Exercise Prelude

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Exercise Prelude

• Paul Youngman

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Exercise Prelude

• Exercise Prelude took place on the 5th and 6th of
  November with the final report being published by
  the HSE on their website last month.
• Overview of results
• What was within scope for Prelude
• Observations
• Key indicators
• Key responses
• Areas for further work
• Transporter focussed actions
• Shipper focussed actions

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Exercise Prelude

• Scope of Exercise Prelude
• Prelude was focused on Network Emergency
  Management Team actions and downstream load
  reduction
• Testing of Primary and Secondary Transporters
  and new control rooms
• Prelude was run to a script that went through
  each stage of a Gas Deficit Emergency
• No development of strategy or time available for
  consideration of the what ifs
• Upstream involvement and actions were limited to
  communication tests / exchange of forms
• Wider interactions with DECC and external
  communications were also out of scope

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Exercise Prelude General Observations

• New processes introduced for Moffat
  Interconnector worked well
• Communications from NEMT to the Distribution
  Network Control rooms was effective
• Communications and processes need aligning to
  reflect changing industry structure
• All transporters reported that the quality of
  site contact details was poor
• Improvement in the number of sites that when
  contacted would load shed
• Improvement by sites in understanding what is
  required of them
• Improvements by Transporters in call handling and
  the escalation of issues

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Firm load shedding - Overall
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Firm load shedding - Overall

• Improvement compared to exercise Opus in the
  percentage of SOQ Load Shed
• Performance of the top 4 LDZ was 75 of the total
  SOQ contacted being load shed
• Action on all transporters to adopt the best
  practice of the best performing networks

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Firm load shedding contact details
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Firm load shedding contact details

• Contact details incorrect
• Consistently high 32.89 . Every third phone call
  made was to an incorrect number.
• Improvement in action taken where contact is
  made
• Decrease in could not turn off and increase in
  Successful - can turn off

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Exercise Prelude - Observations

• Shippers were frustrated by fax communications
• Duplicate faxes being sent by transporter control
  rooms during the exercise
• SC2004 fault resulted in restoration notices
  being repeatedly sent after the end of the
  exercise
• Some shippers unaware of new control room
  structure / effect on emergency communications
  and processes

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Exercise Prelude - Actions

• Working with Transporters to improve
• Communication with Shippers and Supplementary
  Transporters detailing the changes to
  distribution network control rooms
• Maintaining a commitment to Best Practice and
  adoption of it.
• Establishing a better understanding of isolation
  and the restoration process

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Exercise Prelude - Actions

• Working with Shippers to improve
• Provision of emergency contact details
• Methods of communication and information
  provision
• Awareness of any process changes
• Understanding of the types and scopes of a
  Network Gas Supply Emergency
• Clear understanding of the commercial processes

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Summary of Section Q Emergency Contact
requirements.
In addition to User contact details the User is
responsible for providing the following site
emergency contacts. (TPD Q 2.3 and 2.4)
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Contact Details

• Responsibility of Users to update Emergency
  Contacts in line with the UNC and their contract
  with consumers
• Key Features
• Fax and 24 hour where applicable
• Relevant individual at site
• Has authority to act in accordance with
  instructions from Transporter
• Alternate contacts where appropriate
• Integration with site and organisational plans
• Obligation for all to co-operate under GSMR to
  protect public safety

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Report and contact details

• The full results of Exercise Prelude are now
  available from the HSE website
• http//www.hse.gov.uk/gas/supply/information.htm
• For further information please contact the
  emergency planning team
• gasops.emergencyplanning_at_uk.ngrid.com
• Paul Youngman Emergency Planning Manager (GNCC)
  Tel [phone]