DuPont Fabros Technology Opens Energy-Efficient Mega Data Center on Its Ashburn Campus

DuPont Fabros Technology Inc. (NYSE: DFT), owner, developer and operator of large multi-tenant wholesale data centers with 11 colocation facilities located in four major U.S. markets, has opened its newest data center, ACC7, at its Ashburn, Virginia, corporate campus. ACC7 contains 446,000 gross square feet and can deliver 41.6 megawatts of critical power when fully developed. 

DFT’s newest data center in Ashburn, Virginia, is one of the largest multi-tenant data centers in North America and features a highly energy-efficient design. It is the sixth data center on DFT‘s 1.6 million square-foot Ashburn campus and also the largest data center in the company’s portfolio.


ACC7 is the first facility to fully utilize DFT’s newest data center design. The facility offers a high degree of flexibility and features a medium voltage (4,160V) electrical distribution system and an Isolated-Parallel UPS topology providing customers with a variety of space offerings, cabinet layouts and power densities across 28 computer rooms.

DFT’s ACC7 data center facility contains 446,000 gross square feet.

Each base computer room is approximately 8,500 gross square feet, delivers flexible power from 1.0 to 2.0 megawatts of critical load capacity and can house approximately 378 2ˈ x 4ˈ server cabinets.

The Ashburn corporate campus is supported by more than 25 telecommunication carriers and LINX NoVA, a member-owned Internet exchange point for the Northern Virginia region which is operated by the London Internet Exchange (LINX).

PUE of 1.15

The data center features a calculated annualized Power Usage Effectiveness (PUE) of 1.15 by virtue of a highly efficient cooling plant and medium voltage oil-filled PDUs (power distribution units).

DFT is now using reclaimed water in the building’s evaporative cooling plant, reducing consumption of potable water. ACC7 operates on 12 centrifugal chillers plus heat exchanger lineups with 1,400 tons capacity each, in addition to an above-ground 80,000 gallon chilled water storage tank.

“Minimizing our environmental footprint is always at the forefront of our design approach to data centers,” said Scott Davis, Executive Vice President of Operations for DuPont Fabros Technology. “Many of our customers have pledged corporate social responsibility, and DFT wants to support their green business practices by designing energy efficient buildings and limiting our use of potable water, a precious resource. Switching to reclaimed water for evaporative cooling at the Ashburn corporate campus reduces the cost of water consumption by 50 to 65 percent, giving our customers additional cost savings.”