Provided by: University of California, Riverside (Student Affairs)
Topic: Big Data
Date Added: Sep 2013
Peak power shaving allows data center providers to increase their computational capacity without exceeding a given power budget. Recent papers establish that machines may repurpose energy from Uninterruptible Power Supplies (UPSs) to maintain power budgets during peak demand. In this paper, the authors' demonstrates that existing studies overestimate cost savings by as much as 3.35x because they use simple battery reliability models, Boolean battery discharge and neglect the design and the cost of battery system communication in the state-of-the-art distributed UPS designs.