Exercise Prelude Paul Youngman

2 Exercise Prelude Exercise Prelude took place on the 5 th and 6 th 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

3 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 if’s”  Upstream involvement and actions were limited to communication tests / exchange of forms  Wider interactions with DECC and external communications were also out of scope

4 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

5 Firm load shedding - Overall

6  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

7 Firm load shedding – contact details

8  Contact details incorrect  Consistently high %. 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”

9 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

10 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

11 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

12 Summary of Section Q Emergency Contact requirements. Large Firm Interruptible >25000 therms >50000 therms Site Manned 24 Hours 24 hour Emergency Contact and Job Title Emergency Contact Telephone Number Fax 11 Site Not Manned 24 Hours 24 hour Emergency Contact and Job Title Emergency Contact Telephone Number Fax 11 In addition to User contact details the User is responsible for providing the following site emergency contacts. (TPD Q 2.3 and 2.4)

13 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

14 Report and contact details The full results of Exercise Prelude are now available from the HSE website For further information please contact the emergency planning team Paul Youngman – Emergency Planning Manager (GNCC) Tel: