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It can be stomach-turning, watching the Trump administration torch federal climate policy. But what if some of what's burning wasn't working particularly well to begin with? Hannah Safford and Loren Schulman of the Federation of American Scientists' Center for Regulatory Ingenuity make the case, not for defending or trying to rebuild the status quo regulatory regime, but for imagining something be...

The US power grid runs at about 50% capacity on average — built for its worst day, underutilized every other day. As demand surges from data centers and electrification, utilities are racing to build more infrastructure. But Ian Magruder, who heads the new industry-backed Utilize Coalition, argues there's a cheaper, faster path: better use what we've already built — it will enable faster growth an...

In this episode, Dakota Gruener of Reflective walks me through her organization's new project, which maps the gaps in our scientific understanding of stratospheric aerosol injection — currently the leading candidate for directly cooling the planet. We get into what we don't know (including a factor-of-two disagreement on basic aerosol physics), who's already doing this without oversight, and the u...

The explosive energy demand from data centers is breaking our grid, pushing desperate developers to build their own on-site gas plants just to get online. To figure out how we avoid locking in decades of new fossil fuels, I’m joined by Camus CEO Astrid Atkinson and Princeton’s Jesse Jenkins to break down their proposed alternative. We dig into how adopting flexible grid interconnections and clean,...

New York Governor Kathy Hochul is trying to delay or roll back the state’s landmark climate law in the name of affordability. I’m joined by activist Pete Sikora to discuss the governor’s claims, what would actually serve affordability, and the larger politics behind this puzzling own-goal of a fight. This is a public episode. If you'd like to discuss this with other subscribers or get access to bo...

In this episode, I’m joined by Kunal Girotra, who helped start and run Tesla’s residential energy business before leaving to start his own company. With Lunar, he has tried to create the most consumer-friendly possible battery and software ecosystem, which can seamlessly plug into solar panels, other devices, or VPPs. We talk about lessons learned and the future of residential electrification. Thi...

I’m back with part two of my conversation with Jan Sramek, founder of California Forever, about his plan to build a brand-new city in Solano County. We get into the nuts and bolts of the urban design, discuss affordability and sustainability, get into governance issues, and look forward to what might happen next. This is a public episode. If you'd like to discuss this with other subscribers or get...

In this episode, I’m joined by Jan Sramek to discuss California Forever, the much-debated proposal to build a brand-new, sustainably designed city in Northern California. We explore the urbanist vision at the heart of the project, including a street grid inspired by Barcelona superblocks, and address the elephant in the room — the stealthy land acquisitions and the billionaire backers. Is this an...

If the world takes its climate targets seriously, the coming decades will see fossil fuel systems shrinking as clean energy systems grow. In this episode, I talk with associate professor Emily Grubert about the issues that may arise during this “mid-transition” period. She has fascinating new study on the physical and financial cliffs that fossil fuel systems may go over as they decline and reach...

In this episode, I chat with Catalyst host Shayle Kann about the most pressing unresolved questions in the clean energy world today. We explore whether data center gigantism will break the grid, if the smart home revolution is destined for platform enshittification, whether billionaires should start testing solar geoengineering, and more. This is a public episode. If you'd like to discuss this wit...

PJM is the largest wholesale power market and transmission planning region in the US. Currently, it is stuck between a rock and a hard place: on one side, rising demand from data centers; on the other, a choked and congested interconnection queue that can’t keep pace. The result: rising prices and political discontent. I talk with Clara Summers of the Citizens Utility Board about how PJM can solve...

Meat is responsible for roughly a fifth of climate change, the lion’s share of deforestation, 70% of our antibiotic use, and quite possibly the next pandemic — and consumption is going up every single year, with no end in sight. In this episode, Bruce Friedrich of the Good Food Institute joins me to argue that the only way out of this mess is better meat: plant-based and cultivated alternatives th...

Utilities and their regulators are often protected by a "force field of tedium," but in this episode, I pierce the veil to discuss the complex machinery of utility profit-making. I’m joined by Joe Daniel of RMI to unpack the critical distinction between "return on equity" and "cost of equity," and why the former is almost always higher than necessary. We discuss how regulators can close this gap t...

In this episode, I chat with Dr. Sarah Kapnick about the core of climate science and the wild variables that have emerged in the last decade. We discuss the “accidental geoengineering” experiment of reducing shipping aerosols, the newfound ability to pinpoint methane leaks from space, and the legal implications of being able to attribute financial losses to climate change. This is a public episode...

How does a small, mountainous island with no interconnections and a massive industrial load clean up its grid? In this episode, I speak with Yeh-Tang “Ricky” Huang about the technical and political bottlenecks holding back Taiwan’s energy transition. We explore why the country has struggled to deploy wind and solar, the realistic prospects for advanced geothermal, and the absolute necessity of dem...

Why do so many influential voices spend their time policing the manners of the left while the right dismantles democracy? In this episode, Michael Hobbes — cohost of the much-celebrated “If Books Could Kill” podcast — joins me to discuss the “reactionary centrist,” a type of commentator who believes that both sides are to blame for everything and demonstrates this by spending every waking moment s...

Rooftop solar costs nearly three times as much in the US as it does in Australia, largely due to the "paperwork tax" imposed by thousands of fragmented local jurisdictions. I talk with Nick Josefowitz of Permit Power and solar veteran Andrew Birch about how to slash these soft costs through automated permitting and standardized interconnection. We discuss how these bureaucratic fixes could unlock...

Everyone is talking about virtual power plants, but as I discuss with EnergyHub CEO Seth Frader-Thompson, not all VPPs are created equal. We get nerdy on the various stages of VPP maturity and the specific technical requirements that VPPs must meet to truly compete with conventional power plants rather than just acting as “enhanced demand response.” This is a public episode. If you'd like to discu...

I’In this episode, I chat with Swedish tech entrepreneur Jonas Birgersson about his radical plan to apply the architecture of the internet—packet switching, buffering, and decentralized routing—to the electricity grid. We explore how his “EnergyNet” concept uses power electronics to create galvanically separated microgrids that stop cascading failures and allow neighbors to share power directly. I...

Conventional geothermal energy is limited to specific hot spots, but “closed-loop” geothermal, by going deeper and confining water to sealed boreholes, promises to work almost anywhere; it amounts to building a giant radiator, deep underground. I’m joined by Jeanine Vany and Mark Fitzgerald of pioneering closed-loop startup Eavor to discuss their newly operational plant in Germany and the many adv...

In this episode, I’m joined by Kate Slevin of the Regional Plan Association to discuss the triumphant first year of congestion pricing in Manhattan. We explore how the program defied its critics by boosting business and pedestrian traffic while reducing gridlock, without evident traffic spillover onto adjacent streets. We also cover the money that’s been raised for public transit and what the futu...

Hawaii Senator Brian Schatz joins me to discuss the energy policy landscape facing Democrats and how they should respond. We touch on the shift in messaging from “climate” to “affordability,” current Congressional Republican efforts on permitting reform in light of Trump’s anti-renewables crusade, the role of green groups in climate politics, and much more. This is a public episode. If you'd like...

Why can Australian homeowners get rooftop solar installed in a week or less, for roughly 50 cents a watt, while Californians pay $3.30/w and wait months for interconnection? In this episode, I ask inimitable Australian energy expert Saul Griffith to walk us through the entire process — from quote to interconnection — to pinpoint exactly where the US system is broken and how we could fix it. This i...

The problem of misinformation in the current age, argues political scientist Samuel Bagg, is not that reliably truth-producing institutions and practices don’t exist, but that people have ceased to trust them. Changing that requires something deeper than factchecking or media literacy. It’s a matter of social identity, and solving it will mean reconfiguring the social identity landscape. I talk wi...

Senator Ruben Gallego (AZ) joins me to discuss his new energy plan, which combines elements of the Inflation Reduction Act with a new focus on permitting reform and small modular nuclear reactors. We get into all of it, from the promise of nuclear energy to the role community consultation. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episode...