Copyright National Grid Metering 11-01-08 NGM Daily Meter Reads UNC RG 0175.

Copyright National Grid Metering 11-01-08

NGM Daily Meter Reads

UNC RG 0175


Overview of NGM Datalogger Read Process Flow

Provide remote access to Gas

Shippers

Calculate and produce DM

invoices

Deliver Files to

CustomersCommunication

Cloud

XO

SE

RV

E

Meter & Logger Collection

Modems

Data Processing Server

IX35 HR


Metscan / Metretek Main Activities•Collect call data from units•Schedule units for next call slot•Store interval and time of call data•Calculate and store exact 6am reading•Create file’s at scheduled times

DLCS Activity •Receive files and validate for format•Carry out validation routines (consumption, Convertor tolerance etc)•Produce validation warnings and failures for investigation•Create files, in appropriate formats and deliver to shedule•Collect and record changes of shipper, DM Inter/ Firm and NDM status to apply to file delivery•Produce monthly invoice for DM Asset rental and DM read provision charges

Overview of NGM Datalogger Read Collection Process

Collect Data fromDatalogger Units

Validate, store &Deliver to customers

Provide remote access to Gas Shippers

Remote Access System•Provide shipper access to hourly interval consumptions to gas shippers.•Update every 4 hours with hourly data

Calculate and produce DM invoices

DM Invoicing•Produce monthly invoice for DM Asset rental and DM read provision charges

Deliver Files to Customers


Data Delivery Frequency Delivery Point Overview of Content

1. DM Daily Read File Daily by 8:15am Xoserve Start and End of Gas day readings for DM sites

2. Unique Site Daily Reading File

Daily by 11am Shippers Start and End of Gas day readings for Unique Sites

3. DM Bulletin Board Every 4 hours Remote access system. Hourly consumption data for shipper access.

4. NDM Daily Reading file Daily delivered at D+14 Xoserve Validated Gas day readings and consumption data for DM’s and NDM’s Dataloggers.

5. Hourly Interruptible Data Every 4 hours from 6am National Grid Gas - Operations Hourly consumption data.

6. Hourly DM Firm Data Every 4 hours from 6am National Grid Gas - Operations Hourly consumption data.

7. 7am Interruptible hourly data Daily National Grid Gas - Operations Interruptible hourly Consumption data from 6 – 7am.

8. 7am DM Firm hourly data Daily National Grid Gas - Operations DM Firm hourly Consumption data from 6 – 7am.

9. Interruptible Daily File Daily National Grid Gas - Operations Hourly consumption data from the previous 24 hours.

10. DM Firm Daily File Daily National Grid Gas - Operations Hourly consumption data from the previous 24 hours.

11. Unique Site Daily Reading File

Daily Xoserve Start and End of Gas day readings for Unique Sites.

Daily Read Delivery Requirements


Process Flows

Read Delivery

Liabilities

Asset Changes (MEX,DL Installs, DL Removals)

Faults & Maintenance

DM Queries From Shippers

Queries From Ops & Trading

All Invoicing

Information to IDN’s


Read Delivery

Process Flows 16.0



Liabilities

Process Flows 2.0



Asset Changes

Process Flows 1.0, 5.0, 5.1, 6.0, 7.0







Faults & Maintenance

Process Flows 14.0, 15.0, 17.0





DM Queries From Shippers

Process Flows 13.0



Queries From Ops & Trading

Process Flows 18.0, 19.0




All Invoicing

Process Flows 8.0, 9.0, 12.0, 11.0






Information To IDN’s

Process Flows 20.0



Copyright National Grid Metering 11-01-08 NGM Daily Meter Reads UNC RG 0175.

Documents

end of gas day readings

hr slide

idns slide

hourly interruptible

ngm daily meter

shipper access

ndm daily reading filedaily

hourly interval consumptions