The rise of metal fuels

The rise of metal fuels

Diesel generators remain ubiquitous because they offer an unusually powerful combination of low cost, high energy density, long-duration storage, and reliable off-grid power. But their pollution, noise, maintenance requirements, permitting challenges, and growing footprint are becoming increasingly problematic as data centers drive demand for backup generation. In this episode of Catalyst, Shayle Kann talks with Richard Wang, co-founder and CEO of Voya Energy, about the company's effort to replace diesel generators with generators powered by aluminum. Richard explains why diesel has been so difficult to displace, why natural gas and batteries fall short for some backup applications, and how Voya's electrochemical generator uses aluminum pellets and air to produce electricity. Unlike combustion-based generators, the system is designed to operate without air emissions, while offering high energy density, quiet operation, rapid startup, and long-duration capabilities. The conversation also explores aluminum's potential as a globally transportable energy carrier and why low-grade scrap aluminum could provide Voya's initial fuel supply. Richard and Shayle discuss: The global diesel generator market and why diesel remains dominant Why natural gas generators and batteries haven't displaced diesel Aluminum as a high-energy-density fuel How Voya Energy's electrochemical aluminum generator works Voya vs. diesel on cost, footprint, power quality, and runtime Using Voya generators as grid assets and battery alternatives Why metal fuels are becoming viable now Using low-grade scrap aluminum as fuel and the long-term vision for recyclable aluminum energy storage Credits: Hosted by Shayle Kann. Produced and edited by John Sheehan. Original music and engineering by Sean Marquand. Stephen Lacey is our executive editor. This episode of Catalyst is brought to you by ENGIE, the smarter energy supplier. ENGIE doesn't just provide the power to run your business — they supply the energy to move it forward, with reliable, flexible solutions built for what's next. Learn more at engieresources.com. Catalyst is brought to you by EnergyHub. Peak season puts every grid to the test — and the utilities that pass are the ones that built flexible capacity before they needed it. EnergyHub works with more than 170 utilities to coordinate 2.5 million devices and 3.4 gigawatts of dispatchable flexibility through a single platform designed to perform when it counts most. See what that looks like at EnergyHub.com. Catalyst is brought to you by Bloom Energy. Bloom Energy fuel cells deliver affordable, ultra-reliable onsite power for hospitals, utilities, and data centers – at speed and at scale. Learn more by visiting BloomEnergy.com.

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