# A guide to the new Agent roles in the world of Market Wide Half Hourly Settlement

- Link: https://imserv.com/blog/a-guide-to-the-new-agent-roles-in-the-world-of-market-wide-half-hourly-settlement/
- Published: 2024-09-03T09:20:46+00:00

As we’ve [spoken about before](https://www.linkedin.com/feed/update/urn:li:activity:7142871625544241153),
all current agent roles will be changing as we transition to MHHS.  The new Target
Operating Model (TOM) for MHHS references the new roles and redesigns the way data
flows around the energy system.  As we move to become accredited across all these
new roles, we’ve created a brief introduction to what each of them within the new
TOM.

 * **_Metering Services Advanced (MSA) & Meter Services Smart (MSS)_**

The new Metering Services roles are split into two:

**MSA **– this role replaces the current Advanced Non-Half Hourly (NHH) and Half
Hourly (HHS) Meter Operator (MOP) Agent role and is responsible for the installation
and maintenance of Meters in the Advanced Market Segment.  This includes all AMR
and CT meters that are both HH and non HH.

**MSS **– this covers the installation and maintenance of Meters in the smart and
non-smart Market Segments.

 * **_Meter Reading Service (MRS)_**

The Meter Reading Service (MRS) provides physical Register Readings (RRs) for Meters
where Settlement Period Level data is not available or cannot be accessed from Meters
in both the Smart and non-smart Market Segments (i.e. traditional meters).  This
replaces the existing pedestrian reads service.

 * **_Meter Data Retriever (MDR)_**

This is a sub-service of the Smart Data Service (SDS). The MDR is responsible for
connecting to the DCC and retrieving smart metering data for MHHS purposes. Registered
Suppliers may choose to perform this role themselves or appoint a third party MDR
service provider.  IMSERV will be an accredited MDR once the qualification process
is complete.

 * **_Smart Meter Data Services (SDS)_**

The Smart Data Services covers the Meter Data Retrieval Service, Processing Service(
Smart) and Meter Reading Service, which together enable the settlement of the SMART
market segment (SMART & Traditional meters) which are mostly at a consumer or small
SME level. This replaces traditional Data Collection and Data Processing roles.

The role of Data Aggregation, previously delivered by the NHHDA and HHDA, now moves
to be a service under the new Market-wide Data Services role, which is the service
that provides integrity checks and calculations on Settlement Period level data 
ingested by BSC Central Settlement Systems from the Processing Service(s) (Smart),
the Advanced Retrieval and Processing Service and the Unmetered Supplies Data Service.
This is administered by [Elexon](https://www.elexon.co.uk/).

 * **_Advanced Data Services (ADS)_**

The Advanced Data Service is the Qualified service that provides the Advanced Retrieval
and Processing Service (ARP), the service that retrieves and processes Settlement
Period Level data from Advanced Meters that are in the Advanced Market Segment. 
This includes all large energy consumers currently using both NHH and HH AMR and
CT meters, as well as other complex meter types.

 * **_Unmetered Supplies Data Service (UMSDA)_**

The Unmetered Supplies Data Service (UMSDS) in the MHHS TOM is the service that 
calculates Settlement Period Level consumption data for unmetered supplies.  Unmetered
supplies typically cover elements like street or railway lighting, traffic signs
etc.  These are managed in a different way and IMSERV has extensive expertise in
managing the complexities of the unmetered market, both for suppliers and local 
authorities, via Power Data Associates, now part of the IMSERV family.

To find out more about the changes coming from MHHS, and how you need to prepare,
[get in touch today.](https://imserv.com/contact/)