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Increasing Data Center Efficiency by Using Improved High Density Power Distribution


High density server installations where racks can draw from 10 kW to 40 kW per rack place significant strains on the standard power distribution system found in large American data centers.

This increased rack power density is causing:

  • Multiple branch circuits per rack, with corresponding breakers and cabling
  • PDUs to become up to 30% of the floor space
  • PDUs to become up to 30% of the floor weight loading
  • More PDUs installed per IT rack, driving up capital costs

However, these problems are unique to North America. In Europe and the rest of the world the power distribution system is simpler and more efficient. This paper shows that it is practical to take the power distribution system used in the rest of the world and apply it to North American data centers to reduce cost, reduce weight, save floor space, and increase electrical efficiency.


Neil Rasmussen Chief Technical Officer, American Power Conversion Neil Rasmussen is a founder and the Chief Technical Officer of American Power Conversion. At APC, Neil directs the world’s largest R&D budget devoted to power, cooling, and rack infrastructure for critical networks, with principal product development centers in Massachusetts, Missouri, Denmark, Rhode Island, Taiwan, and Ireland. Neil is currently leading the effort at APC to develop modular scalable data center solutions.
Schneider Electric
29 Apr 2009
01 Jan 2006
10 Page(s)
White Paper

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