Posts tagged as electricity

What are microgrids?

Microgrids are stand-alone power generating, distribution, and storage systems which can be operated independently or connected to the primary utility grid. By locally optimising various generation sources, such as solar PV, gensets, the grid and energy storage, a microgrid can create a range of financial and environmental value streams for an organisation. This article describes […]

Eskom’s big blunder: How poor decisions and corruption caused load-shedding

South Africa is in the midst of an electricity crisis, which is curiously the result of plans by Eskom to prevent this exact scenario from happening. Energy analyst and EE Publishers MD Chris Yelland explained that Eskom was faced with two choices a few years ago: Spend money on maintenance of old power plants to […]

No more load-shedding?

According to the minister of public enterprises, Pravin Gordhan, Eskom has committed itself to keeping the lights on this winter by adding additional generating units to the grid and limiting the amount of generating capacity lost to unplanned outages. Speaking to a large media contingent at a hurriedly arranged media briefing at the Lethabo power […]

Nero fiddles, while the prospect of load shedding in South Africa continues

. Electricity customers and the public in South Africa experienced Stage 2 (2000 MW) manual rotating load shedding in late 2018 and Stage 4 (4000 MW) in February and March 2019. However, while Nero fiddles the prospect of further load shedding is set to continue in the months ahead. But there seems little sign that […]

Powering the steel industry

Both metallurgical and other industrial plant processes, as well as large drive procedures depend on reliable, highly specialised transformers. In steel plants, for example, it is crucial to supply high currents for AC and DC electric as well as ladle furnaces. Electrolysis processes operate with heavy-duty rectifiers which are fed by rectifier transformers. Large drive […]

Cutting energy costs with microgrids

As South Africans suffer another round of power interruptions, imposed upon them by the national power utility which is unable to generate sufficient electricity to keep the lights on, advanced technology offers a realistic, affordable and environmentally-friendly solution. Six months ago, Energize visited Eaton’s factory in Wadeville, Germiston, to see a sophisticated microgrid which had […]

Potential impact of a low carbon transition on South Africa

For as long as markets have existed, businesses and industries have been disrupted by new technology. While the shape of decline has looked different in each industry, every structural change or “transition” has resulted in losses which have impacted investors, banks, workers and government. Transitions associated with climate change pose great risks to established economic […]

Least-cost integrated resource planning with cost-optimal climate change mitigation

The University of Cape Town’s Energy Research Centre recently undertook an alternative technical assessment of South Africa’s electricity future to inform debate on IRP 2018, South Africa’s latest electricity plan, which is due to be released shortly. The authors used a similar modelling methodology, with the addition of an economic model to account for key […]

The advantages of corporate power producer agreements

Baker McKenzie, a specialist global law firm based in Johannesburg, hosted a seminar recently which considered the benefits of corporate power producers’ agreements (PPAs) with independent power producers (IPPs) in South Africa. Principal benefits for corporates include protection from load-shedding, the ever-increasing tariffs, unreliable electricity supply, compliance to clean energy and low emission targets, and […]