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.
The 2016 System Security Forecast based on new information known by the System Operator.
|Executive Summary [ pdf 756.35 KB ]||Dec 2016|
|Grid Configuration and Operations [ pdf 1.21 MB ]||Dec 2016|
|Study Approach and Assumptions [ pdf 676.78 KB ]||Dec 2016|
|Frequency Principal Performance Obligations [ pdf 487.93 KB ]||Dec 2016|
|Resources (Maps, Site Codes, SLDs etc) [ pdf 1.42 MB ]||Dec 2016|