Hardware Podcasts

Reinventing Cement: The Breakthrough That Could Cut 8% of Global Emissions with Greg Williams

Hardware to Save a Planet · 27 Mar 2025 · 48m · Episode 75

What this episode covers

Greg Williams, VP of Product at Sublime Systems, explains how the company uses an electrochemical process to produce low-carbon cement, eliminating the fossil-fueled kilns and limestone decomposition emissions that account for 8% of global CO2 output. He details Sublime's strategy to achieve cost parity with Portland cement through economies of scale and technology improvements, while partnering with industry giants like Holcim and CRH to accelerate deployment. Williams also discusses the 'book and claim' model, exemplified by a deal with Microsoft, which allows customers to purchase environmental attributes separately from the physical product to offset Scope 3 emissions.

Most relevant to

companies scaling up

Topics

Mentioned

Companies
Holcim, CRH, Microsoft, ZeroAVIA, Synapse, Department of Energy, Rocky Mountain Institute, Kindred, Apple

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