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Covers operational security limits, contingencies, allocation constraints, flow reliability margin, Generation Shift Key, remedial actions, and adjustments such as minimum RAM and CNEC selection. Details the flow-based capacity calculation process, common grid model creation, regional cross-zonal calculation, precoupling backups and fallback processes, validation, publication, and regulatory monitoring, followed by implementation timescales and glossary terms.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/explanatory-note-on-the-day-ahead-and-intraday-common-capacity-calculation-methodologies-for-the-core-ccr-4-june-2018/203309/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/explanatory-note-on-the-day-ahead-and-intraday-common-capacity-calculation-methodologies-for-the-core-ccr-4-june-2018/203309.png","ImageObject",300,407,{"name":92,"@type":93},"วิน","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-06","2026-09-04",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the document cover regarding Core CCR capacity calculation?","Question",{"text":112,"@type":113},"It explains the day-ahead and intraday common capacity calculation methodologies for the Core CCR, including the flow-based methodology, capacity approach, and the overall calculation process.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which key inputs and components are used in the flow-based capacity calculation methodology?",{"text":117,"@type":113},"The note lists inputs such as operational security limits, contingencies, allocation constraints, flow reliability margin (FRM), Generation Shift Key (GSK), and Remedial Action (RA), along with related adjustments.",{"name":119,"@type":110,"acceptedAnswer":120},"How is cross-zonal capacity calculated and validated, and what is included after calculation?",{"text":121,"@type":113},"It describes creation of common grid models and regional cross-zonal capacity calculation, then covers validation of cross-zonal capacity, publication of data, and monitoring/information to regulatory authorities.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},203309,1790606938,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":39,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},2336475104736,"https://ap-avatar.wpscdn.com/avatar/22000c4c5e0e5b17e70?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786591360781797222","Explanatory note on the day-ahead and intraday common capacity calculation methodologies for the Core CCR  \n4th of June 2018  \n\n| Version | DA & ID CCM Explanatory Document – Submitted to Core NRAs after RfA |  |  |\n| --- | --- | --- | --- |\n| Date | 04/06/2018 |  |  |\n| Status |  | Draft |  Final |\n|  |  |  |  |\n|  |  |  |  |\n\nCONTENT  \n1. Introduction ...............................................................................................................................5  \n2. Flow-based capacity calculation methodology .........................................................................6  \n2.1. Inputs – see Article 21(1)(a) of the CACM Regulation .................................................................... 6  \n2.1.1. Methodologies for operational security limits, contingencies and allocation constraints – see Article 23 of the CACM Regulation ............................................................................. 6  \n2.1.2. Flow reliability margin (FRM) .............................................................................................. 9  \n2.1.3. Generation Shift Key (GSK) .............................................................................................. 13  \n2.1.4. Remedial Action (RA) ...................................................................................................... 13  \n2.2. Capacity calculation approach....................................................................................................... 14  \n2.2.1. Mathematical description of the capacity calculation approach ....................................... 14  \n2.2.2. Adjustment for minimum RAM (AMR) .............................................................................. 16  \n2.2.3. CNEC selection ............................................................................................................... 16  \n2.2.4. Long term allocated capacities (LTA) inclusion ............................................................... 18  \n2.2.5. Rules on the adjustment of power flows on critical network elements due to remedial actions ............................................................................................................................. 19  \n2.2.6. Integration of HVDC interconnectors located within the Core CCR in the Core capacity calculation (evolved flow-based) ..................................................................................... 20  \n2.2.7. Capacity calculation on non-Core borders (hybrid coupling)– see Article 21(1)(b)(vii) of the CACM Regulation ...................................................................................................... 21  \n3. Flow-based capacity calculation process ...............................................................................23  \n3.1. High Level Process flow ................................................................................................................ 23  \n3.2. Creation of a common grid model (CGM)– see Article 28 of the CACM Regulation .................... 24  \n3.2.1. Forecast of net positions .................................................................................................. 24  \n3.2.2. Individual Grid Model (IGM) ............................................................................................. 25  \n3.2.3. IGM replacement for CGM creation ................................................................................. 25  \n3.2.4. Common Grid models ...................................................................................................... 26  \n3.3. Regional calculation of cross-zonal capacity – see Article 29 of the CACM Regulation ............... 26  \n3.3.1. Calculation of the final flow-based domain ...................................................................... 26  \n3.4. Precoupling backup & default processes – see Article 21(3) of the CACM Regulation ................ 28  \n3.4.1. Precoupling backups and replacement process ...........","cbCaioxBmuZEVSpk","https://ap.wps.com/l/cbCaioxBmuZEVSpk","pdf",1231951,37,"English","# Introduction\n# Flow-based capacity calculation methodology\n## Inputs and capacity calculation approach\n# Flow-based capacity calculation process\n## Common grid model and cross-zonal capacity\n# Implementation\n# Glossary","[{\"question\":\"What does the document cover regarding Core CCR capacity calculation?\",\"answer\":\"It explains the day-ahead and intraday common capacity calculation methodologies for the Core CCR, including the flow-based methodology, capacity approach, and the overall calculation process.\"},{\"question\":\"Which key inputs and components are used in the flow-based capacity calculation methodology?\",\"answer\":\"The note lists inputs such as operational security limits, contingencies, allocation constraints, flow reliability margin (FRM), Generation Shift Key (GSK), and Remedial Action (RA), along with related adjustments.\"},{\"question\":\"How is cross-zonal capacity calculated and validated, and what is included after calculation?\",\"answer\":\"It describes creation of common grid models and regional cross-zonal capacity calculation, then covers validation of cross-zonal capacity, publication of data, and monitoring/information to regulatory authorities.\"}]","Explanatory Note on the Day-ahead and Intraday Common Capacity Calculation Methodologies for the Core CCR - 4 June 2018 | PDF",1788559583,93]