The Clock: 15 October 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
  
  • NEW! Milestone 11 (M11) and M12 Update 
  • NEW! New and improved Migration section on the MHHS website and Collaboration Base!  
• MHHS Transition Update
  
  • REMINDER: Milestone 11 (M11) Cutover status reports 
  • NEW! Data Cleanse Self-declaration  
  • NEW! Data Cleanse Closure Report published  
• Participant Checklist
  
  • NEW! Timelines for upcoming Qualification activities by Wave  
  • NEW! Balancing & Settlement Code (BSC) Assessment Criteria Consultation and associated updates  
  • NEW! Migration Update 
• Upcoming events
  
  • Upcoming Governance Meetings 
• What happened last week?
  
  • Last week's Governance Meetings 
• Elexon & Data Integration Platform (DIP) Manager Update
  
  • REMINDER: Elexon Assurance Reporting Webinar: 16 October 2025 
  • NEW! DIP Manager drop-in session: 17 October 2025    
  • REMINDER: DIP Change Request Consultation: DCR0006   
• Retail Energy Code (REC) Update
  
  • NEW! REC MHHS Wiki page  
  • NEW! Extraordinary Data Specification and Data Transfer Catalogue (DTC) Release on 22 October 2025 

The Clock

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