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Gemini Release 4 UKLC Update

This update includes the approval of an implementation date, reduced notification period, and changes to the file format for specific invoices. Certain file format changes have been removed. User change impacts are outlined, including amendments to interface files and new price types for NTS Entry Capacity Overrun Calculation. The update also introduces a new method of sale and functionality for NTS Entry Capacity Transfers.

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Gemini Release 4 UKLC Update

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  1. Gemini Release 4UKLC Update 8th February 2007

  2. Gemini Release 4 – UKL13820 • UK Link Committee is requested to approve the following: • Implementation Date of 29th April 2007 • Reduced notification period • Approval of updated file format for the following: • NTE – NTS Entry Capacity Invoice • The following file format changes have been removed due to the non-implementation of the relevant UNC modifications: • ECO – Entry Commodity Invoice (Mod 120v) • MEI – Meter Energy List Input file (Mod 97) • MEO – Meter Energy List Output file (Mod 97) • The Outage window will be 4am to 9am (with a contingency of 11am)

  3. User Change Impacts in Summary • SO Commodity (Mod 120v – Non-Implementation) • New NCE charge rows on Entry Commodity Invoice • Publish Interconnector Offtake (Mod 97 – Non Implementation) • Amendment to MEI (Meter Energy Input) interface file • Amendment to MEO (Meter Energy Output) interface file • NTS Entry Capacity Overrun Price Calculation (Mod 119 – Mod Panel Recommended for Implementation, awaiting Ofgem decision) • New allowable values within the Price Methodology field. • NTS Entry Capacity Transfers (Impending mod following 118 withdrawal) • No User amendments required

  4. NTS Entry Capacity Overrun Price CalculationModification 0119 • Introduction of 1 new price type • ECRP (Entry Capacity Reserve Price) = A multiplier * Highest Reserve Price of any firm Method of Sale • Modification to the existing price types to change from top 25% Weighted Average Price to Highest acceptable price • EBBH = A multiplier * Highest Accepted Entry Capacity Buy Back Price • EBFH = A multiplier * Highest Accepted Entry Capacity Forwards Price • EBOH = A multiplier * Highest Accepted Entry Capacity Options Price • This will result in three new Price Type codes for the above. • HFCP (Highest Firm Capacity Price) remains the same. • Overrun Quantity will be multiplied by the highest price of HFCP, ECRP, EBBH, EBFH or EBOH. The new Price Types will be included on the Invoice file format in Overrun charge records.

  5. NTS Entry Capacity Transfers • New Method of Sale will be created to identify the Transfer Auction • Publish of Invitation to Bid for Capacity will utilise the same functionality • Bid Capture will utilise the same functionality. New screen rejection message introduced when capacity is not available for a sub-transaction period at an Entry Point. • Publish Results will be done using the existing functionality.

  6. Gemini Release 4 – UKL13830 • UK Link Committee is requested to approve the following: • Class 1 change to make an amendment to the description of the G09 record (NTS_ENTRY_COMMODITY_ADJUSTMENT_RECORD) on the ECO – Entry Commodity Invoice file. • Addition of “The first character is signed – if it drives a payment to the user” to the description.

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