The Facebook Prineville Data Center is looking at the end of the year and the beginning of 2013 to come online with building 2

by: RAMONA MCCALLISTER/CENTRAL OREGONIAN - The footprint of building two will be a mirror image of building one at the Prineville Facebook Data Center.

The Prineville Facebook Data Center is expanding its footprint off of Tom McCall Road, and with each expansion, they are learning from the past.
   Facebook spokesperson Lee Weinstein said that in building 2, 2-A will come online at the end of the year, and 2-B will come online at the beginning of 2013. They have built the shell for 2-C and 2-D, but the data center is waiting for Facebook to authorize the construction of the interior.
   “It’s pretty much a mirror of this building,” said Weinstein of the two buildings. He commented that they gain efficiency each time they construct a new building. From a footprint perspective, the buildings are mirror images.
   “This building has influenced North Carolina and it is influencing Sweden, as well,” he said.
   Facebook has recently completed construction on a data center in North Carolina, and their first in Europe — nearing completion in Lulea, Sweden. According to Weinstein, they learned a lot from the construction of the data center in Prineville, and this knowledge has translated to the efficiency and construction in Sweden and North Carolina.
   In Prineville’s newest addition, the differences on the outside aren’t really apparent, but inside the walls of building 2, a new water cooling system is being put in place.
   “Over there (in building 2), we’re trying out a new system called Munters,” said Weinstein.
   He explained that the biggest difference is that in building 1, they have spray bars that dispense aerosol water. The misting technology is used for part of their cooling system. In building 1, the water is treated through a reverse-osmosis system. Weinstein noted that Facebook is going to compare the two systems and see how the water and energy efficiency compare.
   In building 2, the cooling system will use straight well water, and the water will trickle over a system called Munters media. This high-efficiency evaporative cooling media involves specially-designed pads that are engineered to provide maximum cooling and humidification and low pressure drops. The water is passed through this system rather than the water being passed through the misting system used in building 1.
   “With the spray or misting system that we use, you have to have really clean water with nothing at all in it,” noted Weinstein. “We don’t have to treat this water.
    “The learning that we are going to have here influences everywhere else — including Facebook’s second building in Prineville.”
   Facebook also worked with Pacific Power to extend the utility capacity on their site, and have added to their switching gear and substation to support their operations.
   “All utilities have different policies and funding mechanisms to support expansion of their systems,” said Weinstein. “Facebook has reimbursed Pacific Power in accordance with their policy and have funded full construction of our onsite sub-station.”
   Another change for the property includes an easement that will allow them to connect a road to the old Houston Lake Road, south of the data center. The new loop will be called Social Loop.
   “That basically opens up that whole property south of us for access,” said Weinstein. “It really allows that to be available and accessible.”
   They will move their security kiosk closer to building one and two, more towards the back of the property from Tom McCall Road.
   “With Facebook being here, there are just other opportunities that open up as a result of that,” he concluded. “So this road that can be put through there now — opening up what will be called ‘Social Loop’ all the way, just opens up everything on this plateau that we are on for potential development.”
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