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XRN 4991
Enabling large scale utilisation of Class 3 – MOD0700

Last Updated
18 Sep 2019
Release Type
Implementation Date
28 Sep 2019
Proposer Gazprom Impacted DSC service area

Service Area 5 (Previous Dec 18 – Mar 21)

Metered Volume and Metered Quantity

Customer Change Team Leader


This Change looks:

- To create a mechanism for Xoserve to control SPC Class change transaction volumes and reject transactions in excess of a parameterised limit.

- To mandate that Shippers submit Class 3 readings in a maximum of weekly batched to be received and processed by Xoserve and apply appropriate controls to enforce this read submission frequency. For sites in EUC Band 1 a minimum of one read per week will be loaded to UK Link and subject to the existing validations and used for all downstream processes. Reads for EUC Bands 2-9 will continue as normal.

- To create logic and a mechanism for selecting and loading a subset of the reads received by Xoserve into the UK Link application and ‘assuring’ the quality of the reads which are not loaded for further processing.

- To develop an enduring data store for the reads which are not loaded into the UK Link application and making these reads available for reporting and analysis.

- To [asses the benefits of a] change [to] the Class 3 amendments reconciliation processes and supporting information to create single aggregated energy variances for the period between Actual Readings rather than creating daily energy variances for the periods between actual readings. For the avoidance of doubt, the change to the supporting information would be in the aggregation of the data displayed in the file, NOT the format or file structure.

Impacted Customer Types

  • Shipper
  • DNO


Document title Last updated Type
XRN4991 01/Aug/2019 PDF


Initial Review
Solution Consultation
Awaiting Delivery
In Delivery

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