Épisodes

  • Daniel Bloch - Iron Energy

    Daniel Bloch - Iron Energy
    Apr 14 2026
    Storing and transporting renewable hydrogen remains one of the hardest challenges of the energy transition, requiring complex and expensive high-pressure tanks. The industry continues to rely on these inefficient methods. Iron Energy replaces traditional tanks by turning hydrogen into a stable, solid energy carrier. By reacting hydrogen with iron oxide to safely lock the energy into metallic iron, Iron Energy allows for indefinite storage and releases almost 100% of the injected hydrogen on demand simply by adding steam. Daniel, Iron Energy's co-founder, joins the podcast to talk about his unusual journey from finance to deep tech, the company's scale-up journey and why their business model works so well.
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    38 min
  • Frank Rattey - Planeteers

    Frank Rattey - Planeteers
    Mar 24 2026
    Global climate goals require massive amounts of carbon removal. Therefore, we need to find scalable, permanent solutions. Many efforts continue to rely solely on land-based technologies. Planeteers unlocks the planet's largest natural carbon sink by enhancing the ocean's ability to safely absorb and store CO2. By operating at the intersection of ocean science and entrepreneurship, Planeteers provides a vital carbon removal method that permanently locks away emissions while actively combating ocean acidification. Frank, Planeteers' Founder and Managing Director, joins the podcast to talk about his decision to leave the corporate world, how the company plans to scale and what motivates him to keep going.
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    38 min
  • Oscar Hållén - CemVision

    Oscar Hållén - CemVision
    Mar 3 2026
    The traditional cement industry relies on proven chemistry and typically looks for minor process improvements rather than fundamental change. This has contributed to the fact that, until now, the industry has produced high CO2 emissions. Cemvision reinvents the process from the ground up by replacing virgin limestone with recycled industrial residues. But creating green cement is only part of the equation - in such a logistics-heavy business, figuring out how to actually get the physical product to the customer is a critical, often overlooked challenge. Oscar, Cemvision's CEO, joins the podcast to talk about bringing true core innovation to a traditional industry, solving the massive logistics puzzle, and what it was like to meet Bill Gates a few weeks ago.
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    39 min
  • Tobias Sodoge - NeoCarbon

    Tobias Sodoge - NeoCarbon
    Feb 10 2026
    Data centers generate immense heat and require constant, energy-intensive cooling to run their servers. Those facilities typically vent that excess energy as waste, until now. NeoCarbon turns data centers into carbon capture machines by integrating Direct Air Capture technology directly into their infrastructure. By utilizing the servers' waste heat to power the process, NeoCarbon acts as a thermal buffer that drastically reduces cooling needs while actively capturing CO2. Tobias, NeoCarbon’s CEO, joins me to talk about this paradigm shift in collaboration, the holistic solution for facility operators and the company's commercial focus on the data center market. Tune in to learn what NeoCarbon's approach has to do with the German "Reinheitsgebot" for brewing beer.
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    44 min
  • Thomas Bräck - Meva Energy

    Thomas Bräck - Meva Energy
    Jan 20 2026
    Heavy industries need high temperatures to run their processes, making certain processes hard to electrify. Those companies continue to rely on fossil gas, until now. Meva Energy replaces fossil gas by building gasification plants directly on-site at the factory. By converting local biomass residue into clean, renewable gas, Meva provides the intense heat needed for industrial processes, cutting carbon emissions and stabilizing energy costs instantly. Thomas, Meva's Business Development Manager, joins the podcast to talk about the technology, applications and the company's future plans.
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    29 min
  • Hanna Ojanen - Carbo Culture

    Hanna Ojanen - Carbo Culture
    Dec 9 2025
    Reaching Net Zero is one of the defining challenges of our time, but reducing emissions alone won't be enough - we also need to actively remove carbon from the atmosphere. That’s exactly where Carbo Culture comes in. Their team has developed a proprietary technology that converts waste biomass into stable biochar. In this episode, I talk with Hanna about how their technology works, the critical role of biochar in the climate equation and what it takes to scale a physical solution to a gigaton level. We also dive into a crucial but often overlooked angle: the lessons she brings from her background in the Prime Minister’s Office in Finland and how navigating the complex world of policy is just as vital as the engineering when building a deep-tech market from scratch.
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    36 min
  • Karthik Kunjali - Stockholm Water Technology

    Karthik Kunjali - Stockholm Water Technology
    Nov 18 2025
    Clean water is one of the defining challenges of our time and even its own Sustainable Development Goal. One essential piece of the puzzle is wastewater purification. That’s exactly where Stockholm Water Technology comes in. Their team has developed a chemical- and membrane-free purification technology that uses only electricity to remove contaminants and even recover valuable nutrients. In this episode, I talk with Karthik about how their technology works, why it matters and what it could mean for the future of water treatment. We also dive into an unexpected angle: the lessons he brings from his career as a professional athlete and how they shape his approach to building and scaling a deep-tech company.
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    33 min
  • Felix Bünning - viboo

    Felix Bünning - viboo
    Oct 28 2025
    As the heating season kicks off, energy use and energy bills start climbing fast. In this episode, I talk with Felix, co-founder and CEO at viboo, who are tackling this challenge head-on. Their platform uses AI-driven heating control to help light commercial buildings save energy, cut costs, and reduce CO₂ emissions. We dive into how their solution works, why it’s particularly effective for light commercial buildings, and how it makes energy efficiency both smart and affordable and how buildings can become an active part of the energy transition.
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    37 min