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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In the past, Africa's natural resources have often proven to be a curse, leading to exploitation, corruption, and immiseration of indigenous people. Now it finds itself at the center of another resource boom, this time around the critical minerals that will fuel the clean energy transition (lithium, copper, etc.). Will this time be different? Patrick Kipalu argues that indigenous land rights and informed community consent are not barriers to investment, but the only way to ensure stable, equitab...
Dry printing of battery electrodes can avoid the toxic solvents and industrial ovens involved in the conventional wet process, which means a smaller physical and environmental footprint, but engineers have struggled to make it work at the needed scale and speed. Now a company called Sakuu says it has cracked the code. It is selling machines it claims will be able to print multiple battery chemistries, at competitive costs and speeds. I talk with CTO Karl Littau about the details and what 3D prin...
In this episode, I dig into the debate over reforming renewable energy certificates (RECs), the instruments that allow companies to claim they're "100% renewable." I'm joined by Michael Leggett of Ever.green and Peggy Kellen of the Center for Resource Solutions to discuss the push for a "24/7" system that matches RECs to the exact time and place of consumption. We explore whether this seemingly intuitive change is the best path forward or if going too far, too fast could drive buyers from the ma...
Today's electricity grids are kept stable by the inertia of spinning masses — mostly fossil fuel generators. But what happens when those spinning masses are replaced by inverter-based resources like wind, solar, and batteries? The answer is that inverters must take over the stabilizing job, becoming "grid-forming" rather than merely “grid-following.” I chat with two experts about how grid-forming inverters work, how many are out there, and what the future holds for them. This is a public episode...
Lithium-ion dominates the battery world, but alternative chemistries are finding their niches. I talk with Landon Mossburg, CEO of Peak Energy, about using sodium-ion batteries for large-scale grid storage. They trade some energy density for a longer life and radically lower operating costs, thanks to an innovative, passively cooled design. We also explore the geopolitical opportunity of competing in a battery market that China doesn't already completely own. This is a public episode. If you'd l...
This week I talk with Dan Stein, whose organization Giving Green seeks to align climate philanthropy with the principles of effective altruism. But what does "effective" mean in the face of fossil fuel autocracy? We discuss the difficulties of measuring systems change and debate the limits of technocratic solutions. 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...
Movement veterans Bill McKibben and Jamie Henn have been thinking about where climate activism goes from here. They argue for a new focus on celebrating and accelerating the miraculous global boom in solar power. We get into what it looks like to fight for building stuff, how to win the online information war for clean energy, and why the sun offers not just cheaper power, but a form of liberation. 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 Frank Rambo of the Horizon Climate Initiative to discuss "uneconomic dispatch" — the costly and polluting practice of running coal plants even when cheaper, cleaner options are available. We dig into why utilities get away with this, how the Trump administration is now trying to force them to continue via bogus "reliability" claims, and why fighting this practice at the state level is a huge, bipartisan win for both the climate and consumer pocketbooks. This is a p...
In this episode, I'm joined by Jake Higdon and Isabel Munilla, who helped develop the original "foreign entity of concern" (FEOC) standards for the Inflation Reduction Act, which sought to encourage domestic supply chains. We explore the security risks that prompted FEOC policy, the delicate balance required to do it right, and the absolute hash that Republicans made of it in their recent budget bill, to the point that it may kill the domestic manufacturing they claim to support. This is a publi...
In this episode, recorded live back in May, I'm joined by the one and only Jigar Shah to discuss Washington state climate policy and post-IRA policy in general. Jigar argues that to build political durability, the climate movement must shift its focus from shiny tech to solving everyday cost-of-living problems and that smart finance is the real key to scaling the energy transition for everyone. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus ...
I'm joined by Alon Levy of NYU's Transit Costs Project, whose work documents how expensive it is to build transit in the US relative to the rest of the world. We discuss how countries like Spain and Italy build cheaply by relying on in-house public expertise and standardized designs, while the Anglosphere is captured by a costly ideology of privatization. Levy explains how applying these lessons could make ambitious projects like high-speed rail in the Northeast not just possible but affordable....
Ann Arbor voted to create a parallel, municipal electric utility that offers only distributed renewables, and Missy Stults is the woman making it real. We explore the nuts and bolts: buying existing solar for seed revenue, building microgrids in a city still served by DTE, and why DTE is — so far — more curious than threatened. If it works, the SEU could become the blueprint for every climate-ambitious town trapped in IOU territory. This is a public episode. If you'd like to discuss this with ot...
In this episode, Arc CEO Mitch Lee explains why the jump from gas-powered boats to electric boats is even bigger, in terms of quality and user experience, than the jump from gas-powered cars to EVs. EBs are strikingly quieter, have greater torque, and require much less maintenance. Oh, and despite what Trump says, they are also much safer and less likely to strand their occupants. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visi...
I chat with Kostantsa Rangelova and Dave Jones, authors of a new Ember report, who find that solar-plus-storage costs have declined so much that it can now provide baseload-level power in sunny cities for less than the cost of new nuclear or even new gas. We discuss why even energy pros are behind the curve on this, how quickly the technology is improving, and why most of the world doesn't see natural gas as a viable option the way the US does. This is a public episode. If you'd like to discuss ...
This is a free preview of a paid episode. To hear more, visit www.volts.wtf In this "What the F is Happening" episode, I'm joined by Jane Flegal and Jesse Jenkins to perform a wake for the Inflation Reduction Act after the passage of the GOP's "Big Beautiful Bill." We sift through the wreckage to see what was saved versus what was buried, analyze the political forces that determined the outcome, and debate the core theory of change behind the IRA — and what lessons advocates should and shouldn't...
In this episode, I talk with Montana state senators Forrest Mandeville (R) and Ellie Boldman (D) about the bipartisan housing reforms their state has passed over the last two legislative sessions — reforms so sweeping YIMBYs have dubbed them the "Montana miracle." We discuss the unlikely coalition supporting the bills, the impact of the policies, and the generational divide that increasingly separates YIMBYs from NIMBYs. Also: why "housing is the new weed"! This is a public episode. If you'd lik...
David Roberts talks with Quinn Nakayama about PG&E's new GRID program, aimed at fostering innovation and partnership to meet California's ambitious energy goals. They discuss the utility's strategy of publicizing its needs to attract partners, overcoming internal and external challenges, and embracing new technologies like flexible interconnection for EVs and data centers, smart panels, and undergrounding techniques to improve grid reliability and affordability while accelerating decarbonization.
David Roberts talks with Jeff Bladen of Verus about building "good grid citizen" data centers. They explore how a novel architecture combining medium-voltage distribution and large-scale batteries allows data centers to be flexible power consumers, helping utilities manage loads and connect more capacity with less grid impact. They also discuss the cost competitiveness, reliability benefits over traditional backup, and how this design supports decarbonization goals.
In this episode, I chat with fellow energy nerd-turned-ag-reporter Michael Grunwald about agriculture’s climate impact. We explore the folly of biofuels, the promise of meat alternatives, and the central importance of increasing yields. While we can imagine a future of energy abundance, land is a zero-sum game — no one’s making more — so the choices here are uniquely difficult and important. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus epi...
In this episode, I'm joined by two of California's leading housing champions, Assemblymember Buffy Wicks and Senator Scott Wiener, to discuss their bills to reform the state's notorious environmental review law, CEQA. We explore how a well-intentioned 1970s environmental protection has become a tool for NIMBYs, unions, and even oil companies to delay or kill housing projects — and why the politics have finally shifted enough to make progress possible. This is a public episode. If you'd like to d...
In this episode, Rep. Mike Levin and I discuss the “Big Beautiful Bill” that raises energy bills, kills 830,000 jobs, and gifts China the next industrial revolution. We unpack the fossil-fuel cash behind the carnage, the paradox of red districts cutting their own subsidies, and the optimistic playbook — centered on transmission and real climate economics — for the next Democratic majority. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episo...
Washington state just passed one of the strongest transit-oriented development bills in the nation, and in this episode, I talk with Rep. Julia Reed and Alex Brennan from Futurewise about how they got it done. We discuss why building more housing near transit is so important, what this landmark legislation entails for density and affordability, and how it positions Washington as a leader in pro-housing reform. This is a public episode. If you'd like to discuss this with other subscribers or get ...
On June 4, at a Canary Media event in Washington, DC, I sat down with Senator Martin Heinrich to dissect the GOP’s so-called “Big Beautiful Bill” — a sledgehammer aimed at the Inflation Reduction Act, public-lands protections, and US science. We talk about the handful of Republican votes that could still save key tax credits, why bipartisan permitting reform isn’t dead yet, and how the bill’s self-inflicted grid squeeze would jack up energy prices right when AI is poised to spike demand. This is...
In this episode, I'm digging into the surprisingly overlooked world of electric motors with Ankit Somani of Conifer, a startup aiming to revolutionize these unsung workhorses of the energy system. We explore their ambitious approach to making motors lighter, more efficient, and cheaper to build, all while ditching problematic rare-earth magnets. 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 talk with Taylor Krause, who went from working on hydrogen policy at RMI to finding a quantum physicist husband and unexpected fame on Netflix's Love Is Blind . We unpack her surreal journey from clean-energy wonk to popular influencer and how she's navigating using her newfound influence. 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 Johanna Wolfson, co-founder of Azolla Ventures, about their unique philanthropic-backed VC model tackling the tough problem of sustainable mining for the clean energy transition. We explore the promising tech Azolla is backing to reduce mining's impact, from using electrochemistry to refine copper without dirty smelting to advanced techniques for processing low-grade ores and even waste. This is a public episode. If you'd like to discuss this with other subscribers o...
This is a free preview of a paid episode. To hear more, visit www.volts.wtf This week on "What the F is Happening" (periodic episodes in which we reluctantly discuss current events) we talk with Adrian Deveny, a former Senate aide who was in the trenches for the IRA's creation, about the House GOP's "Big Beautiful Bill." In its current form, it amounts to wholesale destruction of the last four years of climate policy. We ponder the bill's chances of becoming less catastrophic in the Senate amid ...
In this episode, I talk with Catie Gould and Alan Durning of the Sightline Institute about the "dark matter" of urban land use: parking — specifically, the municipal parking mandates that help make housing more expensive and scarce. We discuss a landmark new parking reform bill in my home state of Washington, what it does and the coalition that made it possible, and point to other places where parking reform is coming soon. This is a public episode. If you'd like to discuss this with other subsc...
This week, I chat with Dawn Weisz of MCE Clean Energy about the nitty-gritty of community choice aggregation, where local governments take control of their electricity procurement. We get into issues like navigating utility obstruction, the complexities of rising grid costs they don't control, and their push for smarter, more autonomous regulation. 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 sit down with Page Crahan, who leads Tapestry, an audacious effort to “make the grid visible.” We explore how disparate, scattered data sources can be stitched together by AI into a coherent realtime map of the grid, to slash operation and maintenance costs and speed up the grid interconnection process. 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...
