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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The future impact of the current electricity crisis on Sasol South Africa

Terblanche, Michelle 12 1900 (has links)
Thesis (MPhil)--Stellenbosch University, 2008. / Towards the end of 2007, South Africa started experiencing widespread rolling electricity blackouts as the electricity demand exceeded the supply from energy giant Eskom. The crisis reached its tipping point when industries, including Sasol, were requested to reduce their electricity consumption by 10%. The purpose of this research was to identify alternative futures for Sasol in the light of the current electricity crisis. The scenario process was used to develop the following independent scenarios for Sasol: • Fuel to the fire. The country is amidst an ongoing nationwide electricity crisis and Sasol is still dependent on Eskom for more than 50% of its electricity demand. The end result is reduced turnover, shortage of liquid fuels and a decrease in Sasol’s contribution to the economy. • Ignorance is bliss. This is a world where Sasol is independent of Eskom for electricity supply despite the country’s continuing electricity crisis. Independence is ideal but unfortunately it comes at a cost. It is about taking painful action in the near term to forestall even more painful consequences in the future. • Blessing in disguise. Sasol is dependent on Eskom for the majority of its electricity requirement. The reliability of electricity supply in South Africa recovered and there is an overall awareness regarding energy efficiency and a positive adoption of alternative energy technologies. • Icing on the cake. Sasol is completely independent of Eskom and Eskom managed to restore the integrity of electricity supply. The end result, Sasol can continue with its planned growth and expansion. In order for the scenarios to be useful for Sasol, it is necessary to incorporate them into the strategic agenda. Some considerations include the gradual replacement of traditional fossil fuels, carbon capture and sequestration, advanced coal electricity generation (clean coal technology), increasing the use of renewable energy sources and developing the hydrogen economy.
22

The attitude, awareness and willingness to pay for solar water heaters in the Cape Town region

Ravens, Bradley 12 1900 (has links)
Thesis (MDF (Development Finance))--Stellenbosch University, 2008. / ENGLISH ABSTRACT: This study focuses on the level of acceptance, awareness, and willingness to pay for a solar water heater in Cape Town. When referring to 'acceptance' the study is referring to a respondent's preparedness to adopt the use of a solar water heater and to have one installed at his/her home. When referring to the respondent's 'awareness', reference is made to the degree of knowledge a respondent possesses about the use and basic functioning of solar water heaters. The 'willingness to pay' is an indication of a respondent's preparedness to pay for a solar water heater and how much he/she is prepared to pay. This research was initiated because it was felt that more households in the middle and upper-income sector should be making use of solar water heaters in Cape Town in an effort to reduce their electricity consumption. Furthermore, it is in this income sector that we find the greatest consumption of electricity for the sale purpose of heating water. A questionnaire was compiled to gauge the knowledge, opinion and acceptance of solar water heaters in Cape Town. These questionnaires were distributed in various suburbs within Cape Town, and focused on middle-income to upper-income groups. The middle and upper-income households would install solar water heaters if they received an incentive such as state subsidies. These households also need further education in relation to solar water heaters because their knowledge in this regard seems limited. Aesthetics and costs also seem to influence whether the middle and upper-income group would install solar water heaters, and income may also play a role in group affiliation. / AFRIKAANSE OPSOMMING: Hierdie navorsing fokus op die aanvaarding, bewustheid en bereidheid om vir sonkrag waterverhitters te betaal in Kaapstad. Die verwysing na 'aanvaarding' dui op die respondent se gewilligheid om die sonkrag-waterverhitter te gebruik en om een in sy/haar huis te installeer. Die verwysing na die respondente se 'bewustheid', dui op hulle kennis oor die basiese werking van 'n sonkrag-waterverhitter. Die 'bereidheid' om te betaal is 'n aanduiding van die respondent se bereidheid om te betaal vir 'n sonkrag-waterverhitter en hoeveel hy/sy bereid is om daarvoor te betaal. Hierdie navorsing is onderneem omdat die gevoel bestaan dat nie baie huise in die middel- en hoe-inkomste huishoudings gebruik maak van 'n sonkrag-waterverhitter om hul elektrisiteitsverbruik te verminder nie. Die huishoudings in hierdie inkomstesegment is die grootste verbruikers van elektrisiteit slegs vir die verhitting van water. 'n Vraelys is opgestel om die kennis, opinie, en aanvaarding van sonkrag-waterverhitters in Kaapstad te bepaal. Die vraelyste is in verskeie woongebiede in Kaapstad versprei, met 'n fokus op die middel- en hoë-inkomste huishoudings. Die huishoudings in die middel- en hoë-inkomstesegment sal sonkrag-waterverhitters installeer as hulle 'n aansporing kry soos 'n staatsubsidie. Die respondente van die middel en hoë-inkomste huishoudings het verdere opvoeding nodig rakende sonkragwaterverhitters, want hul kennis in die verband is min. Dit blyk of estetiese en koste-oorwegings die middel- en hoë-inkomste huishoudings beinvloed met betrekking tot die installasie van sonkrag-waterverhitters, en inkomste mag ook 'n rol speel ten opsigte van groepaffiliasie.
23

Urban conservation and urban spaces in post - 1994 South Africa : a case study in KwaDukuza

Mthembu, Brian Mondli 05 1900 (has links)
The purpose of this research was to assess the condition of open spaces, community perceptions, benefits, threats and challenges faced by open spaces within KwaDukuza. The research is regarded as important within the context of threats posed by uncontrolled development to urban biodiversity. Primary and secondary documentary sources on open spaces in the study area were consulted. Data was gathered through the use of a questionnaire, with a sample of 100 respondents; observation; structured interviews with key respondents and discussions with focus groups. The research revealed a consistent pattern of threatened urban biodiversity when compared with other studies. The main finding was that the open spaces were under severe strain and threat in the area of KwaDukuza due to development. There was a noted lack of knowledge about key tools meant to safeguard the environment. The study concluded by recommending community participation, education and an open space policy framework for KwaDukuza. / Geography / M.A. (Geography)
24

Urban conservation and urban spaces in post - 1994 South Africa : a case study in KwaDukuza

Mthembu, Brian Mondli 05 1900 (has links)
The purpose of this research was to assess the condition of open spaces, community perceptions, benefits, threats and challenges faced by open spaces within KwaDukuza. The research is regarded as important within the context of threats posed by uncontrolled development to urban biodiversity. Primary and secondary documentary sources on open spaces in the study area were consulted. Data was gathered through the use of a questionnaire, with a sample of 100 respondents; observation; structured interviews with key respondents and discussions with focus groups. The research revealed a consistent pattern of threatened urban biodiversity when compared with other studies. The main finding was that the open spaces were under severe strain and threat in the area of KwaDukuza due to development. There was a noted lack of knowledge about key tools meant to safeguard the environment. The study concluded by recommending community participation, education and an open space policy framework for KwaDukuza. / Geography / M.A. (Geography)

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