According to a report by Wired, Facebook plans to use its newest facility being constructed on its Prineville site to house a deep-storage device.

It said the 62,000-sq-ft build announced this week, nicknamed Sub-Zero, will be used for emergency backup powered by a new device Facebook engineers are currently working on.

Wired interviewed Facebook VP of site operations Tom Furlong who said the storage device will sit in a dedicated building optimized for its support.

News of Facebook’s new build on the site, already home to a data center more than 300,000 sq ft in size, broke after Facebook filed for planning approval this week.

Furlong said Facebook engineers are still some way off finalizing their design for equipment in the new storage facility but told Wired the idea would be to allow for storage drives in this secondary backup facility to be shut down until data is required.

“They hope to seriously cut power consumption with Sub-Zero. Right now a rack of Facebook servers burns about 4.5 kilowatts. In the Sub-Zero data center, the goal is to drop this to around 1.5 kWm,” the report said.

Furlong said the idea is to design large-scale deep archiving that provides capabilities similar to tape backup. “You have one that is pretty readily accessible, and you have one that does not need to be accessed except in the event of a true restore,” Furlong said.

He said once the facility is designed, Facebook will look at rolling out a similar one in Forest City, North Carolina.

It said its new technology should be ready in about six to nine months.