{"id":10278,"date":"2014-08-01T07:35:00","date_gmt":"2014-08-01T07:35:00","guid":{"rendered":"https:\/\/circutorweb.atic.blue\/?p=284"},"modified":"2014-08-01T07:35:00","modified_gmt":"2014-08-01T07:35:00","slug":"how-to-improve-efficiency-in-data-processing-centres-dpcs","status":"publish","type":"post","link":"https:\/\/circutor.com\/en\/articulos\/how-to-improve-efficiency-in-data-processing-centres-dpcs\/","title":{"rendered":"How to improve efficiency in Data Processing Centres (DPCs)"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>[togglergroup accordion=&#8221;true&#8221; style=&#8221;simple&#8221;]<\/p>\n<p>[toggler title=&#8217;The importance of knowing the PUE.&nbsp;Managing effective energy use&#8217;]<\/p>\n<p>We can calculate the <a href=\"https:\/\/circutor.com\/en\/training\/electrical-energy-efficiency\">energy efficiency<\/a>&nbsp;of any production system by comparing&nbsp;the useful energy with the total&nbsp;energy needed by the system. With this&nbsp;information and knowing where the&nbsp;inefficiencies are, we can achieve&nbsp;substantial savings and more environmentally&nbsp;friendly operations.<\/p>\n<p>As a practical example, an average data&nbsp;processing centre with installed power&nbsp;of 100 kW can achieve savings of&nbsp;\u20ac8,000 to -\u20ac16,000 in the electricity bill&nbsp;as a result of improved energy efficiency.&nbsp;To do so, it is as important to detect&nbsp;the points of consumption as it is to&nbsp;assess the corrective measures.<\/p>\n<table>\n<tbody>\n<tr>\n<td valign=\"top\">\n<p>The energy factor is so critical in data&nbsp;processing centres that it has its own&nbsp;indicator: <strong>PUE<\/strong> or <strong>Power Usage&nbsp;Effectiveness<\/strong>, defined by a standard&nbsp;issued by The Green Grid, a global&nbsp;environmental agency comprised of&nbsp;over 175 internationally renowned companies.<\/p>\n<p>The <a href=\"http:\/\/iet.jrc.ec.europa.eu\/energyefficiency\/ict-codes-conduct\/data-centres-energy-efficiency\">European Commission also has a&nbsp;code of conduct<\/a> for reducing the impact&nbsp;of data centres&#8217; growing energy&nbsp;consumption.<\/p>\n<p>It periodically publishes&nbsp;<a href=\"http:\/\/iet.jrc.ec.europa.eu\/energyefficiency\/sites\/energyefficiency\/files\/best_practices_v4_0_5-r1.pdf\">best practices for data processing&nbsp;centres, most recently in 2013<\/a>.<\/p>\n<\/td>\n<td>&nbsp;<\/td>\n<td style=\"width: 108px;\"><img loading=\"lazy\" class=\" size-full wp-image-269\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPD-code-conduct.jpg\" alt=\"FA-CPD-code-conduct\" width=\"108\" height=\"151\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>These centres have a peculiar profile&nbsp;due to their uninterrupted working&nbsp;hours. Because of the great importance&nbsp;of service continuity when powering&nbsp;servers, computers and communications,&nbsp;they have three main groups of&nbsp;units for their exclusive use:<\/p>\n<ul>\n<li><strong>Energy supply and control units<\/strong>&nbsp;(electricity and other sources, such as&nbsp;diesel oil, gas, etc.) essential for the&nbsp;functioning of these continuous&nbsp;operation units. This group includes&nbsp;supply connections and switchboards,&nbsp;lighting and refrigeration&nbsp;systems, air conditioning of the&nbsp;corresponding rooms, etc.<\/li>\n<li><strong>One or several units to supply<\/strong>&nbsp;power computer equipment (IT),&nbsp;comprised of UPS (Uninterruptible&nbsp;Power Supply) units .<\/li>\n<li>The <strong>distribution panels<\/strong> and&nbsp;systems for this energy to power the&nbsp;computer equipment.<\/li>\n<\/ul>\n<p>Broadly speaking, we can say that of&nbsp;the 100% total energy consumed in a&nbsp;DPC, 60% corresponds to the infrastructure&#8217;s&nbsp;electrical consumption and&nbsp;the remaining 40% to refrigeration&nbsp;systems.<\/p>\n<p>So we can undoubtedly see the need&nbsp;for coefficients (PUE) that make it&nbsp;possible to prepare comparative studies&nbsp;aimed at determining actions for&nbsp;optimising the energy consumption of&nbsp;these centres.<\/p>\n<p>[\/toggler]<\/p>\n<p>[toggler title=&#8217;Calculation guidelines&#8217;]<\/p>\n<p>As we have already seen, we normally&nbsp;use the standard issued by The Green&nbsp;Grid to calculate the <strong>parameters for&nbsp;DPC efficiency<\/strong>. We will distinguish two&nbsp;key indicators:<\/p>\n<p><strong>1.&nbsp;PUE: Power Usage Effectiveness,&nbsp;<\/strong>calculated with the formula:<\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-270\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPD-formula-1-en.jpg\" alt=\"FA-CPD-formula-1-en\" width=\"350\" height=\"42\" \/><\/p>\n<p><strong>2.&nbsp;DCE: Data Centre Efficiency,&nbsp;<\/strong>calculated as a percentage with the&nbsp;formula:<\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-271\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPD-formula-2-en.jpg\" alt=\"FA-CPD-formula-2-en\" width=\"350\" height=\"42\" \/><\/p>\n<p>In addition, the Environmental Protection&nbsp;Agency of the United States (EPA)&nbsp;provides the following PUE values as a&nbsp;reference:<\/p>\n<ul>\n<li>Historic 2.0<\/li>\n<li>Current trend 1.9<\/li>\n<li>Optimised operations 1.7<\/li>\n<li>Best practices 1.3<\/li>\n<li>State-of-the-art 1.2<\/li>\n<\/ul>\n<p>Companies like Google have gotten&nbsp;the average PUE of their DPCs&nbsp;down to 1.22, and sometimes as&nbsp;low as 1.15.<\/p>\n<p>In the historic frame of reference&nbsp;(PUE 2.0), typical consumption for&nbsp;different DPC elements is:<\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-272\" title=\"typical consumption for different DPC\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-desglose-EN.jpg\" alt=\"FA-CPDs-desglose-EN\" width=\"600\" height=\"471\" \/><\/p>\n<p>Therefore, one of the keys to the&nbsp;success of an energy improvement&nbsp;project is measuring the consumption&nbsp;of each unit type in order to be&nbsp;able to recognise the most affordable&nbsp;areas of improvement.<\/p>\n<p>There are <strong>three general measurement&nbsp;levels<\/strong>* shown in the table below, with&nbsp;measuring points that correspond to the&nbsp;indicators in the diagram also shown&nbsp;below, with energy measured in kWh. A&nbsp;12-month cycle is taken as a comparative&nbsp;reference for all levels.<\/p>\n<p>There is also a Level 0, which only&nbsp;includes power measurements (kW),&nbsp;measuring the general demand of the&nbsp;installation and that of the UPS output.<\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-273\" title=\"measuring the general demand\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-tabla-EN.jpg\" alt=\"measuring the general demand\" width=\"750\" height=\"184\" \/><\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-274\" title=\"PUE Efficiency Calculation Scale\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-escala-EN.jpg\" alt=\"FA-CPDs-escala-EN\" width=\"760\" height=\"1055\" \/><\/p>\n<p><strong>CIRCUTOR<\/strong> with its decades of experience&nbsp;in <a href=\"https:\/\/circutor.com\/en\/training\/electrical-energy-efficiency\">energy efficiency<\/a>, solutions, offers a&nbsp;wide range of products that facilitate&nbsp;continuous data gathering for controlling&nbsp;PUE and DCE, UPS unit performance,&nbsp;electric energy management and DPC&nbsp;maintenance. These include <a href=\"https:\/\/circutor.com\/en\/products\/metering\">energy&nbsp;meters<\/a>, <a href=\"https:\/\/circutor.com\/en\/products\/measurement-and-control\">power analyzers<\/a>, <a href=\"https:\/\/circutor.com\/en\/products\/protection-and-control\">ultra-immunised&nbsp;earth leakage protection<\/a>, <a href=\"https:\/\/circutor.com\/en\/training\/electrical-harmonics\">harmonic&nbsp;filtering<\/a> systems, <a href=\"https:\/\/circutor.com\/en\/products\/software\/powerstudio\/energy-management-software\">PowerStudio Scada<\/a>&nbsp;management software and <a href=\"https:\/\/circutor.com\/en\/products\/power-factor-correction-and-harmonic-filtering\">power factor&nbsp;correction<\/a> systems.<\/p>\n<p>[\/toggler]<\/p>\n<p>[toggler title=&#8217;CIRCUTOR\u2019s Solution with the SCADA system&#8217;]<\/p>\n<p>For the study, two implementation phases&nbsp;and a third study phase are required:<\/p>\n<ol>\n<li><strong>Measurement<\/strong>: with the addition of CVM&nbsp;power analyzer units, with their corresponding&nbsp;current transformers, equipped with&nbsp;RS485 serial communications to measure&nbsp;circulating energy.<\/li>\n<li><strong>Analysis<\/strong>: installing the PowerStudio&nbsp;Scada application, calculating and viewing&nbsp;the resulting values and running the&nbsp;corresponding reports.<\/li>\n<li><strong>Improvements<\/strong>: analysing the collected&nbsp;data lets us see which units are consuming.<\/li>\n<\/ol>\n<p style=\"text-align: center;\"><img loading=\"lazy\" class=\" size-full wp-image-275\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-fases-EEE-EN.jpg\" alt=\"FA-CPDs-fases-EEE-EN\" width=\"500\" height=\"728\" \/><\/p>\n<p>The application features:<\/p>\n<table>\n<tbody>\n<tr>\n<td valign=\"top\">A start screen in single-line diagram format (Fig.1) with data corresponding to all the concurrent energy types (converted to KWh).<\/td>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<td style=\"width: 600px;\"><img loading=\"lazy\" class=\" size-full wp-image-276\" title=\"single-line diagram\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-aplicacion1-EN.jpg\" alt=\"single-line diagram\" width=\"600\" height=\"422\" \/><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">A second summary screen (Fig.2) with performance calculations (Fig.3), enabling you to create and display reports with results for different periods (daily, weekly, monthly and yearly).<\/td>\n<td>&nbsp;<\/td>\n<td>&nbsp;<img loading=\"lazy\" class=\" size-full wp-image-277\" title=\"performance calculations\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-aplicacion2-EN.jpg\" alt=\"performance calculations\" width=\"600\" height=\"422\" \/><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">\n<p>By way of example, here are the screens displayed when installing CVM analyzers and programming a specific Scada application.<\/p>\n<p>On the first one you can see the installation diagram and unit connections; on the second one you can see the resulting data online for a single DPC; and on the third one is a weekly Level 1 report with continuous measuring frequency.<\/p>\n<\/td>\n<td>&nbsp;<\/td>\n<td>&nbsp;<img loading=\"lazy\" class=\" size-full wp-image-278\" title=\"Weekly PUE calculation report\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-aplicacion3-EN.jpg\" alt=\"Weekly PUE calculation report\" width=\"450\" height=\"554\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>[\/toggler]<\/p>\n<p>[toggler title=&#8217;CIRCUTOR\u2019s Solution with a local display screen&#8217;]<\/p>\n<p>For the study, two implementation&nbsp;phases are required:<\/p>\n<ol>\n<li>Addition of CVM power analyzer&nbsp;units with their corresponding current&nbsp;transformers, equipped with RS485&nbsp;serial communications to measure&nbsp;circulating energy.<\/li>\n<li>Addition of an <strong><a href=\"https:\/\/circutor.com\/en\/products\/measurement-and-control\/control-devices\/energy-manager\/eds-series-detail\">EDS energy controller<\/a><\/strong>&nbsp;with storage and data processing&nbsp;functions and its built-in programming,&nbsp;along with a local display screen.<\/li>\n<\/ol>\n<p>By way of example, here is the communication&nbsp;topology displayed when&nbsp;installing CVM analyzers, the EDS&nbsp;energy controller and the local display&nbsp;screen.<\/p>\n<p><img loading=\"lazy\" class=\" size-full wp-image-279\" title=\"Solution with a local screen\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-esquema-local-EN.jpg\" alt=\"Solution with a local screen\" width=\"750\" height=\"492\" \/><\/p>\n<p>[\/toggler]<\/p>\n<p>[toggler title=&#8217;How to improve the efficiency of a data processing centre&#8217;]<\/p>\n<p>To improve the efficiency of a data&nbsp;processing centre, we must follow&nbsp;measuring and analysis by implementing&nbsp;<strong>improvement actions<\/strong>. There are&nbsp;actions that do not require any investment,&nbsp;such as reducing the contracted&nbsp;power to save on direct costs, and other&nbsp;actions that do require investment, such&nbsp;as replacing units with more efficient&nbsp;ones.<\/p>\n<p>To organise these improvement actions&nbsp;you can prioritise them in accordance&nbsp;with the efficiency that can be achieved&nbsp;with each one. This prioritisation is&nbsp;calculated by comparing the improvement&nbsp;obtained with the investment&nbsp;required to make the improvement.<\/p>\n<table>\n<tbody>\n<tr>\n<td><img loading=\"lazy\" class=\" size-full wp-image-280\" title=\"Action priority\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/FA-CPDs-formula-EN.jpg\" alt=\"Action priority\" width=\"200\" height=\"105\" \/>&nbsp;<\/td>\n<td>&nbsp;<\/td>\n<td>\n<p>Pa: Action priority<br \/>CEa: Current energy consumption<br \/>CEm: Energy consumption with the new measure.<br \/>Investment: investment needed to achieve the savings<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Performing this calculation for each&nbsp;possible improvement action helps us&nbsp;prepare a list of actions and sort them&nbsp;from highest to lowest priority.<\/p>\n<p>Possible <strong>short-term measures<\/strong> include:<\/p>\n<ul>\n<li>Analysing <strong>usage patterns<\/strong> for the&nbsp;environments where they have been&nbsp;deployed.\n<ul>\n<li>Calculating the minimum&nbsp;server group sizes&nbsp;to maintain service&nbsp;levels.<\/li>\n<li>Switching off unused&nbsp;capacity, as long as&nbsp;proper availability is&nbsp;maintained.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Virtualisation and consolidation<\/strong><\/li>\n<li>Replacing <strong>hardware<\/strong>\n<ul>\n<li>Virtualising test environments.<\/li>\n<li>Replacing obsolete hardware.<\/li>\n<\/ul>\n<\/li>\n<li>Changes in <strong>room management<\/strong>\n<ul>\n<li>Correct control and adjustment of&nbsp;room temperature.<\/li>\n<\/ul>\n<\/li>\n<li>Changes to the&nbsp;<strong>refrigeration<\/strong> infrastructure.\n<ul>\n<li>New efficient refrigeration&nbsp;machinery.<\/li>\n<li>Hot aisle\/cold aisle layout.<\/li>\n<li>Elimination of &#8220;gaps&#8221; in the racks.<\/li>\n<li>Future: use of outside air.<\/li>\n<\/ul>\n<\/li>\n<li>Lighting optimisation<\/li>\n<\/ul>\n<p>For a more thorough list of Data Centre&nbsp;improvements, see the &#8220;<a href=\"http:\/\/iet.jrc.ec.europa.eu\/energyefficiency\/sites\/energyefficiency\/files\/best_practices_v4_0_5-r1.pdf\">2013 Best&nbsp;Practices issued by the European&nbsp;Commission&#8217;s Renewable Energies&nbsp;Unit<\/a>.&#8221;<\/p>\n<p>[\/toggler]<\/p>\n<p>[toggler title=&#8217;Conclusions&#8217;]<\/p>\n<p>DPCs (Data Processing Centres) are<strong>&nbsp;major consumers of electrical energy<\/strong>&nbsp;and their consumption can be divided in&nbsp;useful energy for computer equipment&nbsp;and the additional energy necessary for&nbsp;their smooth functioning. This energy&nbsp;consumption is so critical that it has its&nbsp;own indicator: <strong>PUE (Power Usage&nbsp;Effectiveness)<\/strong>.<\/p>\n<p>In DPCs with non-optimised PUEs, this&nbsp;additional energy can account for up to&nbsp;50% of the total energy, giving us good&nbsp;room for improvement. According to&nbsp;minimum availability requirements&nbsp;and the options for investment in&nbsp;improvements, savings of up to 20%&nbsp;of the total energy consumed can be&nbsp;achieved (or between \u20ac8,000-&nbsp;\u20ac16,000 a year in an average 100&nbsp;kW DPC).<\/p>\n<p>As we have seen in this article, it is&nbsp;possible to study and measure&nbsp;possible improvements to data&nbsp;processing centres. The key phases&nbsp;are installing energy measuring&nbsp;units, analysing the data gathered&nbsp;and making decisions based on that&nbsp;analysis.<\/p>\n<p><strong>CIRCUTOR<\/strong>, with its decades of&nbsp;experience in <a href=\"https:\/\/circutor.com\/en\/training\/electrical-energy-efficiency\"><strong>energy efficiency&nbsp;solutions<\/strong><\/a>, offers a wide range of&nbsp;products that facilitate continuous&nbsp;data gathering for control, maintenance&nbsp;and energy efficiency&nbsp;management of DPCs.<\/p>\n<p>[\/toggler]<\/p>\n<p>[\/togglergroup]<\/p>\n<table style=\"width: 100%; background-color: #eeeeee;\">\n<tbody>\n<tr>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<td style=\"width: 250px;\" colspan=\"7\" valign=\"top\">\n<p>Click here to download this document in PDF format&nbsp;<img loading=\"lazy\" class=\" size-full wp-image-37\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/04\/pdf.gif\" alt=\"pdf\" width=\"16\" height=\"16\" \/>&nbsp;:&nbsp;<a href=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/Article-CPD-ES.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" class=\" size-full wp-image-5\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/01\/es.gif\" alt=\"es\" width=\"18\" height=\"12\" \/><\/a>&nbsp;&nbsp;<a href=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/Article-CPD-EN.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" class=\" size-full wp-image-7\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/01\/en.gif\" alt=\"en\" width=\"18\" height=\"12\" \/><\/a>&nbsp;&nbsp;<a href=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/08\/Article-CPD-DE.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" class=\" size-full wp-image-9\" src=\"https:\/\/circutorweb.atic.blue\/wp-content\/uploads\/2014\/01\/de.gif\" alt=\"de\" width=\"18\" height=\"12\" \/><\/a><\/p>\n<\/td>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 100%; background-color: #eeeeee;\">\n<tbody>\n<tr>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<td style=\"width: 250px;\" colspan=\"7\" valign=\"top\">\n<p>Consult our&nbsp;<a href=\"https:\/\/circutor.com\/en\/sectors\/reference-list\/2368-data-processing-centre-success-story\">Success story in a Data Processing Centre<\/a><\/p>\n<\/td>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table style=\"width: 100%;\" align=\"left\">\n<tbody>\n<tr>\n<td style=\"width: 160px;\" valign=\"middle\">\n<h5 style=\"margin-top: 0px; padding-top: 0px;\">Contact us:<br \/>t. (+34) 93 745 29 00<\/h5>\n<\/td>\n<td style=\"width: 10px;\">&nbsp;<\/td>\n<td>\n<div class=\"button-blue\"><a href=\"https:\/\/circutor.com\/en\/how-to-buy\/contact\">Send enquiry<\/a><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; [togglergroup accordion=&#8221;true&#8221; style=&#8221;simple&#8221;] [toggler title=&#8217;The importance of knowing the PUE.&nbsp;Managing effective energy use&#8217;] We can calculate the energy efficiency&nbsp;of any production system by comparing&nbsp;the useful energy with the total&nbsp;energy needed by the system. With this&nbsp;information and knowing where the&nbsp;inefficiencies are, we can achieve&nbsp;substantial savings and more environmentally&nbsp;friendly operations. As a practical example, an average [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":269,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1138],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to improve efficiency in Data Processing Centres (DPCs) - CIRCUTOR<\/title>\n<meta name=\"description\" content=\"We can calculate the energy efficiency of any production system by comparing the useful energy with the total energy needed by the system. 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