1 / 32

My Ton – Ecos Consulting Brian Fortenbery – EPRI Solutions Bill Tschudi – Lawrence Berkeley National Laboratory

DC Power for Data Centers – a demonstration. Open House Presentation Summer 2006 Sun Microsystems Newark, CA. My Ton – Ecos Consulting Brian Fortenbery – EPRI Solutions Bill Tschudi – Lawrence Berkeley National Laboratory. Sponsored by:

Olivia
Download Presentation

My Ton – Ecos Consulting Brian Fortenbery – EPRI Solutions Bill Tschudi – Lawrence Berkeley National Laboratory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. DC Power for Data Centers – a demonstration Open House Presentation Summer 2006 Sun Microsystems Newark, CA My Ton – Ecos Consulting Brian Fortenbery – EPRI Solutions Bill Tschudi – Lawrence Berkeley National Laboratory Sponsored by: California Energy Commission (CEC)─Public Interest Energy Research (PIER), California Institute for Energy Efficiency (CIEE).

  2. Welcome & Overview • Project background • Project objectives • Demonstration configurations • Technical & safety details • Project results Guided Tour of Equipment Questions/Answers/Discussion Open House: Agenda

  3. Thomas Edison: “My personal desire would be to prohibit entirely the use of alternating currents. They are as unnecessary as they are dangerous. I can therefore see no justification for the introduction of a system which has no element of permanency and every element of danger to life and property.”

  4. California Energy Commission Public Interest Energy Research High-tech Buildings Project Objectives • Research, develop, and demonstrate, innovative energy efficient technologies • 10-year initiative focusing on high-tech industries – e.g. data centers • Help move the market to more efficient technologies • Research and demonstration projects include technology transfer

  5. DC Demonstration – Timeline • Stakeholders first met – Fall 2005 • Kick-off meeting – April 2006 • Equipment assembly – May 2006 • Initial “Team Open House” June 7, 2006 • Public Open House events: June 21, July 12, 26; Aug 9, 16 • End date – August 16, 2006

  6. Industry Partners Made it Happen • Alindeska Electrical Contractors • APC • Baldwin Technologies • Cisco Systems • Cupertino Electric • Dranetz-BMI • Emerson Network Power • Industrial Network Manufacturing (IEM) Equipment and Services Contributors: • Intel • Nextek Power Systems • Pentadyne • Rosendin Electric • SatCon Power Systems • Square D/Schneider Electric • Sun Microsystems • UNIVERSAL Electric Corp.

  7. Other Partners Collaborated • 380voltsdc.com • CCG Facility Integration • Cingular Wireless • Dupont Fabros • EDG2, Inc. • EYP Mission Critical • Gannett • Hewlett Packard Stakeholders: • Morrison Hershfield Corporation • NTT Facilities • RTKL • SBC Global • TDI Power • Verizon Wireless

  8. Data Center Power Use • Data center power use nationally is large and growing. • Two studies estimated data center energy use: • 2004 EPRI/Ecos estimated 14.8 TWh • 2000 Arthur D. Little estimated 10.1 TWh • 0ne terawatthour = 1,000,000,000 kilowatthours or • one million megawatthours • Saving a fraction of this energy is substantial

  9. Loads Power delivery Cooling Cumulative Power Typical Data Center Power Use ~50% Power Efficiency 9 Source: Intel Corp.

  10. Power Consumption: 100 W System Load Load 100W Total 275W VR 20W PSU 50W Server fans 15W UPS +PDU 20W Room cooling system 70W source: Intel Corporation Source: Intel Corp. 10

  11. This demonstration focuses on reducing power delivery and conversion losses observed in our prior work: Power Supplies in IT equipment Uninterruptible Power Supplies (UPS)

  12. UPS and Power Supply efficiency • We observed a wide range of performance from the worst to the best • Our original goal was to move the market to the higher performing systems • Incentive programs, labeling, education programs were all options – and still are

  13. Data Center Power Delivery System DC/DC 78 - 85% UPS 88 - 92% Power Dist 98 - 99% Power Supply 68 - 72% The heat generated from the losses at each step of power conversion requires additional cooling power HVAC: Power for cooling can equal or exceed the direct losses

  14. Then we asked the question: Could some of the conversion steps be eliminated to improve efficiency? Could a demonstration be devised to measure actual savings?

  15. DC Demonstration - Objectives The demonstration’s original objectives were to show a rack level solution: • DC powered server equipment exists in the same form factor or can readily be built from existing components • DC powered server equipment can provide the same level of functionality and computing performance when compared to similarly configured and operating AC server equipment • Efficiency gains from the elimination of multiple conversion steps can be measured by comparing traditional AC delivery to a DC architecture • DC system reliability is as good or better than AC system reliability

  16. The project team rapidly defined additional objectives: • Demonstration of 380 V. DC distribution at the facility level compared to conventional AC systems • Demonstration of other DC solutions (48 volt systems) • Evaluation of safety considerations • Demonstrate ability to connect alternative energy solutions (PV, fuel cells, etc.)

  17. What the demonstration included • Side-by-side comparison of traditional AC system with new DC system • Facility level distribution • Rack level distribution • Power measurements at conversion points • Servers modified to accept 380 V. DC • Artificial loads to more fully simulate data center

  18. Additional items included • Racks distributing 48 volts to illustrate that other DC solutions are available, however no energy monitoring was provided for this configuration • DC lighting was included!

  19. Typical AC Distribution Today

  20. Facility-Level DC Distribution 380V.DC

  21. Rack-Level DC Distribution

  22. The layout you will see

  23. Details • Safety was reviewed by a committee of the partners. No significant issues were identified. Only concern was whether fault currents would be large enough to trip protective devices. • All distribution equipment is UL rated for DC applications • No commercially available DC connector exists in a size convenient for use with servers • Reliability should be improved – fewer potential points of failure. Eliminating heat sources should help. • Final report will address safety and applicable codes and standards

  24. Measured Results • Facility level overall efficiency improvement: 10 to 20% • Smaller rack level overall efficiency improvement but other benefits include: • Thermal benefits • Smaller power supply in server • Transition strategy for existing centers

  25. AC system loss compared to DC 9% measured improvement 2-5% measured improvement

  26. Implications could be even better for a typical data center • Redundant UPS and server power supplies operate at reduced efficiency • Cooling loads would be reduced. • The UPS system used in the AC base case system performed better than benchmarked systems – efficiency gains could be higher. • Further optimization of conversion devices/voltages is possible

  27. UPS XFMR PS Total Efficiency System Efficiency 87.00% 98.00% 90.00% 76.73% High Efficiency (DC Option) 92.00% 100.00% 92.00% 84.64% Compute Load (W) Input Load (W) Difference System Load 10,000 13032.03 High Efficiency (DC Option) 10,000 11814.74 9.34% Data Center Power Delivery System UPS 87 - 92% XFMR 98% - NA Power Supply 90 - 92%

  28. UPS XFMR PS Total Efficiency Typical System Efficiency 85.00% 98.00% 73.00% 60.81% High Efficiency (DC Option) 92.00% 100.00% 82.00% 75.44% Optimized DC Option 92.00% 100.00% 92.00% 84.64% Compute Load (W) Input Load (W) Difference Typical Load 10,000 16444.93 High Efficiency (DC Option) 10,000 13255.57 19.39% Optimized DC Option 10,000 11814.74 28.16% Data Center Power Delivery System UPS 85 - 92% Power Dist 98% - NA Power Supply 73 - 92%

  29. Results What does 15% increase in efficiency mean to the bottom line? Actual mileage will vary

  30. Results What does 15% increase in efficiency mean to the electrical power grid?

  31. See the results on-line • Actual results • Lawrence Berkeley National Laboratory websites for more information • http://hightech.lbl.gov/ • http://hightech.lbl.gov/dc-powering/

  32. Additional Information Project Coordination & Contacts: • My Ton, Ecos Consultingmton@ecosconsulting.com • Brian Fortenbery, EPRI Solutionsbfortenbery@eprisolutions.com Lawrence Berkeley National Laboratory • Bill Tschudi, Principal Investigator wftschudi@lbl.gov • Dr. Evan Mills, Press and publicity contact emills@lbl.gov THANK YOU FOR YOUR INTEREST!

More Related