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 […]

Choice of PV backsheet material affects module life

DuPont Photovoltaic and Advanced Materials’ (DuPont’s) 2019 Global Field Reliability Study shows that the choice of backsheet material used on PV modules can result in significant degradation and negatively impact solar module performance. The report lays out failures with PET, polyamide and PVDF backsheets and issues with glass-on-glass modules. The report also highlights trends in […]

Integrating renewable energy sources into smart grids

There is global momentum to diversify electricity generation sources for economic, environmental and security reasons. Distributed generation (DG) enables more companies to enter the electricity market stimulating competition, encourages the development of renewable energy (RE) and limits the impact of events such as cyber attacks. However, conventional electricity distribution networks are poorly matched to the […]

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 […]

Balancing in-house and outsourced overhead powerline technical expertise

Most overhead transmission line (OHTL) asset owners employ a mix of in-house and outsourced expertise for the project management, engineering (system analysis and facility design), construction and maintenance of their OHTL facilities. The use of solely one of or a mix of in-house and outsourced expertise is done in a myriad of ways and for […]

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 […]