The Clock: 6 May 2026

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
  
  • NEW! Participant progress through the MHHS journey 
• Participant Checklist
  
  • NEW! Programme Participant Information Request (PPIR): Independent Programme Assurance (IPA) Consequential Change 
  • REMINDER: MHHS Milestone 16 (M16) Settlement Timetable Consultation
  • NEW! Upcoming deadlines for Migration Pathways
  • NEW! Migration Update
  • NEW! Agent Coverage
  • NEW! Participant Lessons Learned Central Repository updated 
• Guidance Documents
  
  • REMINDER: Guidance documents to help navigate the End-to-End (E2E) participant journey through qualification to Go-Live 
  • NEW! Non-Systems Integration Testing (SIT) Journey Maps updated
  • NEW! Qualification Assessment Document (QAD) Guidance Document updated 
  • NEW! Elexon Enduring Qualification in the MHHS arrangements
• Upcoming events
  
  • Upcoming Governance Meetings
• What happened last week?
  
  • MHHS Webinar: M16 Settlement Timetable Consultation: 29 April 2026 
• Retail Energy Code (REC) Update
  
  • NEW! I0240 Data alignment of meter information through MHHS Migration
  • NEW! Sharing Meter Technical Details (MTDs) on MHHS Reverse Migrations, no Gaining Meter Operator Agent (MOA) details

The Clock

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