The Green Blueprint

Lithium-ion batteries have revolutionized energy storage, but inexpensive, truly long-duration batteries may still have a significant role to play in backing renewables and decarbonizing the grid. Form Energy is tackling that challenge with a new class of iron-air batteries. By oxidizing and reducing iron — essentially rusting and unrusting the earth's most abundant metal — Form is creating low-cost, multi-day storage that competes directly with natural gas peaker plants. Mateo Jaramillo, CEO and co-founder of Form Energy, has spent over two decades in the battery industry, including building Tesla’s storage business. At Form, he’s leading the charge to bring these "E-peakers" to utilities across the country. The company recently achieved a major milestone: completing a 550,000 square-foot factory on the site of an old steel mill in Weirton, West Virginia. In this episode, Mateo talks with host Lara Pierpoint about the grueling realities of scaling up manufacturing, why they chose to build in West Virginia, using AI to drive material science discovery and dig a data moat, and the immense logistical challenges of building the physical infrastructure of the clean energy transition. Credits: Hosted by Lara Pierpoint. Produced and edited by Ross Kenyon, Anne Bailey, and Stephen Lacey. Sean Marquand is our technical director. Stephen Lacey is our executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this show, subscribe to Latitude Media’s newsletter.

Silicon solar panels have led the market for decades but will soon hit a ceiling around 25% efficiency. Perovskite, a frontier material once dismissed for degrading too fast, is now being called the holy grail of solar. Saritha Peruri, VP of Commercialization at Tandem PV, is bringing it to market. The company stacks its proprietary perovskite on top of silicon, capturing a wider spectrum of light and pushing efficiency past 30%, a major jump over conventional solar. And because it builds on the silicon PV infrastructure that already exists, the path to scale stays simple. Getting there wasn't easy. After a long Series A, Tandem PV pulled off something rare in deep-tech hardware: 100% equipment financing for its 40-megawatt demonstration factory. It's now shipping quarter-sized modules to utility-scale customers who want U.S.-made panels for supply chain certainty and the domestic content kicker. It’s potentially a bridge to a post-ITC world that cuts land and labor costs because each installation needs far fewer modules. In this episode, host Lara Pierpoint talks with Saritha about reaching high durability and the challenges of financing deep-tech hardware. Credits: Hosted by Lara Pierpoint. Produced and edited by Ross Kenyon and Anne Bailey. Technical direction by Sean Marquand. Stephen Lacey is our executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this show, subscribe to Latitude Media's newsletter.

The global financial system is undergoing a structural shift into a "volatile new world order," where unpredictability is the norm, and climate tech is uniquely exposed. Venture investor Susan Su says the war in Iran is complicating the landscape. That's because about 40% of the world's capital comes from just four Gulf states, and those states are exploring whether the war allows them to invoke force majeure to legally exit binding financial commitments to fund billion-dollar projects – including energy projects. It's a move that's creating a chilling effect on large, long-term investments. Susan's warning for founders? "Be default alive by any means necessary." With the next 18 to 24 months predicted to be a brutal filtering environment, she recommends extending financial runways to three years, if at all possible. In this episode, Susan talks with Lara about why founders should act urgently and highlights the increasing availability of pockets of catalytic capital and downside-protected debt products as funding options. Credits: Hosted by Lara Pierpoint. Produced and edited by Ross Kenyon and Anne Bailey. Technical direction by Sean Marquand. Stephen Lacey is our executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this show, subscribe to Latitude Media’s newsletter.

About 90% of global energy storage is pumped storage hydropower – which requires a mountain, a lake, and a whole lot of permitting. While lithium batteries have gotten drastically cheaper over the last decade, they’re still expensive for longer durations. But Cindy Taff and her team at Sage Geosystems are developing geothermal technology that could revolutionize energy storage. Instead of pumping water up a mountain, they pump it deep into the earth, providing cost-effective, long-term storage for intermittent renewable sources. They’re piloting this technology at a new commercial facility in partnership with San Miguel Electric Cooperative, a rural Texas electric cooperative that is transitioning from coal to solar and battery storage thanks to a USDA grant. In this episode, Lara Pierpoint talks with Cindy Taff, CEO of Sage Geosystems about its groundbreaking new technology, their first commercial facility, and upcoming partnerships with geothermal giant Ormat Technologies. Hosted by Lara Pierpoint. Produced and edited by Stephen Lacey and Anne Bailey. Technical direction by Sean Marquand. Stephen Lacey is our executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this show, subscribe to Latitude Media’s newsletter.

Back in January, Captura CEO Steve Oldham was sitting in a conference room in Hawaii, entertaining reps from the company’s first potential customer. What the customer didn’t know was that Captura’s ocean-based carbon removal pilot –the whole reason for the visit – still wasn’t working. The stakes were high. Steve’s team needed to prove they could pull off a major pilot under intense time crunch — amid broader pressure on the carbon removal sector to show it can scale reliably and fast. So what did it take to install the pilot and win over a first customer? In this episode, host Lara Pierpoint talks with Steve about Captura’s rapid scale-up from a desktop prototype to a 1,000-ton pilot. They also discuss the science behind removing CO₂ from ocean water, and the difficult decisions required to keep the company on track — including walking away from a premier industrial site and racing to rebuild the project half a world away. Credits: Hosted by Lara Pierpoint. This episode was produced by Daniel Woldorff and Erin Hardick. Anne Bailey is our senior editor. Sean Marquand is our technical director. Stephen Lacey is our executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this show, subscribe to Latitude Media’s newsletter.

In 2007 Sam White, co-founder of Promethean Power Systems, was traveling through India looking for a rural electrification problem to solve. He and his team had just won a $10,000 grant in an MIT competition, and they wanted to find an industry in India that needed their help. After looking at the sugar industry and the grape industry, they finally settled on dairy. India is the largest producer and consumer of milk in the world, but poor infrastructure makes getting chilled milk from farmer to consumer difficult. Industry standards require milk to be chilled within four hours of milking the cows, or bacteria spoils it. India averages six hours. Sam’s team had found their problem. But it would take years of failed designs to solve it. In the end they perfected a 500 liter tank that could chill a thousand liters of milk – a 300% increase in efficiency from previous designs. Today, Promethean had installed 2800 of those tanks across India. In this episode, Lara Pierpoint talks with Sam about the evolution of Promethean's thermal battery design, the upsides of slow but steady growth in climate tech, and how Promethean dealt with technology copycats in India.

For decades, nuclear has struggled with cost overruns and delays — Georgia’s Vogtle plant being the latest example. Kairos Power co-founder and CEO Mike Laufer thinks the solution is to flip the script: focus first on non-nuclear demonstrations and then iterate quickly. It’s a counterintuitive and potentially risky strategy . Rapid iteration isn’t the way engineers or funders like the DOE have traditionally developed nuclear plants. Kairos also combined two technologies — TRISO fuel and molten salt — into a first-of-a-kind design. Theoretically it would be safer, but Kairos was also tackling one of the hardest problems in engineering: building a reactor from scratch. After eight years of development, its approach has led to three engineering test units, a novel contracting model with the Department of Energy, and a landmark partnership with TVA and Google to deliver nuclear power to data centers. So how did Kairos pull it off? In this episode, Lara talked with Mike about how Kairos executed its ambitious iterative approach without overextending itself. They also cover why Kairos chose to vertically integrate and build its own in-house machine shop, plus what technical setbacks taught the team. Credits: Hosted by Lara Pierpoint. Produced by Daniel Woldorff and Erin Hardick. Edited by Anne Bailey. Technical direction by Sean Marquand. Stephen Lacey is executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this podcast, subscribe to Latitude Media's newsletter.

Three years ago this month, the Inflation Reduction Act passed, marking the largest investment in climate policy in U.S. history. It included over $300 billion to address global warming and was expected to unlock nearly $3 trillion in private investment by 2032. But then came Donald Trump. Over the last eight months, the Trump administration has worked to dismantle much of that progress, including withholding funds, canceling loans and grants, and working with Congress to roll back tax credits. For those working in climate tech, it’s been a pretty dark time. But U.S. Sen. John Hickenlooper of Colorado, one of the lawmakers behind the IRA, says he’s surprisingly optimistic about future policy wins despite White House opposition to climate and clean tech. In this episode, Lara talks with Sen. Hickenlooper about passing the landmark climate law and protecting it, his ideas for building a bipartisan coalition for permitting reform, and why he’s actually hopeful eight months into Trump’s second term. Credits: Hosted by Lara Pierpoint. Produced by Erin Hardick. Edited by Anne Bailey and Stephen Lacey. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this podcast, subscribe to Latitude Media's newsletter.

In 2021, Commonwealth Fusion Systems proved it had built the most powerful magnet in the world. The breakthrough was based on a specific material - a tape - that conducts massive amounts of current with very little loss. Rick Needham, Chief Commercial Officer for CFS, says the breakthrough led to a $1.8 billion Series B fundraising round. Since then, the company has turned its attention to turning this scientific breakthrough into a commercial technology. And in late 2024, the company announced it had signed a deal with Dominion Energy Virginia to build the world’s first commercial fusion power plant, ARC. In this episode, Lara talks with Rick about how CFS plans to take its technology from the lab to real-world deployment. They discuss major milestones, like proving net energy gain and finding a customer for a technology that has never been proven in the field. And Rick makes the argument that fusion is much closer than most people think. Credits: Hosted by Lara Pierpoint. Produced by Erin Hardick. Edited by Anne Bailey and Stephen Lacey. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this podcast, subscribe to Latitude Media's newsletter.

This week, we're bringing you a special episode of Catalyst with Shayle Kann, a show about how to decarbonize the planet. In this episode: what it takes to secure investments for first-of-a-kind infrastructure projects. First-of-a-kind projects need infrastructure investment, the kind of money that costs less than venture capital and usually comes in the form of deals worth tens or hundreds of millions of dollars. But infrastructure investors are notoriously conservative and convincing them to bite can be challenging. So what do infrastructure investors really want? In this episode, Shayle talks to Mario Fernandez, head of Breakthrough Energy’s FOAK finance program. It has worked with companies like Rondo, Form Energy, and Lanzajet to overcome challenges on the path to infrastructure investment. Coincidentally, the program is also called Catalyst (no relation to our show). Mario and Shayle talk about the journey from lab-proven technology to a fully de-risked infrastructure investment, covering topics like: Why investors want to see a path to multiple, repeatable projects Mario’s prescription for a scale-up path: pilot, demo, and FOAK project The difficulty of following that path on a limited financial runway The commercial construct and the tension between negotiating a flexible offtake and securing a customer Developing the right capital stack and accurately estimating capital needs Credits: Hosted by Shayle Kann. Produced and edited by Daniel Woldorff. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor.

In 2021, Neha Palmer co-founced Terawatt Infrastructure with a bold mission: create the backbone for America's electric trucking revolution. Within its first year, Terawatt secured a billion-dollar investment. But as the company developed plans for a nationwide charging network, it confronted the daunting challenge of building infrastructure for an electric truck market that barely existed. High-profile bankruptcies like Nikola Motors cast long shadows over the sector's viability, raising questions about whether heavy-duty transport can truly be electrified. In this episode, Lara talks with Neha about how Terawatt aims to transform freight transport despite market skepticism. Neha explains Terawatt’s strategic approach to site selection, innovative charging designs for fully-loaded trucks, and the vision for a revolutionary California-to-Texas network. Credits: Hosted by Lara Pierpoint. Produced by Erin Hardick. Edited by Anne Bailey and Stephen Lacey. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor.Register here for Transition-AI 2025 in Boston on June 12th, 2025. Use promo code LATITUDEPODS10 for 10% off your ticket.

In 2018, LineVision was a young company with revolutionary technology for electric transmission lines. Its dynamic line rating sensors and software could increase the capacity of existing power lines by up to 40% without building new infrastructure — a critical solution for integrating renewables and meeting growing electricity demand. But to prove its tech, it needed to win over notoriously cautious utilities. When a crucial project worth $750,000 went to a competitor, LineVision's leadership made a last-ditch appeal that changed the company's trajectory. In this episode, host Lara Pierpoint talks with LineVision’s vice president of customer success, Karthik Rao, about navigating utility cybersecurity requirements, escaping “pilot hell,” and how LineVision became the partner behind the world's largest DLR project. Credits: Hosted by Lara Pierpoint. Produced by Erin Hardick. Edited by Anne Bailey and Stephen Lacey. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts. For more reporting on the companies featured in this podcast, subscribe to Latitude Media's newsletter.

When Raffi Garabedian co-founded Electric Hydrogen in 2020, he saw existing electrolyzers as too small and expensive to make green hydrogen economically viable. Instead of building standard sub-megawatt units, his team aimed for 100-megawatt systems at half the industry cost. Initial market enthusiasm brought millions in capacity reservations, fueling construction of a Massachusetts manufacturing plant. Then came the "trough of disillusionment" – a global cooling on hydrogen as projects faltered under high costs. In this episode, Lara Pierpoint talks to Raffi about taking big technology risks while building a factory during market volatility. He explains why startups, not incumbents, are best positioned to drive the cost reductions needed to make green hydrogen competitive with fossil alternatives. Credits: Hosted by Lara Pierpoint. Produced by Erin Hardick. Edited by Anne Bailey and Stephen Lacey. Original music and engineering by Sean Marquand. Stephen Lacey is executive editor. The Green Blueprint is a co-production of Latitude Media and Trellis Climate. Subscribe on Apple, Spotify, or anywhere you get podcasts.