CORE Knowledge

Hosted by Nick Cestari

Business Technology

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Apr 2026

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About the show

CORE knowledge is a podcast devoted to exploring the many facets and immense potential of an old, but newly revivied energy source; Geothermal. The aim is to engage the energy, policy making and the investment communities in order to spur innovation in the geothermal space and also bring awareness to the immense potential it has to be a baseload energy source for the future.

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60 recent

April 29, 202649 min

Critical Energy | Spencer Jackson on CORE Knowledge Podcast

Factory built, deployed in modules, cost effective, flexible power generation systems for geothermal? That's right, Critical Energy is aiming to change the landscape for geothermal development timelines with their cutting edge, factory built, modular ORC turbines. Spencer Jackson, Founder and CEO, spent many years at SpaceX working with systems while much hotter, not that different and he thought to himself why not tackle heat recovery in a meaningful way. With their approach, the landscape for geothermal could be radically revitalized, lowering barriers to entry, lengthy time to markets, decreasing costs, supply chain bottlenecks, etc. ultimately unlocking more resource and capital faster. Spencer Jackson https://www.linkedin.com/in/spencer-j-jackson/ Critical Energy https://www.linkedin.com/company/critical-energy-systems/posts/?feedView=all Spencer's Book Recommendation Hitchhikers guide to the Galaxy CORE Knowledge https://www.linkedin.com/company/core-geothermal Nick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

March 2, 202648 min

GeoExchange Australia | Yale Carden on CORE Knowledge Podcast

Ever wanted a lower electrical bill during the summer or winter? Look no further than your friendly geothermal heat pump, that uses the ambient temperature of the Earth to heat or cool your home, office building, school, etc. It has often been overlooked in areas with hotter climates, regions where geothermal is primarily harvested for electricity or just for lack of knowledge behind the mechanics of deploying such a system. Well, in today's episode, I talk with Yale Carden of GeoExchange Australia, about the 20 years of developing, deploying, partnering and overall sharing of knowledge that he and team have done. GeoExchange Australia https://www.linkedin.com/company/geoexchange-australia/posts/?feedView=all Yale Carden https://www.linkedin.com/in/yalecarden/ CORE Knowledge https://www.linkedin.com/company/core-geothermal Nick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

August 27, 202547 min

Cascade Institute | Peter Massie on CORE Knowledge Podcast

The role that research centers play in any energy ecosystem are extremely vital. We have seen this play out in the Oil and Gas space, mining, environmental, and so on. Well, Geothermal is no different. The Cascade Institute is on a mission to unlock ultra-deep geothermal resources within Canada specifically with the hopes that it spurs traction globally. From funding models, policy support, to in field test sites where technology can be de-risked unlocking critical investment dollars, these institutes are a key piece to the energy ecosystem. This episode features Peter Massie, the Director of the Geothermal office at the Cascade Institute and we touch on many of these topics and more, so come have a listen. Cascade Institute https://www.linkedin.com/company/cascade-institute/posts/?feedView=allPeter Massiehttps://www.linkedin.com/in/peter-massie/Peter's Book Recommendation How Solar Energy Became Cheap by Greg NenetHow Solar Energy Became Cheap: A Model for Low-Carbon Innovation: Nemet, Gregory F.: 9780367136598: Amazon.com: BooksCORE Knowledgehttps://www.linkedin.com/company/core-geothermalNick Cestarihttps://www.linkedin.com/in/nick-cestari-48059268/

June 30, 202545 min

IEA | Heymi Bahar on CORE Knowledge Podcast

The Future of Geothermal. What is it and how does it play out? The recent report by the IEA with the aforementioned title "The Future of Geothermal" goes into detail on the past, present and future of geothermal, new technologies, startups, oil and gas crossover, and so much more. It is well worth a read, but in the meantime, I sat down with Heymi Bahar, a senior analyst with the IEA to talk about the report in detail, giving a view into what the future may indeed hold for this amazing resource - the heat beneath our feet. Heymi Bahar https://www.linkedin.com/in/heymi-bahar/IEA https://www.linkedin.com/company/international-energy-agency/posts/?feedView=allHeymi's Book Recommendation The Perfectionist: Life and death in Haue cuisine by Stephen Chelminski Nick Cestari https://www.linkedin.com/in/nick-cestari-48059268/CORE Knowledge https://www.linkedin.com/company/core-geothermal

May 14, 202553 min

ENNA Geo | Boris Vidos and Ivana Ivancic on CORE Knowledge Podcast

The heat beneath your feet. We say it at the beginning of every episode, and we mean it. There exists an immense energy source everywhere you are beneath your feet. Our goal is to shed light on the amazing people and companies working to bring geothermal projects to life. This week, Croatia is the country, and ENNA Geo is the company taking charge, bringing forward geothermal projects with the aim of having 20-30 MW online in the next 5 years. Tune into my conversation with Ivana Ivancic and Boris Vidos to hear more about the challenges ahead, promising projects and more. ENNA Geo https://www.linkedin.com/company/ennagroup/Ivanahttps://www.linkedin.com/in/ivana-ivancic-29385238/Borishttps://www.linkedin.com/in/boris-vidos/Book RecommendationsWhat I talk about when I talk about Running by Haruki Murakami and the Bible12 rules for Life by Jordan PetersonCORE Knowledge https://www.linkedin.com/company/core-geothermalNick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

March 26, 202551 min

Strataphy | Ammar Alali on CORE Knowledge Podcast

Heating and cooling as an industry is one of the main offenders when it comes to emissions and accounts for a large pull on the energy sector as well. So, how do you solve the problem of decreasing energy demand while increasing resiliency and sustainability? Geothermal. The Earth has a stable temperature of around 55-70 degrees F depending on depth everywhere in the world and it can be tapped to be utilized for heating and cooling, both residential and commercial. I sit down with Ammar Alali, the CEO of Strataphy to talk about the huge opportunity that sits in front of the geothermal industry and how he and his team are looking to capitalize. Strataphy https://www.strataphy.com/Ammar Alali https://www.linkedin.com/in/ammar-alali/Ammar's Book RecommendationThe Tipping Point by Malcolm GladwellCORE Knowledge https://www.linkedin.com/company/core-geothermalNick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

February 24, 202548 min

GEORG | Sigurdur Markusson on CORE Knowledge Podcast

Innovation is at the heart of the energy industry and with geothermal it is no different. Sigurdur Markusson has been involved in a variety of projects that have dealt with harvesting geothermal energy and using it to sustainably produce food and now takes over the role of managing director at GEORG. It is time for collaboration, innovation, and awareness to accelerate for the geothermal industry. GEORGhttps://www.linkedin.com/company/georg-geothermal-research-cluster/about/Sigurdur Markussonhttps://www.linkedin.com/in/sigurdur-h-markusson-8b979729/CORE Knowledgehttps://www.linkedin.com/company/core-geothermalNick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

January 27, 202550 min

GeoExchange | Celia Wells on CORE Knowledge Podcast

The Earth's heat produced from radioactive decay in the core has many benefits once recovered and brought to the surface. Most focus is placed on its ability to provide baseload power, which is important, but arguably the most widespread use case being heating and cooling gets overlooked. Geothermal is ubiquitous throughout the planet, however, it does vary by location the feasibility of extracting the resource, but harvesting low temperature resources can be done most anywhere. Once harvested, the use cases are seemingly endless, heat and cool your home, office building, school, grow vegetables, process dairy, aquaculture, and so much more. I had the chance to sit down with Celia Wells who is the Strategic Developments Manager at GeoExchange NZ and talk about their goals, the size of the prize and what challenges lie ahead. GeoExchange NZhttps://www.linkedin.com/company/geoexchange-new-zealand/posts/?feedView=allCelia Wellshttps://www.linkedin.com/in/celia-wells-74402291/Celia's Book Recommendation Range by David Epstein CORE Knowledgehttps://www.linkedin.com/company/core-geothermalNick Cestari https://www.linkedin.com/in/nick-cestari-48059268/

December 31, 202442 min

Magnitude Global Finance | Amanda Lonsdale on CORE Knowledge Podcast

Large scale energy infrastructure projects require significant up-front investment and usually carry a considerable amount of risk. How the projects are financed plays a key role in the success of the project and future scalability. Geothermal is no different than the Oil and Gas industry, solar, wind, hydrogen you name it - a lot of money will be needed but will need to be efficiently and effectively deployed to achieve the desired outcome for all stakeholders. I sit down with Amanda Lonsdale at Magnitude Global Finance to talk about the nuances in financing large scale projects, available instruments to mitigate risk, and hurdles still to overcome. Magnitude Global Finance https://www.linkedin.com/company/magnitude-global-finance/Amanda Lonsdale https://www.linkedin.com/in/amanda-lonsdale-390749/Amanda's Book RecommendationCreating Climate Wealth by Jigar Shah CORE Knowledgehttps://www.linkedin.com/company/core-geothermalNick Cestarihttps://www.linkedin.com/in/nick-cestari-48059268/

November 25, 202427 min

World Geothermal Energy Day | Blue Spark and Microseismic on CORE Knowledge Podcast

World Geothermal Energy Day 2024 - CORE Knowledge got to be a part by helping to raise awareness, be a voice and spread educational content around geothermal and what roles it can play in the energy ecosystem of today and tomorrow. I sit down with Jason Fisher from Blue Spark and Peter Duncan from Microseismic to cover a variety of topics from why they love geothermal to how it has changed the way we look at decarbonizing the globe. Blue Spark https://www.linkedin.com/company/bluesparkenergy/Jason Fisher https://www.linkedin.com/in/geothermal-fisher/Microseismichttps://www.linkedin.com/company/microseismicinc/posts/?feedView=allPeter Duncan https://www.linkedin.com/in/petermduncan/CORE Knowledgehttps://www.linkedin.com/company/core-geothermalNick Cestari https://www.linkedin.com/in/nick-cestari-48059268/Gallanthttps://www.linkedin.com/company/gallantculture/posts/?feedView=all

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