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XRN 5585
Flow Weighted Average Calorific Value - Phase 2 Service Improvements

Last Updated
10 Jan 2024
Release Type
Implementation Date
Proposer Xoserve Impacted DSC service area


To be confirmed

Customer Change Team Leader


Following successful implementation of XRN5231 – Provision of a FWACV Service, the CDSP now operates the calculation of Local Distribution Zone (LDZ) average Calorific Values, which are utilised in several industry processes.


To ensure the Service could be delivered to the necessary timescales, a number of Distribution Network requirements and process improvement opportunities which were identified during the delivery phase were agreed to be deferred until a later date.


These requirements and process improvement will enable the service to be operated in a more efficient and effective manner, from a CDSP perspective and in turn will improve the interactions that Distribution Network operational teams manage.  

In summary, the new requirements and process improvement opportunities that have been identified fall in to the following areas;

  • Automation of manual processes
  • Reduce the frequency and volume of email notifications that are provided to DNs as part of the FWACV process
  • Make interactions more effective by amalgamating datasets where possible – e.g. combined loss of record notifications
  • Ensure information is provided to the relevant Distribution Network operational contacts
  • Assess any additional opportunities to improve the efficiency and effectiveness of the FWACV Calculation process.

Impacted Customer Types

  • DNO


Document title Comment Last updated CHMC outcome
Change Proposal To be presented at ChMC 09/11/2022 14/11/2022 Approved at ChMC 09/11/2022
Initial Review Stage not yet reached N/A N/A
DSG Discussion N/A 20/12/23 N/A
High Level Solution Options N/A  18/12/2023 N/A
Solution Review Change Pack 3230.1 - LO - PO   30/10/2023 This Change Pack has been withdrawn.
Revised Solution Review Change Pack 3224.1 - VO - PO 10/01/2024

Solution option 1 approved at ChMC 10/01/2024

Proposed funding split approved 100% DNO

Detailed Design Stage not yet reached N/A N/A
Evaluation Quotation Reports (EQR) Stage not yet reached N/A N/A
Business Evaluation Reports (BER) Stage not yet reached N/A N/A
Change Completion Reports (CCR) Stage not yet reached N/A N/A


Initial Review
Change Proposal Raised 04/11/22
Status Presented at ChMC 09/11/2022
Approved into Capture 09/11/22
Status ChMC approved into Capture
Solution Consultation
Revised Solution Option Change Pack issued 18/12/23
Status ChMC approved solution option 1
Awaiting Delivery
ChMC approved solution option 10/01/24
Status Detailed design will commence
In Delivery
Expected: 00/00/00
Status Awaiting
Expected: 00/00/00
Status Awaiting

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