Glossary

Elexon appointed Senior Responsible Owner for MHHS

We are delighted to receive Ofgem’s decision today (20 April) to appoint Elexon as the Senior Responsible Owner (SRO) and Programme Manager (PM) for Market-wide Half Hourly Settlement (MHHS).

Co-ordinating the transition to Market-wide Half Hourly Settlement

The SRO and PM roles involve co-ordinating the development, testing, integration and transition activities of around 180 organisations across the energy sector.  

We acknowledge there is a lot of hard work required to make the MHHS programme a success and to deliver the programme benefits.

Benefits of Market-wide Half Hourly Settlement

MHHS is one of the biggest changes to the electricity market since competition was introduced in 1998. It is also part of the critical path to net zero and a smarter energy system, built on the rollout of smart meters. 

The benefits of MHHS include:

  • A faster, more accurate Settlement processes for market participants
  • Net benefits to consumers of up to £4.5bn by 2045, according to Ofgem’s Final Business Case 

Next steps

We will now start to mobilise the programme and we will be seeking input from industry on programme set up, industry engagement and resultant budget.

We want to ensure that we are set up to deliver MHHS successfully for all programme parties and their customers. We plan to share further details soon and fully engage with BSC Parties on their expectations of us in these important roles.

Finding out more information

Visit our MHHS hub page to find out more information about our work. This includes the technical leadership we are providing to two industry working groups (the Code Change and Development Group and the Architecture Working Group) which have been developing the lower-level detail to support the MHHS Target Operating Model.

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