SECMP0038 Sending Commands via PPMIDs

Proposer Andy Knowles
Lead Analyst SEC Change
Date raised 01/06/2017
StageWithdrawn
Implementation date Unknown
Latest update On 1 June 2022, the Proposer decided to withdraw this modification due to the Working Group and the SSC concluding that the proposed solution would not be viable due to its security implications.

What is the issue?

As a Prepayment Meter Supplier, the Proposer's customer base tends to be mainly in populous areas which usually have good signals. However, the risk of unpredictable or poor Wide Area Network (WAN) must be considered higher in less populous areas. This is especially critical for prepayment customers, since configuration Commands affect supply of energy to their homes. It is not viable to wait for an uncertain period for WAN quality to increase sufficiently, before their supply issues are addressed. SMETS1 solutions to address this problem have been developed and refined over 15 years, but the Proposer indicates that there are no current SMETS2+ solutions, other than sending an engineer with a Hand-Held Terminal (HHT) to the Consumer’s Premises.

What is the solution?

This modification seeks to offer the option for Prepayment Meter Interface Devices (PPMIDs) to be able to pass fully formed GB Companion Specification (GBCS) Remote Party Commands onto the Home Area Network (HAN). It is expected that the Commands would usually be routed from the Supplier to the PPMID via Wi-Fi connectivity.

Who is impacted?

Large Suppliers
Small Suppliers
Other SEC Parties
DCC

What SEC documents are affected?

Schedule 8 'GB Companion Specification'

Timeline

01 Jun 2017
Modification Proposal raised
08 Aug 2017
Working Group meeting
16 Oct 2017
to
02 Jul 2018
DCC Preliminary Assessment
10 Sep 2018
Working Group meeting
25 Oct 2018
Working Group meeting
26 Feb 2019
Working Group meeting

Modification documents

SECMP0037/SECMP0038 February 2019 Working Group meeting summary
18/03/2019
Issue SEC0009/SECMP0032/SECMP0038 October 2018 Working Group meeting summary
18/12/2018
SECMP0031/SECMP0038 September 2018 Working Group meeting summary
20/09/2018
SECMP0038 DCC Preliminary Assessment
08/08/2018
SECMP0038 Solution Design Specifications
16/10/2017
SECMP0038 August 2017 Working Group meeting summary
29/08/2017
SECMP0038 Initial Modification Report
12/06/2017
SECMP0038 Modification Proposal
01/06/2017
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