Elec Eng, PhD- Power quality, Power System Reliability, ElectricityRegulation & Policy, Renewables. Views are my own

Cape Town, South Africa
Joined October 2011
A bad idea that serves someone else's agenda and not in the best interest of South Africa... SA could become an offshore wind powerhouse – World Bank -%20%40%20-%20by%20%40AntoinetteSlabb #MoneywebNews moneyweb.co.za/news/south-af…
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Come see what some of the landlords in shopping malls in SA charge their tenants for electricity. Prepaid power: Are you paying 25 percent more than you should? -%20%40%20-%20by%20%40AntoinetteSlabb #MoneywebNews moneyweb.co.za/news/south-af…
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Ethiopia's all in on #EVs is going to be interesting to watch. Especially how long distance and heavy trucking develops. They have very cheap electricity because of hydro...
China isn't just exporting EVs anymore, it's exporting electrification. On 29 April 2026, Ethiopia deployed its first fleet of 50 electric heavy-duty trucks at the Bishoftu International Airport megaproject, with another 42 trucks arriving soon. This isn't just about replacing diesel. It's about reducing fuel imports, cutting operating costs, improving air quality and proving that heavy transport can electrify, even in emerging economies. Don't be surprised to see the same model replicated across mining, logistics and construction projects throughout Africa, LATAM and the Global South. The energy transition isn't waiting for the developed world anymore. It's already being built across it. 🌍⚡ #EV #Electrification #Africa #EnergyTransition #Bettrification
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An important step by National Treasury. Looks like the beginning of consolidation in South Africa's electricity Distribution sector Treasury 'advises' 15 municipalities to let Eskom take over -%20%40%20-%20by%20%40AntoinetteSlabb moneyweb.co.za/in-depth/budg…
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California is often the US state held up as an example of how to do Renewables..... In reality Texas is a much better example,since they adding RE+BESS without the high electricity prices you find in California....
Other states talk a big game, but Texas builds. Texas is scaling battery storage so fast that it's almost keeping up with the other 49 states… by itself!
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National Treasury's debt relief program had no chance of success because it never addressed the fundamentals of electricity distribution in SA munics. Municipal arrears to Eskom rocketed by 71 percent in one year moneyweb.co.za/in-depth/budg…
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Economies of scale on SMRs vs conventional nuclear is always an open question for me. 🤷🏾‍♂️
“According to data from Wood Mackenzie, by 2030 SMRs should generate power at $182 per megawatt hour compared with $133 per megawatt hour for conventional nuclear. Natural gas is expected to sit at $126 per megawatt hour, while onshore wind and solar, backed up by battery, are projected to be around one-third less expensive.”
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ulrich minnaar retweeted
An important chart from @washingtonpost on energy costs – generation has become cheaper, but the cost of delivering energy to consumers across the grid has more than doubled.
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If the payback period on a household battery is 14 years in Australia at their electricity prices... What is it in places with much lower electricity prices??🤔🤔. And how do u reduce the payback time?
The Australian Energy Market Commission @the_AEMC just released a puff-piece for household batteries. Which prove that without subsidies, they definitely don't make any economic sense. They couldn't be paid back within warranty period. 1/
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A reminder that customer electricity bills can go up even if generation costs stay the same... Transmission + Capacity costs can outstrip energy cost savings.
Replying to @ShanuMathew93
👋It's worth digging into which parts of energy bills are driving cost increases. Our recent analysis with @nrgytariffxpert over a similar timeframe shows that policy choices and utility investments in transmission and distribution have continued to drive overall bill costs upward while the costs of generation and capacity have remained the same or lower, depending on the utility territory. The data shows that generation still makes up roughly the same percentage of bills as it did 10 years ago — on average about 45%, with differences among individual utilities. Leveraging competitive electricity markets is critical to discipline costs and shield consumers from investment risk as demand continues to climb: tinyurl.com/3pyc7cxf
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THIS is why you need inertia on the grid. Synchronous generators are the flywheel....
Adding a reaction wheel to an RC aircraft carrier to keep it stable.
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Transformers are going to crash a lot of transmission rollout ambitions, simply because the people drawing up the plans have no idea about the supply chains that go into building power networks
"On average, customers currently have to wait three years for high-voltage transformers and one year for distribution transformers. About 80% of high-voltage transformers and 40-50% of distribution transformers are imported. Meanwhile, the National Electrical Manufacturers Association predicts 2% annual electricity demand growth through 2050"
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The business model of making profits off energy sales is dying. solar PV will do for that and DX companies recovering fixed costs won't help. 30% electricity tariff increase is a reality,says ERASA - By @AntoinetteSlab moneyweb.co.za/news/south-af… via @Moneyweb
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Very concretely this means that China is developing nuclear anywhere between 3 to 7 times cheaper than comparable projects abroad, which is an insane advantage. For instance, the Hinkley Point C project in the UK is now estimated to cost $43 billion for just 3.2 GW of capacity (reuters.com/business/energy/…). These 10 new nuclear projects in China will together cost 40% less ($27 billion) for approximately 4 times the capacity (about 12 GW), which works out to them being about 6 times cheaper. The comparison with the United States is even more dramatic. The Plant Vogtle expansion in Georgia, which finally completed its second unit in April 2024, represents the only new nuclear construction in the US in decades. Originally estimated to cost $14 billion with completion by 2017, the final price tag ballooned to approximately $37 billion for two AP1000 reactors with a combined capacity of 2.2 GW (en.wikipedia.org/wiki/Vogtle…) This works out to an astounding $16.6 billion per gigawatt - nearly 7 times more expensive than Chinese nuclear construction. Put another way, while China will build 10 reactors (approximately 12 GW) for $27.4 billion, the US spent $10 billion more than that for just 2 reactors with one-fifth of the generating capacity. Looking at construction build times is also pretty crazy: Chinese nuclear plants are consistently completed in 5-7 years. For example, Fuqing Unit 5, the first Hualong One reactor, began construction in May 2015 and entered commercial operation in January 2021 - taking just 68 months (en.wikipedia.org/wiki/Fangch…). Fangchenggang Unit 3, another Hualong One reactor, started construction in December 2015 and was connected to the grid in January 2023, taking about 7 years despite pandemic delays (world-nuclear.org/informatio…) Even more impressive, China is planning to reduce construction times further with the next generation Hualong Two design, which aims to cut construction time from 5 years to just 4 years (en.wikipedia.org/wiki/Nuclea…) This means the build times are approximately 2 to 4 times faster than comparable projects in the West. Hinkley Point C in the UK is projected to take over 13 years (2017-2030) and the Vogtle project in the US took 15 years to complete (2009-2024). So to summarize, very concretely China is building nuclear plants 2 to 4 times faster than the West and 3 to 7 times cheaper. And the same type of efficiency differential applies (and is actually even more dramatic) for other forms of energy generation. As the saying goes "industry is energy transformed": when you have such a huge efficiency gap in energy infrastructure development, it compounds throughout your economy, giving Chinese companies an immense competitive edge that's likely to perdure for generations. Think about AI for instance. Sam Altman recently admitted, in a rare moment of clarity, that "eventually, the cost of AI will converge to the cost of energy" (xitter.cf/vitrupo/status/1920883…). Which by definition means that the country that will have a long-term competitive advantage in AI is the one with the cheapest energy. This, at heart, is the so-called "China threat": not military expansion but the ability to deliver strategic infrastructure at a fraction of the time and cost required in the West, which not only gives China immense domestic economic advantages but also ultimately global economic influence. If you're say Brazil or Indonesia, would you rather partner with Western companies charging 3-7x more and taking twice as long to build your energy infrastructure, or go with Chinese firms that can deliver the same results faster and dramatically cheaper? The economic calculus is inescapable, regardless of political considerations. The West can talk all they want about "countering the BRI" or other similar initiatives to compete with China but ultimately, unless they address this immense efficiency differential, all they have are mere words.
China is building nuclear with costs comparable to natural gas plants in the U.S. $2.3 million per megawatt. Let that sink in.
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This shouldn't be a surprise... Or news. Interesting that the CEO of Nvidia had to mention it. It says something about the lack of realism in the data industry.
NVIDIA CEO: "Every single data center in the future will be power limited...We are now a power limited industry."
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I will keep everyone up to date on how many of my Afrikaner colleagues are going to take up this offer refugee resettlement in the USA. Going to walk around the office next week asking people in the office if they leaving🧐🧐 cbsnews.com/news/trump-order…
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All those extra transmission lines do not come cheap.... Or fast for that matter Historic underspending on transmission may cost NTCSA dearly -%20%40%20-%20by%20%40AntoinetteSla moneyweb.co.za/news/south-af… via @Moneyweb
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ulrich minnaar retweeted
"Why are electricity prices so high if renewables are so cheap?" I have been asked. The main reason: expensive fossil gas still sets the price 63% of the time in wholesale electricity markets in EU27 & >90% in some countries. The graphic is from Draghi Report.
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