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Thinking big... by Jac Messerschmidt
When things are going well it's easy to think big. When Eskom was a world-class utility, we dreamt big. Sadly, all that is water under the bridge. We have stopped thinking since the plug was pulled in 2008. We no longer think big, except in terms of blackouts, price increases and debt... (more) |
Eskom awarded US $3,75-billion World Bank loan in controversial circumstances by Chris Yelland, EE Publishers
It's official - we've got the loan. And from the limited information available at this time it appears that it is unconditional, this despite the lack of support from significant shareholders of the World Bank. The award will come as a great relief to those concerned about security of supply in South Africa... (more)
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Santam partners with Eskom solar water heater scheme Information from Eskom DSM
Short-term insurance provider Santam has partnered with Eskom to encourage households to switch from conventional electrical geysers to the energy-efficient solar water heaters.. (more) |
Supply scarcity, climate woes and energy subsidies? Information from EEnergy Informer
If there ever was a time to justify energy subsidies, now is not it. Can any reasonably sane economist - or for that matter anyone with some common sense - make a convincing case for energy price subsidies these days?... (more) |
The Jacob Marley column: Tsunami warning
It's always a bit eerie, he said, this calm before the storm. I was still in the dark until he finally said: "Twenty-four-point-eight meter waves are really frightening, especially in the electricity price!"... (more) |
In pursuit of a dream - Bill Venter and the Altron story
Book review by staff reporter EE Publishers
Perhaps what sets the tone for this whole book are the introductory chapters which describe the Venter family background. Dr. Bill might no doubt be proud to say that he came from poor white stock who fought the British in the Boer war... (more) |
Anglo to enter the power generation industry?
by EE Publishers staff reporter
The Anglo website has officially announced its study for the construction of a new coal-fired power station using circulating fluidised-bed combustion technology. What will be next?... (more) |
Coal quality analysis Article by Roy Johnson, features writer: Information from Eskom
This involves analysing coal from the mines, determining the combustion properties in a test facility, establishing performance profiles of each generation plant and working out a projection of operating efficiency... (more) |
Biofuels: The future in the past - Part 3
by Chris Meyer, technical journalist
Like so many things in life, there is nothing new under the sun. Ideas to cut dependence on oil, especially foreign oil, that sound very modern are actually quite old... (more) |
Partial discharge detection using RFI measurements
by Kamendren Govender, Luwendran Moodley and Alan Nesbitt, Doble Engineering
Detection and measurement of partial discharge (PD) phenomena, which are asymptoms of insulation deterioration, can provide early warning of insulation failure... (more) |
Protection of oil-filled transformers against explosions
by G Perigaud, SERGI Holdings
Oil filled transformer explosions can result in dangerous spillages, expensive damages and possible environmental pollution. To prevent explosions, a fast depressurisation strategy based on a quick oil evacuation was developed... ( more) |
Smart grid technology enabling cleaner energy
by Guido Bartels, Gridwise Alliance IBM
We must recognise the important role that information technology has. The internet, distributed intelligence and high performance computing will be among the great enablers of an open, flexible technology layer that can support smart grids... ( more) |
How should we rebuild relaying?
by Dr. Vladimir Gurevich, Israel Electric Corp.
According to the North American Electric Reliability Council, in 74% of cases the cause of heavy failures in power systems was the incorrect actions of relay protection. The reliability of a power system depends on the reliability of relay protection... (more) |
Transformer oil chemistry affecting the South African market
by Annalie Lombard, Eskom TSI
The South African transformer oil or insulating oil market has been dominated by the usage of uninhibited naphthenic oil for several decades. This however is rapidly changing and may have catastrophic consequences for uninformed users, regenerators and recyclers of transformer oil... ( more) |
Forecasting energy consumption in the ferrochrome sector
by Livhuwani Nedzingahe, M A Managa, University of Limpopo, and O Ncube, UNISA
The necessity for sustainable energy planning requires accurate forecasting of future electricity consumption. However forecasting electricity consumption is still a challenge in areas where this forecasts are used. The use of forecasts becomes much more critical during the movements of electricity demand... ( more) |
Battery monitoring
by Loic Moreau, LEM
In contrast to the advanced technology deployed in data storage centres, internet server farms and communications central offices, most of them rely for near 100% "up-time", or system-availability, on a very mature technology - the lead-acid battery... ( more) |
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