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The future of coal in South Africa
by Prof. Rosemary Falcon, Fossil Fuel Foundation
 Coal has been the mainstay of economic development in South Africa for more than two centuries. However, the future of coal has now come into question worldwide, and serious consideration must be given to both the weaknesses and future opportunities for this commodity... (more) |
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The sorry state of energy policy in South Africa
by Chris Yelland CEng, EE Publishers
 President Zuma gave his state-of-the-nation address, and analysts listened attentively to what he had to say about energy policy. It is worth considering carefully, point-by-point, what was said in the address, in order understand the issues and nuances... (more)
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Ken King retires
 The end of November 2009 marked for Cigre SA chairman Ken King of Merz & McLellan the ultimate point everyone works to throughout their career; retirement at the magical age of 65 years... (more)
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Pending sale of Areva's T&D business won't affect existing local contracts
Information from Actom
Should the sale by Areva of France of its T&D business go through as planned, it will not impact on local group Actom's existing contractual arrangements involving Areva T&D technology and equipment, says Jack Rowan, MD of Actom's T & D division... (more) |
Role of southern African coal in a future carbon-constrained world economy
Information from the Fossil Fuel Foundation
Almost 90% of the world's primary energy is provided by the burning of fossil fuels: coal, oil and gas. However the era of using these cheap fossil fuels is coming to an end... (more) |
An argument for the introduction of IPPs in the SA electricity industry
by Marc Goldstein, Frost & Sullivan
Due to socio-economic pressures, state-owned electricity companies typically set prices that are too low to finance new investment. This creates additional problems when private investment is sought... (more) |
Criticism of Eskom leadership over electricity turmoil
by Oom Kaspas
The recent spate of comments by the previous leadership at Eskom makes dismay in the organisation's current leadership quite public. What is of interest in this regard is not so much the content of grievances but the origin thereof... (more) |
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The Jacob Marley column: Wonderful, wonderful Copenhagen
SA announced it would cut the growth of CO2 emissions 34% by 2020 and 42% by 2025 if the necessary financial support was forthcoming. Brave words indeed, that seem to fly in the face of a committed programme to add at least 9000 MW of coal-fired power station capacity by 2020... (more) |
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Cycling baseload plants
Information from EPRI
Today's low natural gas prices and increased dispatch of intermittent renewable generation are encouraging the use of baseload plants for cycling duty, which can lead to component damage and reliability problems. EPRI is working on an integrated framework that will help minimise these impacts... (more) |
Biofuels: Food to burn? Part 2
by Chris Meyer, technical journalist
Unlike many biofuels, processing agricultural waste into fuel does not compete with food production, or influence food prices. On the contrary, it helps with food production, as many wastes from producing and processing animals for meat are used instead... (more) |
Transmission constraints top cause of wind curtailment
Information from AfriWEA
The National Renewable Energy Laboratory (NREL) has just published a report that highlights the growing problem of wind energy curtailment, which occurs when wind plants are required to or choose to reduce their generation output... (more) |
New technology used for live upgrade of 88 kV lines
by Roy Johnson, EE Publishers
A problem facing utilities is equipment that has reached capacity and is unable to meet increased demand, often compounded by limited access to servitudes in urban areas. City Power was able to find an economic solution to those challenges using advanced technology... ( more) |
Surge impedance of 765 kV double circuit towers
by P H Pretorius, D Muftic, I Peter and C van der merwe, Trans-Africa Projects
The surge impedance of a power line tower is an important design parameter employed in the lightning performance and insulation co-ordination of the line... (more) |
Practical issues in spatial load forecasting
by Marcus Dekenah, Dr. Schalk Heunis, Enerweb; Sanjian Malapermal, Eskom; Andre Henrico, Geonet
The art of spatial load forecasting requires that a large body of disparate data be prepared as a starting point. Models for change are applied to estimate a new future. This paper describes and documents some of the typical practical issues experienced... ( more) |
Sophistication of relay protection: good intentions or the road to hell?
by Dr. Vladimir Gurevich, Israel Electric
Network connected computers already control almost all types of modern industrial production systems, electricity systems, telecomms systems and networks. New terms such as smart grid and relay protection with artificial intelligence have emerged in technical literature... ( more) |
Energy optimisation in plant processes
by Brendan P. Sheehan and Xin ( Frank) Zhu, Honeywell
The growing population and economic development in many countries throughout the world has caused energy and transportation fuel consumption to increase and refiners around the world are increasing capacity to meet these needs... ( more) |
Surge protection devices (SPDs)
Information from Alltech
Sophisticated and highly susceptible microprocessor based electronics and data communication networks are integrated across every sector of today's fast paced business world and need to be protected from damage caused by surges, spikes and transients... ( more) |
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