Energy-saving paper presented at the EPA Energy Star Conference

22 February 2006 News

Power-One presented a technical paper at the EPA Energy Star Server and Data Centre Conference held in January at Sun Microsystems Conference Facility in Santa Clara, USA.

Power-One was the only power-conversion equipment manufacturer selected by the review committee to present a technical paper to support the first-day theme: 'Enterprise servers and data centres: opportunities for energy savings'. According to the conference's draft summary of hindrances to increased energy efficiency in servers and data centres: "Servers continue to become more pervasive and more powerful, a combination that has greatly increased energy consumption by these devices.

"Energy inefficiency places a financial burden both on customers - paying to maintain ideal operating conditions - and on manufacturers - paying to develop methods to push the thermal limits of component materials as the increased heat generated by server components climbs higher."

Power-One's presentation called: 'Adaptive/intelligent control and power management reduces power dissipation and consumption,' demonstrated how implementing intelligent/adaptive and activity-based methodologies could reduce power losses by 20%; providing annualised savings of $23 000 to $43 000, depending on data-centre size.

Intelligent/adaptive management continually adjusts the internal operating parameters of AC/DC front ends and DC/DC converters, in order to optimise efficiencies and key performance parameters. Activity-based management reduces power dissipation and consumption by controlling the intermediate bus voltage, clock frequencies, and cooling fan speeds.

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