Cleaning Up: Leadership in an Age of Climate Change

• Inside Europe’s Largest AI Data Centre: A Green Giant Rises | Ep235: Robert Dunn

  What does it take to build Europe’s largest and most sustainable data-centre campus, from an empty plot of land to a 1.2-gigawatt giant of AI? How do you future-proof a facility when chip technology is evolving at breakneck speed? And what happens when the site of former coal-fired power plant becomes a global hub for AI?In this special, on-location episode of Cleaning Up, Michael Liebreich visits Sines, Portugal, where Start Campus is transforming the site of a decommissioned coal plant into a next-generation data-centre campus that once finished will be Europe’s largest data centre. CEO Robert Dunn takes us inside the first operational building, currently 29MW but just 2.5% of what’s to come, to explore the engineering, economics, and vision behind a €10 billion physical infrastructure build that will eventually house an additional €40 billion in incoming IT hardware.From earthquake-proof structures to seawater cooling and uninterruptible power supply systems, Rob breaks down what it means to design for 99.99999% uptime in an AI-driven world. Michael and Rob also dive into the reality and hype surrounding AI: the surge in GPU-hungry AI training, the race to build at gigawatt scale, the challenges of financing these mega-projects, and the balancing act between speed, cost, sustainability, and long-term viability.Set against the backdrop of Microsoft’s freshly announced $10 billion investment in the Sines campus, this episode illuminates how the data-centre industry is reshaping global energy systems, local communities, and the future of compute.Leadership Circle:Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more:Watch this episode on YouTube: https://youtu.be/juAyLAUmU3wThe Start Campus website: https://www.startcampus.pt/Microsoft makes one of its largest investments in Europe at Start Campus in Portugal: https://www.startcampus.pt/microsoft-makes-one-of-its-largest-investments-in-europe-at-start-campus-in-portugalMichael’s Green Giant’s Whitepaper: https://pioneerpoint.com/wp-content/uploads/2021/11/2021.11.17-Green-Giants-White-Paper-Final.pdfThe Year Energy Woke Up To AI | Audioblog 14: Generative AI, The Power and the Glory: https://www.youtube.com/watch?v=OwZ2iNh133A

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• California vs Trump In The Battle For Clean Air | Ep234: Liane Randolph

  What happens when the world’s most ambitious climate state runs head-on into a hostile federal government? Can California still lead the clean-energy transition while battling rising costs, wildfires and the Trump government’s sweeping tariffs? And what does a “pragmatic reset” on climate policy look like when the stakes have never been higher?This week on Cleaning Up Bryony Worthington sits down with Liane Randolph, former Chair of the California Air Resources Board (CARB) and longtime public servant, shaping California’s climate, energy, and air-quality strategy. Across roles spanning the Public Utilities Commission and state natural resources agencies, Randolph has been at the center of some of the most consequential policy decisions in the United States — from the rise of rooftop solar and utility-scale storage to the creation of zero-emission vehicle mandates and the state’s pioneering cap-and-invest system.Together, they unpack how California built the modern EV market, the origins of the famous “duck curve,” and why central planning turned out to be critical for keeping the lights on in a decarbonizing grid. Randolph also details the extraordinary federal pushback now facing the state: repealed Clean Air Act waivers, legal battles over truck and car standards, and tariff-driven supply-chain shocks that threaten progress.The episode explores:The past and future of California’s zero-emission vehicle strategy — from catalytic converters to the birth of TeslaWhy batteries exploded onto the grid, and how wildfire adaptation is reshaping costsThe mechanics and impacts of California’s whole-economy cap-and-invest programThe new affordability crisis — and whether a pragmatic climate “reset” is neededElectric aviation, high-speed rail, and the technologies California should bet on nextThe state’s 2045 net-zero planning — and which sectors will need breakthroughs like DAC and industrial CCSLeadership Circle:Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.Discover more:CARB: https://ww2.arb.ca.gov/First Cars, Now Planes: Is The Future of Flying Electric? Ep194: Anders Forslund: https://www.youtube.com/watch?v=hW3uTBbAGHAWhy Is It So Hard to Clean Up Global Shipping? https://www.youtube.com/watch?v=HdUCidkeDto

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• ⁠The €65 Billion Plan to Modernise Germany’s Grids | Ep233: Tim Meyerjürgens

  What does it take to future-proof Europe’s electricity grid? How do you finance €65 billion in infrastructure without driving up consumer electricity costs? And can the permitting process be sped up to become fast enough for the energy transition?This week on Cleaning Up, Michael Liebreich sits down with Tim Meyerjürgens, CEO of TenneT Germany, the country’s largest transmission system operator, to explore the physics and finance behind decarbonising Europe’s power networks.From billion-euro transmission lines to the domestic and international politics of connecting the North Sea’s vast offshore wind potential with Germany’s industrial heartland, Meyerjürgens offers a rare inside view of one of Europe’s most complex and capital-intensive transitions.The conversation dives into:• How TenneT split its Dutch and German operations to attract €9.5 billion in equity from investors like Norges Bank and GIC• The challenge of accelerating grid buildout from 20-year to 5-year timelines• The delicate balance between regulation, investment, and public acceptance• Why building our transmission across Europe is key to energy resilienceThis episode was supported by TenneT Germany.Leadership Circle:Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.Discover more:• TenneT Germany’s website: https://www.tennet.eu/de-en/home • TenneT Germany successfully concludes syndication of €12 billion revolving credit facility: https://www.tennet.eu/de-en/news/tennet-germany-successfully-concludes-syndication-eu12-billion-revolving-credit-facility• The £60 Billion Plan To Rewire Britain | Ep227: John Pettigrew: https://www.youtube.com/watch?v=S7Lg1A958aA• Can Europe Survive the Renewables Transition? Ep201: Nikos Tsafos: https://www.youtube.com/watch?v=dUvKzs82Mi0

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• Why There'll Never Be A Hydrogen Economy | Ep232: Erik Rakhou

  Is green hydrogen a ‘miracle fuel’ or an expensive illusion? Can we decarbonize without it? And what happens when hydrogen hype meets hard economics?This week on Cleaning Up, Michael Liebreich debates Erik Rakhou, author of Touching Hydrogen Future, in a no-holds-barred discussion moderated by Andrew Critchlow of S&P Global Commodity Insights.Together, they contest one of the most contentious topics in energy today: hydrogen. Liebreich argues that hydrogen is plagued by physics-driven cost barriers and limited real-world applications, while Rakhou defends its potential as a critical tool for industrial decarbonization, energy resilience, and long-term security.From the potential of green vs. blue hydrogen, to global ammonia trade routes, Europe’s pipeline ambitions, and China’s hydrogen cost curve, this debate pulls no punches. Topics include:Whether there’ll ever be a hydrogen-based economyWhy hydrogen economics remain so challengingThe role of carbon pricing vs. subsidiese-Fuels and hydrogen’s place in transport, steel, and aviationWhy electrification trumps hydrogenThis episode was recorded at the S&P Global offices in London and originally broadcast as a S&P Global webinar on October 29, 2025. THanks to S&P Global and Andrew Critchlow for hosting the debate.Leadership Circle:Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Read more:Erik's website: https://rakhou.comThe EU’s hydrogen strategy: https://energy.ec.europa.eu/topics/eus-energy-system/hydrogen_en• Data on EU natural gas prices 2010-2025: https://drive.google.com/file/d/1buQTdpQOMShue-zXyZUYVgZ9dPe5rZ5Y/view?usp=share_linkMichael Liebreich's Keynote Speech at World Hydrogen Congress 2022: https://www.youtube.com/watch?v=Xj900aBPkiYErik’s book ‘Touching Hydrogen Futures’: https://europeangasmarket.euEuropean Court of Auditors call for a hydrogen reality check: https://www.eca.europa.eu/en/news/NEWS-SR-2024-11Michael’s Pragmatic Climate Reset: https://about.bnef.com/insights/clean-energy/liebreich-the-pragmatic-climate-reset-part-i/

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• The Electrotech Revolution Will Not Be Fossilized | Ep231: Kingsmill Bond

  What if the energy transition isn’t about sacrifice and belt-tightening, but abundance? Are electrified technologies ready to replace the polluting fossil fuel system we’re so reliant on? And what will it mean for western nations if they can’t keep up with China? In this special bonus episode of Cleaning Up, recorded live in Berlin, Michael Liebreich sits down with Kingsmill Bond, strategist at Ember, to unpack The Electrotech Revolution, a powerful new framing of the global shift from a fossil-fuel economy to an electrified, efficient, and inevitable clean energy system.Together, Kingsmill and Michael explore why the growth of solar and wind is now outpacing fossil fuels worldwide, how China’s leadership is reshaping the global landscape, and what Europe and the US must do to compete. Leadership Circle:Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Links and more:Ember’s Electrotech Revolution Report: https://ember-energy.org/latest-insights/the-electrotech-revolution/Ember’s Funders: https://ember-energy.org/about/Lauri Myllyvirta on Cleaning Up: https://youtu.be/FqjvCeR9VLgMichael’s Pragmatic Reset Part 1: https://www.youtube.com/watch?v=OHKGor2_BzQMichael’s Pragmatic Reset Part 1: https://www.youtube.com/watch?v=OFF1imh1U2c

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