What is the Timeline for the Market Wide Half Hourly proposed changes?

The rollout of MHHS will occur in phases, with the migration phase scheduled for completion by May 2027. This staggered approach allows businesses and energy providers ample time to onboard this new ambitious energy system. The aim is to conclude the MHHS scheme by July 2027. Ofgem’s target for moving to the new four-month settlement timetable.