1. COR2557: Revisions to the Metering Charges Pricing Module on Unique Sites UK Link Committee – January 2014

2. COR2557 Overview Metering is currently still provided by Transporters for a small subset of metering installations known as ‘Special Supply Point Metering Installations’ (Unique Sites). Metering Charges for such Meters charges are based upon Size and Type of the Meter. Currently, where more than one meter point within an LMN attracts the same Metering Charge these Charges are shown at an aggregate Logical Meter Number rather than at Meter Point Level. For such sites attached to National Grid Distribution Networks it is proposed that the invoices are changed to provide Meter Point Level detail. The change solution will utilise the existing adhoc file (.ADN) and charge type (.ADP) to invoice the Provision, Maintenance and Installation of charges for National Grid Metering Assets via the IX to Users The existing back up file (supporting information) will be amended to depict the Provision, Maintenance and Installation of charges at Meter Point Reference level instead of LDZ level for all users, this is provided via email rather than IX.

3. Meter Asset Charges (MAC) are shown on the Supporting Information Files currently as shown below. They are separated into charges associated with: P (Provision) I (Installation) M (Maintenance) Where there are one or more meters within an LMN with the same Size and Type the aggregated charges will be presented in the supporting document as shown below Example below depicts a site with 4 MPRs As Is Billing Period From – Billing Period to LDZ ID Charge Type Charge Item Charge Type Description Site Name LMN Ref Assets on site Shipper on Site NWO Short Code Billable days Unit Rate Charge Amount

4. MAC charge will show lines for each MPR regardless of Size and Type Example below depicts a site with 4 MPRs To Be