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High-Performance High-Tech Buildings Project Laboratories, Cleanrooms, and Data Centers. August 4, 2005. Lawrence Berkeley National Laboratory Bill Tschudi Dale Sartor http://hightech.lbl.gov. Public Interest Energy Research (PIER) California Institute for Energy & Environment (CIEE).

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  1. High-Performance High-Tech Buildings Project Laboratories, Cleanrooms, and Data Centers August 4, 2005 Lawrence Berkeley National Laboratory Bill Tschudi Dale Sartor http://hightech.lbl.gov Public Interest Energy Research (PIER)California Institute for Energy & Environment (CIEE) Page 1

  2. California energy research related to data centers • Energy research roadmap • Case studies and energy benchmarking • Best practice identification • Self benchmarking protocol • Investigate efficiency of IT power supplies • Investigate efficiency of UPS systems • Metrics for computing performance vs. energy • Technology transfer • Demonstration projects 2

  3. Efficiency Ideas Many areas for potential efficiency improvement are suggested in the research roadmap – available here: http://datacenters.lbl.gov/docs/RoadmapFinal.pdf 3

  4. Current PIER data center & IT equipment activities • Benchmarking and Best Practices identification • Research-directed benchmarking • Self-benchmarking protocol • Summary of best practices observed • Improve uninterruptible power supplies (UPS) • Develop performance metrics • Improve power supplies in IT equipment 4

  5. Preliminary findings: • Infrastructure is typically oversized by factors of 4 or more for today’s loads • Heat intensity is rising however computing capability is rising faster • There is wide variation in intensity and efficiency • Well studied efficiency measures (chilled water optimization, lighting controls, etc.) are not implemented • Controversy over use of some technologies • Industry is concerned – but more for ability to cool rising heat intensity – not efficiency 5

  6. High-tech demonstrationprojects • LBNL scoped 15 potential demonstrations • 5 demonstrations were selected including DC powering rack of computers 6

  7. LBNL Bill Tschudi (PI) Dale Sartor Evan Mills Steve Greenberg Subcontractors Ecos Consulting/EPRI Solutions (Power Supply and UPS evaluations) DC Power Demonstration Project Team • Industry partners • EYP Mission Critical Facilities (Data center benchmarking data collection) • TBD - Cost sharing required 7

  8. New additions to the project: • DC powering rack of computers (why we are here) • Design process – issues in planning a supercomputer center • One year schedule 8

  9. Wide range of efficiencies: HVAC effectiveness varies Watts/sf 9

  10. The opportunity: power conversion The loss in electrical power through conversion of AC to DC to AC to DC occurs for all power flowing to the IT equipment. Efficiency gains have a magnifying effect by reducing need for HVAC (e.g. 10% saving at the UPS level could mean 20% saving for the datacenter) 10

  11. UPS measured efficiency Typical operating range 30-50% Double conversion efficiency ranged from 86% to 97% at peak load, but efficiency under typical operating loads ranges from 81% to 93% 11

  12. Power Supply Findings: Typical operating range is 30%-50% to provide redundancy 20% variation in worst to best 12

  13. Today’s goal: Help us define demonstration project Identify Industry partner roles and resources Identify barriers and plans to overcome them Clear action plan 13

  14. Bill Tschudi wftschudi@lbl.gov 510-495-2417 http://hightech.lbl.gov 14

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