Daily Meter Reading

1
Daily Meter Reading

• Overview

2
New Daily Metered Site

• Request from Gas Shipper for Installation
• Quotation Provided
• On quotation acceptance
• New MPR Meter Details manually added using data
  from Connection/ Disconnection Store
• Datalogger information added to UK-Link so DM
  nomination can be processed
• Datalogger details updated when installation is
  completed

3
Daily Read Process

• Collect a reading for the start / end of each gas
  day (600)
• Carry out initial tolerance validation on
  readings received.
• Deliver reading to UK-Link (Xoserve)
• UK-Link validates and delivers DM readings prior
  to 11am each day via the IX.
• Sweep up files are provided for readings
  collected after the deadline and these are loaded
  into UK-Link.
• Where readings arent collected estimates are
  provided by UK-Link based on D-7 consumption.
• DM readings/ consumptions are then collected
  every 4 hours during the gas day

4
Daily Read Delivery
Daily Read file - Xoserve Deliver 6am readings
by 830am for onward deliver to shippers by 11am
(Liable Process) Deliver daily sweep up files of
late readings by 4.30pm
Unique Site File - Xoserve Deliver 6am readings
for Unique Sites by 10am

• Demand Forecasting - Xoserve
• Deliver DM, Unique and NDM firm readings,
  validated by specified routines on D14 following
  collection
• Biannually increase delivery to meet issued
  schedule

• National Grid Ops Trading
• Deliver DM Firm / Interruptible consumption data,
  separately, every 4 hours, within 1 hour after
  collection
• Deliver 7am DM Firm/ Interruptible consumption
  data, separately at 8am
• Deliver DM Firm/ Interruptible consumption data,
  separately, for the previous 24 hours by 10am
  each day

Unique Site Readings to Gas Shippers Deliver 6am
reading, by fax, to gas shippers prior to 11am
(Liable Process)
Bulletin Board Service Provider Gas Shippers with
a facility to access hourly data at four hourly
intervals of each gas day
5
DM Annual Check Read

• Arrange a DM Check Read / Site visit every 12
  months
• Validates the accuracy of the datalogger
• Input the Check Read / Resync site visit on
  UK-Link
• Instigates DM Reconciliation
• Each resync investigated to account for drift.
  Drift then manually input on to UK-Link
• UK-Link pro-rates drift across reconciliation
  period

6
Daily Read Errors

• Gas Volume is determined as recorded incorrectly
  by the Datalogging Equipment.
• Up to D5 the Shipper can request the consumption
  is adjusted.
• Queries are also identified by Operations and
  Trading and the DM Team refer these to the
  shipper for investigation and agreement of a
  consumption adjustment.

7
Daily Read Charges

• Daily Meter Reading Charge
• Charge for the collection / delivery of Daily
  meter Readings to gas shippers
• Datalogger Rental Charge
• Rental charge covering the maintenance of the
  datalogger
• Daily charges specified in the National Grid
  Metering Charges Document
• Invoiced created monthly of relevant charges for
  each shipper by Network.
• Passed to Xoserve for issue to Gas Shippers

8
DM Liabilities

• Deliver 97.5 of readings to Gas Shippers on a
  monthly basis. Readings must be delivered by 11am
  on D1of each Gas day during the month.
• Where readings are not delivered for 4
  consecutive days, on the following day and every
  subsequant day pay a liability
• NGM monitor and calculate the DM read performance
  for these standards and provide to Xoserve on a
  monthly basis.