This page contains Ad hoc SEC Releases implemented from 1 January 2021 up to and including 31 December 2021. These changes consist of both SEC documentation only and DCC System impacting changes arising from SEC Modification Proposals. A list of modifications implemented as an Ad hoc SEC Release in 2021 is outlined below:

Implementation date
31/12/2021
Modification Number Modification Name Stage Implementation Date Last Updated
MP188Temporary Communications Hub Ordering and Delivery Rules extensionImplemented23/12/202111/08/2025
MP185Additional controls to support the SoLR processImplemented17/11/202103/07/2024
MP161Significant Code Review – Retail Code ConsolidationImplemented01/09/202112/07/2024
MP148IVP Extension for pre-SMETS2 v4.2 DevicesImplemented23/04/202120/02/2025
MP139MVP and IVP dates for CHTSImplemented21/01/202127/03/2025
MP134AUse of SMKI Certificates relating to a SoLR eventImplemented04/10/202106/02/2025
MP128BIncorrect Gas Network Operator CertificatesImplemented11/11/202120/02/2025
MP111SMDA Budget AmendmentsImplemented25/01/202107/02/2025
Last Updated: 31/12/2024
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