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Interchange RechargedAuthor: Wood Mackenzie
Clean tech, green finance and energy innovation are the three lanes on the road to a successful global energy transition. At the intersection of these lanes is a place where ideas on finance, technology and policy are shared and debated. That intersection is Interchange Recharged.While Sylvia Leyva Martinez, principal analyst at Wood Mackenzie, is on maternity leave, Bridget van Dorsten, a principal analyst on Wood Mackenzie's hydrogen team, will be hosting this podcast, Interchange Recharged. When Bridget is not researching global market dynamics to craft near and long-term forecasts for low-carbon hydrogen and its derivatives she is speaking with visionaries, entrepreneurs, policy-makers and energy analysts to explore the newest developments in renewable technology, explain the ideas on global energy policy that could accelerate the energy transition, and identify new funding and financial models that could solve the biggest challenges we face on the way to net zero.Bridget and her guests bring you data and forecasts on clean technology, climate science, and offer predictions on the build out of utility-scale projects and the future of green finance.What impacts do the annual UN Conference of the Parties have on decarbonisation goals and climate change? What will COP30 bring? Whats happening in global EV adoption and development? Whats the forecast for solar energy, one of the major success stories of renewable energy in the last ten years? What does the data tell us about the future of hydrogen, of nuclear, or of low-carbon power? These are examples of the insights and detailed analyses you can expect bi-weekly on Tuesdays at 7am ET.If you like The Energy Transition Show, Catalystwith Shayle Kann, The Big Switchfrom Columbia University, Open Circuit with Jigar Shah or The Green Blueprint, youll enjoy Interchange Recharged. Want to get involved with the show? Reach out to podcasts@woodmac.com to: Bring Language: en Genres: Business, News, Tech News Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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As racks scale, power must change: The AC-to-DC rethink inside AI factories
Episode 348
Tuesday, 30 June, 2026
As AI systems scale, the infrastructure challenge is no longer just about chips, models, and software performance. It is increasingly about the physical systems that allow computation to happen at all: power delivery, cooling, water access, and the speed at which new capacity can be brought online. Power conversion is becoming a much more important design question. As racks move from conventional power densities toward megawatt-scale configurations, every inefficiency in the electrical pathway becomes more consequential. For stakeholders across the energy sector, that makes AI infrastructure more than just a datacenter story. It is also a story about grid constraints, industrial load growth, thermal management, and how developers can design facilities that are efficient enough, flexible enough, and resilient enough to operate at the scale AI now demands.Host Sylvia Leyva Martinez is joined by Nick Wright, Vertical Solutions Manager at Siemens. Their conversation explores why the growth of the AI factory is pushing operators to rethink traditional electrical architecture, especially the number of conversion steps required to move power from the grid to the chip. Nick explains why conventional AC-heavy setups are under pressure as compute loads become denser, more dynamic, and more power-intensive, and why more direct AC-to-DC pathways are drawing increased attention. The episode also examines what that shift means in practice: less energy lost in conversion, less excess heat to manage, different implications for cooling design, and a growing role for higher-voltage DC systems, digital twins, monitoring technologies, and new protection equipment. Along the way, the discussion widens beyond the building itself to consider how AI facilities may evolve into more grid-aware assets, capable of interacting more intelligently with the broader energy system rather than functioning simply as passive loads.For developers, IPPs, utilities, financiers, and infrastructure planners, the episode offers a clear signal that power architecture is becoming a strategic decision much earlier in the project lifecycle. One of the key takeaways is that this is not a simple story of DC replacing AC. The more relevant point is that as racks scale, reducing unnecessary conversion steps can improve efficiency and system performance in ways that matter economically at very large scale. But the conversation also makes clear that conversion efficiency is only one part of a much broader infrastructure equation. Access to reliable power, water availability, cooling strategy, workforce readiness, supply chain bottlenecks, equipment lead times, and safety considerations all shape whether a new AI facility can be delivered on time and scaled over the long term. The players most likely to succeed will be the ones that stop treating power as a late-stage procurement issue and instead plan holistically across energy, compute, operations, and grid interaction from the beginning.This episode is brought to you by twentytwo & brand -- a marketing and PR agency built specifically for energy leaders.Lots of agencies say they work with energy companies, twentytwo & brand was built for them. They've partnered with more than 120 companies driving the energy transition — from growth-stage startups to globally recognized industry leaders. Media relations, brand design, video, paid advertising, and community engagement — they cover it all under one roof. No onboarding lag, no industry crash course -- they speak your language on day one.If you're ready to sharpen your story and supercharge your marketing, find them at twentytwoandbrand.com/woodmac.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
