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The case for nuclear power
by Ayanda Myoli, CEO of NIASA
 The Demand for electricity in South Africa is expected to increase to about 454 TWh in 2030 as compared to 260 TWh last year according to the integrated resource plan (IRP) 2010. We need all the energy we can get, and nuclear is one of the viable energy sources for our country... ( more) |
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Eskom keeps the lights on while achieving strong financial performance
Information from Eskom
Eskom achieved a net surplus of R8356-million after tax. Income tax amounted to R3261-million. All surplus or profit is to be retained and reinvested in the business. The surplus was mainly due to revenue growth attributable to increased electricity tariffs... ( more) |
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Game changer: Shale gas bonanza
information from EEnergy Informer
The energy world is rapidly changing and the stakeholders are adjusting as best as they can. Oil majors, for example, are gradually becoming gas majors - acknowledging the realities of shrinking reserves of oil and mass discoveries of non-conventional gas... ( more) |
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Eagerly awaited ISO energy management standard published
Information from Energy Cybernetics
The long-awaited launch of International Standard ISO 50001 on 15 June 2011 has added further impetus to energy management in South Africa. ISO estimates that the standard could have a positive impact on some 60% of the world's energy use... ( more) |
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The Jacob Marley column: Here we go again...
"I believe," said the ghost of Christmas past, "that there is nothing as tempting for the powers-that-be than to meddle with something that works well. History is littered with examples: the nationalisation of industries, the creation of behemoth state institutions that get bogged down in their own incompetence... ( more) |
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SA wind energy industry calls on government to continue on REFIT path
information from SAWEA
SAWEA is concerned that the DoE's intention to pursue a competitive bidding process for the first rounds of South Africa's renewable energy procurement could adversely affect investor confidence and destroy South Africa's nascent renewable energy industry... ( more) |
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With deepening unease: Part 1
by Chris Meyer, technical journalist
A series of dramatic explosions at the Fukushima Daichi (Daichi meaning "Number One" in Japanese ) nuclear power plant attracted coverage away from the massive damage and more than 24 000 fatalities of the tsunami... (more) |
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Gas lights the way for a renewable future
Information from Alstom
According to the International Energy Agency (IEA), gas is expected to play a key role in meeting the world's energy needs with a projected demand rise of 44% between now and 2035, led by China and Middle East... ( more) |
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Compressed air batteries
by Andrew Goodwin and James Derby, Energetix Group (Pnu Power)
Engineers at PNU Power have harnessed the energy stored in compressed air to provide backup power in high voltage electricity substations. The PnuPower compressed air UPS provides a battery free solution to backup power needs... (more) |
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Designing an effective power alternative
by Jack Ward, Powermode
Companies are once again turning to alternative power sources in order to maintain up-time and remain competitive. While solar, wind and even wave generated power might satisfy the "green lobby" the reality is there are very few alternatives to mains power... (more) |
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Avoiding material theft
Information from Exoweld
Throughout history gold has always been highly valued and sought after. Today, there is another metal contender holding great value and in industries such as telecommunications, utilities, electrical contracting, railways - copper... (more) |
Smart grid: new prospects or new problems?
by Vladimir Gurevich, Israel Electric Corporation
The term "smart grid" today refers to almost the entire power industry - from production, grid structure and configuration to metering and information-measuring systems, automated control systems, communication between power facilities and relay protection... ( more) |
Strategic substation protection system for Namibia Power Corporation
Information from H3i Squared
Namibia is a country rich in natural resources and NamPower has recently invested in strengthening its transmission network by building a 980 km, 300 MW, 350 kV HVDC interconnecting link to directly connect potential suppliers in the north with the Namibian grid... ( more) |
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Construction of overhead lines in environmentally sensitive areas by A Burger, J Diez Serrano, P Marais and B Jacobs, Trans Africa Projects
The Palmiet Stikland line now provides improved load flow and grid stability in the Cape Peninsula, and formed an important component in the initiatives Eskom undertook since 2006 to address power shortages that affected the region... ( more) |
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Energy savings - a strategy in utilities
by Evan Dent, Endress+Hauser
A monitoring and targeting strategy proposal is presented to assist in realising sustainable energy savings in key energy user utilities in processes... (more) |
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Motors and drives for improving energy efficiency
by Fanie Steyn, ABB SA
Industry and commerce face pressure to reduce energy consumption and provide security of power is placed on suppliers. These pressures emanate from a background of ever-rising energy prices and industry and consumers demand more energy efficient products... (more)
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Essentials for good electrical earthing
Information from Exoweld
Electrical earthing must minimise injury from step and touch potentials during electrical faults and lightning, while providing a stable reference for the electrical and RF circuits, dissipating the energy from lightning strikes, and providing a low impedance path to earth... (more) |
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The use of search coils to monitor induction motor stator flux
by Glyn Pole and David Holifield, University of Wales
A search-coil derives fault data obtained from a system consisting of an induction motor driven mechanical load. The data is obtained from each of two separate search coils each wound around a single stator pole and employed to monitor the motor flux... (more) |
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Investigating the feasibility of small hydropower: A case study
by Ilyas Omar, Noluthando Sebezo and Vusikaya Matshoba, Cape Peninsula University of Technology
The intention of this study is to investigate the potential for implementing small hydropower (SHP) systems for electricity generation in rural areas of South Africa and report on a preliminary design for a selected site... (more) |
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South Africa's hydropower options
by Wilhelm Karanitsch, Andritz Hydro
SA faces a problem of insufficient generation capacity and a reserve margin below international accepted levels. The government is promulgating the new IRP 2010 which is indicating a greater role for renewable energy technologies... (more) |
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SA's first solar thermal chilled water system
by Mark Botha, features editor, EE Publishers
In September 2009, South Africa's first solar thermal driven chilled water system with a cooling capacity of 35 kW was installed as a pilot solar air-conditioning project on the roof of the Netcare Moot Hospital in Pretoria... (more) |
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