Critical Contingency Events
Notices published by the Critical Contingency Operator (CCO) during a critical contingency event are available on the CCO’s website click here
Following the termination of a critical contingency, the CCO is required to publish the following reports:
- Incident Report (regulation 64), which outlines the cause and duration of the event, actions taken by the CCO and transmission system owner, the level of general compliance by retailers and consumers with directions issued during the event, and another other matters the CCO considers appropriate. The Incident Report must be issued as soon as reasonably practicable, but no later than five business days after the critical contingency is terminated.
- Performance Report (regulation 65), which assesses the effectiveness of the critical contingency arrangements during the event, and identifies areas where those arrangements could be improved. This report must be issued no later than 20 business days following the termination of the critical contingency, or as otherwise agreed between the CCO and Gas Industry Co as the industry body.
In the case of a non-regional critical contingency, regulations 67-81 provide for a process for setting contingency imbalances.
Critical Contingency Management FAQs
Answers to some common questions about critical contingency events and gas user obligations.
3 March 2012 - Pohokura Production Station Outage
A critical contingency incident on the gas transmission system caused by an unplanned outage at the Pohokura Poduction station was declared at 12.48pm on Saturday 3 March 2012, and terminated at 11.39pm on the same day. The event resulted in a requirement for reduced consumption by large gas users. The Critical Contingency Operator (CCO) has issued an Incident Report and Performance Report. Documents and other information relating to this event are available at the CCO Information Exchange at www.oatis.co.nz
Under regulations 67 to 72, Gas Industry Co is required to engage an industry expert to determine a critical contingency price that will be applied to contingency imbalances sustained by interconnected parties and shippers during the event. Tim Denne of Covec was engaged for this work and his final price report is available below.
25 October 2011 - Maui Pipeline Outage
A critical contingency incident on the gas transmission system caused by a gas escape from the Maui pipeline was declared at 1.25am on 25 October 2011, and terminated at midday on 30- October 2011. Documents and communications relating to this event are available below.
Post Maui Pipeline Outage Review - Update
Work in capturing learnings from the five-day Maui outage in October last year is well advanced.
CCO Reports
Incident Report Performance Report Feedback Form
Compliance
Media Advisories
25 Oct – Gas Industry Co Media Release: Gas Curtailment ordered following gas pipeline leak
26 Oct – Vector Media Advisory: Chain of Events
26 Oct – Vector Media Advisory: 1.00pm Update
26 Oct – Vector Media Advisory: 7.30pm Update
27 Oct – Vector Media Advisory: 1.00pm Update
28 Oct – Vector Media Advisory: 9.30am Update
28 Oct – Vector: Pipe Repair Photo
28 Oct – Vector Media Advisory: 5.00pm Update
29 Oct – Vector Media Advisory: 10.00am Update
29 Oct – Vector Media Advisory: 2.00pm Update
30 Oct – Vector Media Advisory: 7.00am Update
3 Nov - Gas Industry Co Media Release: Maui Pipeline Outage Review
13 July 2010
A critical contingency was declared at 19:36 on 13 July 2010 and was terminated at 22:34 on 13 July 2010.
Under the Gas Governance (Critical Contingency Management) Regulations 2008, a number of reports have been published in respect of this event:
- Critical Contingency Incident Report, prepared by the critical contingency operator under regulation 64. This report outlines the events that occurred that day and the actions taken by the critical contingency operator and the transmission system owner.
- Critical Contingency Operator Performance Report, prepared under regulation 65. The purpose of this report is to assess the effectiveness of the critical contingency arrangements during the event and identify areas where those arrangements could be improved.
- Under regulations 67 to 72, Gas Industry Co is required to engage an industry expert to determine a critical contingency price that will be applied to contingency imbalances sustained by interconnected parties and shippers on a critical contingency day. Dr John Small of Covec has been engaged for this work.