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Smart Energy Code

All modification proposals to the SEC, tracked through their lifecycle. Administered by SECAS (Gemserv).

How SEC modification proposals work

The SEC (Smart Energy Code) governs smart metering infrastructure: DCC (Data Communications Company) services, smart meter communications, and data access. Modification proposals (DPs and MPs) go through Development, Refinement, and Authority/Self-Governance decision stages. SECAS (part of Gemserv) administers the code. The SEC Panel meets monthly.

The change process

Changes affecting DCC systems require impact assessments. Proposals progress through Development (scoping and design), Refinement (detailed assessment and consultation), and a final decision stage , either an Authority Decision from Ofgem or a Self-Governance route where the SEC Panel decides.

Key concepts

  • Authority Decision modifications are decided by Ofgem. Self-Governance modifications are decided by the SEC Panel.
  • DCC Impact Assessments evaluate the cost and complexity of changes to smart metering systems.
  • SEC interacts with the BSC (settlement data), REC (meter registration), and DCUSA (distribution connections) on cross-code changes.
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GovernanceStageRaised
Self-GovernanceWorkgroup10 Mar 2026
DP317SMETS1 FOC ANSO implementation housekeeping changes
Open page
Self-GovernanceWorkgroup10 Mar 2026
DP318Incorporation of Category 3 Issue Resolution Proposal into the SEC – Batch 12 and GBCS Changes
Open page
Self-GovernanceWorkgroup9 Mar 2026
DP316DUIS SRV12.2 Pre-Notification of CHF Ambiguity
Open page
Self-GovernanceWorkgroup6 Mar 2026
DP315Dual running of DCC Smart Meter Communication Licence
Open page
Self-GovernanceConsultation9 Dec 2025
MP312Caching SRV 4.10 for SMETS1 Devices
Open page
Self-GovernanceWorkgroup9 Dec 2025
MP313Remove the DCC requirement to delete CHs from the SMI
Open page
Self-GovernanceWorkgroup11 Nov 2025
DP307Extension of MP219 ‘Accessing Consumption Data on behalf of SEC Parties’ concept to section I 1.3
Open page
Self-GovernanceConsultation14 Oct 2025
MP306Alternative Self Service Data solution for Service Users
Open page
Self-GovernanceWorkgroup13 Oct 2025
DP305Communications Hub Returns Process Review
Open page
Self-GovernanceWorkgroup9 Sept 2025
MP301Review of Additional Registration Data (Gas Transporters)
Open page
Self-GovernanceWorkgroup9 Sept 2025
MP302Supplier Alerts to ENOs
Open page
Self-GovernanceWorkgroup8 Sept 2025
MP300Additional Operational Metrics to Measure on Success
Open page
Self-GovernanceWorkgroup10 Jun 2025
MP294Review of DCC Maintenance Activities and Temporary Additional Allowance
Open page
Self-GovernanceConsultation9 Jun 2025
MP293Deferment of DCC Planned Maintenance during Adverse Weather
Open page
Self-GovernanceWorkgroup13 May 2025
MP291DNO Alerts to Suppliers
Open page
Self-GovernanceConsultation8 Apr 2025
MP289BCDR Engagement
Open page
Self-GovernanceConsultation11 Feb 2025
MP281Install Codes in the SMI
Open page
Self-GovernanceWorkgroup13 Feb 2024
DP266Alternative SMETS1 UTRN Generation
Open page
Self-GovernanceWorkgroup13 Feb 2024
MP265Implementing ADT changes in response to a Security incident
Open page
Self-GovernanceWorkgroup11 Dec 2023
DP257DCC Management of Duplicate Messages
Open page
Self-GovernanceWorkgroup14 Nov 2023
MP255WAN issues during Smart Meter installations
Open page
Self-GovernanceWorkgroup8 Aug 2023
MP244DCC Alert for a Restored Energy Supply
Open page
Self-GovernanceConsultation5 May 2023
MP241Interoperability Checker Update
Open page
Consultation14 Feb 2023
MP234Addition of GDPR Principles of Public Task and Legitimate Interests into the SEC
Open page
Workgroup14 Feb 2023
MP235Enhanced Meter Data Access for Other Users
Open page
Workgroup30 Sept 2022
MP218Review of the SEC Charging Methodology
Open page
Self-GovernanceWorkgroup10 May 2022
DP206Allowing Generation Licence Holders to Apply Export MPANs
Open page
Self-GovernanceWorkgroup10 May 2022
MP205Updating terminology to align with the NCSC
Open page
Self-GovernanceWorkgroup20 Sept 2021
MP184Increase Smart Capability of SMETS2 Twin Element ESME to support Solar and Storage use cases
Open page
Workgroup15 Jun 2021
MP169Managing SEC Obligations and the Consumer's Right to refuse a Smart Meter
Open page
Self-GovernanceWorkgroup27 May 2021
MP165ESME Voltage Accuracy
Open page
Workgroup20 Jul 2020
MP137Sharing information on Defects and Issues
Open page
Self-GovernanceWorkgroup12 Nov 2019
MP094Supporting prepayment customers in no SM WAN scenarios
Open page
Self-GovernanceWorkgroup12 Sept 2019
MP085BSynchronisation of smart meter voltage measurement periods (meters currently installed)
Open page