Arvin Ganesan, CEO of Fourth Power, joins Steph Speirs to unpack what’s really happening at the intersection of extreme heat, carbon blocks, and the future of long-duration energy storage. From the “25% demand surge” hitting the U.S. grid to why traditional lithium-ion isn’t enough for our wind and solar future, Arvin breaks down the massive technological friction points holding back the next generation of environmental giants.
Learn why the shift to decentralized power is making the grid more volatile and how a career spanning from the U.S. Senate and Obama-era EPA to Apple led Arvin to solve the “loneliness” of climate tech entrepreneurship.
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âť“ Common Questions
What is long-duration energy storage (LDES)? It refers to systems that can store energy for 10+ hours to handle grid fluctuations when the sun isn’t shining.
How does Fourth Power’s technology work? It uses electricity to heat carbon blocks to extreme temperatures, which can then be converted back to power as needed.
Why is grid demand increasing so fast? The primary drivers are the massive energy needs of AI data centers, the transition to Electric Vehicles (EVs), and a resurgence in domestic manufacturing.
What are the biggest challenges for climate tech CEOs? Beyond the tech, it’s about managing investor trust and the emotional toll of leading a “hard tech” revolution.
In the midst of ongoing global military conflicts, Ellsworth “Tony” Williams and General Jack Hammond join for a timely conversation about their military journeys and their life-giving efforts addressing the invisible wounds of military service. They share openly about their expected and unexpected paths into the military and into advocacy work. In this revealing discussion, we walk through the challenges of transitioning from military service to civilian life, and we acknowledge the ways these difficulties can unknowingly persist for years. We also address the danger of ignoring the invisible impacts of military service, whether traumatic brain injury, PTSD, or other emotional and mental health challenges. We also highlight the often neglected impact of military service on veterans’ families and their communities. In this episode, you’ll learn about important resources and the ways veterans can access innovative programs, effective tools, and supportive communities to bring about healing and thriving. This inspiring and empowering conversation centers on the critical work of reaching one life at a time. Whether you’re a veteran, you know a veteran, or you’re a member of society interacting with veterans as so many of us do, this episode is for you.
The Addy Hour is recorded at the Yale Teaching Studios, with engineering support from Ryan McEvoy, edited by Orlando Suazo, and hosted by Dr. Nii Addy. If you enjoyed this episode, please leave a rating and follow our podcast page, to help us grow this podcast and our community.
Antoine Vagneur-Jones, Head of Trade & Supply Chains at Bloomberg NEF, joins Steph Speirs to unpack what’s really happening at the intersection of tariffs, critical minerals, and the clean energy transition. From the “3x price gap” hitting U.S. solar modules to why the “New Oil” narrative is questionable, Antoine breaks down the massive geopolitical friction points holding back the next generation of environmental giants.
Learn why blanket tariffs might be hurting domestic manufacturers more than protecting them and how the global battle for lithium, cobalt, and rare earth elements is redefining the “Valley of Death” for clean tech startups.
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Common Questions
Are critical minerals actually as scarce as oil?
Unlike oil, which is burned and lost, minerals like lithium are part of a hardware-based system and can be recycled, meaning we don’t face the same “scarcity” in the ground.
Why are solar panels more expensive in the U.S.?
Due to a “wall of tariffs,” solar module prices in the U.S. are approximately three times higher than the rest of the world.
Does the U.S. rely on China for refining?
Yes. China currently controls approximately 60% of lithium refining capacity and 85% of rare earth mineral processing.
How long does it take to move a clean tech factory?
While battery plants are complex, a solar module assembly facility can be relocated to a new geography in roughly six months to avoid trade barriers.
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#cleanenergy #tradewar #sustainability #climatetech #geopolitics #greenenergy
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Future in Bloom bridges climate tech and human nature. Hosted by clean energy entrepreneur Steph Speirs, Future in Bloom brings together innovators, scientists, and investors working on the world’s most promising planetary solutions.
Adapted from the Yale School of Management course “Climate Tech Innovation and Commercialization,” learners discover next generation technologies through data-driven lectures, deep dive studio interviews, and vivid short documentaries. Future in Bloom is here to show that a thriving future is within reach.
Future in Bloom is supported by the Yale Center for Business and the Environment.
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About Me:
Steph Speirs is a clean energy entrepreneur, strategic advisor, and teacher. She founded Future in Bloom, a media studio about intelligent solutions for a thriving world. Steph teaches climate entrepreneurship at Yale School of Management and is a Resident Fellow at the Center for Business and the Environment. She keynotes and advises philanthropists, investors, and companies on the future of climate tech and clean energy. She serves on the Board of Directors of the Sierra Club Foundation, Vote Solar, and on the Credit Committee of the Community Investment Guarantee Pool. Steph most recently cofounded and was CEO of Solstice, an enterprise dedicated to radically expanding the number of American households that can take advantage of clean energy using community-shared solar farms (acquired by MyPower/Mitsui). Steph previously worked at the White House National Security Council and in clean energy companies in India and Pakistan.
How AI Slashes Clean Energy R&D by Decades W/ Lisbeth Kaufman
Lisbeth Kaufman, AWS Head of Climate Tech Startups and former founder, joins Steph Speirs to discuss how the world’s largest cloud provider is accelerating the next generation of environmental giants. From “building a star on Earth” with fusion energy to AI-powered robots eliminating pesticides, Elizabeth breaks down the massive $7 billion resource engine helping startups scale past the “Valley of Death.” Learn why big tech is the secret weapon for 24/7 clean energy and how generative AI is slashing R&D timelines from 40 years to just 10.
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📧 Subscribe to Our Substack: https://substack.com/@futureinbloom
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#ClimateTech #Sustainability #ArtificialIntelligence #CleanEnergy #Startups #FutureInBloom
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Future in Bloom bridges climate tech and human nature. Hosted by clean energy entrepreneur Steph Speirs, Future in Bloom brings together innovators, scientists, and investors working on the world’s most promising planetary solutions.
Adapted from the Yale School of Management course “Climate Tech Innovation and Commercialization,” learners discover next generation technologies through data-driven lectures, deep dive studio interviews, and vivid short documentaries. Future in Bloom is here to show that a thriving future is within reach.
Future in Bloom is supported by the Yale Center for Business and the Environment.
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About Me:
Steph Speirs is a clean energy entrepreneur, strategic advisor, and teacher. She founded Future in Bloom, a media studio about intelligent solutions for a thriving world. Steph teaches climate entrepreneurship at Yale School of Management and is a Resident Fellow at the Center for Business and the Environment. She keynotes and advises philanthropists, investors, and companies on the future of climate tech and clean energy. She serves on the Board of Directors of the Sierra Club Foundation, Vote Solar, and on the Credit Committee of the Community Investment Guarantee Pool. Steph most recently cofounded and was CEO of Solstice, an enterprise dedicated to radically expanding the number of American households that can take advantage of clean energy using community-shared solar farms (acquired by MyPower/Mitsui). Steph previously worked at the White House National Security Council and in clean energy companies in India and Pakistan.
An intergenerational story of addiction recovery, dementia, loss and hope
This episode is a true gem. Join in for a refreshing and life-giving conversation inspired by the Off-Broadway production, The Reservoir. I welcome playwright Jake Brasch and cast member Caroline Aaron for a thought-provoking discussion about art, science, mental health, relationships, and healing. Come hear the journey that brought Jake, Caroline, and so many others together for this poignant production that navigates through addiction recovery, dementia, and the ups and downs of family relationships across generations. You’ll get an inside look into this riveting story that tackles the reality of life’s challenges with a surprising mixture of deep reflection, humor and levity. In our conversation, we also delve into the process of creating a piece of art for live theater. We talk about the stages of writing in isolation, collaborating, and sometimes disagreeing with the cast members and designers, all to eventually create something beautiful together. Our guests generously share the lessons they’ve learned and the lessons they’re still learning. We also take a step back to consider the gift of cultivating time and our need to fight against cancel culture. We talk openly about the importance of not forgetting the older members of our society, who too often become invisible. Roles even reverse at times, as our guests ask Dr. Addy his thoughts on memory, community, and truth-seeking, from a neuroscience perspective. A truly moving conversation.
Find out more about the production or get tickets at https://atlantictheater.org/production/the-reservoir/
Hannah and Mark discuss the exciting work of the admissions office’s “I-Team” with colleague and director of international admissions, John. The officers review the process of applying to Yale as an international student and share how officers evaluate applications from every corner of the globe with a holistic understanding of students’ diverse contexts. Hannah and John share their favorite experiences from traveling internationally and provide advice for students interested in studying in the United States.
Hannah and Mark respond to the latest questions sent in by podcast listeners. Admissions officer Amelia joins to discuss summer programs, high school course rigor, Yale’s new fly-in program, and planning for the college admissions process early in high school.
A Day In the Life of a Former Maximum-Security Psychiatric Hospital Director
Tune in this week for a rare opportunity to step into the world of a mental health institution leader. You’ll hear powerful reflections from Dr. Charles Dike, previous medical director of a maximum-security psychiatric hospital and current CEO of a state mental health center. He’ll bring you into his day-to-day experience as a forensic psychiatrist, and the realities of leading in a challenging, rewarding and at times intense environment. Dr. Dike readily acknowledges the importance of collaboration when working through turbulence and when trying to make a positive impact in people’s lives. With clarity and conviction, he describes the necessity of holding on to every single person’s humanity, even while acknowledging harms done by and experienced by some of those he serves. We’ll also hear about Dr. Dike’s principles for motivating others and promoting team growth, and his priority of building a culture of care amongst patients, families, staff, and community. You’ll hear about his out-of-the-box approaches, and the ways he leads as a coach. Join in to hear from this truly transformative leader, who leads with passion, humility, and strength alongside a remarkable openness to guidance and correction.
The Addy Hour is recorded at the Yale Teaching Studios, with engineering support from Ryan McEvoy, edited by Orlando Suazo, and hosted by Dr. Nii Addy. If you enjoyed this episode, please leave a rating and follow our podcast page, to help us grow this podcast and our community.
Navigating the Climate Tech Capital Stack & The Future of VC | Sophie Purdom
The “Green Premium” is officially dead. If you think a great invention is enough to save the planet—and a business—think again. In this eye-opening breakdown, Sophie Purdom (General Partner at Planeteer Capital) pulls back the curtain on the brutal reality of climate tech. While there’s an $82 billion “gold mine” of dry powder waiting, most founders are looking in the wrong places.
Whether you’re curious about how the world’s biggest industries (Energy, Food, and Transport) are being rebuilt or you want to know why your favorite “eco-friendly” startup might vanish tomorrow, Sophie provides the unfiltered truth on what it actually takes to win the climate war.
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Common Questions
Why are climate tech startups failing? Many rely on a “green premium” (charging more for being eco-friendly), which fails in a tough economy. Success now requires being cheaper or better than the “dirty” alternative.
Is there still money for new climate companies? Yes, but the “dry powder” is concentrated. Investors are pivoting away from pure software toward “hardware-enabled” solutions that solve real-world industrial problems.
How is AI affecting climate change? AI requires massive amounts of energy for data centers (the “Hungry Hippo”), creating a massive challenge—and opportunity—for the energy grid.
What is the best way to get involved in climate tech? According to Sophie, the world needs more builders and founders in heavy industry and risk mitigation rather than more venture capitalists.