39:10 Jun 5, 2026
Can Desalination Solve Water Scarcity? | Sachin Nair, CEO @ Hydron
Sachin Nair says every oil well produces four to five times more water than oil, and Hydron is building the technology to treat it withou...
All Episodes
48 conversations with the founders, investors, and scientists building the energy transition. Newest first.
39:10 
45:10 Jun 2, 2026
A New Approach to Energy Storage | Thomas Nann, Founder & CEO @ Allegro Energy
Thomas Nann built Allegro Energy's flow battery platform from a microemulsion electrolyte discovery, then had to abandon their first prod...
28:39 May 21, 2026
The Energy Industry Still Runs on Excel | Alon Mashkovich, CEO & Co-Founder @ enSights
Alon Mashkovich built enSights after watching billion-dollar renewable portfolios still run on Excel and CSVs in 2018.
50:00 May 18, 2026
How CleanTech Companies Build Scalable Growth Systems Eben Meyer, CEO @ CleanTech Growth Lab
Eben Meyer shows why up to 62% of B2B ad spend reaches audiences who can never buy your product.
54:40 May 11, 2026
How Battery Storage Is Changing the Grid | Alex Shoer, Managing Partner @ GridVest
Alex Shoer explains why the commercial and industrial battery storage market is structurally broken and what GridVest is doing to fix it.
43:44 May 4, 2026
Why Solar Needs to Change | Michael Fakukakis, Founder & CEO @ Mechatron Solar Inc
Michael Fakukakis built a gearless solar tracker that produces 60% more power than fixed panels, and the hardest part was never the physics.
41:18 Apr 28, 2026
The Hidden Signals Driving CleanTech Sales | Eben Meyer, CEO @ CleanTech Growth Lab
Eben Meyer shows how an EPA enforcement notice beats a hiring signal every time for cleantech sales teams.
37:31 Apr 27, 2026
This Algae Tech Could Replace Wastewater Treatment | Martin Gross, CEO @ GWT
Martin Gross turned a lost oil-industry job in 2016 into GWT, which now uses algae to replace chemicals and bacteria in wastewater treatm...
35:53 Apr 14, 2026
Scaling CleanTech with Eben Meyer, CEO @ CleanTech Growth Lab
Eben Meyer argues CAC is structurally higher in cleantech than any other B2B category, and explains exactly why.
44:05 Apr 6, 2026
The Energy Transition with Emily Grubert, Associate Professor @ University of Notre Dame
Emily Grubert argues the energy transition is not actually happening because no one has committed to making it happen.
35:55 Mar 30, 2026
Building Nature Tech Communities with Paige Perillat-Piratoine, Nature Tech Collective
Paige Perillat-Piratoine built community across army bases, COVID hackathons, and a hygroscopic electricity startup before landing at Nat...
37:57 Mar 16, 2026
Water as a Service with Juan Pablo Rivero, CEO & Founder @ Hydrous Management Group
Juan Pablo Rivero argues companies can recycle and reuse water on-site with zero upfront capital, treating water the way solar treats ele...
36:44 Mar 10, 2026
Smarter Desalination with Arian Edalat, Founder & CEO @ Active Membranes
Arian Edalat's electrically conductive membranes can self-adjust in real time, targeting a market expansion from $3 billion to $300 billion.
41:48 Mar 10, 2026
Purifying Water with Greg Newbloom, CEO @ Membrion
Greg Newbloom built Membrion's ceramic desalination membrane by walking away from two failed startups first.
39:03 Mar 10, 2026
Sustainable Change with Dr. Jacqueline Kerr, Founder @ Leading Real Change
Dr. Jacqueline Kerr argues that science alone never moves policy makers, but their own constituents reliably do.
46:50 Mar 10, 2026
120-Day Fresh Meat with Gaurav & Anat Tewari (Tewari De-Ox Systems)
Gaurav and Anat Tewari claim their Zero Ox Tech gives retail-ready meat cuts a 120-day shelf life, eliminating a $3 billion annual indust...
51:41 Mar 3, 2026
Betting on Water with Steve Kloos, Partner @ Burnt Island Ventures
Steve Kloos maps a $1.6 trillion water sector and explains why flood forecasting startup Provisico is crushing it.
38:41 Mar 2, 2026
The Shrimp Revolution with Daniel Russek, Founder & CEO @ Atarraya
Daniel Russek built Atarraya over 17 years to prove shrimp farming can close its nitrogen loop without poisoning the ocean.
59:21 Feb 23, 2026
Earth & Water Tech with Sunena Gupta, Associate @ CleanTech Group
Sunena Gupta explains why raw satellite data is becoming worthless without the analytics layer built on top of it.
1:05:37 Feb 23, 2026
Energy & AI with Zainab Gilani, Research Associate @ CleanTech Group
Zainab Gilani's two-bucket framework for energy and power makes data center demand and China's battery leadership suddenly legible.
50:44 Feb 23, 2026
Building Climate Startups with Serena Dao, Climate Tech Operator & Writer
Serena Dao spent years at pre-seed to Series C climate hardware startups before the Engine, and argues carbon capture only survives if it...
55:49 Feb 19, 2026
Critical Minerals & Recycling with Diana Rasner, Group Lead @ CleanTech Group
Diana Rasner explains why China's dominance in mineral refining took 50 years to build and why ore grades are now the mining industry's s...
43:01 Feb 19, 2026
Building Sustainably with Nathan Silvernail, CEO @ Plantd
Nathan Silvernail left SpaceX in 2021 to invent a carbon-negative wood substitute that grows from biomass, not trees.
44:33 Feb 19, 2026
Telling Climate with Eric Fischgrund, Founder & CEO @ FischTank PR
Eric Fischgrund built FischTank PR to 26 employees over 12 years by treating media relations as a craft, not a mail-merge automation.
36:09 Feb 19, 2026
Farming, Finance & Biochar with Aukrit Unahalekhaka, Co-Founder & CEO @ Ricult
Aukrit Unahalekhaka built a million-farmer AgTech platform in Thailand, then walked away to bet on biochar.
1:08:01 Feb 9, 2026
Clean Tech Trends with Anthony DeOrsey, Research Manager @ CleanTech Group
Anthony DeOrsey explains why China's EV market grew from dozens to hundreds of companies before most collapsed, and what the US misreads...
56:10 Feb 9, 2026
Kelp Economy with Majid Hajibeigy, Ecopreneur @ Canadian Pacifico Seaweeds
Majid Hajibeigy explains why every solo kelp farmer burns out and why aggregation is the only path to a real industry.
44:26 Feb 4, 2026
AI for Utilities with Vik Chaudhry, Co-Founder & CTO @ Buzz Solutions
Vik Chaudhry beat GE and ABB in a 2021 New York Power Authority RFP by spending three years building AI models before talking revenue.
51:03 Jan 20, 2026
Water, Risk & Climate Capital with John Robinson, Partner @ Mazarine Climate
John Robinson, after 17 years in water and wastewater, argues the industry's biggest obstacle is that everyone already thinks they unders...
1:15:48 Jan 19, 2026
Nuclear Reality Check with Yangbo Du, Entrepreneur and Innovation Lead @ Innovo
Yangbo Du traces how 48 U.S. utilities bankrupted themselves chasing bespoke reactor designs, and why that still shapes nuclear's odds to...
45:56 Jan 14, 2026
Unlocking Grid Interconnection with Emily Moini, Product Manager @ Nira Energy
Emily Moini explains why transmission planning, one of NERC's 14 reliability categories, is the silent bottleneck for every new solar and...
1:16:00 Dec 22, 2025
Backing the Planet with Hampus Jakobsson, General Partner @ Pale Blue Dot
Hampus Jakobsson of Pale Blue Dot argues the planet's inefficient 'operating system' is the largest investable opportunity humanity has e...
42:28 Dec 15, 2025
Low Flow, Big Impact with Russell Schindler, Founder & CEO @ SampleServe
Russell Schindler turned a Michigan regulatory change in 2001 into a software company by listening to customers who wanted the tool, not...
35:58 Dec 15, 2025
Water Tech Breakthroughs with Nili Persits, Founder & CEO @ Dottir Labs
Nili Persits shrunk a $100,000 refrigerator-sized Raman spectroscopy sensor to cell-phone scale to put real-time water monitoring within...
34:40 Dec 9, 2025
Climate Adaptation with Louie Woodall, Founder @ Climate Proof
Louie Woodall argues climate adaptation is the unavoidable reality most climate media is still choosing not to look at directly.
52:15 Dec 8, 2025
The Future of Nuclear Energy with Rod Adams, Managing Partner @ Nucleation Capital
Rod Adams founded a small modular reactor company in 1993, decades before the term 'SMR' entered mainstream climate discourse.
46:58 Dec 8, 2025
Climate Science with Dr Elizabeth Whitney, Biogeochemist @ NOAA National Ocean Service
Dr. Liz Whitney's PhD compared carbon movement across forest, agricultural, and urban coastal sites in the mid-Atlantic, where sea level...
33:22 Dec 8, 2025
Carbon Recycling with Freya Burton, CSO @ LanzaTech
Freya Burton turned steel mill pollution into ethanol, proving a 'biologically impossible' process commercial by 2018.
40:49 Dec 4, 2025
Navigating False Summits with Ben Silton, CEO @ TrelliSense
Ben Silton built TrelliSense's laser-based methane tracking by treating every sales call and forklift shift as founder training.
39:52 Dec 4, 2025
Bio-Industrial Innovation with Sophia Xu, Co-Founder & CSO @ Carbon Bridge
Sophia Xu's Carbon Bridge makes microbes 500% more productive by solving a physics problem, not a biology one.
46:50 Nov 25, 2025
Entrepreneurship Unfiltered with Celine King, Founder & CEO @ GreenIRR Inc.
Celine King founded GreenIRR at 20 and argues the startup narrative hides the emotional cost that actually determines who survives.
45:01 Nov 25, 2025
Mastering Startup Pivots with Jimmy Chiu, Co-Founder & CTO @ Loop CO2
Jimmy Chiu turned a $1.9M DOE grant into Loop CO2's first 20-liter CO2-to-polyester reactor, scaling chemistry that sat dormant for 40 ye...
48:37 Nov 20, 2025
Regeneration and Innovation with Rob Avis, Co-Founder and Chief Engineering Officer at 5th World
Rob Avis built 5th World after teaching 10,000 people permaculture, arguing beavers increase biodiversity 28x and humans can too.
38:34 Nov 20, 2025
Climate Entrepreneurship with Ben Soltoff, Ecosystem Builder & Entrepreneur in Residence @ MIT
Ben Soltoff's MIT book on climate entrepreneurship argues startups are one route to impact, not the only one.
36:20 Nov 20, 2025
Clean Air Innovation with Austin Riesenberger, Founder @ SWERV
Austin Riesenberger built SWERV's first five ERV units for $2,000 total, then turned down a Hawaii relocation to keep the company.
32:14 Nov 20, 2025
Turning Waste into Value with Mo Balapour, CEO & Co-Founder @ SusMaX
Mo Balapour turned a Drexel PhD project on coal ash into SusMaX, a company recycling landfill waste into construction aggregate.
34:56 Nov 19, 2025
The E-Waste Vision with Agabas Agudor, Founder @ AppCyclers
Agabas Agudor built AppCyclers from a 2019 hackathon with no e-waste knowledge into a nine-person AI marketplace connecting Ghana's infor...
36:17 Nov 19, 2025
Rethinking Water with Quantum Wei, Founder @ Harmony Desalting
Quantum Wei built Harmony Desalting's first prototype over a year of trial and error, then validated it at a 2019 conference in New Orleans.