By the end of this decade, solar and batteries could affordably supply 90% of electricity for most of the world’s population at less than €80/MWh—that’s a full system cost, including fuel-based backup, for about US 8.7¢/kWh. While this is already cheaper than building a new gas-fired grid, given that European gas prices spiked to ten times their normal level during the 2022 energy crisis and remain volatile today, the gap is only likely to widen.

But beyond 2030—well within the lifetime of any new power generation system built today—solar and batteries will almost certainly be the cheapest, most reliable, and least volatile way to expand a power grid. Doubling down on fossil gas generation under these conditions, as many governments are contemplating, would be a terrible mistake, both economically and geopolitically.

That is the central finding of a model developed by Tom Brown, professor for Digital Transformation in Energy Systems at the Technical University of Berlin. Tom also led the development of the open-source toolbox Python for Power System Analysis (PyPSA), and based this analysis on a blog post titled “Solar and batteries can power the world.” If you doubt the conclusions, you can run the model and test the assumptions yourself.

In today’s episode, we’ll dig into how the model works, what happens when you add wind to the mix, and why battery costs could halve again by 2050, making solar-dominated grids dramatically cheaper than anything we can build with gas. We’ll also examine the land question and find that powering the world with solar would take just 0.3% of global land, a fraction of what we currently devote to livestock. And we’ll revisit how to meet that last 10% of demand, a topic we last explored in Episode #188 with Paul Denholm of NREL, and hear Tom’s case for methanol as a surprisingly practical backup fuel.

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.

Similarly, recent data shows that China’s coal power output fell by 1% in 2025, even as it built more coal plants than it had in a decade.

These kinds of conundrums are typical for China, with its complex interaction of economic forces and top-down state planning. But once you understand what’s driving them, it all makes sense—just not a Western economic kind of sense.

To help us untangle this picture, we welcome back Lauri Myllyvirta, co-founder and lead analyst at the Centre for Research on Energy and Clean Air (CREA), who last joined us in Episode #138, all the way back in 2021. We were overdue for an update.

In this episode, we dig into this coal conundrum—why China added 78 GW of new coal capacity in 2025, more than India built in an entire decade, even as customers pay $14 billion a year in capacity payments to coal plants that may not even run. We look at the 315 GW of solar and 120 GW of wind China added last year, and how 75 GW of new storage is helping to displace coal power. And we discuss why China’s clean energy investments now make up more than a third of its GDP growth—without them, 2025 growth would have been 3.5% instead of 5%.

Although its fleet of coal power plants continues to grow, there is good news here. Because as the largest energy consumer in the world, China’s declining emissions mean emissions are declining globally.

To help us take stock of the global energy transition in today’s conversation, we are fortunate to be joined by Lord Adair Turner, co-chair of the Energy Transitions Commission (ETC), headquartered in London. The Commission is a global coalition of major power and industrial companies, investors, environmental NGOs, and experts working on achievable pathways to limit global warming while stimulating economic development and social progress. Lord Turner chaired the UK Climate Change Committee from 2008 to 2012, chairs insurance group Chubb Europe, and is a crossbench (non-partisan) member of the House of Lords.

We discuss how the transition is reshaping geopolitics, why the ETC’s forecasts for green hydrogen have been cut roughly in half, and what Europe’s green industrial policy (including its carbon border adjustment mechanism) needs to get right. We explore the roles of China and the UK in mobilizing capital for the developing world, how the UK has achieved a 75% decarbonization of its power sector in just 14 years, and what Turner calls ‘double banking’ — the core challenge of the mid-transition, where we’re paying to build new energy systems while the old ones can’t yet be switched off.

Turner makes the case that well below 2°C is still achievable, but only if we return to the climate imperative alongside the technological opportunity.

The results have been staggering. Over 22 GW of wind and solar projects have been thwarted or thrown into limbo, and fully half of the country’s planned new power capacity, some 117 GW, is at risk of delay. The Department of Energy has issued “emergency” orders to keep six aging coal and gas plants open, invoking a provision of the Federal Power Act originally written for wartime. None of these federal interventions were requested by a utility, grid operator, or state regulator. Courts have been pushing back hard, calling these actions arbitrary, capricious, unreasonable, and seemingly unjustified.

Whether any of these executive actions will survive is the central question. In today’s conversation, we are rejoined by Ari Peskoe, Director of the Electricity Law Initiative at Harvard Law School, to walk through dozens of Trump’s energy interventions and assess which ones are likely to hold up against the growing wave of legal challenges being brought against them. As we discuss, the courts are doing a surprisingly effective job of striking down the administration’s illegal maneuvers. But every project delayed or canceled while the cases grind through court is inflicting real damage on the energy transition.

The energy and climate movement is overwhelmingly popular. Surveys consistently show broad public support for clean energy. Yet energy transition issues rarely crack the top ten concerns of most voters, and we remain remarkably bad at enacting political consequences when decision-makers ignore us. If being right were enough, energy transitionistas would have won by now.

In this episode, Carter Lavin—a climate and transportation activist who has spent 15 years training nonprofits, grassroots groups, businesses, and individuals to win local and state-level campaigns—shares what he’s learned. His new book, If You Want to Win, You’ve Got to Fight – A Guide to Effective Transportation Advocacy, serves as a handbook for anyone who wants to move the needle on policies that support energy transition in their own community.

We discuss how to translate your goals into specific campaigns, how to connect with allies who share your values, and how to apply pressure at the right decision points. Carter explains the “inside-outside game” that bridges the gap between wonks who read 500-page regulatory filings and activists who show up at protests. We explore power mapping, coalition building, and why working on multiple campaigns simultaneously makes your movement stronger.

If you’re ready to move from watching the energy transition unfold to actively shaping it, this conversation will show you how.

But as countries follow different paths through the energy transition, where does that leave Japan? Importing 100% of its oil and gas means it ranks among the world’s most energy-vulnerable nations. After the Fukushima Daiichi nuclear plant disaster in 2011, Japan has lost more than a decade to inaction, stuck between a public that no longer trusts nuclear power and a political establishment reluctant to abandon enormous sunk costs in nuclear capacity. Now Japan has reached a crossroads. It can side with the petrostates, go with the electrostates, or try to straddle the line between them.

To explore Japan’s options, Chris interviewed Nobuo Tanaka, former Executive Director of the International Energy Agency from 2007 to 2011. Tanaka now chairs the steering committee of Japan’s Innovation for Cool Earth Forum and advises Japanese and international companies on energy strategy.

In this conversation, we’ll hear Tanaka’s bold proposal for Japan, Korea, and China to set aside their historical conflicts and form an electrostate alliance, much as France and Germany did after World War II when they created the European Coal and Steel Community. Tanaka also makes the case for a new generation of nuclear technology as Japan’s path forward, a view on which he and Chris differ, though they agree on the stakes. And, based on his long experience in international geopolitical forums, Tanaka explains how US policy is pushing Europe and much of the rest of the world closer to China.

To close out 2025, by popular demand, we’re lifting the paywall on Episode #254, our comprehensive review of the state of the global energy transition with Ember’s Nic Fulghum. This is one of our occasional lagniappe shows—that’s what they call a little something extra in New Orleans, like the 13^th bagel in a baker’s dozen. So, all of our listeners on the free feed can see what you’ve been missing! We hope you’ll share it widely with friends and colleagues because it cuts through the noise with hard data on the state of the global energy transition from one of 2025’s most important reports.

Despite claims from both “fossil gradualists” who would like to see the energy transition fail, and “net-zero puritans” who deny that the energy transition is happening at all because emissions are still rising, the transition is very much under way and gathering momentum. Countries are switching to renewables, electrifying transportation and decarbonizing heating faster than even the most seasoned energy analysts thought was possible, while the fossil fuel holdouts still white-knuckling their strategies are quickly dwindling in number.

Ember, a clean energy think tank, published a report in April 2025 titled Global Electricity Review 2025 that plainly lays out these facts. One of its lead authors, Nic Fulghum, joined us in this conversation to discuss the report’s findings in a conversation absolutely packed with the data you can use to win any debate with a transition denier.

Nic outlines how solar is growing faster than any energy source in human history, electrification of transport and heating are advancing quickly enough to materially slash fossil fuel demand, and power generation from fossil fuels is headed into structural decline. Global power-sector emissions may finally be close to peaking, thanks to the accelerating energy transition.

What he found is that the revived Current Policies Scenario (CPS) shows what could happen if the energy transition is stopped in its tracks and fossil fuel demand continues to grow, as the Trump administration has stated it would like to see. While other scenarios explore continued progress in energy transition consistent with recent reports, where oil demand still peaks around 2030, and coal demand falls before the decade ends.

The report’s updated global data tells another story. The oil industry spends $550 billion annually on upstream development, and 90% of that just keeps production flat. Meanwhile, 45% of new heavy freight trucks sold in China this year run on electricity or LNG, not diesel. And in the Middle East, solar is increasingly displacing oil for electricity generation and desalination of water. In Saudi Arabia alone, this could free up over a million barrels of daily consumption.

In fact, in this year’s report, IEA declares that “the Age of Electricity is here.” For the first time, more than half of all energy sector investment is flowing into electricity. Renewables grow “faster than any other major energy source in all scenarios.”

The picture is clear: the energy transition is still going strong.

South Africa is also blessed with largely untapped wind, water, and solar resources that could meet all of the country’s energy needs several times over. Few countries better exemplify both the challenge and opportunity in the energy transition.

That transition is now under way, both through deliberate official reforms and through an uncontrolled explosion of solar and batteries that customers are installing on their homes and businesses. Over seven gigawatts of behind-the-meter solar and storage now operate in a country whose grid demand rarely exceeds 30 gigawatts, all deployed with zero subsidies.

To explore this story, Chris traveled to South Africa in September 2025 for a six-week research trip. He recorded numerous interviews with people closely involved in the country’s energy transition, which we are featuring in a new miniseries.

We begin with Anton Eberhard, Professor Emeritus at the University of Cape Town’s Graduate School of Business. For more than 35 years, Anton has worked to modernize and liberalize South Africa’s power sector in pursuit of a more equitable, just, and clean energy system. His commitment to justice runs deep: in 1977, he became one of the first white South Africans imprisoned for refusing conscription into the apartheid military. After his release, he pursued a PhD in solar energy around 1980, doing fieldwork in remote Lesotho villages long before renewables were economically viable.

In this conversation, Anton recounts the evolution of South Africa’s power sector alongside his own personal history. He explains why Eskom, once named the best utility in the world, saw its energy availability factor plummet from over 90% to as low as 40% at the height of the country’s power crisis. He describes the political economy keeping coal interests entrenched, his role in the groundbreaking 1998 white paper whose proposed reforms are only now, 27 years later, being implemented, and why structural changes remain critical for accelerating the energy transition. This will give you the essential context for the rest of our South Africa miniseries, and contains many universal insights that may be useful to understanding the energy transition wherever you live.