Decouple

Dr. Chris Keefer
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There are technologies that decouple human well-being from its ecological impacts. There are politics that enable these technologies. Join me as I interview world experts to uncover hope in this time of planetary crisis.

  1. Nuclear Reprocessing: Promise vs Reality

    VOR 19 STD.

    Nuclear Reprocessing: Promise vs Reality

    In this episode of Decouple, Chris Keefer is joined once again by Michael Seely of the Atomic Blender to explore nuclear fuel reprocessing and the promise of unlocking vastly more energy from existing nuclear waste. We deep dive how processes like PUREX attempt to separate and reuse valuable materials like uranium and plutonium. Using real-world examples such as France’s La Hague reprocessing plant and the EBR-2 sodium fast reactor experiment, the episode situates reprocessing within its historical roots in perceptions of uranium scarcity and energy security. While reprocessing is technically impressive, it is complex, expensive, and delivers only modest gains when used with today’s reactor fleet. Keefer and Seely unpack why issues like fuel degradation, handling challenges, and economics limit its impact, and what would need to change, such as the deployment of economic fast reactors, for reprocessing to live up to is most seductive narratives.  Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rssWebsite: https://www.decouple.media

    1 Std. 42 Min.
  2. Greenwashing with Chinese Characteristics

    2. APR.

    Greenwashing with Chinese Characteristics

    In this episode we are joined by Seaver Wang to discuss the physical foundations of China’s industrial dominance in solar, batteries, electric vehicles, semiconductors, rare earth magnets, and aluminum. We examine how these sectors are presented as evidence by climate activists that clean technology is delivering a new kind of green industrial superpower and interrogate that claim at the level of production.  What sits upstream of the electrotech stack is not a network of modular green technologies, but large scale industrial systems that turn electricity into materials. These products are best understood as “congealed electricity.” In China industrial electricity, in particular, is still predominantly coal fired, often anchored in captive, mine-mouth coal plants tied directly to industrial clusters producing polysilicon, graphite, metals, and intermediates.  These are not flexible, marginal power sources that can be easily displaced by wind and solar but rather capital intensive systems built for continuous output, with emissions embedded deep in the supply chain and largely invisible at the point of use. The disconnect between hope and physical reality sustains a form of greenwashing that many climate commentators continue to reproduce, despite the underlying industrial system pointing in a very different direction.  Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44• RSS: https://anchor.fm/s/23775178/podcast/rss Website: https://www.decouple.media

    1 Std. 7 Min.
  3. The Luxury Beliefs That Broke Europe’s Energy System | Doomberg

    24. MÄRZ

    The Luxury Beliefs That Broke Europe’s Energy System | Doomberg

    Europe once treated energy as the foundation of civilization. After the oil shocks of the 1970s, it built nuclear at scale, opened the North Sea, and secured long term pipeline supply. That system produced resilience, surplus, and industrial strength. Today, the arithmetic has flipped. Europe consumes roughly 38 exajoules of hydrocarbons and produces about 6. This episode examines how that reversal happened, not as an accident, but as the result of political choices that prioritized higher order goals while eroding the physical base that supports them. This conversation connects that shift to a broader framework. Maslow’s hierarchy applied to energy systems. When policy moves up the pyramid while the base weakens, fragility follows. We walk through the numbers behind Europe’s dependence, compare the current crisis to the 1970s, and contrast Europe’s trajectory with countries that optimized for resilience instead of efficiency. The result is a clear picture of what happens when an advanced economy loses sight of the molecules that keep it running. Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rss Website: https://www.decouple.media

    1 Std. 17 Min.
  4. What's happening with CANDU?

    19. MÄRZ

    What's happening with CANDU?

    This episode features Joe St. Julian, President of Nuclear at AtkinsRéalis, outlining why Canada may be closer to a new nuclear fleet build than most observers realize. Drawing on his background delivering complex U.S. nuclear megaprojects, St. Julian explains why the recent refurbishment programs at Darlington and Bruce have rebuilt the workforce, supply chain, and execution capability needed for repeatable construction. The conversation explores the Monark concept, the strategy of replicating Darlington to minimize first-of-a-kind risk, and the licensing work required to bring legacy designs into alignment with modern standards. The discussion then turns to export markets and geopolitical strategy, including projects in Romania, Poland, and Asia. St. Julian contrasts Canada’s position, a fully active supply chain without a coordinated national build program, with emerging U.S. efforts to align policy, financing, and deployment around Westinghouse’s AP1000. The episode closes on the central question shaping Canada’s nuclear future, whether the country will mobilize its existing industrial base into a sustained build program or allow that capability to remain underutilized. Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rss Website: https://www.decouple.media

    1 Std. 17 Min.
  5. The Week LNG Became a Target

    13. MÄRZ

    The Week LNG Became a Target

    The Iranian drone strike on Qatar’s Ras Laffan industrial complex has sent shockwaves through global energy markets, triggering force majeure on 20 percent of the world’s LNG supply and closing the Strait of Hormuz to commercial shipping. To understand what just happened and what comes next, Decouple is joined by Stephen Stapczynski, Bloomberg’s leading LNG correspondent and one of the few journalists who has spent years tracking the shadow fleets, supply chains, and geopolitics that sit behind the world’s fastest-growing fossil fuel market. This conversation traces how Qatar came to sit atop the world’s most consequential gas reservoir, why Iran was never able to monetize its side of the same field, and how the shale revolution gave Washington the geopolitical freedom to let this crisis unfold. Stephen discusses the Arctic Metagas, the first LNG carrier ever successfully attacked, and what its destruction in the Mediterranean signals about a world in which the affordable, reliable LNG that was supposed to be the bridge fuel for the developing world was always premised on freedom of navigation holding. Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rss

    1 Std. 16 Min.
  6. The Fuels Powering Nuclear's Biggest Promises

    5. MÄRZ

    The Fuels Powering Nuclear's Biggest Promises

    Decouple

    1 Std. 25 Min.
  7. Nuclear Fuel: The Most Sophisticated Industrial Product You've Never Learned About

    26. FEB.

    Nuclear Fuel: The Most Sophisticated Industrial Product You've Never Learned About

    Nuclear fuel is nothing like the coal or gas it replaces. Where fossil fuels are destroyed in combustion, nuclear fuel must survive years of continuous fission inside a reactor and come out the other end looking almost exactly as it went in. In this episode, fuel engineer Michael Seely breaks down how uranium dioxide pellets are made, why the fuel rod is one of the most sophisticated manufactured objects in the world, and how an industry that once ran more than half its fleet on leaking fuel pins methodically engineered its way to near-zero failure rates by 2010. We also get into enrichment economics, the bespoke nature of reactor fuel design, the post-Fukushima push toward accident-tolerant and higher-burnup LEU Plus fuel, and why high-assay low-enriched uranium (HALEU), the feedstock required by most advanced reactor concepts, requires 40 kilograms of natural uranium and six times the separative work of conventional fuel just to produce a single kilogram. If you want to understand why nuclear plants are built the way they are, why the water cooled reactor won, and what the fuel supply chain challenge really means for the advanced reactor industry, this is the episode to start with. Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rssWebsite: https://www.decouple.media

    1 Std. 21 Min.
  8. The Most Boring Path to 10 Gigawatts: Why Nuclear Uprates Matter Right Now

    17. FEB.

    The Most Boring Path to 10 Gigawatts: Why Nuclear Uprates Matter Right Now

    For two decades the nuclear conversation has revolved around new builds, advanced reactors, and megaproject risk. Meanwhile, forty Westinghouse pressurized water reactors continue operating at roughly the same thermal output they were commissioned at decades ago, leaving six to ten gigawatts of potential capacity sitting inside existing plants. In this episode, I speak with Robb Stewart and James Krellenstein of Alva Energy about why power uprates may be the fastest and most capital efficient way to expand nuclear generation in the United States. Rather than chasing first of a kind reactor designs, they argue that modern steam generator technology, improved thermal hydraulic modeling, and standardized secondary side upgrades can unlock the equivalent of twenty to thirty 300 megawatt small modular reactors within three to five years. We examine why boiling water reactors captured most historical uprates while pressurized water reactors remained largely untouched, how balance of plant constraints rather than reactor physics often limit output, and why diverting additional steam to a separate turbine island changes both risk and economics. With hyperscalers willing to pay premium prices for reliable, low carbon power, incremental nuclear megawatts now carry real market value. The question is whether the industry can prioritize disciplined industrial execution over novelty and finally harvest the gigawatts hiding in plain sight. Listen to Decouple on: • Spotify: https://open.spotify.com/show/6PNr3ml8nEQotWWavE9kQz • Apple Podcasts: https://podcasts.apple.com/us/podcast/decouple/id1516526694?uo=4 • Overcast: https://overcast.fm/itunes1516526694/decouple • Pocket Casts: https://pca.st/ehbfrn44 • RSS: https://anchor.fm/s/23775178/podcast/rss Website: https://www.decouple.media

    1 Std. 5 Min.
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There are technologies that decouple human well-being from its ecological impacts. There are politics that enable these technologies. Join me as I interview world experts to uncover hope in this time of planetary crisis.

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  • Erstellt von
    Dr. Chris Keefer
  • Jahre aktiv
    2020 - 2026
  • Folgen
    318
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  • Copyright
    © Dr. Chris Keefer
  • Sendungswebsite
    Decouple

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