Fuel cells are powering AI data center demand: they’ve moved from interesting clean tech to major player

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 Betheja, 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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