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Market Data

This page contains links to Market information. To navigate this page, either select a category below or scroll down the page:

Settlement Calendars
Residual Cashflow Reallocation Cashflow (RCRC)
GSP Group Correction Factors (GGCFs)
Transmission Loss Multipliers (TLMs)
Unmetered Supplies (UMS)
Codes of Practice (CoP) Compliance and Protocol Approvals
Weather Stations


Settlement Calendars

The Settlement Calendar Search tool gives you immediate access to information contained in the Settlement Calendars. It allows you to search for Agent run dates or Settlement Dates without having to download individual Settlement Calendars.

Fields marked with * are mandatory.

Settlement Calendar Search
Select the Settlement System you are interested in
Select input date type
 *

Download a Settlements Administration Agent (SAA) or Supplier Volume Allocation Agent (SVAA) Calendar in XLS format from the table below.

Please note that from 6 November 2008, your actual Payment Date may not always equal the Payment Date set out in the SAA Calendar below. Please refer to the PDF Delivery of Advice Notes, Backing Sheets and Confirmation Notices Information Sheet (105Kb) for further guidance.

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Title Documents to add to basket Notifying of updated documents
2010/2011 Credit Cover Volume Allocation Run Calendar (87Kb)
2009/2010 Credit Cover Volume Allocation Run Calendar (27Kb)
2010/2011 Settlements Administration Agent (SAA) Calendar (2.4Mb)
2009/2010 Settlements Administration Agent (SAA) Calendar (626Kb)
2008/2009 Settlements Administration Agent (SAA) Calendar (318Kb)
2010/2011 Supplier Volume Allocation Agent (SVAA) Calendar (182Kb)
2009/2010 Supplier Volume Allocation Agent (SVAA) Calendar (180Kb)
2008/2009 Supplier Volume Allocation Agent (SVAA) Calendar (179Kb)
Post-Final Settlement Run Calendar for Settlement Days from 27 March 2001- 9 December 2008 (655Kb)
Key to Post-Final Settlement Run Calendar (51Kb)
2010/2011 D0095 Reporting Calendar (25Kb)
2009/2010 D0095 Reporting Calendar (23Kb)

Residual Cashflow Reallocation Cashflow (RCRC)

Any money that you pay in Imbalance Charges is redistributed amongst all BSC Parties, on a scale proportional to your volume of credited energy. This redistribution is paid as Residual Cashflow Reallocation Cashflow (RCRC). RCRC data is presented on a £/MWh basis.

You can download RCRC data (in XLS format) and an explanation of how to use this data to calculate how much you will receive in RCRC payments (in PDF format) from the table below.

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Title Documents to add to basket Notifying of updated documents
RCRC Data (2Mb)
Calculation of Residual Cashflow Reallocation Cashflow (18Kb)

GSP Group Correction Factors (GGCFs)

GSP Group Correction Factors (GGCFs) are used to ensure that the total energy allocated to Suppliers in each Settlement Period in each GSP Group matches the energy entering the GSP Groups from the transmission system and through embedded generation. To achieve this, GGCFs are applied to the energy allocated to Suppliers from non-half-hourly metering systems.

You can use the files in the table below to get a detailed explanation of this calculation and to see a set of GSP Group Correction Factors for every Settlement Day in the year. There is one sheet per GSP Group.

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Title Documents to add to basket Notifying of updated documents
Calculation of GSP Group Correction Factor (17Kb)
GSP Group Correction Factor - 2010 (495Kb)
GSP Group Correction Factor - 2009 (4.9Mb)
GSP Group Correction Factor - 2008 (4.9Mb)
GSP Group Correction Factor - 2007 (4.9Mb)
GSP Group Correction Factor - 2006 (4.9Mb)

Transmission Loss Multipliers (TLMs)

The Transmission Loss Multiplier (TLM) is applied to a BM Unit’s Metered Volume to adjust for Transmission Losses. Although TLMij is defined as a BM Unit-Settlement Period level variable, there are only two values for TLM per Settlement Period: one for BM Units belonging to Trading Units that are off-taking Trading Units in the Settlement Period, and one for BM Units belonging to Trading Units that are delivering Trading Units in the Settlement Period. This is because the Transmission Loss Factor (TLFij), used in the calculation of TLM, is zero for all BM Units. If you're interested in Transmission Loss Multipliers, you can download historic TLM data from the table below.

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Title Documents to add to basket Notifying of updated documents
Transmission Loss Multipliers (2.3Mb)

Unmetered Supplies (UMS)

To download the Terms of Reference, Minutes of meetings associated with the Unmetered Supplies User Group (UMSG), reports and provisional charging codes, please select the Unmetered Supplies link from the related links menu to the right.

Codes of Practice (CoP) Compliance and Protocol Approvals

You can download the CoP Compliance and Protocol Approvals from the table below. This document is updated when new meter types are introduced. We've also published a document with a timeline of each CoP and it shows the previous versions of each.

TitleVersion No Documents to add to basket Notifying of updated documents
CoP Compliance and Protocol Approval List (139Kb)24.0
Code of Practice Timeline (21Kb)2.0

Weather Stations

In order for the SVA Agent to calculate Daily Profile Coefficients, temperature variables are required for input into the regression equations. The temperature data is provided to the SVA Agent on a daily basis by the Meteorological Office and is collected for each GSP Group from weather stations that are approved for use by the SVG. You can download a list of the approved weather stations below.

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Title Documents to add to basket Notifying of updated documents
SVG Approved Weather Stations (31Kb)
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