Medupi magic fails Eskom and South Africa – the stuff of nightmares

Following major problems that brought Eskom’s Medupi power station to its knees during the height of the load shedding last week, Medupi’s power station manager, Rudi van der Wal, is leaving Eskom to take up a position overseas. Van der Wal had resigned before the mess started, and was due to leave in about two […]

Machine learning algorithms in boiler plant root cause analysis 

It is often difficult to determine detrimental boiler conditions because the large number of boiler input and output parameters create a complex problem. Such was the case in this study, where a radiant superheater and internal desuperheater were retrofitted in an existing industrial water-tube boiler at a South African sugar mill. After installation, the steam […]

Deadly air: How Eskom’s coal-fired power stations are killing people

Eskom’s reliance on coal for electricity generation is proving to be deadly. According to new NASA satellite data analysis, Mpumalanga is the second worst SO2 emission hotspot in the world, beaten only by Russia’s enormous  smelters. This is due to the density of coal-fired power plants there. Although experts in medical research say that high […]

The gas turbines/battery hybrid: Ideal partner for wind and solar

The increasing amount of renewable energy in networks has led to challenging situations which require flexible balancing generation plant that can respond rapidly to changes in generation and demand. Open-cycle gas turbines (OCGTs) have been used successfully in this function, but the growth of renewable energy (RE) in some networks has outstripped the ability of […]

Impacts and health effects of air pollution by Eskom, Sasol Synfuels and Natref

. A new study report on the air quality and health effects of air pollution by Eskom, Sasol Synfuels and Natref in and around South Africa’s Highveld Priority Area (HPA) provides shocking evidence of the harmful effects caused by these organisations to the environment and to human health. The study report by Dr Gray is […]

Pairing solar and storage challenges gas peakers

Gas peakers have been around even before the recent rise of renewables made them even more indispensible. How else could grid operators fill in the void created by the vanishing solar generation when the sun sets at the end of the day or when wind stops spinning the wind turbines’ blades? And with natural gas […]