Opportunity of Energy Saving in electrical path is lesser as compared to other areas

Transcription

1 Data Centre Power Map ` Energy Optimization Techniques Data Center Power Chain Venkat Rao B Country Manager Power Products Data Center Power Draws Cooling About % Sources of Energy Waste Fans / Blowers running on redundant units Opportunity of Energy Saving in electrical path is lesser as compared to other areas Lack of air containment (cable openings, room leakage) Every WATT saved is WATT produced Unit cycling Lack of humidification control Mixing of Hot and Cold air Excess fan energy that turns into heat Source: EYP Mission Critical Facilities Inc., New York Copyright 2006 Lieb ert Corpo ration. All rights reserved. Defining the Space - The Critical Path Data Center Assessment : Power Audit Electrical Energy Mgmt Thermal Energy Mgmt Facility Power Audit Utility Gen Set ATS TVSS LV SG Batteries STS/ AC / DC Distr UPS Rack UPS Racks Server PStrips Rack Coolers Room AC XD Heat Reject TVSS Design Determines Health And Integrity Of The Data Center s Power Infrastructure Determine Loading And Capacity Of Electrical Equipment Single Point Of Failure Analysis One-line Drawing Verification Harmonic Snapshot Recommendations To Maximize

2 Data Center Power Costs Power Chain -Evolution Power required by data center equipment 3 megawatt Cost of cooling, lighting, power-distribution losses + 3 megawatt Total power requirements 6 megawatt Cost per kilowatt-hour in USD $0.10/KwHr Annual electricity cost in USD for 24/7 operation $5,256,000 Annual savings in USD from a 10% efficiency increase $526,000 Source: Computerworld, Doing the Math, April 3, 2006 Infrastructure Strategy Evolution Approaches to consider will be determined by your Business Model ability to balance risk with cost Requirements are Absolute Classification Traditional, Proven Methods vs. Minimize TCO Cost without sacrificing any availability Balance Cost of Av ailability with TCO Measured Risk Trade calculated availability level for reduced TCO Risk-Taker Use unproven technologies with little long term reliability data Motivation Around Cost Focus on SLA over Hardware Experimental Develop new technologies to support big shift in cost structure Lesson learned to manage availability/risk 6 Anticipate & Adapt To Change Fault Tolerant Power Architecture

3 Harmonic Control Techniques Active Harmonics Filter Survive Causes De-rate Up-stream equipments Isolate Isolate harmonic from Non harmonic load Line Reactors or Isolation transformers Divert Use tuned filters Cancel Use phase shifting techniques Neutralize Active Harmonic Filter Non Linear Load SMPS, DC Power Supply UPS, Frequency Converter Features: Modular and easy to extend Compensate up to 51st harmonics Compensation up to 12 different harmonics simultaneously Power Factor Correction & Current Harmonic Reduction No problem of overload & Shunt connection, easy for maintenance Benefits Saving in Energy Bill PF improvement towards unity Source gets relieved of excess stress DG, breaker sizing and cables gets reduced Low heating due to reduced harmonic currents in cables/ distribution systems. Active Harmonics solution Distorted Input AF ON Corrected Input Uninterrupted Power Supply Power Systems Require More Than Just a UPS Customer s Expectations Improved cost of Ownership Saving on Energy Bill & Investment Cost High, Reliability & Protection Switchgear Scalability, Modularity & Adaptability Low MTTR UPS Batteries 12

4 Infra NXt Solution UPS System High Power Density Up to 96% Efficiency Look for Power, Space & High Efficiency through load range Reduced Footprint High Xtreme Value Go for UPS with Non-Distorting input Specs >0.95 Input Power Factor & <5% THDi Ensure UPS Output is compatible with Unity/Leading Power Factor servers kva = kw 0.9 Lead to 0.9 Lag Improved MTTR & availability Efficiency Trend Case Study : UPS Efficiency Savings Efficiency % Commercial Tariff : Cost Based on Rs. 7 per kwh 97.00% 96.00% 95.00% 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 88.00% 10% 25% 50% 75% 100% Operating range Liebert NXr / ITA Annaul Energy Traditional UPS (@96%) Energy Cost Savi ng A nnaul Air Con. Total Annaul Saving (@92%) Energy Charges (in INR) (in INR) Saving (in INR) S avi 10 Years Charges (in INR ) (A) (B ) (C=A -B) (in INR) (D) E =(C+D) (In INR) Rating (kva) 30 1,999,565 1,916,250 83,315 35, ,022 1,190, ,999,130 3,832, ,630 71, ,043 2,380, ,998,696 5,748, , , ,065 3,570, ,998,261 7,665, , , ,087 4,760, ,997,826 9,581, , , ,109 5,951,090 Industrial Tariff : Cost Based on Rs. 5 per kwh Lieber t NXr / ITA Annaul Energy Traditional UPS (@96%) Engery Cost Saving Annaul Air Con. Total Annaul Saving (@92%) Engery Charges (i n INR) (in INR) Saving (in (in INR) 10 Years Rating (kva) Charges (in INR ) (A) (B) (C=A -B) INR ) (D) E =(C+D) (in INR) Load % >96% efficiency: 45~75% load 30 1,428,261 1,368,750 59,511 25,505 85, , ,856,522 1,737, ,022 51, ,031 1,700, ,284,793 4,106, ,533 76, ,047 2,550, ,713,043 5,475, , , ,062 3,400,620 >95% efficiency: 25% load >94% efficiency: 20% load 150 7,141,304 6,843, , , ,078 4,250,780 * The prices assumed are average prices of electricity in India.

5 System Efficiency Reality Check Dynamic Capacity Modulation Operating Range Expected operating Band Reasons Attributable for Low Efficiency 100 % Reality 90% 80% Sizing Method of UPS %Effici ency 70% 60% Design & Safety Margin 50% 40% Capacity Building for redundancy 30% 20% 10% 0% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% % Load Intelligent paralleling In a 1+N system, if the load is much less than the connected modules, one or more module would be idled Improves efficiency without compromising availability Track each module s off-line hours and schedule other modules to be off-line to distribute the operating hours to all modules Just like rotating your tires Energy Optimizer / Intelligent Paralleling Optimally load each UPS in a multi UPS parallel system, so that each UPS works in its most efficient band of operation All UPS units running when load is high Dynamic Capacity Modulation Dynamic Capacity Modulation Features Scheduling on Load Profiling Track each module s off-line hours Cyclic Operation/Team work Benefits More Energy modules Saving (N) and Dynamic switching achieve Improved TCO better energy optimization. Tow (2) UPS units in sleep mode when load is low. But does any thing limit N? Application Data Center IT Park / Telecommunication Industry

6 What should be the N -? Energy Optimizer Case Study System Reliability % 78% delivers 0.75 maximizes Module reliability MTBF:15 years 0.70 Beyond Beyond 5+1, 5+1 Single Module 0.65 single module Module looks more MTBF:10 years more reliable 0.60 Reliable Low Modularity Thus the need for trade off between Reliability and energy optimization System Configuration High Modularity Module MTBF:20 years Load Study with and without Energy Optimizer PDU Power Distribution Unit Adaptive Power Architecture Intelligence built in for, Comprehensive Monitoring & Communication capabilities Branch Monitoring Built in Isolation / K Transformers for, Locally derived Computer Grade Neutral Minimized Ground Neutral Voltages K Rating for enhanced Harmonics handling Significant Savings by, Adoption of 3 Phase 3 Wire Distribution Recommended by IEEE, other agencies Optimized Building Blocks Maneuver in any direction Tomorrow Yesterday Today Capacity Create systems of any size Monitor it too! with common technologies Tier 4 Dual Buss + 2X N N 1+1 Tier 3 Tier 2Single Buss Configure for Cost Pay as you grow capability Linear Scalable Model Adaptive best cost model Capacity

7 Adaptive Architecture Modular Standard units with fixed sizes that worked together. Cost savings by retaining initial investment. Added redundancy. Scalable Flexibility with internal modularity. A unit with single direction for growth. Adaptive Reliability that can deal with uncertainty from module to system. Beyond Modular, Scalable- Adaptive Flexibility for changing requirements in capacity, density and availability Lowest Total Cost method for capital and operating expenses. Thank you