MP094 Supporting prepayment customers in no SM WAN scenarios

Proposer Andy Knowles
Lead Analyst Joe Hehir
Date raised 12/11/2019
StageRefinement Process
Implementation date Unknown
Latest update SECAS will now develop a straw man solution with the Proposer before returning to the Working Group.

What is the issue?

The Proposer has raised concerns that the minimum functional requirements set out in the second major version of the Smart Metering Equipment Technical Specifications (SMETS2) do not result in a device that is sufficiently robust to serve smart prepayment customers effectively. Similarly, the Adoption and Enrolment of SMETS1 meters in the Data Communications Company (DCC) leads to the same loss of resilience in relation to SMETS1 meters.

The Proposer seeks a solution to be able to effectively manage SMETS2 prepayment customers in no Wide Area Network (WAN), intermittent WAN or DCC outage scenarios equivalent to the commercially developed solution available from the Secure SMETS1 product.

Does this issue affect your you? Send us your comments to

Who is impacted?

Large Suppliers
Small Suppliers


12 Nov 2019
Draft Proposal raised
03 Apr 2020
05 May 2020
19 Jun 2020
Converted to Modification Proposal
05 Aug 2020
Working Group

Modification documents

DP094 Request for Information responses (WHITE)
DP094 Request For Information
DP094 Modification Report v0.4
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