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Mod 124. Steve Nunnington. History of the 10 day rule. 10 day rule covered in M 3.3.4 System capacity of 400,000 meter reads per day as set out in UK Link manual. Problems in 2003. Meter read submissions start to increase rapidly.

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mod 124

Mod 124

Steve Nunnington

history of the 10 day rule
History of the 10 day rule
  • 10 day rule covered in M 3.3.4
  • System capacity of 400,000 meter reads per day as set out in UK Link manual.
  • Problems in 2003.
    • Meter read submissions start to increase rapidly.
    • 3 days in August saw meter read submissions exceed 1 million mark.
    • Caused massive problems as batch schedules overrun.
    • Initially functionality introduced to reject files above the 400,000 figure.
    • Eventually introduced changes to rollover meter read files.
  • M 3.3.4 wasn’t used prior to CTP Mods
    • New Mods to introduce PP opening read estimates and AMR reads
    • CTP Mods to introduced OSER and POS reads
    • Increases potential number of reads which could be submitted
history of m 3 3 4
History of M 3.3.4
  • Mod 693 introduced to restrict amount of meter reads which could be submitted per MRF.
  • It was decided to invoke M 3.3.4 to protect UK Link and was communicated to the Workstream.
  • Main issue is stockpiling of reads.
  • Shipper issues identified following delivery of CTP Mods and subsequent implementation of 10 day rule.
  • Shippers had historical meter reading backlogs.
  • xoserve relaxed M 3.3.4 to 99 days for period of 3 months
    • March to June 2006.
    • Involved agreed schedule of submission
    • Rollover of meter read files daily with weekend catch up.
    • Major issues encountered on UK Link
    • Not sustainable in the long term
  • In June 2006 M 3.3.4 re-instated.
slide4

Benefits of Mod 124

  • Allows xoserve to receive more meter reads.
  • Improves AQ values.
  • Allows more reconciliation to take place.
  • Helps with demand attribution.
  • Makes Energy balancing more robust.
  • Has benefits for shippers in terms of validation timescales.
the proposal
The proposal
  • xoserve systems cannot currently support a window of 20 days.
    • Allows reads to be stockpiled and the 400,000 limit exceeded.
    • Examples before the Mods where in a single month meter read submissions exceeded 1 million per day on 3 occasions.
    • Potentially could mean a perpetual rollover with no catch up.
    • May affect Opening Read window due to rollover. An xoserve estimate could be issued when an actual read has been submitted.
slide6

The Way Forward

  • xoserve systems can handle a window of 15 days and would propose this as a transitional measure.
  • UK Link refresh will mean improved processing speeds.
  • Potential to increase the 400,000 maximum.
  • Move to 20 days post refresh. Initially on a trial basis.
  • UK Link Refresh planned for November 2007.