Historical Critical Contingency Events & Notices

This page is used to publish information including notices, updates and reports relating to historical critical contingency events and exercises. For information relating to a current Critical Contingency Event refer to the Current CC Events page

23/05/2017 - System Imbalance Event

On 23 May, the CCO declared a Critical Contingency following a breach of the Kapuni​​ Gas Treatment Plant pressure threshold.  Following consultation with stakeholders, the Final Performance Report for this event is available below.

Date

Time

Notice ID

Notice Type

Issued To

18/07/2017



Final Critical Contingency Performance Report

Stakeholders

30/05/2017



Critical Contingency Incident Report

Stakeholders  

23/05/2017

18:20

CC-0041

Critical Contingency Termination​

TSO & Stakeholders

23/05/2017

15:20

CC-0040

Critical Contingency Status Update #2

Stakeholders  

23/05/2017

13:10

CC-0039

Critical Contingency Status Update

Stakeholders  

23/05/2017

11:10

CC-0038

Critical Contingency Declaration

TSO & Stakeholders  


11/04/2017 - Exercise Interface

The CCO conducted its annual industry exercise - "Exercise Interface" on the 11/04/2017.
The exercise started at 9:00am and ran through until 4:00pm. The exercise simulated accidental damage to the First Gas Ltd Maui pipeline north of Pirongia resulting in an uncontrolled gas escape.  This resulted in the transmission pipeline system north of Pirongia being isolated for 24 hours while repairs were carried out.  In order to conserve linepack and pressure in the system, the CCO issued curtailment instructions affecting consumers in Bands 1 to 6.   

Date

Time

Notice ID

Notice Type

Issued To

​11/05/2017



​CCO Annual Exercise Report

Stakeholders

​11/04/2017

​3:30pm

CC-0037

Termination Notice

TSO & Stakeholders

​11/04/2017

​2:30pm

CC-0036

Notice to Restore Curtailed Demand

TSO

​11/04/2017

​12:45pm

CC-0035

Status Update #2

Stakeholders

​11/04/2017

​11:30am

CC-0034

Notice to Retailers For Media Appeals

Retailers

​11/04/2017

​11:00am

CC-0033

Revised Demand Curtailment

TSO

​11/04/2017

​10:30am

CC-0032

Status Update #1

Stakeholders

​11/04/2017

​10:00am

CC-0031

Demand Curtailment

TSO

11/04/2017

​9:30am

CC-0030

Declaration Notice

TSO & Stakeholders

09/02/2017



CCO Annual Exercise - Participants Brief

TSO & Stakeholders


22/06/2016 - Exercise Kakama

Date

Time

Notice ID

Notice Type                               

Issued To:

20/07/2016



CCO Annual Exercise Report - Exercise Kakama

Stakeholders            

22/06/2016 

15:10        

CC-0029 

Termination of Critical Contingency

First Gas TSO & Stakeholders

22/06/2016

14:00

CC-0028

Direction to Restore Demand

First Gas TSO

22/06/2016

12:30

CC-0027

Status Update

Public & Stakeholders

22/06/2016

10:15

CC-0026

Direction to Curtail Demand

First Gas TSO

22/06/2016

09:30

CC-0025

Declaration of Critical Contingency

First Gas TSO & Stakeholders




CCO Annual Exercise Participants Brief - Exercise Kakama

Stakeholders

 

24/05/2016 - Unplanned Production Station Outage

Date

Time

Notice ID

Notice Type                               

Issued To:

12/08/2016

10:00


CCO Performance Report

First Gas TSO & Stakeholders

31/05/2016

16:30


CCO Incident Report

TSOs & Stakeholders

24/05/2016

23:00

CC-0024

Critical Contingency Termination

TSOs, Stakeholders & Interested Parties

24/05/2016

19:30

CC-0023

Critical Contingency Status Update

Stakeholders

24/05/2016

18:30

CC-0022

Critical Contingency Declaration

TSOs, Stakeholders & Interested Parties

  

24/06/2015 - Exercise Validation

Date

Time

Notice ID

Notice Type                               

Issued To:

22/07/2015



CCO Annual Exercise Report

Stakeholders

01/07/2015



CCO Annual Exercise Retailers Self Assessment Form

Retailers

24/06/2015

14:45

CC-0021

CC Termination

Stakeholders

24/06/2015

14:25

CC-0020

CC Restore Demand

Vector TSO

24/06/2015

12:45

CC-0019

CC Status Update

Public

24/06/2015

12:00

CC-0018

CC Media Appeals

Retailers

24/06/2015

11:45

CC-0017

CC Revised Curtailment

Vector TSO

24/06/2015

11:00

CC-0016

CC Curtailment

Vector TSO

24/06/2015

08:58

CC-0015

CC Declaration

Stakeholders

25/05/2015



CCO Annual Exercise Participants Brief

Exercise Participants