CleanTechies Podcast
CleanTechies Podcast

CleanTechies Podcast

The #1 Podcast for ClimateTech Entrepreneurs

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Episodes

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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

Recent Episodes

#284 CleanTechies Pod: Luke Winston-Almanzar | Reservoir | Smart Water Heaters
MAY 6, 2026
#284 CleanTechies Pod: Luke Winston-Almanzar | Reservoir | Smart Water Heaters
<p><strong>00:00</strong> – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch.</p><p><strong>03:19</strong> – The Origin of Reservoir: Why target the water heater?</p><p><strong>06:33</strong> – The Data: Why heating water uses more energy than driving an EV.</p><p><strong>16:06</strong> – The Innovator's Dilemma: Why legacy appliance companies struggle to innovate beyond incremental updates.</p><p><strong>20:20</strong> – Pricing Strategy: How vertical integration allows Reservoir to stay cost-competitive while offering a premium product.</p><p><strong>25:16</strong> – Smart Features: Predictive recirculation (no-wait showers), freeze protection, and leak mitigation.</p><p><strong>36:08</strong> – "Party Mode": How an inline booster heater gives a 50-gallon tank the capacity of a 150-gallon tank.</p><p><strong>40:58</strong> – The Faucet Remote Control: Using an ultrasonic flow meter to operate your water heater by simply tapping your sink faucet.</p><p><strong>44:24</strong> – Building a Hardware Team: The Formlabs Mafia and why every startup employee needs the "take out the trash" mentality.</p><p><strong>49:56</strong> – Thermal Batteries & VPPs: How connecting 50,000 smart water heaters equals the capacity of a data center.</p> <br/><br/>This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit <a href="https://cleantechies.substack.com/subscribe?utm_medium=podcast&#38;utm_campaign=CTA_2">cleantechies.substack.com/subscribe</a>
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64 MIN
#283 Reviving the Great American Night Train | Joshua Dominic (Dreamstar Lines)
APR 22, 2026
#283 Reviving the Great American Night Train | Joshua Dominic (Dreamstar Lines)
<p><strong>00:00</strong> – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch.</p><p><strong>03:48</strong> – What is Dreamstar Lines?: Bringing overnight sleeper trains to the LA-SF route.</p><p><strong>04:39</strong> – The Strategy: Using existing Union Pacific tracks to bypass the nightmare of building new rail infrastructure.</p><p><strong>08:03</strong> – The Bottleneck: Why building new rail in the US is a million-variable problem.</p><p><strong>14:38</strong> – Making Trains Sexy: Why you must start with a premium product to change consumer behavior (The Tesla Model).</p><p><strong>26:29</strong> – Customer Discovery: Why they added an auto-ferry service and pet-friendly private accommodations.</p><p><strong>31:28</strong> – The Autonomous Future: How Robotaxi fleets will solve the last-mile problem for train travelers.</p><p><strong>39:40</strong> – Regulation vs. Innovation: Why the US needs a new generation of "builder" legislators.</p><p><strong>46:52</strong> – Zoning is Anti-American: The housing crisis and the case for creating special economic zones for experimentation.</p><p><strong>55:09</strong> – Sustainability: The carbon emissions of rail vs. flying, and the future of hybridized rail tech.</p> <br/><br/>This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit <a href="https://cleantechies.substack.com/subscribe?utm_medium=podcast&#38;utm_campaign=CTA_2">cleantechies.substack.com/subscribe</a>
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60 MIN
#282 The Real State of CleanTech Hiring & The "Digestion Phase" | Silas Mähner on Keep Cool
APR 15, 2026
#282 The Real State of CleanTech Hiring & The "Digestion Phase" | Silas Mähner on Keep Cool
<p><strong>00:00</strong> – Intro & Sponsors: Lehmann's Terms, Climate Finance Solutions, and EarthSearch.</p><p><strong>03:09</strong> – Welcome to Keep Cool: Nick van Osdol flips the script and interviews Silas.</p><p><strong>04:07</strong> – The Evolution of Climate Tech: Shedding the 1.0 vibes and returning to "CleanTech."</p><p><strong>08:52</strong> – Silas’s Origin Story: From rural Wisconsin to renewable energy recruiting in NYC.</p><p><strong>13:33</strong> – Disrupting Recruitment: Why Silas founded EarthSearch to offer executive-level search for early-stage startups without the massive fees.</p><p><strong>18:30</strong> – The End of ZIRP: Why the hiring market has shifted to slow, intentional, and skills-based recruiting.</p><p><strong>30:24</strong> – Building Culture: Why early-stage startups shouldn't be afraid to hire bored, senior talent.</p><p><strong>37:19</strong> – The Call to Adventure: How to position your startup to attract highly motivated individuals.</p><p><strong>43:59</strong> – Companies to Watch: Silas shouts out Helix Earth Technologies and OptiGrid.</p><p><strong>51:35</strong> – Flipping the Table: Silas asks Nick what keeps him motivated to write and podcast about climate.</p><p><strong>53:56</strong> – The Value of Writing: Why authentic, human storytelling matters more than ever in the age of AI.</p> <br/><br/>This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit <a href="https://cleantechies.substack.com/subscribe?utm_medium=podcast&#38;utm_campaign=CTA_2">cleantechies.substack.com/subscribe</a>
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58 MIN
#281 Simplifying Heat Pump Rebates | Samir Pendse (Coral)
APR 1, 2026
#281 Simplifying Heat Pump Rebates | Samir Pendse (Coral)
<p><strong>00:00</strong> – Intro: Coral's $7.5M Seed Round and mission.</p><p><strong>02:46</strong> – What is Coral?: The FinTech platform for energy-efficient building upgrades.</p><p><strong>04:46</strong> – The Pain Point: Why HVAC experts don't want to be "rebate experts."</p><p><strong>06:15</strong> – The Financing Mechanism: How Coral advances funds to make the rebate instant.</p><p><strong>08:19</strong> – Contractor Benefits: Saving time, avoiding bad reviews, and winning more deals.</p><p><strong>11:44</strong> – The Economics of Rebates: Why most incentives come from local utilities trying to lower grid demand.</p><p><strong>15:43</strong> – The Origin Story: Quitting jobs to solve the $8,000 savings bottleneck for homeowners.</p><p><strong>21:00</strong> – Mission Alignment: Balancing climate goals with helping small businesses grow.</p><p><strong>24:17</strong> – The "Chicken and Egg" Funding: Using early VC dollars to prove the rebate float model.</p><p><strong>31:24</strong> – Depoliticizing Clean Tech: Leading with comfort, safety, and pure energy savings.</p><p><strong>36:09</strong> – Co-Founder Dating: How Samir and Nizar built trust before building a company.</p><p><strong>42:37</strong> – Pragmatism and Empathy: Why climate founders must be chameleons to succeed.</p><p><strong>46:27</strong> – Raising Capital: Why they pitched FinTech VCs instead of traditional Climate funds.</p> <br/><br/>This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit <a href="https://cleantechies.substack.com/subscribe?utm_medium=podcast&#38;utm_campaign=CTA_2">cleantechies.substack.com/subscribe</a>
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52 MIN
#280 Why Every Company Will Decarbonize & The Climate Investment Arbitrage | Andrew Beebe (Obvious Ventures)
MAR 18, 2026
#280 Why Every Company Will Decarbonize & The Climate Investment Arbitrage | Andrew Beebe (Obvious Ventures)
<p><strong>00:00</strong> – Intro: Andrew Beebe’s background in Cleantech since 2002.</p><p><strong>03:34</strong> – Obvious Ventures & Fund V: Deploying a new $360M fund.</p><p><strong>04:59</strong> – The Next Vintage: Why the tourists are gone and the real builders remain.</p><p><strong>08:23</strong> – The Branding Problem: Why "Climate Tech" mirrors the 1990s Internet boom.</p><p><strong>16:30</strong> – Global Markets vs. US Politics: The inevitability of the energy transition.</p><p><strong>20:46</strong> – The AI Energy Crisis: Utilities facing 50% demand growth from data centers.</p><p><strong>25:53</strong> – Generative Science: How AI is accelerating materials science and geothermal exploration.</p><p><strong>28:20</strong> – Local Politics: Why hyperscalers must win over local communities to build.</p><p><strong>34:01</strong> – Texas as a Mecca: Why low-regulation red states are building the most clean energy.</p><p><strong>38:56</strong> – Physical AI & Autonomy: From robotic shipping vessels to electric aviation.</p><p><strong>47:01</strong> – The Hardware Playbook: Why you want to be a buyer (not a seller) on a plummeting cost curve.</p><p><strong>51:50</strong> – The Ultimate Arbitrage: Making money when you know the transition is inevitable.</p> <br/><br/>This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit <a href="https://cleantechies.substack.com/subscribe?utm_medium=podcast&#38;utm_campaign=CTA_2">cleantechies.substack.com/subscribe</a>
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54 MIN