Territory Stories

Annual Report 2014/2015 Utilities Commission

Details:

Title

Annual Report 2014/2015 Utilities Commission

Other title

Tabled paper 1571

Collection

Tabled Papers for 12th Assembly 2012 - 2016; Tabled Papers; ParliamentNT

Date

2015-11-19

Description

Deemed

Notes

Made available by the Legislative Assembly of the Northern Territory under Standing Order 240. Where copyright subsists with a third party it remains with the original owner and permission may be required to reuse the material.

Language

English

Subject

Tabled papers

Place of publication

Darwin

File type

application/pdf

Use

Copyright

Copyright owner

See publication

License

https://www.legislation.gov.au/Details/C2019C01590

Parent handle

https://hdl.handle.net/10070/273186

Citation address

https://hdl.handle.net/10070/799701

Page content

38 Item Audit finding Comment Power system security Responsibility for maintaining power system security. Not compliant At times, do not meet all requirements of Secure System Guidelines. Power system security Assess the availability and adequacy of contingency capacity reserves and reactive power reserves. Not compliant No formal assessment and not escalating these problems to Power and Water Networks. Power system security Procure adequate black start capacity. Compliant Power system security develop a Black System Restart Procedure. Compliant Had the audit been performed prior to the System Black incident of March 2014, it is likely that Power and Water would have been found not compliant. Power system security coordinate and direct any rotation of widespread interruption of demand. Part compliant No procedure. Power system Security- investigate and review all major power system operational incidents and to initiate action plans. Part compliant Late submission of incident reports. Lack of tracking of action plan outcomes. Had the audit been performed prior to March 2014, it is likely that Power and Water would have been found not compliant. Ensure that the Network Operator satisfactorily interacts with the Power System Controller. Compliant Power system stability handling single contingency events. Not compliant System Dynamic models in developing stage. Hence, a full range of stability studies have not been done. Maintenance of a secure system. Part compliant System does not always meet all requirements specified in the system secure guidelines. However, in a contingency event, controllers take action to minimise safety risks. Maintaining the frequency on islanded regions. Compliant Designating black start power stations. Compliant Approval of System Black Procedures. Not compliant No formal approval given. Although there were a number of not-compliant and part-compliant findings, overall the Commission found an adequate level of compliance with the system control licence. The Commission also noted that there were many areas of System Controls work requiring improvements to achieve acceptable practice, and that while each of these issues is small, the number of issues and their combined effect could impact on the security of the network through a lack of ability to respond correctly to an operational incident. Generation The generation licence held by Power and Water was transferred to Territory Generation on 1 July 2014 in relation to the urban and minor commercial power stations, following the


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