Microsoft reached a significant milestone in data centre sustainability in 2024, achieving a 90.9 percent reuse and recycling rate for servers and components. This performance exceeded the company’s 2025 target of 90 percent, delivering results a full year ahead of schedule and positioning Microsoft as a leader in circular economy practices within digital infrastructure.

The milestone demonstrates that circular design principles can scale alongside operational efficiency in one of the world’s most resource-intensive technology environments.

Building a Global Network of Circular Centers

Central to this progress is Microsoft’s Circular Centers programme, which focuses on extending the life of data centre hardware and maximising material recovery. The first Circular Center opened in Amsterdam in March 2020, marking Microsoft’s initial move toward large-scale server reuse.

Since then, the company has expanded operations to Dublin, Boydton (Virginia), Singapore, and announced further centres in Cardiff (Wales), New South Wales (Australia), and San Antonio (Texas). These facilities manage decommissioned hardware by sorting, testing, and directing components for reuse, resale, donation, or responsible recycling.

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Internal Reuse and Material Recovery at Scale

In 2023, Microsoft launched an internal hardware reuse programme that tripled in scale during 2024. As a result, the company reused more than 3.2 million server components in a single year, including processors and memory modules, delivering a 30 percent increase in total value recovery.

Alongside reuse, Microsoft partnered with Western Digital and specialist recyclers to process approximately 50,000 pounds of retired hard drives in 2024. This effort enabled the recovery of rare and critical materials such as neodymium, praseodymium, dysprosium, gold, and copper, while cutting emissions by 95 percent compared with conventional mining methods.

Reducing Waste Through Packaging Innovation

Circularity efforts extend beyond hardware itself. Microsoft has redesigned packaging used in data centre logistics, with more than 30,000 server racks passing through its global packaging recycling programme. This initiative diverted over 2,500 metric tonnes of waste from landfill, reducing both material waste and supply-chain emissions.

AI-Driven Systems Enable Zero-Waste Planning

Microsoft’s circular strategy is underpinned by its Intelligent Disposition and Routing System (IDARS), a planning platform that develops a zero-waste pathway for every hardware asset. Integrated with Dynamics 365 Supply Chain Management and the Microsoft Power Platform, IDARS uses AI and machine learning to determine optimal reuse, recycling, or disposal routes while maintaining regulatory compliance and data security.

According to Microsoft, this system not only reduces waste but also lowers costs and improves operational efficiency across its data centre fleet.

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Extending Impact Beyond Microsoft’s Operations

The Circular Centers model also delivers broader social and economic benefits. Facilities such as the upcoming Cardiff site are expected to support local recycling ecosystems, logistics providers, and training organisations, contributing to job creation and skills development.

Decommissioned servers are being repurposed for technical training in schools, while partnerships in Asia enable reused memory components to be incorporated into consumer electronics and educational devices.

Circularity Within a Wider Sustainability Strategy

Microsoft’s data centre circularity achievements form part of its broader sustainability commitments, including goals to become carbon negative, water positive, and zero waste by 2030, and to protect more land than it uses by 2025.

With millions of servers supporting the Microsoft Cloud across more than 60 global regions, circular economy practices are increasingly critical to decoupling infrastructure growth from environmental impact.

As Microsoft’s Chief Sustainability Officer Melanie Nakagawa noted, the 2024 milestone reflects how material recovery and system redesign can conserve resources, reduce emissions, and demonstrate that circularity delivers tangible benefits for both business performance and environmental outcomes.

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