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Volts

Author: David Roberts

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Volts is a podcast about leaving fossil fuels behind. I've been reporting on and explaining clean-energy topics for almost 20 years, and I love talking to politicians, analysts, innovators, and activists about the latest progress in the world's most important fight. (Volts is entirely subscriber-supported. Sign up!)

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400 Episodes
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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 urbanist utopia in the making or a grandiose con job? This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 their “minimum viable scale” — and argues that public ownership of these dying industries might be the only way to gracefully phase them out. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 this dilemma and get prices under control. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 that can compete on price and taste, the way renewables now compete with fossil fuels. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 to lower consumer costs without hindering essential grid upgrades. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
Taiwan's energy dilemma

Taiwan's energy dilemma

2026-02-0401:09:45

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 demand-side flexibility in such a constrained system. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 scolding Democrats. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 dirt-cheap energy for American families without the need for subsidies. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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. It is a mind-bending look at how treating electrons like data could lead to unlimited energy for a low fixed fee. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 advantages of a system that requires no fracking and consumes no water. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 future holds for the congestion relief zone. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 with Bagg about that daunting conclusion and its implications for democracy. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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 episodes, visit www.volts.wtf/subscribe
In this episode, Aliya Haq unpacks how her two decades in the climate movement have reshaped her view of what works. After six years working at Bill Gates’ Breakthrough Energy initiative, she has launched the Clean Economy Project, which will push for grid upgrades, market reforms, and innovation to make clean energy cheaper and more abundant. We wrestle with the politics of it all. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
I’m joined by Brian Turner and Kathleen Staks to unpack the details of the newly authorized Regional Organization for Western Energy (ROWE), a unique “à la carte” RTO designed to unify the western US grid without trampling on state independence. We discuss the transition from the existing imbalance market to a full day-ahead market, the safeguards built into the bylaws to protect state clean-energy policies, and the politics of getting 38 separate balancing authorities to cooperate. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe
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Comments (4)

Andy Gelbart

a brilliant episode. it stands out even against the other excellent ones.

Dec 14th
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Marion Grau

A bad idea on any account.

Feb 25th
Reply

Andy Gelbart

brilliant episode. so much incisive commentary with great nuanced perspective.

Jul 16th
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Krisztina Szabo

I've listened :) great info, thank you! could you please address one more question: are there plans included in this IRA, or elsewhere, how to supply quality engineers to the new green technologies ( invention, production, etc). i'm especially interested in (well, worried) that this new enthusiasm might be single-focused and sometimes won't have time to evaluate 360 impact. Just one example: dams had to be destroyed because we found out they were not friendly to salmon. anyhow: are the plans to train (obtain) engineers and workforce in this hurry that is smart enough to not make such mistakes.

Aug 28th
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