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Hartmut Winkler

Hartmut Winkler

Professor of Physics, University of Johannesburg
A lifelong academic who served stints as Dean of Science and acting Deputy Vice-Chancellor: Academic at the former Vista University in South Africa and was until recently the Head of Physics at the University of Johannesburg.

Research interests range from astrophysics through to atmospheric physics, solar energy and energy supply.

A vocal commentator on South African energy issues, especially the renewables versus nuclear debate.

South Africa’s electricity crisis: what political parties say in their election manifestos about solving it

Mar 28, 2024 12:04 pm UTC| Insights & Views Politics

South Africa is in the middle of a deep electricity crisis. In 2023 the public, many of whom are voters, experienced the worst loadshedding to date, losing power for an average of five hours a day. The power shortages...

South Africa's new plan to end power cuts is seriously flawed. Here's why

Jan 09, 2024 23:03 pm UTC| Economy

South Africa experienced unprecedented electricity shortages in 2023 as ageing coal plants became increasingly prone to breakdowns. The country urgently needs to develop new electricity generation facilities and reduce...

South Africa power outages: some improvement but a long way to go before the grid is stable

Nov 01, 2023 07:12 am UTC| Economy

Over the past few months, South Africas power generation sector has performed better than expected. Four factors explain this: an acceleration of solar power installations, less frequent breakdowns at power stations, a...

South Africa's nuclear sector has failed its test: the Koeberg nuclear plant life extension

Aug 21, 2022 17:23 pm UTC| Science Economy

South Africas only nuclear power plant, Koeberg, has frequently been in the news in 2022, all for the wrong reasons. Its operating licence expires in 2024, and its continued operation thereafter depends on critical...

Global Geopolitics Series

Russia's nuclear power exports: will they stand the strain of the war in Ukraine?

Mar 07, 2022 10:13 am UTC| Politics

Russias invasion of the Ukraine has led to massive sanctions and resulted in heavy blows to its economy. It has also led to unprecedented condemnation of Russias leadership, as well as growing international...

Power shortages will remain a big challenge in a post-COVID-19 South Africa

Apr 21, 2020 12:42 pm UTC| Economy

The decline in economic activity precipitated by the spread of COVID-19 and ensuing lockdown in South Africa is also affecting the countrys electricity supply dynamics. The power outages that were disrupting the economy...

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Economy

Beyond the spin, beyond the handouts, here’s how to get a handle on what’s really happening on budget night

Three weeks from now, some of us will be presented with a mountain of budget papers, and just about all of us will get to hear about them on radio, TV or news websites on budget night. The quickest way to find out what...

Johannesburg in a time of darkness: Ivan Vladislavić’s new memoir reminds us of the city’s fragility

Ivan Vladislavić is Johannesburgs literary linkman. He tells us, in the first pages of his new book, The Near North, that before cities were lit, first by gaslight and later electricity, people of means paid torchbearers...

Economist Chris Richardson on an ‘ugly’ inflation result and the coming budget

With Jim Chalmerss third budget on May 14, Australians will be looking for some more cost-of-living relief beyond the tax cuts although they have been warned extra measures will be modest. As this weeks consumer price...

Why is the London Stock Exchange losing out to the US

London Stock Exchange (LSE), which can trace its heritage to the coffee houses of the 17th century, is failing. The volume of shares traded is sharply declining, and some UK companies are swiftly moving to the US...

Why Germany ditched nuclear before coal – and why it won’t go back

One year ago, Germany took its last three nuclear power stations offline. When it comes to energy, few events have baffled outsiders more. In the face of climate change, calls to expedite the transition away from fossil...

Politics

Labour can afford to be far more ambitious with its economic policies – voters are on board

To say that the Labour party is flying high in the polls is something of an understatement. But despite its consistent lead against the Tories, the opposition finds itself in a rather odd position: on the cusp of power but...

History for sale: what does South Africa’s struggle heritage mean after 30 years of democracy?

One of my favourite statues is the one of Nelson Mandela at the Sandton City shopping centre in Johannesburg. Larger than life, its oversized bronze shoes shimmer in the evening light, polished by the hands of many...

Sudan: civil war stretches into a second year with no end in sight

In the early hours of April 15 2023, the Rapid Support Forces (RSF) a Sudanese paramilitary force attacked the military airstrip in the town of Merowe and deployed troops across strategic locations in Sudans capital,...

Joe Biden Proposes Record 44.6% Capital Gains Tax in Latest Budget Plan That May Favor Cryptocurrencies

President Joe Biden has proposed raising the capital gains tax to an unprecedented 44.6% in a bold fiscal move, targeting the wealthiest Americans. This hike is part of his 2025 budget proposal to reduce income...

Turkey’s suppression of the Kurdish political movement continues to fuel a deadly armed conflict

The world has 91 democracies and 88 autocracies. Yet 71% of the worlds population (some 5.7 billion people) are living under autocratic rule, a big jump from 48% ten years ago. This trend towards authoritarianism can...

Science

A Nasa rover has reached a promising place to search for fossilised life on Mars

While we go about our daily lives on Earth, a nuclear-powered robot the size of a small car is trundling around Mars looking for fossils. Unlike its predecessor Curiosity, Nasas Perseverance rover is explicitly intended to...

The rising flood of space junk is a risk to us on Earth – and governments are on the hook

A piece of space junk recently crashed through the roof and floor of a mans home in Florida. Nasa later confirmed that the object had come from unwanted hardware released from the international space station. The 700g,...

Peter Higgs was one of the greats of particle physics. He transformed what we know about the building blocks of the universe

Peter Higgs, who gave his name to the subatomic particle known as the Higgs boson, has died aged 94. He was always a modest man, especially when considering that he was one of the greats of particle physics the area of...

Could a telescope ever see the beginning of time? An astronomer explains

The James Webb Space Telescope, or JWST for short, is one of the most advanced telescopes ever built. Planning for JWST began over 25 years ago, and construction efforts spanned over a decade. It was launched into space on...

US media coverage of new science less likely to mention researchers with African and East Asian names

When one Chinese national recently petitioned the U.S. Citizenship and Immigration Services to become a permanent resident, he thought his chances were pretty good. As an accomplished biologist, he figured that news...

Technology

Nate Geraci Highlights Correlation Between Bitcoin and ETF Performance

Nate Geraci, president of The ETF Store, emphasized the strong linkage between Bitcoins market movements and the performance of Bitcoin ETFs. This correlation is evident as shifts in Bitcoins price significantly influence...

Google Cloud Launches Web3 Portal, Stirring Mixed Reactions in Crypto Community

Google Cloud has unveiled a new Web3 portal featuring blockchain development tools, testnets, and educational resources, sparking diverse reactions across the cryptocurrency industry. While some praise the initiative as a...

Ethereum Surges 6%, Outshines Bitcoin as Consensys Sues SEC Over Security Status

Ethereums price has surged by over 6% to $3,320, outperforming Bitcoin amidst ongoing legal challenges. Consensys, backing Ethereum, has initiated a lawsuit against the SEC, contesting its attempt to classify ETH as a...

DOJ Counters Dismissal Bid in Tornado Cash Co-founder's Legal Battle

In a recent legal development, the DOJ firmly opposed a motion to dismiss charges against Roman Semenov, co-founder of Tornado Cash, highlighting potential jury issues over the crypto mixers operations and sanction...
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