Stack Infrastructure has broken ground on a 60MW data center expansion in Silicon Valley, California.

The IPI-owned company announced this week it has started building the expansion at its 100MW campus, located in San Jose.

Stack SV expansion
Stack Infrastructure breaking ground on expansion – Stack Infrastructure

The company plans to build two data centers to add 60MW of capacity, an advanced manufacturing facility, and a parking structure, spanning 19 acres. Other details of the expansion, including when operations are expected to begin, have not been shared.

Matt VanderZanden, COO of Stack, said: “Delivering responsible scale to our clients while positively impacting the region is paramount to our mission of contributing to a broad-based, sustainable economic future.”

The expansion is taking place on Stack’s 38-acre SVY01 campus, joining the two existing data centers on the site.

The first data center, SVY01A, has a total capacity of 9MW and spans 140,000 sq ft (13,000 sqm). SVY01B offers 32MW capacity over 240,000 sq ft (22,300 sqm).

The company also has a third facility located less than six miles away, Stack SVY02A, that has a capacity of 48MW over 560,000 sq ft (52,000 sqm).

The company said it has worked closely with local officials to 'ensure regional benefits' through added local investment and employment opportunities.

“I’m proud to see Stack build out new data storage and compute capacity in San Jose that will help us maintain our competitive edge as our booming AI sector puts ever-growing demands on critical technology infrastructure,” said Matt Mahan, San Jose mayor, who was in attendance alongside council member David Cohen.

Stack’s data center portfolio now includes 4GW built or under development and an additional 2.5GW of planned and potential expansion. The company has sites across 24 markets, including Stockholm, Sweden; Zurich, Switzerland; Osaka, Japan; Canberra, Australia; and Seoul, South Korea.