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B T Radebe, Z Huan
Pág. 1 - 15
Doel: Die opberging van energie is voordelig om ons lewens en die omgewing te verbeter. ?n Latentehitte-termieseenergieopbergstelsel (LHTEOS) het groot potensiaal om by te dra tot verbetering van dit wat tussen die vraag en aanbod van energie plaasvind. ...
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Rozenda Hendrickse
Pág. 289 - 299
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F.J. Ramos Real, B. Tovar
This study analyses the determinants of the technical efficiency performance for Southern African Power Pool (SAPP) power utilities in the period 1998-2009, excluding South Africa?s Eskom. The study formulated an explicit model for technical inefficiency...
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N. Ntsadu
During an exceedance of the voltage unbalance limit at a busbar there is a need to determine which entity is causing the problem between Eskom, wind farms and other entities that can influence the voltage unbalance at the busbar. There were voltage unbal...
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Poul Sorensen, Marisciel Litong-Palima, Andrea N. Hahmann, Schalk Heunis, Marathon Ntusi, Jens Carsten Hansen
Variable renewable generation, primarily from wind and solar, introduces new uncertainties in the operation of power systems. This paper describes and applies a method to quantify how wind power development will affect the use of short-term automatic res...
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M.E. Storm, R. Gouws, L.J. Grobler
In most countries the agricultural sector, especially crop irrigation, is a considerable energy consumer. Farm irrigation studies in South Africa showed that energy and water is wasted on a large scale and there is a large potential for improving efficie...
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Maseapei Elizabeth Girmay, Delson Chikobvu
This paper fits the three-parameter log-logistic (3LL) distribution to sulphur dioxide (SO2) monthly emissions in kilograms per gigawatt hour (kg/GWh) and in milligrams per cubic nano metre (mg/Nm3), at 13 of Eskom?s coal fired power-generating stations ...
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Roman Günter Votteler, Alan Colin Brent
The economic situation of mining corporations operating in South Africa has in recent years created considerable challenges in staying globally competitive. One reason for this is the increase in average electricity costs from 7% to 20% of total operatio...
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Mantombi Bashe, Mercy Shuma-Iwisi, Michael Anton van Wyk
Portfolio theory is used to evaluate the cost and risk of the South African electricity generation portfolio in a bid to find out how were the costs and risks of the South African electricity generation portfolio managed following the 2007 and 2008 load ...
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M. E. Storm, R. Gouws, L.J. Grobler
In South Africa the agricultural sector is a significant energy user, with irrigation pumping being the single biggest electricity-demanding farming activity. The agricultural and commercial sectors contribute 6.5% to annual South African electricity sal...
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