Featured: Energize

Medupi receives boiler registration

  Eskom’s Medupi power station has received its pressure equipment regulation certificate of registration for Unit 6 from the Department of Labour (DoL). Boiler registration with the DoL is required as no one may use a steam generator without such a certificate, and the boiler must be registered before energy can be applied to it and before the start of the […]

The rise of the carbon management accountant

  Delivering the SANEA lecture at the Sasol auditorium in Rosebank, Johannesburg on 14 October 2014, Dr. Marco Lotz, Nedbank’s sustainability carbon specialist, described the trading of carbon as being unique, saying that while trade usually involves the purchase or selling of an asset of some type, carbon trading is the purchasing of someone else’s […]

Protecting insulators from lightning damage

  Insulating joints (IJ) are used to electrically isolate pipeline systems or to isolate high-voltage-interference on pipelines into sections. Cathodically protected systems are electrically isolated until the dielectric strength of the insulating joint is breached. Surges caused by a lightning strike, into exposed parts of a pipeline system, may lead to the dielectric strength of […]

Managing Southern Africa’s electricity networks

  The City of Johannesburg in conjunction with City Power hosted the 64th Association of Municipal Electricity Utilities (AMEU) Convention at Gallagher Estate in Midrand from 5 to 8 October 2014. The theme for this year’s convention was “Moving towards Southern Africa’s electricity networks of the future”. The keynote address was delivered by Dr. Wolsey […]

Does coal have a future?

  Coal’s future does not look bright in America. Rules already in place and others proposed by the Environmental Protection Agency (EPA) will make it increasingly difficult to build new coal-fired power plants unless they come with carbon capture and storage (CCS) technology, currently an expensive and technically challenging proposition. Europe, where coal has enjoyed […]

Procurement models applied to IPP programmes in South Africa

  The Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) is largely viewed as a positive and innovative programme. We need a base-load procurement model that builds on the successes of the REIPPPP and extends these to base-load IPPs. Eskom’s future financial health presents a significant risk to procurement of renewables, thermal base-load and nuclear […]

Refocusing research into high-temperature superconductors

  Scientists around the world are trying to understand the phenomenon of loss-free electric power transmission by high-temperature superconductors. Materials which exhibit this effect at room temperature would bear huge technical potential. Symmetry changes in the electronic phases of high-temperature superconductors near their transition temperature have recently been attributed to doping effects. But an international team of […]

Prof. Eberhard to advise Dept of Science and Technology

  Energy and infrastructure expert Prof. Anton Eberhard has been appointed to the National Advisory Council on Innovation (NACI) – an advisory body to the Department of Science and Technology on the role and contribution of science, mathematics, innovation and technology, including indigenous technologies, in promoting and achieving national objectives. Prof. Eberhard directs the University […]

How to save money and the environment

  South African electricity prices increased 78% between 2008 and 2011, and by more than 20% year-on-year from 2010 to 2013. Prices are predicted to rise by a further 8% year-on-year until 2018, taking the cost per kWh to 89,13 cents in 2018, up from 65,51 cents in 2013 – and this is before we […]