1. Check your meters and supplies

Before MHHS goes live, make sure you know: What type of meters you have across your sites (smart, advanced, traditional, or unmetered) Which supplies need to be upgraded or replaced Who will manage each meter and supply going forward This helps you avoid delays and unexpected issues when switching to the new system. Contact us for help reviewing your portfolio

2. Protect your data during the transition

When MHHS begins, all meters will be migrated from the current industry systems to the new operating model. Without a clear plan, there is a risk your supplies may not be migrated to your chosen provider – leading to data gaps or missing information. We help you create a re-appointment plan and monitor that everything runs smoothly. Speak to us about protecting your data

3. Choose a delivery partner you can rely on

SMS is one of the only partners qualified to deliver every part of the MHHS infrastructure – from metering to data services. Working with our single, in-house team makes the process simpler, faster, and more cost-effective – today and long after MHHS goes live. Talk to us about partnering for MHHS

Preparing consumers and suppliers for Market-wide Half-Hourly Settlement

SMS delivers the full infrastructure and support required for Market-wide Half-Hourly Settlement – from metering upgrades to data services and analytics. With in-house teams and integrated systems, we make the transition to MHHS straightforward for both suppliers and consumers.

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Professional couple reviewing smart meter

What is Market-Wide Half-Hourly Settlement (MHHS)?

Market-Wide Half-Hourly Settlement (MHHS) is a major energy reform that will require all electricity to be settled using actual half-hourly consumption data by May 2027. By replacing estimated data with real usage, MHHS enables more accurate billing, flexible pricing, and a clearer view of when and how electricity is used.

MHHS affects all industry participants by introducing new data, infrastructure and compliance requirements. For consumers, it opens the door to smarter energy management and cost savings.

What you need to know

Migration starts October 2025

All metered and unmetered supplies will begin transitioning to half-hourly settlement. The final implementation deadline is May 2027.

Changes to energy settlement

Whether you’re a supplier, a commercial energy user or a domestic customer, MHHS changes how your energy usage is measured and settled.

Prepare now with SMS

Early preparation means smoother rollout, more accurate data, and better results for billing, planning, and carbon reduction.

Successful MHHS delivery depends on coordination across the industry. Our role is to take the weight off suppliers and end-users by providing a seamless, secure service – ensuring the transition is as smooth as possible for everyone involved.