News Hub


The Clock: 8 October 2025

The Clock: 8 October 2025

◆ Published: 08/10/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 1 October 2025

The Clock: 1 October 2025

◆ Published: 01/10/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 24 September 2025

The Clock: 24 September 2025

◆ Published: 24/09/2025

The latest edition of the weekly MHHS Newsletter is available here

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M10 and M13 approved

M10 and M13 approved

◆ Published: 24/09/2025

We're delighted to announce that at the Extraordinary Programme Steering Group (ePSG) meeting on Wednesday 24 September 2025, the Senior Responsible Owner (SRO) approved M10 and M13. Thank you to everyone involved. Find out more and what's happening next

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M10 Cutover: Day 1 operations successful and next governance steps confirmed 

M10 Cutover: Day 1 operations successful and next governance steps confirmed 

◆ Published: 22/09/2025

Following the cutover of Central Services and LDSOs to the MHHS arrangements in line with the M10 Cutover Plan, we've monitored Day 1 operations and observed a successful transition of messages across the DIP. Find out what's happening next

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Programme enters cutover to Milestone 10 (M10) with approval at Extraordinary Programme Steering Group (ePSG)

Programme enters cutover to Milestone 10 (M10) with approval at Extraordinary Programme Steering Group (ePSG)

◆ Published: 19/09/2025

At the Extraordinary Programme Steering Group (ePSG) meeting on Friday 19 September 2025, the Senior Responsible Owner (SRO) approved Tier 3 Milestone 0035: PSG to approve that the Programme can enter M10. Find out more and what this means

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Celebrating a major milestone: Successful completion of Programme Milestone 8 (M8): Code Drafting activity   

Celebrating a major milestone: Successful completion of Programme Milestone 8 (M8): Code Drafting activity   

◆ Published: 18/09/2025

We're delighted to announce the successful completion of Programme delivery of Code Drafting activities, a significant milestone in our journey towards MHHS. A huge thank you to everyone involved 

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The Clock: 17 September 2025

The Clock: 17 September 2025

◆ Published: 18/09/2025

The latest edition of the weekly MHHS Newsletter is available here

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Celebrating 200 Issues of The Clock

Celebrating 200 Issues of The Clock

◆ Published: 11/09/2025

On 10 September 2025, the MHHS Programme Newsletter reached another milestone with it's 200th issue! Find out how The Clock has changed since its first issue

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The Clock: 10 September 2025

The Clock: 10 September 2025

◆ Published: 10/09/2025

The latest edition of the weekly MHHS Newsletter is available here

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Request for urgent response to Milestone 10 (M10) Contingency Scenarios and Plans Impact Assessment

Request for urgent response to Milestone 10 (M10) Contingency Scenarios and Plans Impact Assessment

◆ Published: 08/09/2025

The Programme has been undertaking a contingency planning exercise to identify what action the Programme and participants may have to undertake if certain conditions are not met for M10 decision making. 

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All participants in Pathway 2 have been Qualified!   

All participants in Pathway 2 have been Qualified!   

◆ Published: 03/09/2025

We're excited to announce that all participants in Pathway 2 have been Qualified by the Balancing & Settlement Code (BSC) Performance Assurance Board (PAB) and Retail Energy Code (REC) Code Manager.

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The Clock: 3 September 2025

The Clock: 3 September 2025

◆ Published: 03/09/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 27 August 2025

The Clock: 27 August 2025

◆ Published: 27/08/2025

The latest edition of the weekly MHHS Newsletter is available here

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Non-Systems Integration Testing (SIT) Suppliers & Agents in Wave 1 have started Qualification Testing (QT) 

Non-Systems Integration Testing (SIT) Suppliers & Agents in Wave 1 have started Qualification Testing (QT) 

◆ Published: 27/08/2025

Most Wave 1 participants have successfully completed the necessary activities and have now started Qualification Testing. This represents a significant milestone in our journey towards MHHS. Thank you to everyone involved!

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Celebrating a major milestone: Successful completion of Systems Integration Testing (SIT) 

Celebrating a major milestone: Successful completion of Systems Integration Testing (SIT) 

◆ Published: 20/08/2025

We're delighted to announce the successful completion of SIT, a significant milestone in our journey towards Market-wide Half-Hourly Settlement. A huge thank you to everyone involved

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The Clock: 20 August 2025

The Clock: 20 August 2025

◆ Published: 20/08/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 13 August 2025

The Clock: 13 August 2025

◆ Published: 13/08/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 6 August 2025

The Clock: 6 August 2025

◆ Published: 06/08/2025

The latest edition of the weekly MHHS Newsletter is available here

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The Clock: 30 July 2025

The Clock: 30 July 2025

◆ Published: 30/07/2025

The latest edition of the weekly MHHS Newsletter is available here

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