Episode Summary
Executive Summary: The episode features Paul Gross, CEO/co-founder of Remora, discussing a mobile carbon capture system that retrofits onto semi-trucks to capture at least 80% of tailpipe emissions and sell the CO2 to buyers like concrete producers. The conversation covers the company’s origin, technical approach, market focus on long-haul trucking, early customer traction, logistics and policy needs, and why distributed carbon capture may scale faster than traditional point-source solutions.
Main Topics: Remora’s mobile carbon capture solution (Priority: 5/5): Paul explains the retrofit device that mounts between tractor and trailer, captures truck exhaust CO2, and offloads it for resale, creating both emissions reductions and a revenue stream. Founding story and team formation (Priority: 5/5): Paul describes how early climate interest, a chance discovery of Christina’s PhD research, and outreach to mechanical engineering professors led to assembling a founding team with deep domain expertise. Why long-haul trucking is a hard-to-electrify segment (Priority: 5/5): The discussion focuses on battery weight, payload limits, and energy density constraints that make long-distance trucking a poor fit for batteries in the near term. Market segmentation and customer targeting (Priority: 4/5): Paul outlines the trucking market segments and explains that Remora is targeting long-haul fleets, especially large public-facing companies and major trucking firms with climate commitments. Product development, pilots, and operational logistics (Priority: 4/5): The episode covers prototype testing, planned pilots on customer trucks, CO2 offloading workflow, and the logistics of transporting and selling captured CO2. Policy, incentives, and scaling constraints (Priority: 4/5): Paul highlights the importance of 45Q tax credits, weight exemptions, and CO2 infrastructure, while stressing the company can still succeed without policy support. Entrepreneurship lessons and advice (Priority: 3/5): Paul argues that hard climate startups attract help, recommends finding a domain expert co-founder, and encourages aspiring founders to tackle ambitious problems.
Key Arguments: Remora’s technology can reduce truck emissions by at least 80% while preserving payload, range, and trip time, making it a practical retrofit solution for existing fleets. Long-haul trucking is one of the hardest transportation segments to electrify because battery weight consumes too much payload capacity and creates a negative weight spiral. A retrofit approach is faster and more scalable than replacing the entire truck fleet with new electric trucks. The most immediate customer motivation is climate commitment compliance and brand/value-chain pressure, not revenue generation from CO2 sales. Distributed carbon capture can scale faster than point-source capture because the same modular system can be mass-produced and deployed across many trucks. The biggest near-term challenge is logistics: offloading, transporting, and selling CO2 while ensuring the emissions benefit is preserved. Policy is helpful but not required; Remora’s core value proposition stands on technology plus market demand. Strong domain expertise and ambitious problem selection can offset a founder’s lack of initial experience in a sector.
Data Points: MCJ membership community size: 1,300+ members - Jason describes the MyClimate Journey Slack community that grew from the podcast audience. Trucking share of U.S. goods movement: 70% - Jason explains why semi-trucks are a major emissions target. U.S. greenhouse gas pollution from heavy-duty trucking: more than 7% - Used to frame the climate importance of trucking emissions. Capture rate: at least 80% - Paul describes the current performance target of the Remora device. Target capture improvement: 70–80% now; 99%+ over time - Paul discusses optimization goals before and after pilots. Truck weight limit: 80,000 pounds - Used to explain why battery packs are difficult for long-haul trucking. Payload capacity consumed by batteries: 25% - Paul estimates how much capacity batteries could take on a truck. Truck market size: $800 billion - Paul characterizes the trucking market as massive and fragmented. Remora customer pilots: 7 paid pilots - Paul says the company signed seven large-company customers after YC. Company type size: two of the Fortune 10 - Large public-facing companies with private fleets are initial targets. Large trucking customers: three of the largest trucking companies in the country - Paul cites major trucking firms as early partners. Founding research duration: 7 years - Paul says Christina’s PhD research on mobile carbon capture underpins the company. Timeline to first customer units: by October - Paul says first pilot units will be delivered later in the year. CO2 market size: $7.7 billion - Paul describes the current carbon dioxide market. Annual CO2 use: 230 million tons per year - Paul cites industrial uses of CO2 across sectors. Revenue share: 50-50 - Remora shares captured CO2 revenue with truck owners.
Pivotal Quotes: "“What I've heard is it's almost all the former: the brand halo, the reducing emissions, meeting climate commitments...”" — Paul Gross: Paul explains that customer demand is driven primarily by climate goals and stakeholder pressure, not by the upside of CO2 revenue. "“I would make the changes to the 45Q. I knew you were going to say that.”" — Paul Gross: Paul identifies the most important external policy change that would accelerate deployment. "“Go do something hard.”" — Paul Gross: Paul’s closing advice to aspiring founders about choosing ambitious climate problems.
Implications: The episode suggests near-term decarbonization in hard-to-electrify freight may come from retrofit and distributed capture models, not only electrification. Success will depend on proving reliability, solving CO2 logistics, and aligning policy and buyers around scalable sequestration.