The Clock: 3 December 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! Migration success continues - Early Life Support Phase 1 completed and Phase 2 set to accelerate! 
  • NEW! Industry Standing Data v18 Publication Date moved to January 2026
  • REMINDER: Christmas & Qualification working arrangements 
• Participant Checklist
  
  • NEW! Timelines for upcoming Qualification activities by Wave 
  • NEW! Request Migration start date updates to be in Kestrel before Sprint 1 starts
• Guidance Documents
  
  • NEW! Updated Qualification Assessment Document (QAD) Guidance Document
  • NEW! Data Integration Platform (DIP) Guidance Documents now available on Elexon’s website
• Upcoming events
  
  • Upcoming Governance Meetings
• What happened last week?
  
  • Last week's Governance Meetings
• Elexon & Data Integration Platform (DIP) Manager Update
  
  • NEW! Balancing & Settlement Code (BSC) Assessment Criteria approved 
  • NEW! DIP Manager online drop-in session: 5 December 2025     
  • REMINDER: MHHS Qualification Wave 4 Webinar: 9 December 2025 
• Retail Energy Code (REC) Update
  
  • REMINDER: Data Transfer Catalogue (DTC) & Energy Market Data Specification (EMDS) updated  
  • NEW! Guidance on Meter Technical Details for Non-Half-Hourly Metering Points, Reverse Migrated from Advanced 
• The Clock is taking a short festive break...

The Clock

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