{"id":103073,"date":"2018-08-24T12:26:03","date_gmt":"2018-08-24T11:26:03","guid":{"rendered":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/?page_id=103073"},"modified":"2023-12-18T13:26:17","modified_gmt":"2023-12-18T13:26:17","slug":"tlf-data","status":"publish","type":"page","link":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/settlement\/transmission-losses\/tlf-data\/","title":{"rendered":"Transmission Loss Factors Determination Data"},"content":{"rendered":"<p>The information is in response to Modification P350 &#x2018;Introduction of a seasonal Zonal Transmission Losses scheme&#x2019; which introduces a Transmission Loss Factor (TLF) for each TLF Zone and BSC Season.<\/p>\n<h2 id=\"tlfs-and-associated-data\">TLFs and Associated Data<\/h2>\n<ul>\n<li><a href=\"http:\/\/www.elexonportal.co.uk\/tlfdetermination\">BSC Portal<\/a> &gt; Operational Data &gt; TLF Determination information<\/li>\n<\/ul>\n<p><strong>Please note<\/strong> that the above data is uploaded to the BSC Portal which will require you to log in to access the information.<\/p>\n<h2 id=\"etlmo-values\">ETLMO Values<\/h2>\n<p>The Approved Estimated Transmission Losses Adjustment (ETLMO) values are used by the Balancing Mechanism Reporting Agent (BMRA) to calculate indicative charges and payments for Balancing Mechanism (BM) actions, and the Energy Imbalance Price, in near to real-time.<\/p>\n<p>These are updated on an annual basis and are approved by the Imbalance Settlement Group (ISG).<\/p>\n<h2 id=\"register-for-the-elexon-portal\">Register for the Elexon Portal<\/h2>\n<p>Get access to Transmission Loss Factors Determination Data on the Portal.<\/p>\n<ul>\n<li><a href=\"https:\/\/www.elexonportal.co.uk\/registration\/newuser\"> Elexon Portal registration<\/a><\/li>\n<\/ul>\n\n","protected":false},"excerpt":{"rendered":"<p>The information is in response to Modification P350 &#x2018;Introduction of a seasonal Zonal Transmission Losses scheme&#x2019; which introduces a Transmission Loss Factor (TLF) for each TLF Zone and BSC Season. [&hellip;]<\/p>\n","protected":false},"author":351,"featured_media":0,"parent":103056,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","inline_featured_image":false,"footnotes":""},"tags":[],"class_list":["post-103073","page","type-page","status-publish","hentry"],"acf":[],"semantic_search":{"post_id":103073,"title":"Transmission Loss Factors Determination Data","link":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/settlement\/transmission-losses\/tlf-data\/","categories":[],"tags":[],"content":"    <div class=\"panel-content\">\n        <p>This page details all the relevant data that is available to the industry for the determination of Transmission Loss Factors (TLFs).<\/p>\n\n    <\/div>\n\n    <div class=\"panel-content\">\n        <p>The information is in response to Modification P350 &#x2018;Introduction of a seasonal Zonal Transmission Losses scheme&#x2019; which introduces a Transmission Loss Factor (TLF) for each TLF Zone and BSC Season.<\/p>\n<h2 id=\"tlfs-and-associated-data\">TLFs and Associated Data<\/h2>\n<ul>\n<li><a href=\"http:\/\/www.elexonportal.co.uk\/tlfdetermination\">BSC Portal<\/a> &gt; Operational Data &gt; TLF Determination information<\/li>\n<\/ul>\n<p><strong>Please note<\/strong> that the above data is uploaded to the BSC Portal which will require you to log in to access the information.<\/p>\n<h2 id=\"etlmo-values\">ETLMO Values<\/h2>\n<p>The Approved Estimated Transmission Losses Adjustment (ETLMO) values are used by the Balancing Mechanism Reporting Agent (BMRA) to calculate indicative charges and payments for Balancing Mechanism (BM) actions, and the Energy Imbalance Price, in near to real-time.<\/p>\n<p>These are updated on an annual basis and are approved by the Imbalance Settlement Group (ISG).<\/p>\n<h2 id=\"register-for-the-elexon-portal\">Register for the Elexon Portal<\/h2>\n<p>Get access to Transmission Loss Factors Determination Data on the Portal.<\/p>\n<ul>\n<li><a href=\"https:\/\/www.elexonportal.co.uk\/registration\/newuser\"> Elexon Portal registration<\/a><\/li>\n<\/ul>\n\n    <\/div>\n\n<div class=\"pagebuilder-blocks\"><div class=\"panel-content\">\n    <div class=\"accordion\">\n        <div class=\"accordion-group\">\n            <h2 class=\"accordion-title h2\" tabindex=\"0\" id=\"data-files-included-in-tlf\" aria-expanded=\"false\">Data files included in TLF<\/h2>            <div class=\"accordion-panel\" aria-hidden=\"true\">\n                <div class=\"panel-inner\">\n                    <ul>\n<li>Reference Network Mapping Statement (NMS)<\/li>\n<li>Load Periods (LPs) and Sample Settlement Periods (SSPs)<\/li>\n<li>Metered Volumes for Sample Settlement Periods<\/li>\n<li>Transmission Network Data<\/li>\n<li>HVDC Metered Volume Data for Sample Settlement Periods<\/li>\n<li>Distribution Network Data<\/li>\n<li>Total Delivering and Offtaking Metered Volume Data<\/li>\n<li>Nodal TLFs<\/li>\n<li>Adjusted Seasonal Zonal TLF (ATLFZs)<\/li>\n<li>BM Unit Specific TLFs<\/li>\n<li>Seasonal Zonal TLF (TLFZs)<\/li>\n<li>Transmission Loss Factor Adjustment (TLFAs)<\/li>\n<li>Indicative values of TLMij, for every Settlement Period in the Reference Year with TLFij=0<\/li>\n<li>Indicative values of TLMij, for every Settlement Period in the Reference Year with TLFij&#x2260;0<\/li>\n<li>Adjusted Nodal Power Flows<\/li>\n<li>Branch Power Flows<\/li>\n<li>Absolute Nodal Power Flows<\/li>\n<\/ul>\n\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div><\/div>","s3_url":""},"_links":{"self":[{"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/pages\/103073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/users\/351"}],"replies":[{"embeddable":true,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/comments?post=103073"}],"version-history":[{"count":5,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/pages\/103073\/revisions"}],"predecessor-version":[{"id":203968,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/pages\/103073\/revisions\/203968"}],"up":[{"embeddable":true,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/pages\/103056"}],"wp:attachment":[{"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/media?parent=103073"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elexon-beta.elexonhostings.co.uk\/bsc\/wp-json\/wp\/v2\/tags?post=103073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}