Apple — Maiden, North Carolina Data Center

Apple’s flagship data center campus in Maiden, North Carolina opened in 2012 and remains one of the company’s largest and most important US facilities. The campus spans roughly 500,000 square feet of raised floor space across multiple buildings on a 171-acre site and has been expanded several times since the initial Phase 1 construction. Maiden hosts the infrastructure that powers Siri’s backend processing, iCloud services, and increasingly the Private Cloud Compute (PCC) nodes that run Apple Intelligence workloads from iOS 18 onward.

Apple chose Catawba County for its access to Duke Energy’s power grid, available land, and proximity to major fiber routes connecting the eastern United States. The facility was among the first hyperscale data centers in the US to be powered entirely by renewable energy at launch — Apple built a 20 MW on-site solar array adjacent to the campus and a fuel cell installation using biogas. Additional renewable capacity comes from wind power purchase agreements across North Carolina and neighboring states. Apple has maintained 100% renewable power coverage for the Maiden facility since 2013.

The Maiden facility handles heavy AI inference loads. When a user asks Siri a complex question or uses an AI writing feature in iOS, requests too large for on-device processing are offloaded to PCC nodes in facilities like Maiden. Apple’s PCC architecture is designed with cryptographic attestation so that Apple itself cannot inspect the computation — a privacy property verified by independent security researchers. As Apple Intelligence expanded across iPhone, iPad, and Mac starting in 2024, Maiden’s AI inference capacity has grown accordingly, with Apple investing in new server generations equipped with Apple Neural Engine accelerators purpose-built for transformer inference.