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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

BCA Research Warns Iran and Ukraine Ceasefires May Offer Limited Relief for Global Markets

BCA Research analysts have cautioned that potential ceasefires in both Iran and Ukraine may provide only temporary support for global financial markets, as investors could be underestimating ongoing geopolitical risks and...

Rising Airfares May Challenge Cruise Industry Growth Ahead of 2027 Booking Season

The cruise industry could face increasing pressure in 2027 if high airfare prices continue to climb, according to a recent Deutsche Bank research report. The study highlights how rising airline ticket costs are already...

Brazil Extends Fuel Subsidies and Tax Relief Measures Through July 2026 Amid Global Oil Market Volatility

Brazils government has announced a two-month extension of its fuel subsidy and tax relief measures, ensuring that support programs remain in place until July 31, 2026. The decision aims to protect consumers and businesses...

Kevin Warsh Faces Early Fed Test as Inflation Risks Challenge Rate-Cut Expectations

Bank of America (BofA) analysts believe incoming Federal Reserve Chair Kevin Warsh could face a difficult policy environment as rising inflation and economic uncertainty complicate the outlook for U.S. interest rates....

US Launches New Trade Investigation Into Vietnam Over Intellectual Property Concerns

The United States has initiated a new trade investigation into Vietnams handling of intellectual property (IP) rights, a move that could eventually lead to additional tariffs on Vietnamese imports. The investigation,...

Politics

Trump to Launch America 250 Celebration Amid Concert Cancellations

U.S. President Donald Trump is set to headline the opening ceremony of a major event celebrating Americas 250th anniversary after several scheduled musical performers withdrew from the program, according to reports. The...

US Plans Faster Military Drawdown in Europe, NATO Allies Face Greater Defense Role

The United States is reportedly preparing to accelerate the reduction of its military presence across Europe, signaling a major shift in NATO defense strategy. According to a report published by Germanys Welt am Sonntag,...

US to Accelerate Troop Withdrawal from Europe, NATO Allies to Review Plans Next Month

The United States is reportedly preparing to speed up the withdrawal of its military personnel from bases across Europe, according to a report published by Germanys Welt am Sonntag. The newspaper cited an unnamed Pentagon...

Trump Adviser’s Investment in Thrive Capital Draws Scrutiny Over Federal Contracts

A senior adviser in President Donald Trumps administration is facing scrutiny after a report revealed his involvement in government contract matters connected to companies backed by a venture capital firm in which he held...

US Southern Command Chief Holds Rare Military Meeting With Cuban Officials at Guantanamo Bay

A rare high-level military meeting between the United States and Cuba took place at the perimeter of the U.S. Naval Station at Guantanamo Bay, marking a significant development in U.S.-Cuba relations amid growing...

Science

Blue Origin New Glenn Rocket Explodes During Launch Pad Test, Delaying Space Ambitions

Blue Origin suffered a major setback after its uncrewed New Glenn rocket exploded during a launch pad test in Florida on Thursday, raising new challenges for Jeff Bezos space company as it competes with Elon Musks SpaceX...

SpaceX Delays Starship V3 Launch Ahead of Potential Record IPO

SpaceX on Thursday postponed the highly anticipated launch of its 12th Starship rocket test from Texas after technical issues interrupted the final countdown. The company now plans to attempt the Starship V3 launch again...

Trump Administration Releases New UFO Files and Apollo Mission Records

The U.S. Defense Department has released dozens of previously classified UFO-related files following an order from President Donald Trump, sparking renewed debate over unidentified anomalous phenomena (UAP) and government...

China vs. NASA: The New Moon Race and What's at Stake by 2030

The space race is back and this time, its a direct competition between the United States and China for dominance on the lunar surface. NASAs Artemis II mission recently made history when four astronauts flew farther into...

NASA Artemis II: First Crewed Moon Mission Since Apollo Takes Four Astronauts on 10-Day Lunar Journey

NASAs Artemis II mission launched Wednesday, marking humanitys return to crewed lunar exploration for the first time since the Apollo era. Carrying four astronauts aboard the Orion spacecraft, this historic 10-day mission...

Technology

Nvidia and Microsoft to Launch AI-Powered Windows PCs at Computex 2026

Nvidia and Microsoft are reportedly preparing to introduce a new generation of Windows PCs powered by Nvidia-designed processors, marking a significant step in the evolution of AI-enabled personal computing. According to...

SoftBank to Invest €75 Billion in France AI Data Center Expansion by 2031

SoftBank Group (TYO: 9984) has announced plans to invest up to 75 billion ($87.5 billion) in France to develop and operate 5 gigawatts (GW) of artificial intelligence data center capacity, marking one of the largest AI...

Kentucky School District Secures $27 Million in Social Media Addiction Lawsuit Settlements

A Kentucky school district has secured nearly $27 million in settlements from major social media companies over allegations that their platforms contributed to a growing student mental health crisis. The financial details,...

MongoDB Q1 FY2027 Earnings Beat Expectations, Raises Full-Year Outlook

MongoDB (NASDAQ: MDB) delivered stronger-than-expected first-quarter fiscal 2027 results, fueled by growing demand for its database platform among enterprises and organizations developing artificial intelligence...

SpaceX IPO Could Become Largest in History with $1.8 Trillion Valuation Target

Elon Musks SpaceX is reportedly moving forward with plans for a historic initial public offering (IPO), targeting a valuation of at least $1.8 trillion. According to a Bloomberg News report citing sources familiar with the...
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