Alectrix Omicron March 2011 

Energize e-News   incorporating   SA Power & Energy 
  
E-Newsletter for the Power and Energy Sectors of Southern Africa

Issue 42, March 2011

The state of the renewables industry in SA  
by Dr. John Ledger, Sustainable Energy Society of Southern Africa (SESSA) 

Dr John LedgerThe sustainable energy sector in SA is a slumbering giant. Cheap and abundant coal-generated power has made way to sustainability - natural resources and human resourcefulness are the most valued commodities in generating the power to sustain the economy. We must do this in a way that future generations will inherit security of supply and sustainablity... (more)
Brace yourself - the electricity price trajectory for years to come
by Mike Rycroft, Mark Botha and Chris Yelland, EE Publishers
  
Mike rycroft 2010The generation capacity crisis in 2008 prompted a review of Eskom's build programme. The expectation of a short-duration adjustment, and thereafter electricity prices increases would follow inflation didnot materialise, and price increases much higher than inflation are expected for many years to come... (more)
The shocking state of plugs, sockets, adapters and portable socket-outlets in South Africa  
by Chris Yelland and Peter Adams, EE Publishers

Chris YellandProducts that allow electric plugs to be inserted incorrectly, thereby exposing users to live parts and the risk of a lethal electric shock, can be found for sale at major retail outlets in South Africa. The National Regulator of Compulsory Specifications (NRCS) says it has no grounds to take action. There is clearly something very rotten in the state of Socketland... (more)
Wind Power March 2011

Address by Prof. Jonathan Jansen at the 2011 EE publishers luncheon  


Prof. Jonathan Jansen was the guest speaker at the EE Publishers executive business briefing and luncheon held at Oakfield farm, Muldersdrift, on Friday 11 February 2011, where he gave a deeply moving and inspiring presentation and lesson on humility and forgiveness entitled: "Mind vs. Mouth"... (click here to listen)
The Jacob Marley column: Old king coal


Allow me to disabuse your erudite readers of the notion that I am a stark-raving green lunatic who would rather plaster solar panels all over the country-side than preserve nasty, smelly carbon-dioxide-spewing coal fired power stations that will cook the earth... (more)

High reliability data centre 
Information from Diesel Electric and Multisource

Multichoice has built a new 500 sq m data centre at their premises in Randburg, which is provided with a high reliability electricity supply system and an energy efficient cooling system... (more)
China and nuclear energy: Solving an energy crisis
by Chris Meyer, technical journalist

 

China is rich in coal and water resources, which are unevenly distributed throughout the country. Coal deposits are predominantly in the north and northwestern regions, while water resources are
mainly in the southwestern region... (more)

The role of coal in SA's proposed energy mix
by Gerrit Lok, Hatch

 

The IRP 2010 20-year electricity capacity plan is crucial towards determining South Africa's long-term electricity demand. At current projected GDP rates, South Africa is looking at another 120 - 140 years of coal consumption... (more)

Renewable energy generation connection capacity
Information from Eskom      

 

At present developers of RE projects do not have a clear idea of the available capacity for connection to the transmission network. To address this situation a study was undertaken to determine the available connection capacity for new generation... (more)

Electromagnetic forces in transformers under short circuit conditions     
by Nadim Mahomed, Powertech Transformers        


Short circuit events generate high current conditions in transformer windings. These currents inturn induce excessive forces in a transformer. Electromagnetic forces are important considerations in the design, manufacturing and operation of transformers... (more)

Testing standards for arc rated garments_Part 2  
Information from JAS Consulting   

South Africans are accepting electrical arc flash hazards as an everyday reality in the workplace. Electrical workers discuss the topic with keen interest and display an admirable understanding of the phenomenon... (more)
50 ms roaming for moving trains is now a reality 
Information from RJ Programmable     

Wireless communication is a natural fit for railway applications, particularly train-to-ground connections and rolling stock. It is crucial that clients on moving trains not lose any data during handover (the time spent roaming between APs)... (more)
A step forward for global electric vehicle roll-out   
Information from IEC       


The IEC and e8, a global organization of ten world leading electricity companies, have, for the first time, brought together all major stakeholders that need to collaborate to accelerate the global roll-out of EVs (electric vehicles)... (more)

All charged up for electric cars  
Information from Siemens        


Major cooperative projects are paving the way for the launch of electric vehicles. Experts from industry and universities are creating the technological basis for linking vehicles to the power grid... (more)

Capacity credit: Firm power from the wind  
by Mike Rycroft, editor     


Wind is a variable resource and as such is generally regarded as not being capable of contributing to firm power. A probabilistic approach that takes both demand  variation and wind generation profiles into account shows that wind can  be a firm power source... (more)

Power from wind  
by Rainer Weiss, Semikron      

 

Wind turbines with power electronics are increasingly popular all over the world. Semikron provides application-specific solutions combining power electronics and customer support... (more)

Lubrication systems for renewable energy production   
Information from Lincoln Lubrication     

 

Proper lubrication is key in ensuring a smooth operation, and in keeping costs to a minimum. It is therefore imperative to note that lubrication is a savings and not a cost... (more)

Institute and industry news
Views, comment and opinion
Company and product news

 

Expanding the value chain under one brand

First wet flue gas desulphurisation (WFGD) system

Small modular reactor developed

Precision power analyser with innovative measurement functions

Combined sample probe

User-friendly motor protection relay

Network-based control system enhanced

Replacing UPS batteries

Ultrasonic stack gas flow meter

Software update for SCADA system

Fieldbus training course

Predictive maintenance in Atex zones

Motor protection from 1 - 250 A

High voltage DC dielectric test sets

Monitoring and controlling plant by mobile radio

Ultra fast equaliser

SPD tester for preventive maintenance

Neutral earthing resistor monitor relays

Benefits of conductor marking

Kusile transformer contract

First high-rated autotransformer since  plant upgrade

Grid power to the MeerKat site

Complete MV mobile substation

Halting power cable theft from municipal networks

Compact digital microhmmeter

Sell-off of low voltage equipment business

Co-operation agreement for smart grid initiatives

Touch panel computers with extended operating temperature range

Emergency safety feature for variable speed drive

3-phase motor protection relay

Acquisition of local mine hoist business approved

Video and thermography analysing system for cement plants and rotary kilns

Ventilation company acquired

Hollow shaft encoder solution

National footprint extended to the Eastern Cape

Multimeter with energy monitoring capability

Customer-supplier partnership improves motor management

Helping secure city's water needs

Upgraded electronic motor protection relays

Pursuit of green economy, green jobs requires regulatory framework

Cables for wiring a photovoltaic system

Thousands of jobs waiting in renewable energy industry

Solar power delegation to Berlin and Leipzig

SESSA statement on collusion claims

Zimbabwean community sees the light

Record 51% growth for EU offshore wind power in 2010

Solar water heaters for childcare charity

Active magnetic bearings for large chillers

New hall effect current sensor for renewable energies

Spreading renewable energy know-how

Green building training

Additional channel for solar water heater rebates

Air-cooled variable-speed screw chiller High current measurement

  

Power and Electricity World

In this issue...
- The state of the renewables industry in SA
- Brace yourself - the electricity price trajectory for years to come
- The shocking state of plugs, sockets, adapters and portable socket-outlets in South Africa
- Address by Prof. Jonathan Jansen at the 2011 EE publishers luncheon
- The Jacob Marley column: Old king coal
- High reliability data centre
- China and nuclear energy: Solving an energy crisis
- The role of coal in SA's proposed energy mix
- Renewable energy generation connection capacity assessment
- Electromagnetic forces in transformers under short circuit conditions
- Testing standards for arc rated garments
- 50 ms roaming for moving trains is now a reality
- A step forward for global electric vehicle roll-out
- All charged up for electric cars
- Capacity credit: Firm power from the wind
- Electronics for wind power generation
- Lubrication systems for renewable energy production
- Institute and industry news
- Views, comment and opinion
- Company and product news
  
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