Interchange Recharged

We're looking back at some of our most popular episodes of the year. Here is one from January this year.
US data centre announcements are averaging 435MW a month, and there’s around 175GW of large-load capacity already committed or under construction. AI hyperscalers are looking for innovative ways to meet their energy demands. It’s one of the biggest infrastructure challenges in energy right now: how to deliver reliable, fast power without derailing climate and decarbonisation goals. Joining interim host Bridget van Dorsten is Akhil Batheja, Director of Technology Strategy at Bloom Energy, to unpack why fuel cells have moved from “interesting clean technology” to the epicentre of the data-centre power conversation - and what that shift means for utilities, energy projects, and energy policy.
Together they discuss how solid oxide fuel cells differ from turbines, engines and batteries - from efficiency and permitting advantages to “Lego block” scalability - and why “time to power” is becoming the defining metric for data center owners. Bridget and Akhil explore grid resilience and the realities of operating off-grid campuses, how fuel cells can handle spiky AI workloads using supercapacitors, and why a future high-voltage DC architecture could reshape data-centre efficiency. Finally, they look at pathways to cleaner fuels, including hydrogen, renewable energy-linked fuels like biogas/RNG, and carbon capture, plus the role of energy finance and green finance in accelerating climate change solutions across the energy transition.
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After more than a decade of flat demand, the US power sector is now facing explosive growth, arriving faster than grids, generation, and transmission can be built. In this episode, Interim host of Interchange Recharged Bridget van Dorsten is joined by Chris Seiple, Vice Chairman of Power & Renewables at Wood Mackenzie, to unpack one of the defining challenges facing the modern energy system: how utilities, developers, and policymakers are responding to an unprecedented surge in electricity demand driven by data centres, AI, and reshoring manufacturing.
Bridget and Chris explore what makes this moment different, why planning cycles are colliding with short technology investment horizons, and how this mismatch is forcing a fundamental rethink of how the power business works, from energy policy to energy finance. The main point is that the difference between regulated and deregulated markets is widening, as vertically integrated utilities strengthen their advantage in managing large loads.
New mechanisms like large-load tariffs are reshaping rate design, investment risk, and affordability - Chris explains how. Plus, deregulated markets may be approaching a tipping point, as traditional price signals struggle to accommodate demand arriving at this scale and speed. What does it all mean for energy?
Crucially, the episode looks beyond the immediate crunch to the longer-term implications for the energy transition. From renewable energy and solar energy pipelines to grid resilience, transmission innovation, and behind-the-meter solutions, this demand boom could become a powerful catalyst for clean tech, clean technology, and energy innovation, even as subsidy regimes change and capital costs rise.
The discussion also touches on the role of hydrogen, nuclear, and emerging grid technologies in supporting future energy projects, and why this period of rapid load growth may ultimately accelerate decarbonisation rather than slow it. If you’re tracking climate policy, climate change, green finance, and long-term energy predictions, this episode is for you; hear why today’s data centre boom could shape the next several decades of the power system.

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 recognised 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 here.
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Colombia’s power system was built around a powerful advantage: abundant hydropower backed by domestic gas, delivering electricity that was relatively cheap, relatively clean, and largely local. But that model is coming under pressure from two directions at once. Climate volatility is making dry years more dangerous, and gas is no longer the easy fallback it once was. As a potentially severe El Niño approaches, the central question is no longer just how much installed capacity the country has on paper. It is whether the system has enough firm, flexible energy to meet rising demand without driving up prices or risking shortages.
Host Sylvia Leyva Martinez is joined by Álvaro Villasante, Vice President of Business Management and Innovation at Grupo Energía Bogotá, to examine how that shift is changing the energy debate in Colombia. Their core argument is that hydropower remains a strategic strength, but it can no longer be treated as a sufficient foundation on its own. As gas production declines and imports become more important, the backup system is getting more expensive and more exposed, turning what used to be a relatively stable balance between hydro and thermal generation into a more fragile equation shaped by infrastructure, timing, and security of supply.
A large part of the discussion focuses on what can realistically be done before the next stress event arrives. Álvaro argues that long-term renewables auctions are directionally right, but they do little to solve an immediate risk window running through 2026 and 2027. In the near term, the priorities are more practical: manage reservoirs carefully, accelerate gas-import infrastructure, and treat demand response and energy efficiency as system tools rather than side issues. The broader lesson comes from Brazil, where a more diversified generation mix and stronger transmission buildout have made it easier to move power across regions and absorb volatility, offering a useful contrast for a Colombian system still trying to catch up on grid investment.
The episode also broadens the conversation beyond market design and megawatts. Álvaro makes the case that energy security is ultimately about people: whether infrastructure reaches communities, whether electricity remains affordable, and whether reliable access is treated as a development priority rather than an abstract policy goal. The takeaway is that Colombia’s next energy challenge will not be solved by one technology alone. It will be decided by how quickly the country can move from discussion to execution on gas, transmission, renewables, storage, and demand-side measures before climate pressure exposes the full cost of delay.
You can learn more about the solar schools Alvaro speaks about in this episode here: https://www.grupoenergiabogota.com/actualidad-geb/comunicados-2022/aulas-solares-interactivas-apuesta-de-innovacion-del-geb-para-cerrar-brechas

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 recognised 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 here.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

The pressure on the power system is no longer theoretical. AI, data centers, electrification, and new industrial load are arriving faster than utilities can build generation and transmission through conventional timelines. One of the least glamorous but potentially most consequential answers to that problem is how to get more capacity out of the wires already in the ground and hanging overhead.
Host Sylvia Leyva Martinez is joined by JD Sitton and Theodore Paradise of CTC Global to examine why advanced conductors are moving from a niche grid technology to a mainstream tool for utilities under pressure to deliver speed, affordability, and reliability at the same time. They explain how replacing traditional steel-core conductors with carbon-core alternatives can sharply reduce sag, increase thermal performance, and in many cases double capacity on existing rights-of-way without rebuilding towers or waiting a decade for a new line.
The conversation explores why that matters now. As Theodore argues, the grid was already under strain before AI accelerated the problem, with aging generation, load growth from electrification, and mounting congestion already testing the system. What changes in this moment is the pace. A reconductoring project can be completed in roughly 18 months, compared with five to seven years for a rebuild and 10 to 15 years for a new parallel line. JD and Theodore make the case that this speed advantage is not just about meeting data-center demand. It is also about cutting costs, easing permitting friction, reducing community opposition to new infrastructure, and improving safety by lowering the risk of heat-driven sag and vegetation contact.
Crucially, the episode asks what reliability should mean in a grid era defined by bigger load swings, tighter operating margins, and rising public scrutiny over cost. From wildfire resilience to real-time line monitoring and the ability to operate with greater confidence under stressed conditions, advanced conductors are presented not as a silver bullet, but as a proven, underused tool that could help utilities move faster and make better use of capital already committed to the system. The larger question running through the episode is whether the industry will look back on this moment and conclude that one of the simplest grid-capacity solutions was available all along.
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After a decade of flat demand, power markets are being forced to absorb a very different problem: rapid load growth arriving faster than transmission, large-scale generation, and utility interconnection processes can respond. The focus shifts from utility-scale procurement to the distributed edge of the system, where commercial and industrial solar, community solar, batteries, and microgrids may prove to be some of the fastest tools available for adding capacity, managing costs, and improving resilience.
Host Sylvia Leyva Martinez is joined by Tim Montague, host of Clean Power Hour and a longtime C&I solar operator and advisor, to unpack what distinguishes distributed generation from utility-scale solar in practice. Tim explains why the differences are not just about megawatts, but about interconnection, contractor capability, state policy, and execution risk. He also lays out how the phase-down of the ITC and the July 4 Safe Harbor deadline sharpened those differences: sophisticated developers with capital and pipeline visibility bought themselves runway through 2029, while smaller players that missed the deadline now face a much tighter path to commercial operation.
The conversation then turns to the economics and mechanics of the market. Tim argues that state-level frameworks remain decisive for C&I and community solar, pointing to states such as Illinois, New York, New Jersey, Massachusetts, Maryland, Minnesota, Colorado, and New Mexico as the sector’s core proving grounds. From workforce rules and training pipelines to tax-credit capture and commercial lending, he describes a market that is far more fragmented than utility-scale power, but also more flexible. Financing can range from a local business borrowing through its existing commercial bank to larger developers using institutional capital to safe-harbor equipment and scale portfolios, while PPAs remain available but often introduce longer, more complex contracting cycles.
Crucially, the episode looks at why distributed energy is moving from a niche resilience play to a system-level answer for affordability and speed to power. Rising electricity prices, data-center demand, and long utility interconnection queues are improving the case for solar-plus-storage behind the meter and at community scale. Tim makes the case that batteries, community solar, distributed computing, and eventually community-scale microgrids can complement, not replace, utility-scale buildout by delivering capacity where it is needed faster and with more local value. The core question running through the episode is whether the next phase of the energy transition will be defined not only by bigger projects, but by a more distributed grid architecture built for flexibility, resilience, and cost control.

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 recognised 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 here.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.