa’s electricity sector using the open source software; OSeMOSYS, and secondly, using this model to understand the unstudied effects of net metered capacity ... Read more
Policy options for the sustainable development of the power sector in Zambia

Author: Tembo, Bernard Date: 2012 Many climate change studies project that occurrence of droughts (due to dry years) in Southern Africa will increase; this raises concerns over Zambia's electricity system. Currently, over 99% of Zambia's electricity is supplied by hydropower, ... Read more
Quantifying the energy needs of the transport sector for South Africa: a bottom-up model

Author: Merven, Bruno ; Stone, Adrian ; Hughes, Alison ; Cohen, Brett Date: 2012 Transport is a large consumer of energy in South Africa and vital for economic development. Currently the transport sector consumes 28% of final energy, the bulk of which, 97%, is in the form of liquid fuels. As the population grows and becomes ... Read more c b
Technology learning for renewable energy: implications for South Africa's long-term mitigation scenarios

Author: Winkler, Harald ; Haw, Mary ; Hughes, Alison Date: 2009 Technology learning can make a significant difference to renewable energy as a mitigation option in South Africa’s electricity sector. This article considers scenarios implemented in a Markal energy model used for mitigation analysis. It ... Read more