Asset renewal

1. Transmission Annual Planning Report 2014 Forum
2014 NSW Transmission Annual Planning
Report Forum
Asset renewal
Garrie Chubb
Manager Asset Performance
5 August 2014

2. 5 August 2014 Transmission Annual Planning Report 2014 Forum
Forum summary
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The 2014 NSW Transmission Annual Planning Report Forum was held on
5 August in Sydney.
This is an annual event that TransGrid holds to provide further detail on the
Transmission Annual Planning Report published at the end of June every
year.
More than 100 stakeholders gathered to hear speakers from TransGrid
and AEMO to discuss TransGrid’s future plans.
Representatives were from consumer advocacy groups, academics,
government, regulators, large energy users, infrastructure organisations
and energy providers.

3. 5 August 2014
Asset Management System
 Asset Management
 Full lifecycle from Conception through to Renewal/Dispose
 Transformation to ISO55001 is almost complete
 Pre-certification complete
 Certification November 2014
 Balance between Cost – Risk – Service
 Trade-offs must be made
 May not be confined just to TransGrid
Transmission Annual Planning Report 2014 Forum

4. 5 August 2014
Condition based replacement
 TransGrid replaces assets based on condition
 Each project has a detailed business case
 Condition assessment
 Condition-based risk quantification
 Option identification
 Option scoping
 Economic evaluation to select the most efficient feasible option
 Low-cost alternatives to replacement
 Changes to network configuration
 De-rating of equipment
Transmission Annual Planning Report 2014 Forum

5. 5 August 2014
Transmission lines
 Corrosion of steel towers in coastal areas
 Structure life extension
 Renewal of high value structures to defer
replacement
 Monitor lower value structures in preparation
for future replacement
 Wood pole replacements in inland areas
 Loss of strength due to age
 Termite infestations
 Two wood pole structure with single pole
structure
Transmission Annual Planning Report 2014 Forum

6. 5 August 2014
 A range of indicators are used to rank sites
 Each site is individually assessed
 Primary plant
 Civil works and structures
 Secondary systems
 Options developed
 Address each specific need
 Existing and future requirements
 Technology path for secondary systems
 Majority of renewals are targeted solutions
Substations
Transmission Annual Planning Report 2014 Forum

7. 5 August 2014
Secondary systems
 Multiple technologies
 Analogue (click clack), electronic, microprocessor
 Loss of product support
 Transition to next generation
 IEC61850
 Move from copper/specialist technician to fibre/IT focus
 Targeted renewals
 Solutions based on site need
 Optimise the full utility of modern Intelligent Electronic Devices
Transmission Annual Planning Report 2014 Forum

8. 5 August 2014
Further Information
 Extensive documentation set
 Asset Management System
 Asset Lifecycle
 Specific projects in the TAPR
All available on transgrid.com.au
Transmission Annual Planning Report 2014 Forum

9. 5 August 2014 Transmission Annual Planning Report 2014 Forum
Questions