Episode Summary
Executive Summary: Live from a San Francisco MCJ meetup, Jason Jacobs moderates a candid conversation with cleantech veterans Shail Khan and Abe Yokel about the first wave of climate-tech investing, what went wrong, what went right, and what lessons matter for the current surge of capital and talent. The panel stresses disciplined venture fit, strong path-to-market, and building connective tissue across a fragmented ecosystem.
Main Topics: First-wave cleantech boom, bust, and recovery (Priority: 5/5): The guests reflect on the 2006-2008 cleantech wave, the hype cycle, the collapse after bad bets in thin-film solar and biofuels, and how the sector slowly rebuilt credibility and talent afterward. Lessons for today’s climate-tech investors (Priority: 5/5): Both speakers argue that the current wave is different but still requires discipline: use venture only where it fits, understand capital needs across stages, and avoid repeating mistakes from the last cycle. Path to market and capital stack matter (Priority: 5/5): Abe emphasizes that startups must understand channel conflict, customer incentives, and how later financing rounds will work, while Shail highlights that some technologies need non-venture capital or different funding structures. Why this cycle feels different (Priority: 4/5): Shail says climate change is more acute, consumers care more, and data/connected devices make solutions more feasible. He cautions against overgeneralizing from the first wave because market conditions have changed materially. Where the white spaces are (Priority: 4/5): Audience Q&A explores underbuilt opportunities: commercial and industrial decarbonization, corporate sustainability tools, ESG capital allocation, consumer behavior change, circularity, food/ag, and grid-edge flexibility. Building connective tissue and community (Priority: 4/5): The panel argues for more coordination across veterans, newcomers, researchers, operators, founders, and investors. They praise MCJ as a knowledge and network hub but say much more infrastructure is needed. How newcomers can get oriented (Priority: 3/5): Advice includes reading broadly, listening to podcasts, attending events, asking for help, and matching personal skills to specific climate problems rather than trying to master everything at once.
Key Arguments: The first cleantech wave concentrated too much capital into thin-film solar and biofuels, and those macro-bets proved wrong, causing the sector to lose attention and momentum. Despite the bust, many important companies were built in that era, including Tesla, Nest, Sunrun, SolarCity, Enphase, and SolarEdge, showing that the category as a whole was not a failure. The venture model only works for some climate companies; if a technology requires too much upfront capital or too long a validation cycle, it may need a different funding source or structure. Understanding the full capital stack is essential in climate tech because seed funding alone is insufficient if Series A/B/C capital is absent. Shail argues that today’s climate moment is stronger than the first wave because climate impacts are more visible, consumers are more engaged, and the enabling technology stack is better. Abe argues that startup founders must think carefully about channel conflict and value-chain incentives; distribution can kill otherwise good products. The biggest emerging opportunities include helping commercial and industrial customers decarbonize, serving corporate sustainability commitments, and matching ESG capital to real climate assets. The ecosystem needs connective tissue: communities, tools, introductions, and educational resources that help people map their skills to climate opportunities. Podcasting, research reports, in-person convenings, and peer networks all play complementary roles in climate education; there is no one-size-fits-all learning path. The most impactful climate action may be enabling early retirement of fossil assets without increasing rates for consumers, though that remains very difficult to solve.
Data Points: Event attendance: 60-70 people - Jason described the live San Francisco meetup audience size. Energy Impact Partners assets under management: a little over $1 billion - Shail described the size of the firm’s fund. Utility investor base: coalition of electric and gas utilities across North America - Shail explained EIP’s LP structure and utility-backed model. Rockport Capital cleantech fundraising: about $850 million - Abe referenced his prior firm’s cleantech-only capital raised over time. First-wave venture peak: $5-6 billion per year - Shail described peak venture dollars flowing into cleantech during the first wave. Congruent Ventures entry size: $500K to $1.5 million - Abe stated the firm’s typical initial check size. Congruent portfolio size: 27 companies - Abe mentioned the number of companies in their portfolio at the time. U.S. new electricity capacity mix in 2020: about 70% wind and solar - Shail cited expected new capacity additions in the U.S. that year. Operating fossil asset lifetime: 20-30 years - Shail noted existing fossil generation assets could take decades to retire naturally. Time in cleantech: 16 years - Abe said he had been investing in cleantech for 16 years. Time at Energy Impact Partners: 2 years - Shail said he was relatively new to the venture side, about two years in. Commercial entry capital example: $10 million - Shail used this as an example of a technology that could fit venture if risk could be reduced early. Non-venture example capital requirement: $50 million - Shail said technologies needing this much just to figure out if they work may not fit the venture model.
Pivotal Quotes: "The easiest heuristic for me is that the venture model works for a lot of things. It absolutely does not work for a lot of things as well." — Abe Yokel: Abe summarized his core framework for matching climate solutions to venture financing. "Climate change is inherently pervasive throughout the entire economy." — Shail Khan: Shail explained why there is no single path to learning or solving the problem. "It is true today that your cheapest source of electricity, almost no matter where you are in the world, is going to be either solar or wind as of today." — Shail Khan: Shail highlighted how the economics of power generation have shifted since the first wave.
Implications: Climate-tech is back, but success depends on discipline: choose the right capital, solve real market problems, and build networks that connect talent to opportunity. The next wave can avoid past mistakes if it treats climate as a systems challenge, not just a technology bet.