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Terry Mackenzie-hoy

Terry Mackenzie-hoy

Mackenzie-Hoy is a consulting acoustics and electrical engineer – machoy@iafrica.com

Electric cars one more time

19th October 2018 Audi recently flighted a number of advertisements about its new all-electric car. This is due in 2019 and, if my job was to be an electrical reviewer, I might well go on from there, citing charge times, range, power performance and how to jump-start it if the battery is flat. But I am not going... 

The elephant in the room

12th October 2018 From Wikipedia: "The expression 'the elephant in the room' defines a situation which refers to a question, problem, solution or controversial issue which is obvious to everyone who knows about the situation, but which is deliberately ignored because to do otherwise would cause great embarrassment... 

Adventures on the Eskom system – Part 4

5th October 2018 In my last column on the Eskom integrated power system, I explained that I worked for Eskom as the senior engineer for operations in the Eastern Cape for nearly two years. My region, the Eastern Cape region, included Port Elizabeth. Eastern Cape Control reported to me and all I had to do was to... 

Yet more adventures on the Eskom system

28th September 2018 In my last column on the Eskom integrated power system, I explained that I worked for the State-owned power utility as the senior engineer for operations in the Eastern Cape for nearly two years. The backbone of the national grid was the 400 kV powerline system and the 220 kV powerline system.... 

Recorded music

21st September 2018 From the first voice and music recordings of the 1800s, nothing much changed in the early part of the 1900s. Wind-up gramophones with paper mache cones were used for the reproduction of music that was stored on metal or wax discs. There was no electronic amplification – the recording was done by... 

Adventures on the interconnected electricity system

14th September 2018 In my last column on the Eskom intergrated power system, I explained that I worked for electricity utility as the senior engineer for operations in the Eastern Cape for just under two years. The backbone of the national grid was the 400 kV powerline system and the 220 kV powerline system, which... 

A reflection on latest IRP iteration

7th September 2018 The Integrated Resource Plan (IRP) is a government plan that supposedly sets out  the future development of the South African electricity generation system. In theory, government passes the plan around for comment by industry and municipalities and everybody agrees, after which government policy... 

Adventures on the interconnected power system

31st August 2018   I worked for State-owned power utility Eskom as the senior engineer for operations in the Eastern Cape for just under two years. It was a fabulous job. I reported to the chief engineer, who, in turn, reported to the regional manager. But both the chief engineer and I had a reporting... 

Electric cars: a real good thing?

24th August 2018 When I was young, our family would go to the Natal South Coast on holiday. The roads were not great; so, we would have to stay overnight halfway to Durban. At holiday times, there was a lot of traffic and sometimes the going was slow. Recently, Gregg and I went up the garden route on a project.... 

Riots and strikes

17th August 2018 We are in an era of strikes and riots. Workers at State-owned power utility Eskom have been on strike for weeks and have just settled, the taxi drives are on strike, the public workers union are threatening a strike, platinum workers are on strike, and so on. All strikes happen with the usual... 

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