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The think tank Ember just released its yearly Global Electricity Review. In this episode, I chat with co-authors Nicolas Fulghum & Kostantsa Rangelova about the biggest stories in the global power sector in 2025. We geek out over the record-breaking scale of solar deployment, the game-changing role of batteries in shifting midday power to the evening, and the tantalizing possibility that India will not follow China’s coal-heavy development path and that global fossil fuel generation has finally plateaued. 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

This is a free preview of a paid episode. To hear more, visit www.volts.wtf Heatmap’s Robinson Meyer joins me to unpack the sheer madness of the current news landscape. We discuss the energy implications of the Iran war, the vexed politics of permitting reform, Microsoft’s retreat from carbon dioxide removal, the lessons of the IRA, the lingering pastoralism of the environmental movement, and much more.

Beth Bafford spent years designing Climate United, a revolving fund meant to push out $7 billion of Greenhouse Gas Reduction Fund money to underserved communities. She had barely begun sending out grants when Trump shut the program down and rescinded all the money. In this episode, I talk with her about that experience, the ongoing legal fight to reclaim some of the money, and the central importance of finance in clean energy policy. 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 welcome back my old friend Jigar Shah to discuss the current hullabaloo around explosive electricity demand from new data centers. We dig into why its stupid for tech companies to build their own behind-the-meter natural gas plants, how this approach is wrecking equipment and destabilizing the grid, and a better, smarter, faster path forward. 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

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 There are some circumstances — think disaster recovery zones or forward military bases — that cry out for portable, reliable, resilient power. I talk with Lauren Flanagan about Sesame Solar’s self-contained nanogrids, which use solar PV, batteries, and hydrogen storage to provide energy that works around the clock in remote or inclement environments.

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 climate funders prefer cutting checks for electric vehicles over fighting for dense, transit-oriented housing? I talk to Ben Holland, who recently interviewed major climate foundations about their anti-urbanism bias, and returning guest Caroline Spears, who is working to pass climate-friendly housing policy at the state level. We discuss why obsessing over easily quantifiable emissions reductions is blinding the movement to massive, tractable wins, and why ignoring zoning reform is no longer an option for serious climate advocates.

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 better. 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 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 and bring down ratepayer bills, potentially by billions. 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, 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 unsettling governance question of who controls the Earth's thermostat once humanity has grabbed 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 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, battery-backed “power parks” can meet this massive load growth without abandoning our decarbonization goals. 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

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 bonus episodes, visit www.volts.wtf/subscribe

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. 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 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 access to bonus episodes, visit www.volts.wtf/subscribe

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