MP152 Consumption on Smart Polyphase Electricity Meters

Proposer Chris Brown
Lead Analyst SEC Change
Date raised 29/01/2021
StageWithdrawn
Implementation date TBC
Latest update On 23 November 2022 the Proposer withdrew this modification as they could not commit to effectively engage in the modification process. The Proposer also did not wish to pursue the modification as there was little support within industry.

What is the issue?

Polyphase meters are electrical meters used for measuring three phase electricity supply. Polyphase meters are sometimes used in scenarios where each phase is used for a specific purpose e.g. for heating and/or Electric Vehicle charging. Currently smart polyphase meters only provide profile consumption data as a combined value across the three phases. Therefore, the tariffs offered to those consumers who have polyphase metering equipment is applied to the cumulative consumption of all three phases combined, rather than individual phase data. Although, some electricity meters support the measurement of each phase, the Smart Energy Code (SEC) and DCC systems do not currently support functionality that would allow the individual phase data to be retrieved.

What is the solution?

The Proposed Solution is to amend the Great Britain Companion Specification (GBCS) and Smart Metering Equipment Technical Specifications (SMETS) to allow individual phase data to be retrieved where available.

Who is impacted?

DCC
Large Suppliers
Small Suppliers

Timeline

23 Jan 2021
Discussed at Change-Sub-Committee
29 Jan 2021
Draft Proposal Raised
23 Feb 2021
Modification discussed at Change-Sub-Committee
16 Aug 2021
to
03 Sep 2021
Request for information

Modification documents

MP152 Modification Report v0.5
23/11/2022
MP152 Business Requirements v0.2
27/10/2022
MP152 September 2022 Working Group Summary
05/10/2022
DP152 Request for Information responses
07/09/2021
DP152 Request for Information
16/08/2021
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