SECMP0015 GPF timestamp for reading instantaneous Gas values

Proposer Tim Newton
Lead Analyst Harry Jones
Date raised 31/05/2016
StageRefinement Process
Implementation date Targeted for November 2020 SEC Release
Latest update SECAS are currently awaiting the updated IA costs from DCC for the modification before being brought to the next available Panel meeting.

What is the issue?

Instantaneous Gas Smart Metering Equipment (GSME) register values can be read from the Gas Proxy Function (GPF). These will not normally be in-line with the readings on the GSME, since the GSME only provides intermittent updates to the GPF, typically once every 30 minutes. Without a timestamp to know when the GSME last updated the GPF, the Supplier cannot know how up to date the information is.

What is the solution?

The proposed solution is to allow Parties and devices reading the instantaneous values from the GPF to know the time on the GSME's clock when the value was provided. This will also allow In Home Displays (IHDs) and Pre-Payment Interface Devices (PPMIDs) to determine and display the time of the last updates.

Who is impacted?

Small Suppliers
Large Suppliers
Gas Network Parties
Other SEC Parties

What SEC documents are affected?

SEC Schedule 8 ‘Great Britain Companion Specification’
SEC Schedule 9 ‘Smart Metering Equipment Technical Specification 2’
SEC Schedule 10 ‘Communications Hub Technical Specifications’
SEC Schedule 11 ‘Technical Specification Applicability Tables’
SEC Appendix AF ‘Message Mapping Catalogue’

Modification documents

SECMP0015 Working Group Consultation Responses
SECMP0015 Working Group Consultation
SECMP0015_Working Group_03_2404 - Meeting Headlines
SECMP0015 - Working Group Meeting 2 - Final Minutes
SECMP0015 - Working Group Meeting 1 - Final Minutes
SECMP0015 - GPF timestamp - Solution Design Document
SECMP0015 - Business Requirements
SECMP0015 Initial Modification Report
SECMP0015 - Modification Proposal Form
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