Local Energy
Industrial heat causes 20% of global greenhouse gas emissions — and almost nobody's working on the easy part. James Macnaghten is a Cambridge-trained engineer with 20+ patents who shut down his first energy storage company after realizing it's often cheaper to throw renewable energy away than store it. Now as CEO of Caldera, he's converting cheap electricity into industrial steam using recycled aluminum and volcanic rock — and deploying units into hospitals and factories without requiring grid upgrades. James breaks down why the energy world keeps chasing steelmaking and cement while ignoring brewing, food, and pharma. He makes the case for hybridization over going 100% clean, shares why he thinks oil demand is headed for a crash, and questions whether the AI energy boom can survive its own economics. Caldera's first appearance on the show — and our first guest from across the Atlantic. Timestamps: 0:00 Intro 0:57 Meet James Macnaghten 2:52 Have humans landed on the moon? 3:22 Tourists or engineers — which gives more grief? 3:35 20+ patents and what James learned about filing 5:09 From Cambridge to Isentropic to Caldera 7:48 The epiphany: cheaper to throw energy away 9:31 Never use air as a heat transfer medium 15:53 Industrial heat — the overlooked 20% 16:17 Why we're solving the wrong problem first 18:51 Hybridization over 100% clean 20:02 The 1,000-hour rule for surplus renewables 21:04 Caldera alongside factory gas boilers 23:02 Diesel prices and R&D cycles 27:58 GEA's investment in Caldera 29:34 Heat pumps and managing peak demand 31:36 First deployments going into a hospital 33:31 Oil demand crash prediction 35:23 Will the AI energy bubble burst? 37:15 Where to find James Guest links: James Macnaghten — https://www.linkedin.com/in/james-macnaghten-7aaa65a/ Caldera — https://www.caldera.co.uk/ Connect with us: Website — https://localenergy.com Peter Brecht — https://www.linkedin.com/in/peterbrecht/ Wade Spear — https://www.linkedin.com/in/wadespear/ Guest inquiries — peter@localenergy.com
23 episodios
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