Be ready for MHHS

Market-Wide Half-Hourly Settlement (MHHS) is a regulatory initiative aimed at settling electricity consumption and generation on a half-hourly basis. This system enhances the accuracy of energy usage data and encourages more efficient energy use, reflecting up-to-date time consumption patterns.

The market will begin operating to the new MHHS Target Operating Model in October 2025.

Enhanced data accuracy

With MHHS, all electricity suppliers are expected to utilise consumption data (whether actual or estimated) in order to significantly improve the accuracy of energy consumption reporting. This detailed data will help suppliers and customers understand energy usage patterns more precisely, leading to more accurate billing and better energy management.

Increased connectivity requirements

To support half-hourly data availability, meters must maintain reliable connectivity to transmit data consistently. Ensuring continuous, reliable communication between meters and central systems will be crucial, especially in remote or hard-to-access locations.

Integration of multiple data sources

Managing half-hourly data from a multitude of meters will require advanced integration capabilities. Suppliers will need sophisticated systems to consolidate and process large volumes of data from various sources seamlessly, ensuring consistency and reliability across all reporting levels.

Up-to-date data management

MHHS will necessitate up-to-date data management to ensure timely and accurate settlement. Suppliers must adopt systems that can handle the continuous influx of data, processing it efficiently to provide the latest information for both operational and regulatory purposes.

Handling varying tariffs

With the introduction of MHHS, managing varying tariffs becomes more complex. Suppliers must account for dynamic pricing models, reflecting peak and off-peak usage accurately. Advanced analytics will be required to handle these complexities and ensure precise billing.

Access and maintenance of meters

The transition to MHHS will require regular access to meters to ensure they are functioning correctly and transmitting data accurately. Technicians must be equipped with the right tools and expertise to address any connectivity or functionality issues promptly, minimizing disruptions.

Data security and privacy

With the increase in data volume and frequency, ensuring the security and privacy of half-hourly data becomes even more critical. Robust security measures must be in place to protect sensitive customer data and comply with data protection regulations.

Cost and resource implications

Implementing MHHS will involve significant investment in upgrading meter infrastructure and data management systems. Suppliers must balance these costs with the operational benefits of more accurate data and efficient energy management.

Regulatory compliance

MHHS will introduce new regulatory requirements for data reporting and settlement. Suppliers must ensure their systems and processes comply with these regulations to avoid penalties and support the overall goal of a more efficient and transparent energy market.

Elective Half-Hourly Settlement (EHHS)

EHHS allows customers to voluntarily settle their electricity consumption on a half-hourly basis, enabling more accurate billing based on real-time usage. This interim measure helps both suppliers and customers adjust to half-hourly settlement, paving the way for the forthcoming full rollout of MHHS.

The solution

By addressing these changes with half-hourly compliant metering and data management solutions, energy suppliers can successfully transition to MHHS, enhancing the accuracy of energy usage data and improving overall efficiency. TMA’s comprehensive suite of tools and services is designed to support suppliers through this transition, ensuring seamless integration, reliable data services, and exceptional operational performance.