Falling electricity demand makes solar uptake more noticeable

  The long-held belief that electricity consumption would continue to grow is being challenged in a number of mature economies in the past few years. Since WWII, electricity demand growth has persistently fallen relative to growth rate of GDP in nearly all mature economies. Fig. 1 illustrates the negative growth in electricity use in the […]

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 […]

The Jacob Marley column: Supercritical

  Sir This topic invites a strange introduction. In October 1901, several daring Boer commandos attacked the rearguard of British Colonel Benson’s column at Bakenlaagte in Mpumalanga. During the ensuing melee, great bravery was demonstrated by both sides. Colonel Benson, a Magersfontein veteran, died the next morning from wounds received on the field of battle. […]

Steep tariff increases stunts economic growth

  South Africans can expect the increase in electricity tariffs next year to be between 10 and 13%. This is the opinion of market and industry research company, Frost and Sullivan, following the National Energy Regulator of SA’s (NERSA’s) recent announcement that it has approved the regulatory clearing account (RCA) for Eskom. This adjustment was given in […]

The industrial internet at work: Towards zero unplanned downtime

  The industrial internet is bringing about a profound transformation to global industry, by connecting more intelligent machines, advanced analytics, and people at work. This deeper meshing of the digital world with the world of machines has the potential to bring enormous economic benefits. We  estimate that this new wave of innovation could boost global […]

The Jacob Marley column: Hickory, dickory, dock

  Sir Clocks have always played an important role in power systems. From the earliest days when George  Westinghouse’s alternating current won the commercial battle against Thomas Alva Edison’s direct current, and in spite of the comeback that DC rightly made in later years, every generator (or inverter) in the system must run at synchronous […]