The Climate Tech Podcast with Fexingo: Energy, Sustainability, and Decarbonization Companies

Sustainable aviation fuel is expensive and scarce, so companies are using a system called 'book-and-claim' to claim emission reductions without ever pumping the fuel into a plane. We break down how it works, why Delta, Microsoft, and the Sustainable Aviation Buyers Alliance are betting on it, and the key controversy about double counting. This episode explains the mechanics behind corporate SAF certificates and what they mean for the airlines' net-zero promises.

#SustainableAviationFuel #BookAndClaim #ClimateTech #CarbonCredits #CorporateSustainability #AviationDecarbonization #SAF #BusinessTravel #CarbonAccounting #VoluntaryCarbonMarket #DeltaAirLines #Microsoft #NetZero #ClimateAction #GreenwashingRisk #RegulatoryFrameworks #FexingoBusiness #BusinessPodcast

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Steel production accounts for roughly 7% of global carbon emissions, more than all the world's cars combined. This episode digs into the startups trying to clean up steelmaking — the technology behind green hydrogen-based direct reduced iron, the molten oxide electrolysis approach from Boston Metal, and the race to scale. We look at why cost remains the biggest barrier, how regulatory pressure in Europe is creating a market, and whether 2030 targets for near-zero-emission steel are realistic. Featuring specific numbers on capital investment, pilot plant timelines, and the role of green hydrogen infrastructure.

#GreenSteel #ClimateTech #Decarbonization #Sustainability #IndustrialEmissions #Hydrogen #BostonMetal #H2GreenSteel #Steelmaking #CleanTech #Business #Technology #Podcast #FexingoBusiness #BusinessPodcast #ClimateAction #Manufacturing #Innovation

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In this episode of The Climate Tech Podcast, Lucas and Luna explore how small modular reactors (SMRs) are reshaping the nuclear energy landscape. They dive into NuScale Power's 77-megawatt reactor design, the first to receive US regulatory approval in 2022 and now heading for its debut at Idaho National Laboratory by 2029. Lucas breaks down the passive safety features that eliminate meltdown risks and the factory-built construction that promises to cut costs and construction time. Luna questions whether the economics truly stack up against renewables and natural gas, how SMRs handle nuclear waste, and what other startups like TerraPower are doing with novel reactor designs. The conversation balances optimism with pragmatism, noting that while SMRs could provide reliable, carbon-free baseload power, they face stiff competition from falling battery prices and natural gas. For anyone tracking the energy transition, this episode offers a grounded look at one of the most debated technologies in climate tech.

#ClimateTech #NuclearEnergy #SmallModularReactors #NuScale #TerraPower #CleanEnergy #Decarbonization #BaseloadPower #EnergyTransition #Business #Technology #Innovation #FexingoBusiness #BusinessPodcast #NuclearReactor #GridStability #PassiveSafety #FactoryBuilt

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In this episode, Lucas and Luna explore the emerging climate tech of enhanced rock weathering (ERW). They focus on Lithos Carbon, a startup that just raised a $50 million Series B to spread crushed basalt on farmland, accelerating a natural process that locks away CO2 for millennia. The hosts break down how ERW works, why it's attracting investment from groups like Shopify's sustainability fund, and the tough challenge of measuring carbon removal at scale. They also discuss the benefits for soil health and the tricky economics for farmers. A specific look at a low-tech but high-impact climate solution that's quietly scaling across the Midwest in mid-2026.

#EnhancedRockWeathering #LithosCarbon #CarbonRemoval #ClimateTech #DirectAirCapture #CarbonCredits #RegenerativeAgriculture #Basalt #SoilHealth #CO2Sequestration #Cleantech #Sustainability #Shopify #SeriesB #ThunderbirdEGS #ClimateTechPodcast #BusinessAndTechnology #FexingoBusiness

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By 2026, the first wave of electric vehicle batteries is reaching retirement age, creating both a waste crisis and a massive resource opportunity. In this episode, Lucas and Luna explore how startups like Redwood Materials are turning spent EV batteries back into cathode materials with over 90% recovery rates. They break down the pyrometallurgical vs. hydrometallurgical debate, the economics of recycling vs. mining, and why battery recycling could slash lithium-ion battery costs by 20% within a decade. Plus: why the Inflation Reduction Act's domestic sourcing rules are supercharging this industry. Featuring concrete numbers from the National Renewable Energy Lab and a tour of Redwood's Nevada facility.

#BatteryRecycling #RedwoodMaterials #LithiumIon #EVBatteries #CircularEconomy #CriticalMinerals #Hydrometallurgy #Pyrometallurgy #InflationReductionAct #ClimateTech #EnergyStorage #Sustainability #BusinessAndTechnology #FexingoBusiness #BusinessPodcast #GreenTech #SupplyChain #WasteToResource

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In this episode of The Climate Tech Podcast, Lucas and Luna explore a surprisingly simple yet powerful climate solution: capturing the waste heat from data centers to warm homes and businesses. They start with a concrete example from Helsinki, where a new data park will eventually heat over 40,000 homes using excess heat from servers. Lucas breaks down the thermodynamics—data centers run hot, and that heat has to go somewhere—and explains how startups like Heata and Qarnot are turning cooling challenges into revenue streams. Luna questions the economics: retrofitting heat pumps and piping isn't cheap, but Lucas shows how long-term energy savings and carbon credits make the math work. They also discuss the looming hurdle: locating data centers near residential districts and the role of district heating networks. The episode closes with a look at what this means for the broader energy transition, including how tech giants like Google and Microsoft are experimenting with similar systems in their new campuses. If you've ever wondered whether your cloud storage is keeping someone's living room warm, this one's for you.

#WasteHeat #DataCenters #DistrictHeating #EnergyEfficiency #ClimateTech #Sustainability #Decarbonization #Heata #Qarnot #Helsinki #Google #Microsoft #HeatRecovery #GreenTech #BusinessAndTechnology #FexingoBusiness #BusinessPodcast #ClimatePodcast

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Episode 129 of The Climate Tech Podcast explores a surprising new source of sustainable aviation fuel: methane from dairy farms. Lucas and Luna break down the process — from cow manure to captured biogas to synthesized kerosene — and examine a specific project in the Midwest that's turning 200,000 tons of dairy waste annually into low-carbon jet fuel. They discuss the economics, the role of federal incentives under the Inflation Reduction Act, and whether this model can scale beyond the dairy belt. The episode also touches on the lifecycle emissions math that makes this fuel potentially carbon-negative, and the skepticism from environmental groups about locking in livestock infrastructure. A focused, number-driven look at one of the more unexpected intersections of agriculture and aviation decarbonization.

#SustainableAviationFuel #RenewableNaturalGas #DairyWaste #MethaneCapture #Biogas #CarbonNegative #InflationReductionAct #CleanEnergy #AviationDecarbonization #ClimateTech #WasteToFuel #RenewableFuelStandard #Midwest #LucasAndLuna #FexingoBusiness #BusinessPodcast #Podcast #ClimateAction

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Episode 128 of The Climate Tech Podcast. Lucas and Luna examine the rise of direct lithium extraction, a technology that promises to pull lithium from brine without the massive evaporation ponds and environmental damage of conventional mining. They focus on a single startup, Lilac Solutions, which has raised over $500 million and is now deploying its ion-exchange beads at sites in Argentina, California, and Utah. The hosts unpack why the industry is desperate for an alternative to Australian hard-rock mining and South American evaporation, how Lilac's technology actually works at the molecular level, and why automakers like General Motors and Stellantis are signing direct offtake deals. The episode ends with a critical look at the open question: can DLE scale fast enough to meet projected battery demand without creating new environmental problems of its own?

#DirectLithiumExtraction #LilacSolutions #Lithium #EVBatteries #ClimateTech #CleanEnergy #Mining #IonExchange #Brine #CriticalMinerals #BatterySupplyChain #GreenTech #Sustainability #BusinessAndTechnology #FexingoBusiness #BusinessPodcast #ClimateTechPodcast #EnergyTransition

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Episode 127 of The Climate Tech Podcast explores a surprising pairing: solar energy and community land trusts. Lucas and Luna examine how a model designed to preserve affordable housing is now being used to finance rooftop solar for low-income neighborhoods. They walk through a specific case in Denver, Colorado, where a land trust helped a 40-unit apartment building install a 120-kilowatt solar array, cutting residents' electric bills by 30% while generating steady returns for the trust. The hosts unpack the financial mechanics—how tax credits, grants, and power-purchase agreements make the math work—and discuss why this approach is gaining traction in cities from Minneapolis to Oakland. They also consider the limits: the model requires patient capital and strong community partnerships. No hype, just a clear look at how one policy tool is quietly decarbonizing housing for people who need it most.

#CommunityLandTrusts #SolarEnergy #AffordableHousing #EnergyJustice #Decarbonization #RooftopSolar #Denver #PowerPurchaseAgreements #ClimateTech #GreenFinance #RenewableEnergy #LowIncomeCommunities #HousingPolicy #SolarTaxCredits #EnergyBurden #NetZeroHousing #FexingoBusiness #BusinessPodcast

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Episode 126 explores the rise of virtual power plants (VPPs) — networks of distributed energy resources like home batteries, smart thermostats, and electric vehicle chargers that utilities can dispatch to balance the grid. Lucas breaks down how Tesla's Autobidder platform and Sunrun's partnership with PG&E are turning thousands of small devices into a single, controllable resource. He explains the economics: VPPs can cost 40-60% less than building a new natural gas peaker plant, and they're already operating in California, Texas, and parts of Europe. Luna questions the regulatory hurdles and whether consumers really sign up in large numbers. The hosts also touch on a recent rulemaking at FERC that could open wholesale markets to aggregated distributed resources. This episode is for anyone who owns a smart thermostat or is considering a home battery and wonders how those devices might earn money while helping keep the lights on.

#VirtualPowerPlants #VPP #Tesla #Sunrun #PG&E #FERC #DistributedEnergy #HomeBatteries #SmartThermostats #DemandResponse #GridReliability #CleanEnergy #EnergyStorage #BusinessPodcast #FexingoBusiness #ClimateTech #BusinessAndTechnology #EnergyTransition

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