Mills isn’t fully built out yet, and when it is, it will consist of 14 buildings, totaling more than 400,000 square feet. Its design is similar to the company’s existing campus at Reno Technology Park, called Project Mills. Codenamed “Project Huckleberry,” the plans call for a new shell with multiple data center clusters and a support building. The company has also filed for approval to build another massive data center campus adjacent to the existing Apple data center site in Reno, Nevada.

The facility will be powered entirely by renewable energy, supplied partially by a new local solar farm. Most recently, Apple announced it will spend $2 billion to convert a former 1.3 million square foot manufacturing plant in Mesa, Arizona, into a data center. Additionally, Apple makes significant use of major commercial content delivery networks to deliver software and digital files. Apple has publicly committed to powering its data centers entirely with renewable energy and does so by using a combination of solar and geothermal energy, as well as fuel cells that run on biogas. The company also leases space from colocation providers, but the bulk of its data center capacity is in company-owned facilities. It owns data centers in Oregon, North Carolina, California, and Nevada.

Like many content companies, Apple operates data centers on both coasts of the United States. How Extensive is Apple’s Internet Infrastructure? Here’s the Apple Data Center FAQ (or “Everything You Ever Wanted to Know About Apple’s Data Centers”). We’ve compiled our coverage of Apple’s data center expansion projects into a series of Frequently Asked Questions.

What’s Apple’s latest game-changing hardware design? The company is rapidly expanding its data center infrastructure to support its current and future Internet services, including iCloud. Apple has transformed digital music and mobile devices with iTunes and the iPod, iPhone and iPad.

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