Missing Scenario Variants in D0179 Alternate Solution
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
This Change Proposal has been implemented as part of the February 2026 REC Release.
Impacts Overview
Impacted REC Parties and Market Participants
Distribution Network Operator
Energy Supplier
Meter Operator Agent
Impacted REC Documents
Schedule 14 - Metering Operations
Other Industry Codes impacted
Balancing and Settlement Code (BSC)
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. This alternate solution proposes the removal of the D0179 from the legal text and the D0139 to be used in all scenarios.
No documents available.
There is currently no Change Plan.
Original submission
Change details
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1 May 2025
Change details
Missing Scenario Variants in D0179 Alternate Solution
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. The alternate proposes to remove the D0179 from Schedule 14 and use only the D0139 in all scenarios.
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.
The alternate proposes to remove the D0179 from Schedule 14 and use only the D0139 in all scenarios.
R0235 Missing Scenario Variants in D0179
Impacts
No details provided
Other (please provide details in Additional information box below)
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Schedule 14 - Metering Operations
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No details provided
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No details provided
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Market Message Catalogue
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No details provided
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No details provided
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Distribution Network Operators, Energy Suppliers, Meter Operator Agent
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Balancing and Settlement Code (BSC)
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No details provided
Priority & timing
No
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No details provided
Other (please provide details in the Additional information box below)
Activity
Status has been changed to Implemented.
Implementation Date has been updated to 27 Feb 2026.