System Security Forecast

The System Security Forecast (SSF) is produced every two years and revised every six months if required.

Revisions to the SSF are required if changes to the power system materially affect the SSF. The  SSF Guidelines [ pdf 666.68 KB ] document determines the purpose and principles of the SSF.

Our website has a dedicated page outlining thermal generation decommissioning analysis, including power system operation and security of supply. See Impact of thermal generator decommissioning.

2016

The 2016 System Security Forecast based on new information known by the System Operator.

Part A Date
Executive Summary [ pdf 756.35 KB ] Dec 2016
Part B Date
Grid Configuration and Operations [ pdf 1.21 MB ] Dec 2016
Part C Date
Study Approach and Assumptions [ pdf 676.78 KB ] Dec 2016
Part D Date
Security Analysis North Island Grid Backbone [ pdf 1.3 MB ] Dec 2016
Security Analysis South Island Grid Backbone [ pdf 1.34 MB ] Dec 2016
Security Analysis Upper North Island [ pdf 709.16 KB ] Dec 2016
Security Analysis GZ01 Northland [ pdf 979.89 KB ] Dec 2016
Security Analysis GZ02 Auckland [ pdf 853.5 KB ] Dec 2016
Security Analysis GZ03 Hamilton [ pdf 1.18 MB ] Dec 2016
Security Analysis GZ04 Edgecumbe [ pdf 1.59 MB ] Dec 2016
Security Analysis GZ05 Hawkes Bay [ pdf 1.17 MB ] Dec 2016
Security Analysis GZ06 Taranaki [ pdf 1.23 MB ] Dec 2016
Security Analysis GZ07 Bunnythorpe [ pdf 2.06 MB ] Dec 2016
Security Analysis GZ08 Wellington [ pdf 1.85 MB ] Dec 2016
Security Analysis Upper South Island [ pdf 724.3 KB ] Dec 2016
Security Analysis GZ09 Nelson Marlborough [ pdf 1007.53 KB ] Dec 2016
Security Analysis GZ 10 and 11 Christchurch and Canterbury [ pdf 1.05 MB ] Dec 2016
Security Analysis GZ12 West Coast [ pdf 1.2 MB ] Dec 2016
Security Analysis GZ13 Otago [ pdf 1.59 MB ] Dec 2016
Security Analysis GZ14 Southland [ pdf 1.75 MB ] Dec 2016
Part E Date
Frequency Principal Performance Obligations [ pdf 487.93 KB ] Dec 2016
Part F Date
Resources (Maps, Site Codes, SLDs etc) [ pdf 1.42 MB ] Dec 2016

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