Missing Scenario Variants in D0179
Summary
Within MHHS SIT there is a scenario where the LDSO generates a D0139 to the MS for a PPM but the requirement is for the MS to generate a D0179. There is a gap in the D0179 data required and that provided on the D0139. 21.5.1 & 21.5.6 under Schedule 14 states that where the DNO changes the energisation status, within 3 WD of changing the energisation status the DNO will send the D0139 or the D0179(21.5.6) to the MS and then the MS will generate the D0179 to the Supplier(21.5.6). Currently, the LDSO only generates the D0179 to the Supplier but not to the MOP and the only change under MHHS is to add the new variant MSS.
Latest update and next planned activity
Date of latest update
Latest Update
01/07/2025 - On 01 July 2025, the REC Change Panel voted to reject R0235 and approve R0235A, in line with the Code Manager's recommendation. The appeal window has closed.
Impacts Overview
Impacted REC Parties and Market Participants
Distribution Network Operator
Energy Supplier
Impacted REC Documents
Schedule 14 - Metering Operations
Priority and rationale
Standard
Priority last updated on 29 May 2026
Solution development
Problem Statement
DNOs and MOAs cannot fulfil their full obligations listed in Schedule 14 Metering Operations as there missing Scenario Variants in the Data Specification preventing them from sending the D0179 to all required Parties.
No documents available.
Change Plan
Change Report (Proposal Plan) approved by Change Panel
Completed
Start:
Due:
Completion:
04 Mar 2025Presented at Change Issues Group
Completed
Start:
Due:
Completion:
06 Mar 2025Presented at Change Issues Group
Completed
Start:
Due:
Completion:
01 May 2025Presented at REC Change Panel
Completed
Start:
Due:
Completion:
20 May 2025Original submission
Change details
- - -
14 Jan 2025
Change details
Missing Scenario Variants in D0179
Within MHHS SIT there is a scenario where the LDSO generates a D0139 to the MS for a PPM but the requirement is for the MS to generate a D0179. There is a gap in the D0179 data required and that provided on the D0139.
21.5.1 & 21.5.6 under Schedule 14 states that where the DNO changes the energisation status, within 3 WD of changing the energisation status the DNO will send the D0139 or the D0179(21.5.6) to the MS and then the MS will generate the D0179 to the Supplier(21.5.6).
Currently, the LDSO only generates the D0179 to the Supplier but not to the MOP and the only change under MHHS is to add the new variant MSS.
21.5.1 & 21.5.6 under Schedule 14 states that where the DNO changes the energisation status, within 3 WD of changing the energisation status the DNO will send the D0139 or the D0179(21.5.6) to the MS and then the MS will generate the D0179 to the Supplier(21.5.6).
Currently, the LDSO only generates the D0179 to the Supplier but not to the MOP and the only change under MHHS is to add the new variant MSS.
Incorrect sending of data
This is a current BAU issue so there needs to be confirmation that in this instance a D0139 should be issued.
This will only affect PPM customers.
Impacts
No details provided
Other (please provide details in Additional information box below)
alignment of data
Schedule 14 - Metering Operations
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No details provided
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No details provided
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Distribution Network Operators, Energy Suppliers
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No details provided
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No details provided
Priority & timing
No
This is a current BAU issue
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No details provided
Other (please provide details in the Additional information box below)
Activity
Implementation Date has been updated to 27 Feb 2026.