The GB energy market is on the brink of a significant transformation with Ofgem’s Market-wide Half Hourly Settlement (MHHS) programme. As subject matter experts in the energy sector, Engage Consulting is here to guide you through your MHHS implementation and the four crucial stages your business needs to navigate for a successful transition and benefits realisation.
Understanding MHHS and Its Purpose
MHHS represents an important evolution in electricity settlement arrangements that leverages smart meter technology and the rich data it already provides. Half-hourly data improves billing and settlement accuracy, supports critical demand forecasting and commercial functions, and creates a more flexible and responsive energy market enabled by MHHS implementation.
Readiness
The foundation of MHHS implementation begins with understanding both its requirements and opportunities. Many organisations are unsure whether MHHS represents merely a regulatory obligation or a genuine business opportunity.
We help define a clear strategy and target operating model that addresses both perspectives. By clarifying programme requirements and assessing their internal impact, we enable organisations to move forward confidently. Our comprehensive overall readiness assessment and pre-qualification assessment covers all critical components – from system readiness and testing to operational preparedness – ensuring your programme delivery meets the required standards before formal qualification begins.
Qualification
With qualification having a specific window timeline, this stage demands robust programme management and clear testing strategies. We provide the programme management support to manage the end-to-end qualification journey, ensuring you have the right capability and capacity.
Our expertise includes developing and managing testing strategies that deliver required programme outcomes and qualification assessment support that meets programme standards. Should timeline pressures arise, we provide milestone recovery support to help you stay on track with programme requirements.
Migration
The migration stage, also having a specific window timeline, is where strategic planning transforms into action. At Engage Consulting, we understand that successful migration hinges on getting the fundamentals right.
Your migration strategy must be comprehensive and practical, particularly regarding MPAN selection. Data quality can make or break a successful migration, so pre-migration data cleansing is essential. Our experience shows that having the proper support for operational issues and cross-industry engagement during this phase is crucial. We help organisations stay on track with programme milestones, providing recovery support if needed to maintain momentum.
Benefit Realisation
MHHS brings significant opportunities through enhanced data capabilities. Our expertise helps organisations develop strategies for new service propositions that are both compelling for customers and cost-effective to deliver.
System readiness is crucial for capitalising on these new opportunities. We support organisations in assessing their data strategy and systems capabilities to ensure they’re positioned to achieve both operational and commercial benefits. Through careful proposition testing and implementation support, we help businesses maximise what MHHS can offer to enable benefits realisation.
Whether you’re at the start of your MHHS journey or already progressing through the stages, Engage can provide the expertise needed to work with and support your organisation.


















