The Clock: 21 May 2025

The Clock newsletter provides participants with updates and key information to support delivery of the MHHS Programme. The Clock will signpost you to events, plans, reports and documents to assist in planning, design, development, testing and delivery.

In this issue of The Clock we update you on:

• Programme News
  
  • Readiness Assessment 5/6 has closed
  • Planning Update
• Participant Checklist
  
  • REMINDER: Change Request CR061 issued for Impact Assessment 
  • REMINDER: MHHS Migration Supplier Agent and Software Provider Programme Participant Information Request (PPIR)
  • REMINDER: Participant Cutover Plans 
  • REMINDER: Data Cleanse activities and deadlines for Licensed Distribution System Operators (LDSOs), Suppliers and Meter Operators (MOPs 
  • REMINDER: SIT Functional & Migration Exit Reports 
  • REMINDER: Migration Supplier Submission Round 2 has opened! 

• MHHS Qualification Updates
  
  • REMINDER: Programme Participant Information Request (PPIR): Further Questions regarding the Use of the Meter Data Retrieval (MDR) function
  • REMINDER: Final Qualification Assessment Document (QAD) submissions for all Systems Integration Testing (SIT) participants and Non-SIT Licensed Distribution System Operators (LDSOs) 
  • NEW!: Qualification Approach and Plan and Annex 2 Consultation. 
  • NEW!: Non-SIT Qualification Testing Test Scenarios and Test Cases
  • REMINDER: Legacy Settlement Arrangements Management Letters participants 
  • REMINDER: Initial Qualification Assessment Document (QAD) Submission for Wave 1 participants
  • NEW! Non-SIT Supplier and Agent Qualification Test Plan Template v1.2 now available
  • NEW! QAD Director Sign-off due date clarifications
• Guidance Documents
  
  • NEW! Qualification Assessment Document (QAD) Guidance updated and initial QAD submission feedback
  • NEW! Non-SIT Supplier and Agent Pre-Integration (PIT) and Qualification Testing (QT) Assurance Guide. 
• Upcoming events
  • Upcoming Governance Meetings
  • Migration and Cutover Advisory Group (MCAG): 27 May 2025
  • Cross-Code Advisory Group (CCAG) : 28 May 2025
  •  REMINDER: Migration Drop In Session:- 28 May 2025
  •  
• What happened last week?

• •   Migration Drop In Session - 16 May 2025

The Clock

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