Hot Rocks: The Battery That is Changing Industrial Energy

Industrial heat is one of the biggest, most stubborn sources of carbon emissions—responsible for nearly a quarter of global greenhouse gases. High costs, complex retrofits, and tight margins keep manufacturers locked into fossil fuels. But what if there were a way to swap out natural gas boilers without costly disruptions or major infrastructure overhauls? That’s exactly what Brenmiller’s thermal energy storage (TES) technology offers. Chief Business Officer Doron Brenmiller explains how their heat battery—where energy is stored in crushed rocks—provides reliable, on-demand heat to seamlessly replace legacy systems. With industries from food processing to brewing embracing this approach, the shift to clean heat isn’t just possible—it’s already happening.

Show Notes

Guest: Doron Brenmiller

Company: Brenmiller Energy

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Discover real-world climate solutions that cut carbon emissions, boost the bottom line, and improve modern life. Each week, climate entrepreneur and author Josh Dorfman pinpoints proven playbooks, business models, and technologies accelerating the low-carbon economy in future-forward towns and cities. Hear from CEOs, Mayors, startup founders, policymakers, and other innovators addressing climate change head-on to shape a smarter, more sustainable future.