ENIEC 61400-12-5 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM October2022 ICS 27.180 English Version Wind energy generation systems - Part 12-5: Power performance - Assessment of obstacles and terrain (IEC 61400-12-5:2022) Systemes de generation d'énergie eolienne - Partie 12-5: Windenergieanlagen - Teil 12-5: Leistungsverhalten - Performance de puissance - Evaluation des obstacles et du Bewertungvon Hindernissen und Gelande terrain (IEC 61400-12-5:2022) (IEC 61400-12-5:2022) This European Standard was approved by CENELEC on 2022-10-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the CEN-CENELEC Management Centrehas the same status as the official versions. CENELEC membersare thenationalelectrotechnical committees of Austria,Belgium,Bulgaria, Croatia,Cyprus,the CzechRepublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,Malta, the Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels Ref.No.EN IEC61400-12-5:2022E EN IEC 61400-12-5:2022 (E) European foreword The text of document 88/825/CDV, future edition 1 of IEC 61400-12-5, prepared by IEC/TC 88 "Wind energy generation systems" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61400-12-5:2022. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2023-07-04 level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with (dow) 2025-10-04 document have to be withdrawn patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. complete listing of these bodies can be found on the CENELEC website. Endorsement notice The text of the International Standard IEC 61400-12-5:2022 was approved by CENELEC as a European Standard without any modification. 2 EN IEC 61400-12-5:2022 (E) Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Publication Year Title EN/HD Year IEC 61400-12-1 Wind energy generation systems - Part 12-EN IEC 61400-12-1 - 1: Power performance measurement of electricity producing wind turbines IEC 61400-12-2 Wind energy generation systems - Part 12- EN IEC 61400-12-2 - 2: Power performance of electricity producing wind turbines based on nacelle anemometry Wind energy generation systems - Part 12- EN IEC 61400-12-3 - IEC 61400-12-3 3: Power performance - Measurement based site calibration IEC 61400-12-6 Wind energ