38. Methane crisis unveiled… and how to fix it (2/2)

Redefining Energy - TECH

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추가했습니다 forty-four 주 전

Laurent Segalen + Gerard Reid and Michael Barnard에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Laurent Segalen + Gerard Reid and Michael Barnard 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

<div class="span index">1</div> <span><a class="" data-remote="true" data-type="html" href="/series/world-of-secrets">World of Secrets</a></span>

1
World of Secrets

구독 취소

9일 전9d ago

구독 취소

매달+

Global investigations from the BBC. Uncovering stories around the world and telling them, episode by episode, with gripping storytelling. Delve into a World of Secrets. Latest season: The Killing Call. The murder of Indian music star Sidhu Moose Wala sent shock waves around the world. He was one of India’s biggest stars - a rebel who refused to be silenced. Sidhu Moose Wala was gunned down in rural Punjab, at the height of his success. Who wanted him killed? This is the hunt for answers in a murder that won’t be forgotten. A two-year-long investigation that exposes a tangled web of fame, power and vengeance and uncovers a criminal underworld that reaches far beyond India's borders. Also, previously on World of Secrets: Al Fayed: Predator at Harrods. Women accuse Mohamed Al Fayed of rape. And: The Abercrombie Guys. Investigating sexual exploitation claims against the former CEO of fashion giant Abercrombie & Fitch.

약 1년 전 52:57

MP3•에피소드 홈

In Episode 38 of Redefining Energy - Tech, Rob Jackson addresses the growing challenge of methane emissions, which are over 90 times more potent than CO2 in the short term. He reveals that two-thirds of methane emissions come from human activities such as fossil fuels, agriculture, and landfills, with livestock, especially cows, being the largest agricultural source. Methane's rapid increase is a major contributor to climate change, and Jackson explores its direct and indirect effects, including its interaction with ozone and how blending hydrogen with natural gas can extend methane's atmospheric lifetime.
Jackson presents several solutions to reduce methane emissions, emphasizing the transition from gas to electric appliances like heat pumps and induction stoves. Regulatory changes and best practices in the oil and gas sector, such as improved methane capture during drilling and better pressure relief systems, are crucial. He also notes the European Union's plan to include methane in its emissions trading system by 2026.
The episode concludes with strategies for agriculture and landfills, including reducing cow populations, using feed additives and vaccines to cut methane from livestock, and preventing organic waste from entering landfills. Jackson advocates for a holistic approach, linking methane reduction to broader climate and health benefits, and highlights clean energy as a critical part of the solution.

54 에피소드

#Tech #Laurent Segalen + Gerard Reid #Michael Barnard

38. Methane crisis unveiled… and how to fix it (2/2)

Redefining Energy - TECH

published 약 1년 전

MP3•에피소드 홈

54 에피소드

#Tech #Laurent Segalen + Gerard Reid #Michael Barnard

Усі епізоди

Redefining Energy - TECH

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53. Decarbonizing the High Seas - IMO’s Billion-Dollar Bet (1/2) 45:03

24 hours 전45:03

나중에 재생

리스트

45:03

In Episode 53 of Redefining Energy TECH , Host Michael Barnard speaks with Tristan Smith, a prominent expert in maritime decarbonization and professor at the University College London Energy Institute. Tristan shares his insights, beginning with an overview of maritime shipping, which accounts for approximately 1 gigaton of CO₂ equivalent annually, making it responsible for about 2-3% of global emissions. Crucially, the regulatory oversight for these emissions sits largely with the International Maritime Organization (IMO) due to the nature of international shipping occurring beyond national jurisdictions. Our conversation moves through the historical context of the IMO, tracing its evolution from a safety standards body established post-Titanic disaster to an organization now deeply involved in global climate policy. Historically, the IMO faced significant challenges in progressing climate regulations due to entrenched disagreements between developed and developing countries around responsibilities. The Paris Agreement in 2015, alongside persistent advocacy from smaller nations like the Marshall Islands, notably shifted this dynamic, leading to the adoption of the IMO’s initial climate strategy in 2018. We delve into recent regulatory developments, including the unprecedented IMO vote initiated by Saudi Arabia, resulting in a decisive 63-to-16 vote (with around 29 abstentions) mandating progressive reductions in greenhouse gas intensity for ships over the next 25 years. The regulation sets clear fines for non-compliance—$380 per ton for exceeding the highest threshold and $100 per ton for mid-level breaches—ultimately requiring ships to achieve a 65% reduction in emissions intensity by 2040. The discussion highlights the role of Emissions Control Areas (ECAs), established initially to curb SOx and NOx emissions in sensitive regions like the Baltic Sea, North Sea, and North America, effectively serving as early tests for broader international regulations. Additionally, we critically examine LNG’s journey from a touted solution for reducing SOx and NOx emissions to its complicated position as a potential climate liability due to significant methane emissions both onboard and upstream. Norway’s influential promotion of LNG and subsequent studies, such as those by the International Council on Clean Transportation, underline these complexities. Finally, Tristan emphasizes the future challenges facing maritime decarbonization, notably the risk of technological lock-in with LNG and the powerful role of the oil and gas industry within the maritime sector. We also explore the shifting political landscape as global fossil fuel transportation—currently 40% of maritime tonnage along with another declining 15% for raw iron ore—faces inevitable structural declines, promising profound implications for industry dynamics and global decarbonization efforts.…

Redefining Energy - TECH

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52. The Hydrogen Titanic (2/2) 37:59

22일 전37:59

나중에 재생

리스트

37:59

In this episode of Redefining Energy Tech , host Michael Barnard concludes his conversation (See Ep51 for part 1/2) with Dr. Joseph Romm about the uncomfortable truths behind hydrogen's persistent hype. Romm—physicist, climate policy expert, and author of The Hype About Hydrogen —lays out a detailed indictment of hydrogen’s role in the energy transition and the vested interests keeping it afloat. As the 20th anniversary edition of his book hits shelves this Earth Day, he’s doubling down on his central message: hydrogen is the wrong answer to the right problem. We begin by unpacking why oil and gas companies are so enamored with hydrogen. It’s not about climate—it’s about preserving infrastructure and revenue streams. These companies already produce and move hydrogen, mostly for refining heavy, dirty oil. Green hydrogen, despite its green sheen, still fits their business model. But Romm doesn’t buy it. He notes that the economics don’t work. Carbon capture projects like Sleipner and Norway’s Northern Lights are prohibitively expensive and under-deliver. And if we actually tried to build out a CO₂ pipeline network big enough to matter? We’d need something as vast and capital-intensive as the entire global oil distribution system—for just a slice of the emissions problem. Romm argues hydrogen may have a future in niche industrial applications, but as a general-purpose energy carrier, it's fatally flawed. It leaks, it’s explosive, and it’s staggeringly inefficient. Producing green hydrogen wastes half the renewable electricity, liquefying it wastes another 40%, and every transfer step leaks at least 1%. The total system leakage can reach 10%, and that’s not just waste—it’s warming. While hydrogen isn’t a greenhouse gas itself, it prolongs methane’s atmospheric lifespan. Its 20-year global warming potential? Around 35—an eye-opener for anyone counting climate impact in decades, not centuries. The safety issues alone should give pause. Hydrogen ignites invisibly, has an explosive range far wider than natural gas, and can’t be odorized for fuel cells. Industrial users need massive safety zones, spark-proof gear, and constant ventilation. That’s not something we want coursing through urban refuelling infrastructure. Romm also skewers the geopolitical assumptions baked into Europe’s hydrogen plans—especially proposals to convert African renewables into hydrogen for export. He calls it what it is: 21st-century energy colonialism. Far better, he says, for Africa to use that clean energy locally to power homes, industry, and prosperity directly through electrification. Ultimately, Romm is clear: if the world is serious about climate, it needs to stop chasing the hydrogen mirage. We should electrify as much as we can, as fast as we can. The rest is delay, marketing spin, and stranded asset risk. His updated book, The Hype About Hydrogen , is available on Amazon this Earth Day—April 22. If you're still clinging to the idea that hydrogen will save the energy transition, this conversation might just change your mind.…

Redefining Energy - TECH

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51. The Hydrogen Titanic (1/2) 36:47

5 weeks 전36:47

나중에 재생

리스트

36:47

In this episode of Redefining Energy Tech , host Michael Barnard sat down with Dr. Joseph Romm—physicist, energy policy veteran, and author of The Hype About Hydrogen —to pull back the curtain on hydrogen’s persistent mystique. Romm isn’t new to the debate. Back in the early 2000s, he was among the first to publicly challenge the logic of hydrogen as a viable energy carrier. Now, twenty years later, he’s back with a completely rewritten edition of his book, just in time for Earth Day, and the message hasn’t changed: the hydrogen hype is still hype. What makes Romm’s critique so compelling is his history. He once supported hydrogen research while in the Clinton-era Department of Energy, betting on Sandia Labs’ onboard gasoline reformers. But that hope dissolved under the weight of technical reality. In 2003, as the Bush administration rolled out its $1.3 billion hydrogen initiative, Romm published the first edition of The Hype About Hydrogen , drawing a stark contrast between hydrogen’s theoretical promise and its practical inefficiency. The fundamental math hasn’t budged. Hydrogen production, storage, transport, and conversion wastes up to 80% of the original renewable electricity. Batteries? They waste closer to 20%. Fast forward to today, and hydrogen is once again being paraded as a climate solution, this time with a new coat of green paint. But Romm’s updated research shows the same miscalculations baked into the models of the IEA, CSIRO, and even PIK—institutions that projected green hydrogen prices based on wildly optimistic learning curves. Hydrogen didn’t follow the same cost trajectory as solar or batteries. In fact, between 2020 and 2024, the cost of electrolyzers increased by 40%—a staggering reversal of expectations that should have set off alarm bells across boardrooms and ministries. We also tackled the real-world energy transition playing out in China. While Western nations argue over tariffs and watch supply chains buckle, China is installing 350 gigawatts of solar and wind in a single year—ten times its nuclear additions—and prioritizing direct electrification over hydrogen. It’s not just policy rhetoric; it’s industrial reality. This divergence is becoming painfully clear in the transport sector. European advisors have publicly declared hydrogen “dead for trucks,” pointing instead to the obvious solution: battery-electric vehicles and megawatt-scale charging infrastructure. The market is responding. Companies trying to straddle both hydrogen and battery bets—Van Hool, Quantron, Nikola—are struggling or collapsing. Romm calls this “narrative disarticulation”—an elegant way of saying that serious people are quietly walking away from the hydrogen dream. His final warning is unequivocal: investing in hydrogen based on outdated assumptions is a recipe for stranded assets and political distraction. Industry’s call to support “dirty hydrogen now, clean later” isn’t just a bait-and-switch—it’s a carbon trap dressed up in green branding. If we’re serious about climate, it’s time to let go of the hydrogen mirage and double down on what we know works: clean, efficient electrification. Want to rethink your assumptions on hydrogen? This is the episode to listen to.…

Redefining Energy - TECH

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50. Geothermal: Drilling for Decarbonization (2/2) 55:55

8 weeks 전55:55

나중에 재생

리스트

55:55

Simon Todd is back with Michael Barnard for part 2/2, and this time he’s drilling deeper—both literally and figuratively. In this second round, the Managing Director of Causeway Energies walks us through the hard tech and hard truths of geothermal energy, especially as it applies to the UK and Ireland. What emerges is a grounded, brutally realistic look at where geothermal works, where it doesn’t, and how to separate serious solutions from science fiction. We kick off with the cross-pollination of oil and gas tech into geothermal—rotary PDC bits, custom drilling muds, and all the bruised geology that comes with punching into granite. The oil patch may be sunsetting, but its tools are still getting a second act. Todd highlights how firms like Fervo are making surgical improvements to geothermal drilling by leveraging fracking's dirty tricks for clean heat, aiming to stimulate natural fractures in hot granite. It's technically elegant, but there’s a catch: the economics are still brutal. EGS systems might sound great on paper, but $150–$250 per megawatt-hour isn’t going to win against wind or solar anytime soon. Todd doesn’t sugarcoat it. The question isn’t if Fervo’s system works —it’s whether it can keep working at nameplate for 25 years straight. He then turns to the UK and Ireland's own geothermal potential. Unlike the flashy volcanic zones of the western U.S. or Iceland, we’re working with Hot Sedimentary Aquifers and radiogenic granites. The geology is less forgiving, but far from useless. Causeway’s bet is on moderate-depth wells—500 to 1,500 meters—which fall into what Todd calls the "Goldilocks zone": hot enough to matter, shallow enough to stay affordable. And this is where Todd really breaks from the crowd . Forget chasing deep geothermal megaprojects with 5 km drill strings and power plant dreams. Causeway Energies has pivoted to something far more practical: industrial heat. About half of emissions are tied to heating, most of it well below 100°C. Modern high-temperature heat pumps—some hitting 150°C—make pairing geothermal with industrial facilities like breweries and hospitals an obvious win. The kicker? These systems offer round-trip efficiencies that embarrass hydrogen and electrify sectors gas can’t reach. One technology worth highlighting here is the Standing Column Well—basically a turbocharged hybrid of open and closed-loop systems that’s 3 to 5 times more thermally potent than your average ground loop. It thrives in fractured aquifers that aren’t fit for drinking water, dodging some of the regulatory red tape. And with a century’s worth of oil and gas borehole data lying around, Causeway has a treasure map to the best locations. Simon Todd isn't pitching geothermal as a silver bullet. He’s carving out a niche: targeted, replicable, cost-effective solutions for decarbonizing industrial heat. It’s not glamorous. It’s not headline-grabbing. But it works . And in the climate transition, that might just be the most disruptive idea of all. Follow the podcast to hear more from the people actually building the energy future, not just imagining it…

Redefining Energy - TECH

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49. Geothermal: Drilling for Decarbonization (1/2) 47:18

10 weeks 전47:18

나중에 재생

리스트

47:18

In this eye-opening episode (part 1/2), Host Michael Barnard invites Simon Todd , Managing Director of Causeway Energies and a man whose geological expertise spans from the chalk beds of Northern Ireland to the drilling decks of BP. Simon joins the podcast to drag geothermal energy out of its misunderstood niche and into the spotlight it deserves. Simon, who spent 25 years at BP before pivoting hard into the future, lays out a vision for geothermal that’s far more than volcanic spas and Icelandic outliers. He starts by grounding us (literally) in the Earth’s temperature dynamics: from a molten 6,000°C core to the relatively tame gradients of continental crust. We learn that geothermal isn’t just a matter of poking around tectonic hotspots. With modern drilling and clever thermal engineering, you can tap heat just about anywhere—even in the soggy, non-volcanic soils of the UK and Ireland. He gets into the mechanics too, explaining how ground source heat pumps use the shallow earth—those top 10–15 meters that swing with the seasons—to store and retrieve heat. He unpacks the performance metric du jour, the Coefficient of Performance (COP), and shows how deeper wells (500 to 700 meters) vastly outperform air-source systems. The returns? In some projects, a sub-3-year payback. That’s not a climate virtue signal—that’s a boardroom greenlight. But Simon doesn't stop at closed-loop systems. He dives into the real geothermal opportunity hiding beneath our feet: open-loop aquifer systems. These draw warm water from permeable rock formations—‘rock sponges,’ as he puts it—offering faster heat transfer than passive conduction. And yet, while ATES systems thrive across the Netherlands and Belgium, they’re barely used in the UK or Ireland. Why? Bureaucratic inertia, unfamiliarity, and maybe just a lack of storytelling. With directional drilling tech now able to reach aquifers from a single pad, and real-time data steering drill heads with pinpoint accuracy, Simon argues we have the tools and the data. What’s missing is awareness—and maybe a bit of ambition. This episode is a geothermal masterclass from someone who’s lived both the legacy fossil past and the clean energy future. If you're still thinking geothermal is just for hot springs and sci-fi, Simon Todd is here to prove otherwise—with numbers, with tech, and with real-world results. Follow the show for more episodes like this one, where energy myths get debunked, and the future gets explained.…

Redefining Energy - TECH

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48. Grid Reliability in a Renewable World (2/2) 39:03

12 weeks 전39:03

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리스트

39:03

In this second part of the conversation, Mark O'Malley returns to discuss with co-host Michael Barnard grid reliability and the evolving challenges of integrating renewable energy. The conversation examines successful examples from Germany, Denmark, and Ireland, highlighting Ireland's unique position as a synchronous island. Texas also emerges as a case study, demonstrating how increased wind and solar capacity has contributed to improved grid stability. While these examples show progress, the discussion underscores the importance of balancing reliability standards with cost-effectiveness and exploring solutions such as flexible supply chains and industrial demand response to manage renewable intermittency. The episode delves into the state of research on power system transformation. While planning methodologies for renewables are well understood, gaps remain in implementation and data availability. Inverter-based resources (IBRs) are making strides, but their seamless integration into the grid remains a work in progress. High Voltage Direct Current (HVDC) technology has proven effective, but its interaction with AC systems requires further study. The need for improved models is evident, as utilities and grid operators require greater confidence before deploying new technologies. However, commercial realities often hinder investment in specialized power system analysis tools, further complicating the transition. A key topic is the Global Power System Transformation Consortium (GPST), which is working toward becoming a legal entity capable of managing resources and funding. The initiative aims to support system operators worldwide in implementing cutting-edge research and solutions, requiring significant financial backing. Estimates suggest that $2 billion will be needed for global implementation, with an additional $500 million required for research and demonstrations. Despite these financial hurdles, progress is being made, as developers and original equipment manufacturers (OEMs) recognize the economic benefits of supporting GPST. Beyond funding, the industry faces another pressing challenge—an acute shortage of highly skilled power system professionals. While the demand for expertise is growing exponentially, talent production is increasing at a much slower pace. Bridging this gap will require targeted strategies to develop a new generation of engineers and researchers, ensuring that the power sector can keep up with the accelerating energy transition. Action items from this episode include reaching out to Mark O'Malley to explore GPST funding opportunities and developing strategies to scale up the production of skilled professionals in the power sector.…

Redefining Energy - TECH

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47. Grid Reliability in a Renewable World (1/2) 42:47

14 weeks 전42:47

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리스트

42:47

The transformation of global power systems is accelerating as wind and solar become dominant energy sources. In the latest episode of Redefining Energy Tech , Mark O'Malley, Leverhulme Professor of Power Systems at Imperial College London, offers a deep dive into the challenges and opportunities of this transition in an in-depth conversation with host Michael Barnard. O'Malley brings decades of expertise in energy system integration, drawing from his work at McGill University, NREL, and the Energy Systems Integration Group. The conversation highlights a pivotal 2018-2019 workshop on achieving high renewable penetration, setting the stage for discussions on the shift from traditional synchronous generators to inverter-based resources. The move to an inverter-driven grid presents new technical hurdles, particularly in balancing supply and demand while maintaining stability. O'Malley outlines six critical research areas shaping the future of power systems: inverter technologies, distributed energy resources, planning and adequacy, control room modernization, stability detection tools, and system services. One of the most pressing challenges is optimizing the balance between grid-following and grid-forming inverters. While grid-following inverters currently dominate, grid-forming inverters hold the potential to establish voltage and frequency independently. The complexity of integrating diverse inverter designs across different manufacturers adds another layer of difficulty. Beyond technical challenges, the discussion extends to global power system dynamics, with a focus on China’s contrasting regional power structures. The integration of AC and DC transmission, particularly in connecting renewable-rich regions to demand centers, underscores the necessity for international collaboration in solving system-wide challenges. Key action items emerging from the discussion include updating the research agenda for power system transformation and refining the balance between inverter types in various grid configurations. As power systems evolve, the industry must prioritize research, coordination, and investment to ensure stability and reliability in a renewable-driven future. Listen to the full conversation on Redefining Energy Tech for an in-depth exploration of these critical issues shaping the next era of energy systems.…

Redefining Energy - TECH

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46. China’s Balancing Act: Coal, Renewables and Nuclear (2/2) 49:45

17 weeks 전49:45

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리스트

49:45

In Episode 46 of *Redefining Energy - Tech*, host Michael Barnard concludes his talk with David Fishman. David examines China's dynamic energy landscape, emphasizing the rapid development of wind, solar, and energy storage technologies. The episode begins with a comprehensive analysis of wind energy, highlighting significant growth in onshore wind despite grid curtailment challenges in western regions. Offshore wind, while slower to develop, is gaining traction with ambitious plans for 15-30 GW per coastal province. Meanwhile, distributed wind energy is emerging as a key focus under innovative policies like the "10,000 Villages Harness the Wind" initiative. The conversation moves to solar energy, where Fishman explores the dual success of utility-scale megabase projects in deserts and the booming distributed solar sector. Public-private collaborations, such as the Whole County Rooftop Solar Promotion Program, have driven rooftop solar installations to tens of gigawatts in China's eastern provinces, accounting for half of the solar market. Fishman then delves into energy storage, contrasting the long-standing dominance of pumped hydropower with the meteoric rise of lithium-ion battery installations, which now outpace hydro in capacity. Battery storage serves critical roles in energy arbitrage, grid stability, and regulatory compliance, driven by mandates for renewables projects to integrate storage solutions. Independent operators are also investing heavily in battery facilities near renewable energy sites. The episode concludes with a discussion of technological advancements, including the decreasing costs of lithium iron phosphate (LFP) battery storage, averaging $66 per kWh in recent auctions. Fishman reflects on potential resource constraints and philosophical questions surrounding China's motivations for clean tech innovation, challenging listeners to consider whether noble intentions are essential if the results drive meaningful progress. This episode provides a nuanced exploration of the strategies and challenges defining China’s energy future.…

Redefining Energy - TECH

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45. China’s Balancing Act: Coal, Renewables and Nuclear (1/2) 53:10

19 weeks 전53:10

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리스트

53:10

In Episode 45 of the *Redefining Energy TECH* series, host Michael Barnard invites David Fishman, a senior manager at Lantau Group. David delves into the intricacies of China's energy landscape, highlighting the country's efforts to balance growth and decarbonization. Despite coal's continued dominance, constituting 55-60% of the energy mix, Fishman discusses measures aimed at limiting its growth. While projections suggest a slight increase in coal consumption due to weaker hydropower performance, China is making strides to shut down smaller, less efficient coal plants. Efforts to grow electricity consumption without proportionally increasing coal usage remain a priority, with current coal plant utilization rates around 48-49%. Natural gas plays a minor role in China’s power generation, primarily confined to coastal regions where LNG imports supplement energy needs. LNG is an emerging trend in transportation, with 8% of heavy long-distance trucks now powered by LNG, offering an alternative to diesel. The rise of electric vehicles is also noteworthy, as Tesla sales in China grew by 8.8%, bucking the trend of global sales declines. China’s nuclear sector, once envisioned as a central pillar of its energy strategy, has faced delays but is now regaining momentum. The development of domestic nuclear technology, particularly the Hualong 1 reactor, has enabled the approval of ten new reactors annually since 2022. Although nuclear energy’s role has shifted from a backbone solution to a niche yet critical component, Fishman underscores its potential importance in achieving the final stages of grid decarbonization. The episode also explores China’s robust progress in renewable energy. Wind and solar power, which began scaling up in the late 2000s, are now adding an impressive 300 gigawatts annually, consistently exceeding targets. While nuclear remains behind on its ambitious goals, renewables continue to lead the charge in transforming China’s energy system. Fishman reflects on the unique scalability of China’s nuclear program, noting the challenges other countries may face in replicating its rapid progress. With renewables, nuclear, and a shifting transportation landscape, China’s energy future presents both challenges and opportunities for decarbonization.…

Redefining Energy - TECH

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44. Critical Minerals: the new Gold Rush (2/2) 48:17

21 weeks 전48:17

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리스트

48:17

In this second part, Gavin Mudd, director of the Critical Minerals Intelligence Center at the British Geological Survey, shares insights into the pivotal role of minerals in the energy transition. While Australia boasts abundant resources, Mudd highlights significant gaps in expertise and labor to extract these materials efficiently. He underscores the urgency of restructuring the iron ore sector to enable green steel production, pointing out that Australia exports four times more energy through coal and natural gas than it consumes domestically. Although lithium mining has surged from $50 million to billions in exports over a decade, Mudd notes it is unlikely to rival coal and LNG in economic impact. The discussion also tackles the challenges of recycling critical minerals, especially lithium batteries. Unlike lead-acid batteries, which benefit from established regulations and high recycling rates, lithium batteries pose difficulties due to evolving chemistries. Mudd calls for improved regulations, better product design, and increased consumer education to address these recycling hurdles. He also raises concerns about dwindling supplies of antimony and its dissipative use, highlighting the broader need for sustainable management of critical minerals. A crucial distinction between mineral resources and reserves forms another part of the conversation. While resources represent known quantities of materials, reserves refer to what is currently profitable to extract—a difference often misunderstood. Mudd emphasizes the importance of robust data collection and analysis, noting that many critical minerals lack reserve estimates due to their byproduct status. Despite these challenges, Mudd remains optimistic. He dispels fears of resource shortages, highlighting increasing global availability of critical minerals and the potential of recycling to reduce environmental impact. By advocating for innovative approaches like reprocessing mine tailings and improving supply chain data, he envisions a future where technological ingenuity overcomes current barriers to sustainability. This episode calls for bold action, from restructuring Australia’s iron ore sector to enhancing data strategies for byproduct minerals, offering a roadmap for advancing the energy transition sustainably and effectively.…

Redefining Energy - TECH

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43. Critical Minerals: the new Gold Rush (1/2) 47:43

23 weeks 전47:43

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리스트

47:43

In the latest episode of *Redefining Energy Tech*, host Michael Barnard is joined by Gavin Mudd, director of the Critical Minerals Intelligence Center at the British Geological Survey, for an insightful discussion on critical minerals, their supply risks, and the environmental challenges posed by mining practices. Mudd, an environmental engineer with extensive expertise in assessing the ecological impacts of the mining sector, shares his perspective on the growing demand for critical minerals such as lithium, cobalt, and rare earth elements, emphasizing their importance in the transition to renewable energy technologies. The conversation delves into the global supply risks associated with critical minerals, highlighting factors such as production concentration, trade dependencies, recycling, and the economic and national security implications of shortages. Lithium and cobalt emerge as key materials for battery technologies, with a noted shift toward lithium iron phosphate batteries in China. Mudd also discusses the substitutability of certain materials, such as aluminum replacing copper in wiring, as a potential mitigation strategy. The episode sheds light on rare earth elements, which, despite being found globally, are overwhelmingly processed and refined in China. This dominance raises environmental concerns, particularly regarding radioactive residues like thorium and uranium associated with rare earth minerals. Mudd notes that while China is improving its environmental management practices, the rest of the world must also address these challenges by developing better systems for managing radioactive waste. A key theme is the expertise gap between China and Western countries in mining and processing. Mudd highlights the decline in mining and geology programs in Western universities, driven by negative perceptions of the industry. This expertise gap exacerbates the challenges of securing sustainable mineral supplies and addressing environmental impacts. The conversation emphasizes the urgent need to attract new talent to the sector, improve the industry's image, and address the critical shortage of geologists and mining engineers. The discussion concludes with a forward-looking proposal for a Global Mining Legacy Fund, aimed at addressing environmental damage from legacy mines. Mudd calls for greater government intervention to secure critical mineral supplies and balance the benefits of globalization with the risks to supply chains. Actionable recommendations include researching better management practices for radioactive residues, enhancing the perception of the mining industry to attract students, and implementing initiatives like the Global Mining Legacy Fund as outlined in the UN Secretary General's report.…

Redefining Energy - TECH

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42. The HVDC Grid Revolution (2/2) 52:47

26 weeks 전52:47

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52:47

Michael Barnard concludes his conversation with John Fitzgerald, CEO of Supernode. They explore the game-changing potential of superconducting transmission technology. Superconductors, capable of carrying electricity with zero resistance at extremely low temperatures, are already used in applications like MRI machines and are now poised to revolutionize urban power distribution. Fitzgerald highlights advances in cryogenic systems, such as smooth bore cryostats, which allow cables to run three times longer between cooling stations, reducing infrastructure needs and enhancing efficiency. The episode spotlights projects like Munich’s upcoming 12-15 km superconducting power cable, which will transfer more power using less space, offering a cost-competitive solution for urban energy demands. Fitzgerald also underscores the importance of developing a European super grid and anticipatory investments in high-capacity power corridors to address growing renewable energy integration and reduce curtailment. He contrasts Europe’s efforts with rapid grid advancements in India and China, emphasizing the need for proactive planning and investment. Looking ahead, Supernode aims to commercialize its technology by the end of the decade. Fitzgerald calls on policymakers, utilities, and system operators to bridge gaps in energy infrastructure, establish partnerships, and secure funding to promote innovative transmission solutions for a sustainable future.…

Redefining Energy - TECH

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41. The HVDC Grid Revolution (1/2) 44:24

28 weeks 전44:24

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리스트

44:24

Michael Barnard invites John Fitzgerald, the CEO of Supernode. John delves into the transformative potential of energy transmission technologies and the critical role of interconnectors in shaping the future of renewable energy. Drawing from his extensive background in engineering and utility management, Fitzgerald recounts his journey in the energy sector, which includes developing power stations, trading over interconnectors, and spearheading the East West Interconnector project between Ireland and the UK. His leadership at Supernode reflects his commitment to advancing superconducting transmission technology as a solution to modern energy challenges. Fitzgerald discusses the inherent limitations of alternating current (AC) transmission, particularly for underground and underwater cables, and highlights the advantages of direct current (DC) technology for long-distance energy distribution. He explains the technical intricacies of DC systems, including their capacity to manage inertia and integrate non-synchronous renewable energy. Throughout the episode, Fitzgerald emphasizes the need to address public consultation challenges in infrastructure projects to ensure the successful deployment of energy transmission networks. A central theme of the conversation is the evolving role of interconnectors. Once primarily used to exploit price differences between energy markets, interconnectors are now crucial for balancing variable renewable energy across regions. Fitzgerald explores the immense potential of continental-scale grids in Europe and advocates for tripling grid capacity to meet future energy demands. He also highlights groundbreaking projects like Sun Cable, which aims to connect Australia to Singapore, and the NATO-L project, which envisions transatlantic power transmission, underscoring the benefits of intercontinental energy connectivity for enhancing energy security. The episode concludes with a forward-looking perspective on the energy transition. Fitzgerald calls for greater investment in HVDC technology, praises China's advancements in this area, and urges listeners to stay informed about opportunities to integrate renewables through interconnectors. By fostering interconnected grids, he argues, the global energy landscape can achieve greater efficiency, resilience, and sustainability.…

Redefining Energy - TECH

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40: Buses - Hydrogen vs Batteries (2/2) 53:38

30 weeks 전53:38

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53:38

In this second part of the episode, Michael Raynor and Michael Barnard offer an in-depth analysis of the comparison between hydrogen fuel cell and battery electric buses, focusing on key findings and discrepancies in a recent CUTRIC study. Barnard critically examines issues related to replacement cycles, carbon pricing, refuelling facilities and individual bus complexity. He highlights the study’s failure to account for technological advancements in batteries, such as decreasing costs and improving lifespans, which position battery electric buses as a more sustainable and cost-effective solution. Raynor digs into financial projections and the challenges of managing multiple bus technologies in transit systems like Brampton’s. He applies his expertise related to scenario-based planning, gained in his Harvard DBA and published in his 2007 book, The Strategy Paradox, pointing out flaws in CUTRIC’s use of point estimates without error bars. Raynor notes the complexity involved in maintaining hydrogen buses, both in terms of infrastructure and organizational demands, compared to simpler battery systems. He raises concerns about Brampton’s decision to move forward with a potentially expensive and inefficient hydrogen pilot, citing a $1.1 billion discrepancy caused by timing assumptions in hydrogen bus deployment. Raynor also explores how the study’s reliance on discounting future costs skews financial comparisons between the two technologies. He discusses the need for carbon emissions to be integrated into transit planning decisions and contrasts CUTRIC’s analysis with the EU’s more sophisticated approach to carbon pricing. The episode concludes with Raynor’s personal reflection on the difficulties of tackling climate challenges while underscoring the importance of rigorous evaluation processes in transit planning. Raynor and Barnard call for Brampton’s transit proposals to undergo third-party reviews and improved quality control to ensure transparency and better decision-making.…

Redefining Energy - TECH

1
39: Buses - Hydrogen vs Batteries (1/2) 44:55

32 weeks 전44:55

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44:55

In this episode, host Michael Barnard engages in an enlightening conversation with Michael Raynor, co-author of The Innovator’s Solution and an expert in carbon reduction strategies. Raynor shares his personal journey into sustainability, the evolution of his focus on decarbonization, and his current work developing innovative solutions for addressing corporate carbon challenges. A key topic in the discussion is the Raynor’s new firm, S3 Markets, which emphasizes the need to decarbonize upstream commodities to meet net zero commitments. Rayner highlights the difficulty corporations face in managing Scope 3 emissions and suggests shifting from traditional carbon offsets to “insets,” where companies pool small investments to make a meaningful impact. This approach targets the 80-90 high-emission commodities responsible for the bulk of industrial emissions, which make up 15% of global GDP. The conversation takes a practical turn as Raynor discusses Mississauga’s hydrogen bus pilot program. He recounts how he identified potential issues with the initiative and reached out directly to the city’s mayor and council. His insights led to an invitation to present his findings to the Mississauga City Council on October 30th. The conversation turns to Barnard’s dive into the CUTRIC (Canadian Urban Transit Research and Innovation Consortium) in advancing urban transit decarbonization through research and policy recommendations, as well as some red flags. Barnard and Raynor explore the financial and environmental trade-offs between hydrogen and battery-electric buses. Barnard provides a critical analysis of data from California and the EU’s JIVE program, showing that hydrogen buses come with significant costs for refuelling infrastructure and maintenance. Comparatively, for the cost of five hydrogen buses, municipalities could procure twelve battery-electric buses, making the latter more attractive both financially and environmentally. The episode wraps up with a closer look at CUTRIC’s recent report for Brampton, where Barnard identifies questionable assumptions about hydrogen system costs. One factor alone, the cost assumption for gray hydrogen could have a $200 million swing, dwarfing the $10 million variance called out justifying a blended hydrogen + battery electric fleet instead of a battery electric only fleet. Raynor examines the varying carbon costs of different hydrogen types—gray, blue, and green—and emphasizes the importance of carefully choosing technologies based on actual benefits. The battery-electric buses offer superior emissions reduction per dollar spent.…

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