[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"hub-part-en-part-4-6-erf":3,"$f2fduox5y9si9r":221,"$f13cypio6dlew1":309,"newsroom-has-articles-en":367,"seminar-cards-en":370},{"number":4,"slug":5,"slugEn":6,"group":7,"designation":8,"title":9,"edition":10,"vde":11,"iso":12,"checkedAt":13,"revisionOngoing":14,"intro":15,"about":27,"requirements":32,"misconceptions":80,"practice":95,"status":123,"faq":142,"seminars":175,"sources":182,"terms":187,"glossary":203,"prev":209,"next":215},"4-6","teil-4-6-erf","part-4-6-erf","kpi","EN 50600-4-6","Energy Reuse Factor (ERF)","2020-07","VDE 0801-600-4-6","ISO\u002FIEC 30134-6","2026-09-17",false,{"segments":16,"ref":26},[17,20,24],{"type":18,"html":19},"html","EN 50600-4-6 defines the ",{"type":21,"text":22,"anchor":23},"term","energy reuse factor","erf",{"type":18,"html":25}," (ERF): the share of total energy consumption that is reused outside the data center boundary and replaces other energy there. For data centers that have started operation since July 2026, the German Energy Efficiency Act (EnEfG) requires minimum shares according to this very standard.",null,{"segments":28,"ref":31},[29],{"type":18,"html":30},"Part 4-6 establishes the ERF as an indicator, defines measurement, calculation, and reporting, and distinguishes it from the PUE. It is aimed at data center managers, operations managers, ICT managers, and general contractors who supply waste heat to third parties or plan to do so. The ERF assesses the quantity of energy supplied, not the efficiency of the process that uses it outside; the standard contains no limit or target value","(EN 50600-4-6:2020, Introduction and Clause 1).",[33,40,47,59,66,73],{"title":34,"text":35},"The ERF is an annual value between 0 and 1.",{"segments":36,"ref":39},[37],{"type":18,"html":38},"It divides the energy reused outside by the total energy consumption of the data center. At 0, nothing is reused; at 1, theoretically everything.","Clause 5.",{"title":41,"text":42},"Only what leaves the boundary counts.",{"segments":43,"ref":46},[44],{"type":18,"html":45},"Energy reused within the data center lowers the PUE and must not also be counted in the ERF, otherwise it is counted twice. Heated battery rooms or preheated generators result in an ERF of 0.","Clause 4, Annex A.3.",{"title":48,"text":49},"The boundary is the same as for the PUE.",{"segments":50,"ref":58},[51,53,56],{"type":18,"html":52},"It lies at the energy supplier’s ",{"type":21,"text":54,"anchor":55},"point of connection","boundary",{"type":18,"html":57}," and includes all energy carriers, including natural gas, diesel, or chilled water. Total consumption also includes the infrastructure that brings the heat flow to the point of connection.","Clauses 4 and 5.",{"title":60,"text":61},"Measured at the point of connection.",{"segments":62,"ref":65},[63],{"type":18,"html":64},"Total consumption is measured at the supplier’s meter, the energy supplied where it passes to another party, usually as heat via temperature and flow rate, converted into kilowatt-hours.","Clause 6, Annex B.",{"title":67,"text":68},"What counts is the waste heat at the input of the external system, not what that system delivers.",{"segments":69,"ref":72},[70],{"type":18,"html":71},"If a heat pump raises the temperature level, its drive energy is not part of the ERF; if waste heat drives a chiller, the heat counts, not the cooling produced.","Annex A.2 and A.5.",{"title":74,"text":75},"A report states boundary, value, type of energy, and end date.",{"segments":76,"ref":79},[77],{"type":18,"html":78},"Because of seasonal fluctuations, the value is to be calculated over the year; shorter periods carry the prefix “i” for interim.","Clauses 8.1 and 8.3.",[81,88],{"statement":82,"text":83},"“We heat offices and the battery room with the waste heat, so we have an ERF.”",{"segments":84,"ref":87},[85],{"type":18,"html":86},"As long as the heat stays within the boundary, this is an efficiency measure that shows up in the PUE, but it is not an ERF. From seminar practice: operators who supply ancillary spaces in this way act sensibly, but they do not meet any requirement under this standard","(Annex A.3.2).",{"statement":89,"text":90},"“The district heating output behind the heat pump is our reused energy.”",{"segments":91,"ref":94},[92],{"type":18,"html":93},"The standard only counts the waste heat that the data center supplies at the point of connection; the heat pump is a separate system with its own electricity demand. In projects, we often see that raising the heat to district heating level costs more electricity than expected and that the heat customer only needs heat in winter","(Annex A.5).",{"heading":96,"items":97,"closing":117},"Where Part 4-6 applies in a project",[98,104,110],{"label":99,"text":100},"Site and planning",{"segments":101,"ref":26},[102],{"type":18,"html":103},"The ERF depends on a heat customer outside the boundary who can use the heat continuously and at the temperature level supplied; the discussion with the heating network operator belongs in the strategy phase.",{"label":105,"text":106},"Law",{"segments":107,"ref":26},[108],{"type":18,"html":109},"The EnEfG requires data centers that start operation from 1 July 2026 to reach a share of reused energy according to DIN EN 50600-4-6, staggered by year of commissioning; exemptions apply, among other cases, if a heating network operator does not accept an offer (Section 11(2) and (3)).",{"label":111,"text":112},"Reporting",{"segments":113,"ref":116},[114],{"type":18,"html":115},"Commission Delegated Regulation (EU) 2024\u002F1364 requires the waste heat reused according to EN 50600-4-6 for the European database on data centers; shares used internally must be deducted","(Annex II).",[118],{"segments":119,"ref":122},[120],{"type":18,"html":121},"This protects you from a planned share that fails at the system boundary in the German energy efficiency register for data centers (Energieeffizienzregister)","(Clause 4).",[124,130,136],{"label":125,"text":126,"draft":26,"draftDate":26},"Current edition",{"segments":127,"ref":26},[128],{"type":18,"html":129},"DIN EN 50600-4-6:2020-07, German edition of EN 50600-4-6:2020, approved by CENELEC on 13 January 2020.",{"label":131,"text":132,"draft":26,"draftDate":26},"International",{"segments":133,"ref":26},[134],{"type":18,"html":135},"ISO\u002FIEC 30134-6; Commission Delegated Regulation (EU) 2024\u002F1364 refers to EN 50600-4-6 as the European implementation.",{"label":137,"text":138,"draft":26,"draftDate":26},"Revision",{"segments":139,"ref":26},[140],{"type":18,"html":141},"No ongoing revision known. Committee CLC\u002FTC 215, nationally DKE\u002FGK 719.",[143,150,156,162,168],{"question":144,"answer":145},"What is the ERF according to EN 50600-4-6?",{"segments":146,"ref":149},[147],{"type":18,"html":148},"The ratio of the energy reused outside the data center to the total energy consumption, both as annual values. The value is between 0 and 1","(Clause 5).",{"question":151,"answer":152},"Does waste heat used in our own building count?",{"segments":153,"ref":122},[154],{"type":18,"html":155},"No. Reuse within the boundary lowers the PUE and is not credited to the ERF",{"question":157,"answer":158},"What ERF does the EnEfG require?",{"segments":159,"ref":26},[160],{"type":18,"html":161},"For data centers starting operation from 1 July 2026, at least 10%; from 1 July 2027, 15%; from 1 July 2028, 20%; in each case no later than two years after commissioning, as an annual average (Section 11(2) EnEfG, as of 13 November 2023).",{"question":163,"answer":164},"How are ERF and PUE related?",{"segments":165,"ref":26},[166],{"type":18,"html":167},"Both use the same boundary. Internal reuse improves the PUE, external reuse the ERF; for the PUE, the EnEfG disregards the electricity for systems that serve only to upgrade the waste heat (Annex A; Section 11(2) EnEfG).",{"question":169,"answer":170},"Do I have to report the ERF?",{"segments":171,"ref":174},[172],{"type":18,"html":173},"Operators with an IT power demand of 500 kW or more report the reused energy annually to the European database; the EnEfG requires the share according to DIN EN 50600-4-6 as well as the quantity and temperature of the waste heat for the energy efficiency register","(Annex 3).",[176,179],{"seminarId":177,"benefit":178},"DC-21008","Waste heat use with temperature levels, heat pumps, and project examples, as well as a comparison of the indicators with the EnEfG; this saves you a waste heat strategy without a heat customer.",{"seminarId":180,"benefit":181},"DC-21010","Legally sound implementation of the EnEfG, including the question of where the waste heat 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ISO\u002FIEC 22237.",5,[233,234],{"id":231,"status":225,"seminar_id":247,"image_main":248,"title":249,"subtitle":26,"slug":250,"short_description":251,"durationDays":244,"formats":252,"formatsOnRequest":14},"DC-21003","b94540de-de24-4383-9c44-0c4207e91a14","Data Center Operations – Professional","data-center-operations-professional","Best practices and case studies provide a deep understanding of the necessary processes and systems to operate a data center efficiently and effectively.",[233,234],{"id":254,"status":225,"seminar_id":255,"image_main":256,"title":257,"subtitle":258,"slug":259,"short_description":260,"durationDays":244,"formats":261,"formatsOnRequest":14},4,"DC-21004","19eb687a-6272-4ff9-b872-2dbcaceb54fd","Deep Dive – Power Supply & Cooling","according to EN 50600","deep-dive-energy-supply-air-conditioning-en-50600","Best practices and case studies provide a deep understanding of the two major trades in the data center.",[233,234],{"id":244,"status":225,"seminar_id":263,"image_main":264,"title":265,"subtitle":266,"slug":267,"short_description":268,"durationDays":244,"formats":269,"formatsOnRequest":14},"DC-21006","5ce01d58-7ac1-494b-a8e1-3cc752d338b7","Data Center Migration","moving IT from an existing facility to a new build","data-center-migration","Navigate safely through the complex journey of data center migration.",[233],{"id":271,"status":225,"seminar_id":177,"image_main":272,"title":273,"subtitle":26,"slug":274,"short_description":275,"durationDays":244,"formats":276,"formatsOnRequest":14},6,"22658b8c-b308-4ce5-a485-be638aa25ebe","Data Center Sustainability & Efficiency","data-center-sustainability-efficiency","Legal foundations, criteria catalogs, developments, and technical solutions",[233],{"id":278,"status":225,"seminar_id":279,"image_main":280,"title":281,"subtitle":26,"slug":282,"short_description":283,"durationDays":224,"formats":284,"formatsOnRequest":285},7,"DC-21009","4c7858fc-30cf-4d07-8e96-cd2c03057f76","Update – EN 50600 and ISO\u002FIEC 22237‑x","update-en-50600-iso-iec-22237-x","The most important changes and differences from the previous standards of the EN 50600 series as well as the major differences between the European and international versions.",[233,234],true,{"id":287,"status":225,"seminar_id":180,"image_main":288,"title":289,"subtitle":290,"slug":291,"short_description":292,"durationDays":231,"formats":293,"formatsOnRequest":14},9,"d87cc210-19f8-4fc2-8ba3-3bfceb69817c","Energy Management According to ISO 50001","for data centers under Section 12 EnEfG","energy-management-din-en-50001","Legally compliant implementation of the Energy Efficiency Act for data centers",[233],{"id":295,"status":225,"seminar_id":296,"image_main":297,"title":298,"subtitle":26,"slug":299,"short_description":26,"durationDays":231,"formats":300,"formatsOnRequest":14},10,"DC-21011","814710db-8b32-40f8-8137-b0fea109c79b","Liquid Cooling, DC Power and High-Bandwidth Cabling","liquid-cooling-dc-power-high-bandwidth-cabling",[233],{"id":302,"status":225,"seminar_id":303,"image_main":304,"title":305,"subtitle":26,"slug":306,"short_description":307,"durationDays":224,"formats":308,"formatsOnRequest":14},8,"DCS-23001","83d21d07-5ee9-4726-a8a0-a32cec614e66","Data Center Passport","data-center-passport","Basic understanding of data centers, structure, components, and trades. Orientation and behavioral guidelines for working in data centers.",[234],{"data":310},[311,324,336,347,357],{"id":312,"status":225,"sort":224,"slug":313,"position":314,"cv":315,"linkedin":316,"phone":317,"signature_email":318,"first_name":319,"last_name":320,"avatar":321,"profile":322},"9eff7954-eeab-4a8f-96d7-fd578be1b1b1","thomas-wawra","CEO","\u003Cp>Dipl. Ing. Thomas Wawra gründete 2007 die DCE academy und entwickelte Sie zum führenden Anbieter von herstellerneutralen Schulungen im Bereich Rechenzentrum basierend auf der Norm EN 50600. Als Sponsor unterstützt er aktiv die Internationalisierung der Norm zur ISO 22237 und referiert weltweit auf Kongressen zu Normierungsfragen.\u003C\u002Fp>\n\u003Cp>In den Jahren 2002 bis 2006 war Thomas Wawra Gesamtverantwortlicher für das Auslandsgeschäft der Venali Inc., Miami, USA. In dieser Zeit leitete er den gesamten Bereich Vertrieb und baute strategische Partnerschaften mit Unternehmen wie, Microsoft und SAP erfolgreich auf. Davor bekleidete er die Position des Geschäftsführers der Venali Europe GmbH, einem Start Up Unternehmen im Bereich Secure Messaging. In dieser Rolle trug er ebenfalls maßgeblich zum Erfolg des Unternehmens bei und eröffnete im Zeitraum von 1996 bis 2007 die Niederlassungen in London, Singapur und Deutschland. Zudem zeichnete er für die Konzipierung und Umsetzung des gesamten Vertriebskonzeptes verantwortlich und war an der Sicherung der Finanzierung durch die Gewinnung von Venture Capital-Gebern sowie Business Angels wesentlich beteiligt.\u003C\u002Fp>\n\u003Cp>Thomas Wawra ist diplomierter Maschinenbauingenieur der Technischen Universität München.\u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fthomas-wawra-a780425\u002F","+49 163 6010442","thomas.wawra@dce-academy.com","Thomas","Wawra","0afd33cf-4d17-49f6-9dfa-f71b65dc15db",{"kind":323,"slug":313},"team",{"id":325,"status":225,"sort":237,"slug":326,"position":327,"cv":328,"linkedin":329,"phone":330,"signature_email":331,"first_name":332,"last_name":333,"avatar":334,"profile":335},"adc4834c-325d-45ca-bb3e-d3eeb380b962","sebastian-galleitner","CMO & CTO","\u003Cp>Sebastian Galleitner verfügt über mehr als 25 Jahre Expertise im strategischen Marketing und in der Entwicklung digitaler Lösungen. Als Chief Marketing Officer der DCE academy verantwortet er die gesamte Kommunikationsstrategie und Markenführung der Academy.\u003C\u002Fp>\u003Cp>Sein fachlicher Hintergrund umfasst umfangreiche Erfahrung in der Konzeption und Umsetzung komplexer Marketingstrategien für technologieorientierte Unternehmen. Diese Fachkompetenz ergänzt ideal die herstellerunabhängige, technische Expertise der DCE academy im Rechenzentrumsbereich.\u003C\u002Fp>\u003Cp>In seiner Funktion sorgt er dafür, dass die präzisen Schulungsangebote ihre Zielgruppen erreichen und die DCE academy als führende Autorität für Rechenzentrumsexpertise wahrgenommen wird. Dabei setzt er auf eine systematische, faktenbasierte Kommunikation, die den hohen Qualitätsanspruch der Ausbildungen widerspiegelt.\u003C\u002Fp>\u003Cp>Vor seiner Tätigkeit für die DCE academy hat Sebastian Galleitner erfolgreich Marketingstrategien für namhafte Unternehmen in der Finanz- und Automobilbranche entwickelt und ist mit den besonderen Anforderungen technisch anspruchsvoller B2B-Kommunikation bestens vertraut.\u003C\u002Fp>\u003Cp>Die Verbindung aus methodischem Marketing-Know-how und Verständnis für technische Zusammenhänge ermöglicht es ihm, die komplexen Inhalte der Schulungen zielgruppengerecht aufzubereiten und den besonderen Wert der praxisorientierten Wissensvermittlung zu kommunizieren.\u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fsebastian-galleitner\u002F","+491749793327","sebastian.galleitner@dce-academy.com","Sebastian","Galleitner","d168850c-990d-467a-8150-97954ef803ef",{"kind":323,"slug":326},{"id":337,"status":225,"sort":231,"slug":338,"position":339,"cv":340,"linkedin":341,"phone":26,"signature_email":342,"first_name":343,"last_name":344,"avatar":345,"profile":346},"dd1bebf0-6d1f-4262-9ec4-524ed59d3901","juergen-strate","Chief Education & Alliance Officer","\u003Cp>Jürgen Strate, Dipl.-Ing. der Versorgungstechnik, war als Direktor für Sales & Strategic Business Development für den Geschäftsbereich Site and Facilities Services D\u002FA\u002FCH der IBM Deutschland GmbH verantwortlich. \u003C\u002Fp>\n\u003Cp>Er war seit 1990 Mitarbeiter der IBM Deutschland.  Herr Strate begann seine Karriere bei IBM als Spezialist für Anlagentechnik im Bereich Chemische Verfahrenstechnik im IBM Halbleiterwerk Böblingen\u002FSindelfingen. Anschließend wechselte er in den IBM Bereich Industry Solution verbunden mit der Qualifizierung zum IT-Systemingenieur.\u003C\u002Fp>\n\u003Cp>Seit 1998 gehörte er dem Geschäftsbereich Site and Facilities Services der IBM an.  In verschiedenen Rollen verfügt er seit mehr als 25 Jahren über umfangreiche Erfahrung in der Beratung, Planung und Realisierung von Rechenzentren unter Sicherheits- und Verfügbarkeitsaspekten. Hierzu gehörte auch eine umfassende und professionelle Begleitung von der Rechenzentrumsstrategie über Planung und Realisierung bis zur Indienstsetzung von Rechenzentren. Er hat den Geschäftsbereich Site and Facilities Services für IBM mitgestaltet und aufgebaut sowie die Entwicklung standardisierter Rechenzentrumslösungen für den Mittelstand sowie von Enterprise Datacentern vorangetrieben. Ein besonderer Fokus lag in der Ausgestaltung von energieeffizienten Lösungen sowie der Einhaltung von aktuellen Standards, insbesondere der DIN EN 50600.\u003C\u002Fp>\n\u003Cp>Herr Strate war als Keynote-Speaker und Referent auf Fachveranstaltungen präsent. Er übte in enger Zusammenarbeit mit der DCE academy die Referententätigkeit zu verschiedenen fachlichen Themen im Rechenzentrumsbereich aus.\u003C\u002Fp>\n\u003Cp>IBM Site and Facilities Services plante und realisierte als Generalübernehmer schlüsselfertig sichere, hochverfügbare, modulare, skalierbare, innovative und energieeffiziente Rechenzentren.\u003C\u002Fp>\n\u003Cp>Seit 2021 ist Herr Strate freiberuflich als Referent \u002F Dozent für die DCE academy tätig. \u003C\u002Fp>","https:\u002F\u002Fwww.linkedin.com\u002Fin\u002Fjuergen-strate\u002F","juergen.strate@dce-academy.com","Jürgen","Strate","48a241a8-9ea1-44ff-94dc-ea0fc76ab74b",{"kind":323,"slug":338},{"id":348,"status":225,"sort":254,"slug":349,"position":350,"cv":351,"linkedin":26,"phone":26,"signature_email":352,"first_name":353,"last_name":354,"avatar":355,"profile":356},"e3ce035f-250a-427e-9219-ed262d272263","victor-dadson","Business Development 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