The #1 Podcast for ClimateTech Entrepreneurs
CleanTechies Podcast
We are CleanTechies, the #1 Podcast for ClimateTech Entrepreneurs. Whether you’re an active ClimateTech entrepreneur, an aspiring one, an investor, a service provider…anything that touches supporting early stage climate tech, this is the place for you. Each week, we publish two interviews with leading experts in the field telling their stories, insights, and advice to help ClimateTech Entrepreneurs like you be inspired by their successes and learn from their mistakes. cleantechies.substack.com
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The #1 Podcast for ClimateTech Entrepreneurs
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Latest episode
Jul 3, 2026
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Episodes
#288 Why Your Apartment Building Doesn't Have EV Chargers (And How to Fix It) | Carter Li (SWTCH Energy) 03.07.2026 56:10
#288 Lessons from 25,000 EV Ports: Scaling SWTCH Energy with Carter Li How do you bring EV charging to the millions of renters who don’t have a private driveway or garage? In this episode, Silas Mähner sits down with Carter Li , CEO and Founder of SWTCH Energy , to unpack how they are cracking the hardest puzzle in EV adoption: multi-family housing. Discover how SWTCH bypassed expensive grid upgra...
#287 How to Build a Kick-Ass Sales Team in CleanTech | David Reasenberg, Heliene 18.06.2026 59:00
#287 CleanTechies Pod: David Reasenberg | Heliene | U.S. Solar Manufacturing & Policy-Driven Sales How Heliene is leveraging "commercial curiosity," open-book pricing, and deep policy knowledge to scale a massive domestic solar supply chain. Listen on: Apple Podcasts | Spotify | YouTube | Pocket Casts About This Episode In the world of solar modules, price has become the main factor for many buyer...
#286 A Media Training Expert Gives Away His Most Powerful Secrets for CleanTech Founders | Michael Lehmann (Lehmann's Terms) 03.06.2026 1:04:23
Here is a scannable, engaging show description tailored for your RSS feed based on the episode details: #286 A Media Training Expert Gives Away His Most Powerful Secrets | Michael Lehmann (Lehmann's Terms) In clean tech, building a groundbreaking solution is only half the battle—you also have to know how to explain it clearly when it matters most. Whether you are pitching investors, taking the sta...
#285 CleanTechies Pod: 3D Printed Batteries w/ Robert Bagheri (Sakuu) 20.05.2026 1:03:34
00:00 – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch. 03:27 – Robert’s background: 30+ years in semiconductors to 3D printing batteries. 06:59 – Reinventing additive manufacturing: Printing multi-material active devices. 14:27 – Addressing the 5 battery pillars: Safety, cost, performance, longevity, and recyclability. 20:24 – The economics: Cutting production costs...
#284 CleanTechies Pod: Luke Winston-Almanzar | Reservoir | Smart Water Heaters 06.05.2026 1:04:37
00:00 – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch. 03:19 – The Origin of Reservoir: Why target the water heater? 06:33 – The Data: Why heating water uses more energy than driving an EV. 16:06 – The Innovator's Dilemma: Why legacy appliance companies struggle to innovate beyond incremental updates. 20:20 – Pricing Strategy: How vertical integration allows Reservo...
#283 Reviving the Great American Night Train | Joshua Dominic (Dreamstar Lines) 22.04.2026 1:00:44
00:00 – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch. 03:48 – What is Dreamstar Lines?: Bringing overnight sleeper trains to the LA-SF route. 04:39 – The Strategy: Using existing Union Pacific tracks to bypass the nightmare of building new rail infrastructure. 08:03 – The Bottleneck: Why building new rail in the US is a million-variable problem. 14:38 – Making Trai...
#282 The Real State of CleanTech Hiring & The "Digestion Phase" | Silas Mähner on Keep Cool 15.04.2026 58:27
00:00 – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch. 03:09 – Welcome to Keep Cool: Nick van Osdol flips the script and interviews Silas. 04:07 – The Evolution of Climate Tech: Shedding the 1.0 vibes and returning to "CleanTech." 08:52 – Silas’s Origin Story: From rural Wisconsin to renewable energy recruiting in NYC. 13:33 – Disrupting Recruitment: Why Silas found...
#281 Simplifying Heat Pump Rebates | Samir Pendse (Coral) 01.04.2026 52:45
00:00 – Intro: Coral's $7.5M Seed Round and mission. 02:46 – What is Coral?: The FinTech platform for energy-efficient building upgrades. 04:46 – The Pain Point: Why HVAC experts don't want to be "rebate experts." 06:15 – The Financing Mechanism: How Coral advances funds to make the rebate instant. 08:19 – Contractor Benefits: Saving time, avoiding bad reviews, and winning more deals. 11:44 – The...
#280 Why Every Company Will Decarbonize & The Climate Investment Arbitrage | Andrew Beebe (Obvious Ventures) 18.03.2026 54:00
00:00 – Intro: Andrew Beebe’s background in Cleantech since 2002. 03:34 – Obvious Ventures & Fund V: Deploying a new $360M fund. 04:59 – The Next Vintage: Why the tourists are gone and the real builders remain. 08:23 – The Branding Problem: Why "Climate Tech" mirrors the 1990s Internet boom. 16:30 – Global Markets vs. US Politics: The inevitability of the energy transition. 20:46 – The AI Energy C...
#279 They Lost $189m DOE Grant, but Survived. Learn Why | Cody Finke (Brimstone) 04.03.2026 55:01
00:00 – Intro: Cody Finke returns to the podcast. 04:30 – The "Rock Refinery": Moving beyond cement to co-produce aluminum and critical minerals. 05:39 – The Physics of Scale: Why cost parity is impossible with small reactors. 08:12 – The History of Co-Production: From whale oil to Standard Oil's catalytic cracking. 12:39 – "Bad Geologic Luck": Why traditional limestone cement plants can't co-prod...
#278 How to Sell $500M of Batteries Before You Build a Factory | Landon Mossburg (Peak Energy) 18.02.2026 57:26
00:00 – Intro: The $500M deal with Jupiter Power. 02:15 – Landon’s Background: Lessons from Tesla and Northvolt. 06:30 – The "Magnet Hire": How to attract A-Players by hiring one star first. 12:00 – Why Sodium-Ion?: The cost and supply chain advantage over Lithium. 18:45 – The Jupiter Power Deal: How they negotiated a massive off-take agreement. 24:10 – "Engineering Bankability": Selling the manuf...
#277 The Battery That Lost the EV Race but Could Save the Grid | Antonio Baclig (Inlyte Energy) 11.02.2026 1:03:42
00:00 – Intro: Recording in-person at 9Zero in San Francisco. 02:45 – Antonio’s Background: From Stanford PhD to Flow Batteries. 06:00 – The History: What is the "Zebra Battery" and why did it fail in EVs? 10:15 – The Chemistry: How Sodium, Iron, and Salt work together. 12:30 – The Economics: Why $1/kWh material cost changes everything. 17:00 – Safety First: No thermal runaway and safer than Lithi...
#276 Digitizing The Paperwork Layer of the Energy Transition | Hudson Hollister (HData) 04.02.2026 58:15
00:00 – Intro: Why energy regulation is the "unsexy" bottleneck of the transition. 03:11 – Hudson’s Background: From SEC Attorney to rewriting federal data laws. 05:55 – What HData Does: The platform for rate cases, compliance, and wildfire plans. 06:40 – The Natural Monopoly: Explaining the "Regulator vs. Regulated" conflict. 10:13 – The Rate Case Process: How utilities get paid (and why it takes...
#275 Turning Idle Oil Wells into Gravity Batteries | Kemp Gregory (Renewell Energy) 28.01.2026 49:24
What happens when an oil well dries up? Usually, it becomes a "zombie" liability—leaking methane and waiting to become a taxpayer burden. Kemp Gregory , CEO and Co-founder of Renewell Energy , joins the show to explain how he’s turning these multi-million dollar liabilities into clean energy assets. Renewell converts idle wells into mechanical gravity batteries. By using existing deep wellbores to...
#274 Speed Strapping: The Success Playbook for Hardware CleanTech Startups in 2026 | Shaun Abrahamson (Third Sphere VC) 08.01.2026 1:04:04
Speed Strapping: How to Reach Breakeven on
#273 Tossing Microbes in an Abandoned Oil Well to Make Affordable Hydrogen | Prab Sekhon (Eclipse Energy) 17.12.2025 1:02:34
Eclipse Energy: The $0.50/kg Geologic Hydrogen Breakthrough with Prab Sekhon Prab Sekhon, CEO of Eclipse Energy (formerly Gold H2), joins us to detail their disruptive technology that is poised to solve the green hydrogen cost problem. Eclipse Energy is taking end-of-life oil fields—which are massive liabilities for oil and gas companies—and turning them into clean energy assets by producing Geol...
#272 The Energy Accounting Platform Turning Apartment Rooftops into Revenue Streams | Dover Janis (Ivy Energy) 10.12.2025 1:02:25
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . How Ivy...
#271 The $10 Billion Reason Commercial Real Estate Finally Has to Electrify | Charles Conwell (Novele) 03.12.2025 1:07:09
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Imagine...
#270 - Some Big Announcements + Gratitude for an Amazing 2025 (Happy Thanksgiving) 27.11.2025 9:47
Hey everybody! It’s Thanksgiving week, and I’m shooting a short, solo episode to share some gratitude for an incredible year and drop a few major announcements . Podcast Announcements * Farewell to Somil : Our co-host, Somil, is moving on! He accepted an amazing offer in the fast-growing AI space with Decagon to advance his product management career. We’re sad to see him go, but wish him the best!...
#269 The Unexpected Climate Agents: Why Insurance Companies are Driving Resilient Modular Homebuilding | Vikas Enti (Reframe Systems) 20.11.2025 53:42
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . What hap...
#268 The New Way to do Deep Sea Mining (The Pro Environment Way) | Oliver Gunasekara (Impossible Metals) 12.11.2025 1:04:22
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Hey ever...
#267 Decarbonizing Steel and Disrupting a Commodity Product | Sandeep Nijhawan (Electra) 05.11.2025 1:09:51
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Hey ever...
#266 Can the Grid Survive Climate Change? | Mishal Thadani (Rhizome) 29.10.2025 57:31
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Hey ever...
#265 What is the EU Innovation Fund and Who Can Apply for Funding | Joel Armin-Hoiland (Climate Finance Solutions) 22.10.2025 55:53
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Hey ever...
#264 Climate Week 2025 Recap | Silas Mahner (Cleantechies Podcast) 15.10.2025 20:31
JOIN US FOR THE HACK SUMMIT! The HackSummit returns to Newlab on December 10-11, bringing together 500 founders, funders, and industry leaders in Climate Deep Tech. Together we’ll explore abundance, alongside Founders and Investors at Andreessen Horowitz, Brimstone, Crux, DCVC, Durin, Earth AI, Endolith, Navier, Radical AI, Rainmaker, Voyager Ventures and SOSV . Sign up for 10% off here . Silas he...
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