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Topic: Renewables

[Episode #276] – Electricity Reform in South Africa

This is the second part of a miniseries about South Africa's energy transition, based on Chris' travels there in September and October of 2025. The first part was Episode 264, in which we heard how the end of apartheid precipitated reform of the country's energy systems.

South Africa is arguably one of the most exciting places in the world to see the energy transition unfolding right now, because after nearly 150 years of relying almost exclusively on coal for its energy, it is finally implementing reforms that will allow its electricity system to integrate more renewables onto its grid.

Eskom, the state-owned monopoly, has owned and controlled the grid for over a century. Its aging coal fleet still provides around 80 percent of the country's electricity, even though solar power is now far cheaper, and it has been able to block new renewable projects because they threatened its coal business. But now Eskom is being broken up into separate units for generation, transmission, and distribution. And the country is launching its first wholesale electricity market — the South Africa Wholesale Electricity Market, or SAWEM — opening the door for renewables to compete with coal.

At the same time, there is also an enormous and growing informal supply in the form of distributed solar — enough to meet a quarter of the country's electricity demand. Many businesses and residents are installing their own solar and battery systems, often without any kind of permission from or notice to the utility. That is simultaneously creating an entirely new and complex sort of electricity system that's hard for utilities to manage, while also making the system far more resilient. In fact, distributed solar batteries are credited with putting an end to the "load shedding" blackouts that plagued customers for over 15 years.

Formally and informally, South Africa is rushing headlong from its coal-fired past and into the renewably powered future. Clean generation led by solar surged past 30 percent in late 2025, while coal fell to a record monthly low. South Africa's experiment in restructuring a vertically integrated, coal-dependent grid offers an early look at the politics, economics, and surprises that other markets will face as they take on their own transitions to renewables.

In this episode, we'll be hearing from experts who are closely involved with the electricity reforms in South Africa. In the next episode, we'll see how those reforms play an important role in delivering a just transition.

Guest #1:

Dr. Josh Dippenaar is a researcher and practitioner focused on DER grid integration in South Africa. He has published on rooftop PV economics, utility tariff design, interconnection policy, and electricity markets in the developing world. He is currently working on developing new markets with Mulilo, an Independent Power Producer (IPP) in Southern Africa. Previously, he was an energy engineer with Sustainable Energy Africa, and a senior engineer at the Centre for Renewable and Sustainable Energy Studies. He has a Masters of Engineering and a PhD in Electrical Engineering from Stellenbosch University.

On LinkedIn

Guest #2:

Keith Bowen is a power systems economist and Senior Manager: Market Operator at the National Transmission Company of South Africa (NTCSA) in the Eskom Transmission Division. He has extensive experience in energy economics and planning in the power sector, and is responsible for developing wholesale pricing mechanisms, supporting internal transfers within the vertically integrated utility, and payments to independent power producers. With the restructuring of Eskom, he is involved in developing future market mechanisms and trading arrangements between the transmission subsidiary and other industry participants. Keith has bachelor’s degrees in computer science and economics, and a master’s degree in economics from Witwatersrand (Wits) University.

On LinkedIn: https://www.linkedin.com/in/keith-bowen-9674821a/

Guest #3:

Dr Kenneth Creamer is an academic economist based at the University of the Witwatersrand.

Over the past 30 years, Creamer has published on macroeconomic policy and energy policy, in local and international academic journals and books.

Creamer is a member of South African President Cyril Ramaphosa’s Economic Advisory Council as well as the advisory council of South Africa’s Minister of Trade, Industry and Competition.

In addition to his position at the University of the Witwatersrand, Creamer serves as a Director of Creamer Media, publisher of news and information platforms Engineering News, Mining Weekly and Polity.

On the web:

Guest #4:

Lebogang Mulaisi is the Executive Manager responsible for Policy and Research in the Presidential Climate Commission (PCC). She previously served on the commission as a commissioner representing labour and as Chief Operations Officer in the Secretariat. She was previously the head of policy at the Congress of South African Trade Unions (COSATU), responsible for labour market policy and the just transition. Through engagements with labour unions, she has developed a blueprint for workers on the mechanisms to transition to a low carbon economy through collective bargaining.

Lebogang was an EXCO and MANCO member at the National Economic Development and Labour Council (NEDLAC). Lebogang has co-authored a chapter in Mistra’s book on a low-carbon future for South Africa. The chapter titled: Democratising a just transition in South Africa Identifies the labour movement as a key lever to build social movements around the concept of a radical vision for a just transition.

Lebogang holds a Master’s degree in Development Economics from the University of Johannesburg (2018) and is completing a PhD in Economics. Her area of focus is climate-induced structural change and its impacts on labour productivity.

On the Web: Profile of Lebogang Mulaisi at the National Youth Development Agency

On LinkedIn: https://www.linkedin.com/in/lebogang-mulaisi-a376324

Guest #5:

Dr. Mark Swilling is Distinguished Professor and Co-director of the Centre for Sustainability Transitions at Stellenbosch University. His latest book is The Age of Sustainability: Just Transitions in a Complex World (London and New York: Routledge, 2020). Together with Eve Annecke, he has co-authored, Just Transitions: Explorations of Sustainability in an Unfair World (Tokyo: United Nations University Press, 2012), co-edited with Adriana Allen and Andreas Lampis Untamed Urbanism (New York and London: Routledge, 2016), co-edited with Josephine Musango and Jeremy Wakeford Greening the South African Economy (Cape Town: Juta, 2016) and was the lead author with Ivor Chipkin et. al. of Shadow State: Politics of State Capture (Johannesburg: WITS Press, 2018). He is a member of UNEP’s International Resource Panel where he was the co-lead author of The Weight of Cities: Resource Requirements of Future Urbanization, published in 2018.

Mark was on the Board of the Development Bank of Southern Africa for nine years and until September 2023 where held the position of Chairperson of the Board. The President of South Africa appointed Mark as a member of the National Planning Commission (2022-2027). In 2024. he was appointed to the Board of the National Transmission Company of South Africa. He has been a visiting Professor at the universities of Sheffield and Utrecht, and Georgetown University in Washington D.C, and in 2018 was the Edward P. Bass Visiting Environmental Scholar at Yale University. As of 2023, he published 20 books, 86 book chapters, 66 peer reviewed articles, 56 reports, 143 presentations, 49 major research projects, and supervised 56 Master’s theses and 27 PhDs (six incomplete as of 2023). His private sector roles include Chair of the Board of Ekapa Energy (Pty) Ltd and Chair of the Board of Creation Capital Investments (Pty) Ltd.

On the Web: Mark’s website

Guest #6:

Megan Euston-Brown is the Director and Project Manager of Sustainable Energy Africa (SEA). Megan has worked in sustainable energy development since 2003, managing multi-year urban energy transition and climate response capacity building programs. This has included State of Energy reporting, city energy strategy development and climate action planning, cost of supply, tariffs and distribution sector reform, green building policy development, energy efficiency, energy poverty and just transition tracking. Megan is an experienced development facilitator and has worked extensively with local level energy data collection, policy and institutional development.

On LinkedIn

On X: @SEA_UrbanEnergy

Guest #7:

Dr Wikus Kruger is the Director of the Power Futures Lab at the University of Cape Town’s Graduate School of Business. He is a research lead and lecturer on power sector investment in sub-Saharan Africa. His research focuses on measures to accelerate investment, in particular into renewables, through structured procurement programmes such as auctions. Dr. Wikus Kruger has been working in the African energy sector for 14 years. He holds a PhD from UCT; an MSc from Antwerp University; and MPhil, BPhil and BA degrees from Stellenbosch University.

Geek rating: 7

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[Episode #275] – The Cost of Delay

In mid-2026 we're experiencing the largest energy crisis the world has ever faced. The sudden and prolonged disappearance of one-fifth of the global supply of oil and LNG, set in motion by the Iran war we covered in Episode #272, has sent import costs soaring. World leaders are now confronting the risks of fossil fuel dependence as never before.

The high costs and outright physical shortages of oil and gas are driving inflation across the global economy. But that's not all. The crisis is also weakening currencies in importing economies, deepening their debt, stalling growth, and transferring wealth on an enormous scale. By 350.org's count, more than $150 billion has already moved from ordinary households into the balance sheets of oil and gas companies.

A new report from 350.org, Out of Pocket: How Delaying Global Fossil Fuel Phase Out is Draining Households and Economies, puts hard numbers on the price of delaying the energy transition. In today's conversation, we welcome the lead author, Clémence Dubois, Global Campaign Manager at 350.org, to share its findings. Clémence explains how the delay imposes opportunity costs, economic and environmental justice costs, and national security risks on importing countries. She makes the case for why this crisis, unlike the six previous oil shocks, might be the final nail in the coffin of the world's dependence on imported oil and gas. And we'll see how many countries are already switching to domestic renewables and electrification — because for them, delay is no longer an option.

Guest:

Clémence Dubois is Head of Global Campaigns at 350.org, an international NGO that uses online campaigns, grassroots mobilizations, and mass actions to oppose fossil fuel projects, deprive multinationals contributing to climate change of their financial resources, and mobilize for a just transition. A key figure in civil society for the past ten years, she holds an MSc in International Regulation and Environmental Policy from the London School of Economics and one in Political Sciences from Sciences Po Lille.

On Bluesky: https://bsky.app/profile/350.org

On LinkedIn: https://www.linkedin.com/in/environmentalpolicy/

On the Web:  http://350.org/

Geek rating: 5

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[Episode #274] – Global Electricity Review 2026

For years, transition skeptics have argued that what's really happening globally is "energy addition," where renewables are piling on top of fossil fuels rather than pushing them aside. The data that's just landing from 2025 finally puts that argument to rest.

For the first time, global electricity generation from fossil fuels fell, not because of a pandemic shutdown, recession, or unusual weather, but simply because renewables grew faster than demand. Power-sector emissions dropped along with it, also a first. Solar recorded the largest single-year increase of any electricity source on record, with the exception of coal's rebound as the world re-opened after 2020. And renewable generation surpassed coal in the modern era for the first time.

These are just a few of the important findings in Ember's Global Electricity Review 2026. To unpack what they mean, and what they don't, we welcome back to the program Nicolas Fulghum, Senior Energy and Climate Data Analyst at Ember and one of the report's lead authors. Nic was last on the show in Episode #254 reviewing the 2025 edition of this report, which became our most popular episode of the year, and which we re-released without paywall in Episode #266.

In today's show, we'll see how the structural decline in fossil generation, long-anticipated by transitionistas, finally arrived. We'll hear why solar's growth rate refuses to slow even as the technology matures. And we'll explore how the second fossil fuel shock of the decade, this time from the Iran war we covered in Episode #272, is pushing more countries to accelerate their move off imported fuels. The energy transition isn't coming. It's here, and it's getting more unstoppable every year.

Guest:

Nicolas Fulghum is a Senior Energy and Climate Data Analyst at the global energy think Ember, and one of the lead authors of Ember’s flagship report – the Global Electricity Review.

On Bluesky: @nicolasfulghum.bsky.social

On LinkedIn: https://www.linkedin.com/in/nicolas-fulghum/

On Twitter: @nicolasfulghum

Geek rating: 8

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[Episode #272] – Global Energy Crisis 2026

Full Episode

The attacks on Iran by US and Israel have touched off a regional conflict that has resulted in the closure of the Strait of Hormuz, through which 20% of the world's oil and LNG transits, and is doing severe, ongoing damage to oil and gas infrastructure throughout the Persian Gulf. We are now in a new global energy crisis.

IEA coordinated the largest release ever of oil from strategic reserves to calm the oil market, but traders shrugged it off and oil prices kept climbing, because a physical disruption at this scale is totally unprecedented. Even so, veteran oil traders and journalists have warned that the world is still not recognizing the depth of the actual peril it's in. IEA Executive Director Fatih Birol called this crisis "the greatest global energy security threat in history" and said, "I believe the world has not yet well understood the depth of the energy security challenge we are facing." IEA also admonished governments to take steps to conserve fuel, including urging their citizens to drive more slowly, work from home, take public transport and car sharing, avoid air travel, and switch to electric cooking. The last time IEA called for such wide-ranging demand reduction was in the 1973 Arab Oil Embargo.

The consequences are already cascading well beyond oil: Fertilizer prices have surged 25 to 40 percent, and a similar increase in the price of diesel will flow through to essentially everything, causing "fossilflation." In response, governments across Asia have begun curbing consumption: Bangladesh is shutting universities early to save power, Thailand and Vietnam are pushing civil servants to work from home, and Myanmar has imposed fuel rationing. And that's just the beginning.

To help us understand this rapidly-worsening reality, we are joined by Rory Johnston, one of the most widely cited independent oil market analysts, founder of the Commodity Context newsletter, and host of the Oil Ground Up podcast. Johnston, who typically avoids alarmist price calls, says $200 a barrel minimum is now on the table. We discuss why the world's emergency supply tools aren't working, where oil prices could go from here, and why this crisis has thrown the world into uncharted territory.

It could take the world years to recover from this…but in that interim, it's likely to accelerate the energy transition.

To help everyone cut through the fog of war and disinformation, and understand what is happening and how it will affect them, we are publishing this episode without a paywall. So please share it widely.

Guest:

Rory Johnston is a Toronto-based oil market researcher, the founder of Commodity Context, a lecturer at the University of Toronto’s Munk School of Global Affairs and Public Policy, host of the Oil Ground Up podcast, as well as a Fellow with both the Canadian Global Affairs Institute and the Payne Institute for Public Policy at the Colorado School of Mines.

He is a leading voice on oil market analysis, advising institutional investors, global policy makers, and corporate decision makers. His views are regularly quoted in major international media including the Financial Times, New York Times, Wall Street Journal, Bloomberg News, Reuters, BNN Bloomberg, CBC, and Financial Post, and he frequently appears on numerous market and industry podcasts (e.g., Bloomberg’s Odd Lots, Hidden Forces, etc.).

Prior to founding Commodity Context, Rory led commodity economics research at Scotiabank where he set the bank’s energy and metals price forecasts, advised the bank’s executives and clients, and sat on the bank’s senior credit committee for commodity-exposed sectors.

On the Web:  Commodity Context

Podcast: Oil Ground Up podcast

On Twitter: @Rory_Johnston

On Bluesky: @roryjohnston.bsky.social

On LinkedIn: Rory Johnston

Geek rating: 8

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[Episode #234] – Transition in Australia 2024

In August 2024, Chris commenced a three-month research trip across Australia and New Zealand to explore their unique challenges and opportunities in the energy transition, and to conduct interviews with the people involved. This episode kicks off a miniseries based on those travels.

We start by speaking with Giles Parkinson, a journalist for more than 40 years who has arguably covered Australia’s energy transition more thoroughly and consistently than anyone else. Giles is the founder and editor of Renew Economy and the co-host of the weekly Energy Insiders Podcast as well as the founder of two other websites: One Step Off The Grid, which provides information to consumers contemplating what they can do to support the energy transition, and The Driven, which is billed as “Australia’s most-trusted and well-read electric vehicle news site.”

In this roughly 90-minute conversation, we frame up the big picture on Australia’s energy transition, including the major themes and vectors of change. We discuss several significant energy transition projects as well as the politics of the energy transition in Australia, including the roles of various government agencies.

Guest:

Giles Parkinson is founder and editor of Renew Economy, and is also the founder of One Step Off The Grid and founder/editor of the EV-focused The Driven. He is the co-host of the weekly Energy Insiders Podcast. Giles has been a journalist for more than 40 years and is a former business and deputy editor of the Australian Financial Review.

On Twitter: @GilesParkinson

On LinkedIn: Giles Parkinson

On the Web:  Giles’ page at Renew Economy

Geek rating: 6

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[Episode #231] – Five Times Faster

Why have our climate policies failed to significantly reduce carbon emissions? What new strategies could help us decarbonize the global energy system five times faster — as is needed to avoid the worst climate scenarios?

Our guest in this episode believes he has some answers to these questions.

Simon Sharpe has been personally involved in the crafting of climate policy in the UK for over a decade. He designed and led flagship international campaigns for climate policy in 2020-2021, when the UK hosted COP26, and has held key roles in the UK Government, including as head of a private office to a minister of energy and climate change. His diplomatic experience includes postings in China and India. Currently, he is Director of Economics for the Climate Champions Team and a Senior Fellow at the World Resources Institute. Simon has published influential academic papers and created groundbreaking international initiatives in climate change risk assessment, economics, policy, and diplomacy.

In his 2023 book, Five Times Faster—Rethinking the Science, Economics, and Diplomacy of Climate Change, Simon lays out why the institutions of science, economics, and climate diplomacy that should be helping us are holding us back. Chapter by chapter, he forensically analyzes why so many of our climate policies have failed to produce the desired results, demonstrating how science is pulling its punches, diplomacy is picking the wrong battles, and economics is fighting for the wrong side. More importantly, he outlines how to develop alternative policies that could actually work.

Guest:

Simon Sharpe is Director of Economics for the Climate Champions Team and a Senior Fellow at the World Resources Institute. He designed and led flagship international campaigns of the UK’s Presidency of the UN climate change talks (COP26) in 2020-2021; worked as the head of private office to a minister of energy and climate change in the UK Government; and has served on diplomatic postings in China and India. He has published influential academic papers and created groundbreaking international initiatives in climate change risk assessment, economics, policy and diplomacy.

On the Web: fivetimesfaster.org

Geek rating: 6

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[Episode #218] – Accelerating Decarbonization in the US

How can we accelerate the decarbonization of the entire US economy?

In this episode, we discuss the energy-related decarbonization strategies outlined in a new report from the National Academies, titled “Accelerating Decarbonization in the United States: Technology, Policy, and Societal Dimensions,” with Dr. Sue Tierney, a Senior Advisor at Analysis Group and a renowned expert in energy and environmental economics, regulation, and policy. Dr. Tierney played a key role in the Committee on Accelerating Decarbonization in the United States, which developed and coordinated this landmark study. We explore how decarbonizing the US requires much more than simply substituting renewables for fossil fuels in power generation and EVs for oil-burning cars. A broad array of solutions must be deployed, but they face numerous barriers and risks to implementation.

Trillions of dollars have been allocated for these energy and technology solutions through three significant laws passed in 2022: the Infrastructure Investment and Jobs Act (IIJA), the Inflation Reduction Act (IRA), and the Creating Helpful Incentives to Produce Semiconductors (CHIPS) Act. However, effectively mobilizing these funds requires willing collaboration from a diverse group of local, municipal, and state actors, including elected officials, regulators, agency staffers, as well as community and business leaders.

Listen in to learn why delivering a successful energy transition, along with a host of other benefits such as justice, equity, health, jobs, and sustainability writ large, necessitates understanding the barriers to implementation and identifying the types of policies and programs needed to keep the US on track to achieving net zero.

Guest:

Dr. Sue Tierney is a Senior Advisor at Analysis Group and is an expert on energy and environmental economics, regulation, and policy, particularly in the electric and gas industries.  Previously, she was the Assistant Secretary for Policy at the U.S. Department of Energy, and in Massachusetts, she was the Secretary of Environmental Affairs, Commissioner at the Department of Public Utilities, and head of the state’s Energy Facilities Siting Council. She currently chairs the Board of Resources for the Future and the National Academies’ Board on Energy and Environmental Systems, and serves on the boards of other NGOs and foundations.  She was a member of the National Academies’ Committee on Accelerating Decarbonization in the U.S. and the Committee on the Future of Electric Power. Her Ph.D. is in regional planning from Cornell University

On Twitter: @analysisgroup

On the Web:  Analysis Group

Geek rating: 6

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[Episode #212] – Transition in Eigg

Twenty-six years ago, on a wee island with just 65 residents off the west coast of Scotland, the seeds of a fascinating energy transition project were planted. That began a long process which ultimately made it possible for the island’s inhabitants to become the world’s first community to launch an off-grid electric system powered by wind, water and solar.

In the Autumn of 2023, Chris traveled to that island—the Isle of Eigg—to see it for himself, and interview some of the key people who were involved in making it happen. You’ll learn all about how it happened and what the island’s residents plan to do next in their pursuit of greater self-determination and self-sufficiency.

This is our second show in the new, place-based format we piloted in Episodes #186 and #187. Instead of exploring a particular topic with one guest who has a noncommercial perspective, as most of our shows have done so far, this new format aims to tell the stories about how the energy transition is proceeding in some of the places Chris is visiting in his ongoing travels as a peripatetic podcaster. There will be more episodes in this format to come, and we hope you enjoy them.

Geek rating: 4

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[Episode #211] – Doomers vs. Transitionistas

Full Episode

Should our response to global warming focus on technologies that reduce emissions, or on embracing simpler lifestyles? Why do some believe that deploying more renewables and accelerating the energy transition is essential, while others advocate for ‘degrowth’ instead, and claim that switching to renewables is counterproductive?

Today’s conversation explores a recent paper by lifecycle assessment researcher Marco Raugei of Oxford Brookes University, in which he describes an ongoing debate between “systemic pessimists” who focus on humanity’s demands for resources and dismiss renewable technologies, and “technological optimists” who focus on the technologies of the energy transition but do not address other planetary boundaries. We describe these two tribes and their beliefs, identify their points of disagreement, and try to suggest a way forward.

We’ll also discuss another recent paper Marco co-authored exploring whether there are important material limits to the energy transition. And to wrap it up, Chris offers his longest monologue yet, in which he draws a distinction between “techno-optimists” and energy transition advocates, and suggests some ways that we might advance the debate beyond its current unhelpful framing.

Ultimately, we hope this episode will persuade some “systemic pessimists” to consider shifting their narrative from doom and to refocus on actively solving problems, including the problem of global warming.

Geek rating: 9

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[Episode #209] – End of the Nuclear Age

If we genuinely need nuclear power—be it older conventional designs or new, unproven small modular designs—to make the energy transition a success, then that case has not been demonstrated. Instead, nuclear advocates have primarily used political argument to support continued investment in it. Because if we just went by the industry’s actual track record, and properly internalized its risks and high costs, we’d never build another nuclear power plant again.

Nuclear power never had a proper justification as an electricity generation technology. It is an industry built on a foundation of lies, extravagance, conceit, and failure. It always has been, and continues to be, a fig leaf for the nuclear weapons industry.

The fact is that we do not need nuclear power to make the energy transition a success. Even if we did continue to invest in it and force the public to shoulder its actual risks and excessive costs, doing so could actually hinder the energy transition, not advance it.

Our guest in this episode, Stephanie Cooke, has literally written the book on the untold history of nuclear power. As the former editor of Nuclear Intelligence Weekly and the author of In Mortal Hands: A Cautionary History of the Nuclear Age, she brings over four decades of experience as a professional nuclear industry journalist. She explains why, contra the recent pro-nuclear sentiment captivating climate hawks, the nuclear power industry is not at the dawning of a new age, but rather at the end of its old age.

Geek rating: 5

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