P432 ‘Half Hourly Settlement for CT Advanced Metering Systems’

Formal title: Half Hourly Settlement for CT Advanced Metering Systems

This Modification proposes to align the BSC definition of an Advanced Meter with that in the Standard License Conditions (SLC) and to set explicit Half Hourly (HH) Settlement obligations for Current Transformer (CT) Advanced Meters ahead of the migration to Market-wide Half-Hourly Settlement (MHHS). 

MHHS requires that all Metering System Identifiers (MSIDs) are settled on a HH basis. The Code Change and Development Group (CCDG) has recommended Non-Half Hourly (NHH) settled CT Advanced Meters are moved to settle HH by October 2023, and all new connections for CT Advanced Meters to settle HH from October 2022.

If this recommendation is not implemented the risk that there will be insufficient time for Customers, Suppliers and their Agents to address issues that may arise will be increased, especially against the backdrop of the larger MHHS migration activities that will be needed for Smart Meters.


Current Status

Assessment Procedure
Report Phase
With Authority
Awaiting Implementation


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