GT Response to Action AMR014 Project Nexus AMR Workgroup 20th July 2010 . 1 | Energy Networks Association

GT Action from 7th July 2010 AMR Workgroup Meeting What meter (asset & read) information do Transporters require Before the day On the day After the day For Settlement purposes Network Operation purposes 2 | Energy Networks Association

Approach GTs have reviewed the question on two levels UNC obligations Network Operations Following is a high level analysis Requires further analysis once regime is determined 3 | Energy Networks Association

Data Requirements to Satisfy UNC Obligations GTs require sufficient data to meet Code, licence & legislative obligations The current level of data set out in UNC is sufficient for balancing & settlement purposes Before the day On the day After the day Reconciliation and Billing The level of accuracy of the data determines the quality of the processes and the quality of the data held on the Supply Point Register Implementation of Smart meters in itself does not need to change these UNC obligations – but industry may desire change Data from Smart meters should improve the operation of these processes Industry desire to examine the merits of changing the ‘close out’ period? A balance is needed to ensure the accuracy & quality of the data 4 | Energy Networks Association

Network Operation Requirements General The current level of data set out in UNC is sufficient Again accuracy of the data is key Before the day Information held on the Supply Point Register (e.g. site ownership, asset data & load details) NExA related information (e.g. Offtake Profile Notices) On the day Within day consumption information from DM Mandatory sites Under review as part of DM unbundling After the day Receipt of certain data after the day for Network Planning Operations Consumption data for deriving AQ, SOQ & for Section H Demand Estimation & Forecasting 5 | Energy Networks Association

Requirements in a SMART World Difficult to pre-judge when it is still largely an ‘unknown’ Need to understand the quality & quantity of data required to optimise industry processes GT requirements will be dictated by the regime but as a minimum GTs will still require accurate data (for Network operation & UNC obligations), received in a timely fashion & in a controlled environment, for example Access to data held on the Supply Point Register for Operational purposes Energy for transportation invoices & settlement. Frequency to be determined during SMIP & Nexus Site level data for certain sites for day to day Network activities (daily/hourly site consumption data) (e.g. Emergencies and Interruption management) Meter asset data Data to derive site AQ, SOQ & SHQ (level depending on site), EUC (depending on regime) Data to share out ‘un-allocated energy’ Potential for increased reads for demand modelling processes 6 | Energy Networks Association