In this episode of The Sustainable Tech Podcast, I sit down with Dr. Marshall Cox, founder of Kelvin, a company revolutionizing energy efficiency in urban buildings. Marshall shares his journey from material science research to entrepreneurship, detailing how a personal frustration with apartment heating sparked the creation of Kelvin’s flagship product, the Cozy. We dive into the challenges of scaling hardware solutions, navigating the cleantech funding ecosystem, and the surprising hurdles of energy efficiency certifications.Marshall also provides insightful perspectives on the intersection of hardware and sustainability, the critical role of electrification in decarbonizing buildings, and Kelvin’s innovative approach to making these upgrades financially accessible. Whether you're passionate about climate tech, curious about urban energy solutions, or simply love a good founder story, this episode is packed with inspiration and valuable insights.Learn more on the Kelvin website: https://kel.vin/🚀 Subscribe to the podcast:https://sustainabletechpodcast.com/✉️ Subscribe to the newsletter:https://s.goec.io/stp-newsletter🎥 Watch on YouTube:https://s.goec.io/stp-youtube