MANUFACTURING PROCESS-II UNIT-1 THEORY OF METAL CUTTING
Powering Sydney's Future Forum June 2014 - The Situation - Neil Gordon
1. Planning Inner Sydney’s Electricity Future Forum 1
Thursday, 19 June 2014
Forum – 19 June 2014
2. Planning Inner Sydney’s Electricity Future Forum 2
Thursday, 19 June 2014
Forum Summary
The form held on the 19 June, brought together a range of organisations and experts to explore
electricity supply in inner Sydney and consider some possible initiatives as part of developing a
solution.
Almost 100 representatives and experts gathered to hear speakers from TransGrid and Ausgrid as
well as experts from CSIRO and City of Sydney.
There were representatives from consumer advocacy groups, academics, government
representatives, regulators, large energy users, infrastructure organisations and energy providers.
Among the delegates there was a concerted call for an overhaul of regulatory framework to provide
incentives to electricity networks, for non-network alternatives.
3. Planning Inner Sydney’s Electricity Future Forum 3
Thursday, 19 June 2014
The situation
Neil Gordon
Manager Asset & Network Planning, Ausgrid
4. Planning Inner Sydney’s Electricity Future Forum 4
Thursday, 19 June 2014
The Sydney Inner
Metropolitan Area
Sydney basin east
of Parramatta
Boundaries aligned
with local
government areas
5. Planning Inner Sydney’s Electricity Future Forum 5
Thursday, 19 June 2014
The Sydney Inner
Metropolitan Area
High load areas
• CBD
• Inner suburbs
• transport corridors
Key customers
• Sydney CBD
• Sydney Airport
• Port Botany
• Major rail and road
links.
6. Planning Inner Sydney’s Electricity Future Forum 6
Thursday, 19 June 2014
Electricity Supply
to Sydney
TransGrid’s 330kV
transmission system
• Connects Sydney to the
interstate grid
Five bulk supply points
• Haymarket
• Beaconsfield
• Sydney South (Picnic Point)
• Sydney North (Dural)
• Sydney East (Belrose)
• New supply point at Chullora
7. Planning Inner Sydney’s Electricity Future Forum 7
Thursday, 19 June 2014
Electricity Supply
to Sydney
Ausgrid’s cable network
• Delivers supply to suburbs
• 118 lower level substations
• Lower voltage, lower
capacity cables
• Complex mesh of cables
• Many from the1960’s & 70’s
8. Planning Inner Sydney’s Electricity Future Forum 8
Thursday, 19 June 2014
Electricity Supply
to Sydney
50 key Ausgrid feeders
• Back up TransGrid
transmission cables
• Supply maintained if:
• one major TransGrid cable
out of service
• plus one Ausgrid asset
9. Planning Inner Sydney’s Electricity Future Forum 9
Thursday, 19 June 2014
Key Issues
Thirteen key cables
• Reaching end of life
• High maintenance costs
• Increasing risk of failure
• Need to consider
retirement
10. Planning Inner Sydney’s Electricity Future Forum 10
Thursday, 19 June 2014
Key Issues
Thirteen key cables
• Reaching end of life
• High maintenance costs
• Increasing risk of failure
• Need to consider
retirement
One key 330 kV
cable
• Operating below design
capacity
• Remediation planned
11. Planning Inner Sydney’s Electricity Future Forum 11
Thursday, 19 June 2014
Issues with aged cables
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
Age (years)
Failurerate
Typical “bathtub” failure profile
17. Planning Inner Sydney’s Electricity Future Forum 17
Thursday, 19 June 2014
Better options?
• The issues are significant
• We need to consider
solutions now
• The default approach
would mean:
• Five years of planning and
ten years of installation
• Disruption to many streets
• Expensive
Could we do better?
Editor's Notes
Greg Garvin
- Very brief welcome and intro to forum
-We want to share a clear understanding of the issues facing the electricity supply for inner Sydney. We also want people to have an opportunity to provide input as we consider a range of initiatives to meet the area’s future electricity needs.
- Comment on Sun Herald news article about forum. Some inaccuracies which will hopefully be clarified throughout this forum.
Summary of Neil’s slides:
Heat map showing electricity use in Sydney basin
Describe and show Sydney’s complex network fed by transmission supply
Describe and show age profile of older cables, explaining increased risks associated with the continued operation of these cables
Introduce cable retirement plans and the possibility to replace each cable like for like (inefficient)
Introduce energy forecast
