Microsoft Backs Low-Carbon Cement Maker Fortera to Cut Data Center Footprint

Microsoft announced an investment in California-based green cement manufacturer Fortera through its Climate Innovation Fund, alongside a procurement agreement securing rights to purchase low-carbon cement from the company. Fortera's ReCarb technology produces cement with 70% lower CO2 emissions than conventional portland cement and is designed to integrate with existing cement plants without requiring new kiln infrastructure.

Cement production accounts for approximately 8% of global CO2 emissions, with over 900 kg of CO2 generated per tonne of material produced. Fortera's process transforms waste CO2 into feedstock within existing cement plant infrastructure, maintaining cost parity with ordinary portland cement while substantially reducing its carbon intensity. The company currently operates a 15,000 tonne per year facility, and Microsoft's Climate Innovation Fund investment will support construction of a full-scale 400,000 tonne per year commercial facility.

Microsoft has been systematically addressing the carbon footprint of its data center construction and operations as its infrastructure footprint expands rapidly to meet AI-driven demand. Previous moves include a low-carbon cement agreement with Sublime Systems, a green steel agreement with Swedish startup Stegra, and a commitment to pioneer wood in data center construction. The company has also updated construction contracts to include low-carbon material requirements and invested in multiple low-carbon building material companies through its Climate Innovation Fund.

Fortera's cement technology is particularly relevant at this juncture because it can retrofit into existing production facilities, addressing a major commercial barrier to decarbonizing the cement industry. Most competing approaches require new plant construction, creating prohibitive capital requirements for producers. Microsoft's procurement commitment provides Fortera with offtake certainty critical to securing project financing for the commercial-scale facility. As India's data center market expands rapidly, low-carbon construction materials will become an increasingly relevant area for developers seeking to meet sustainability commitments.

Key figure — 70% lower CO2 emissions vs ordinary portland cement