‘South Australia’s electricity transmission specialist’
Land access
negotiations for
infrastructureObservations from the High Voltage
Transmission industry
About ElectraNet
> Principal Transmission Network Service Provider
(TNSP) for South Australia
> Owns and manages the SA regulated high-voltage
electricity transmission network, and operates in
Australia’s National Electricity Market (NEM)
> Specialist in transmission of electricity over long
distances and to remote areas
> Asset value ~$2.5bn
> Turnover >$350m pa
> Employs ~ 280
> >5,600 route kilometres of transmission line
> 28 route kilometres of underground cable
> 89 high-voltage substations
> Centralised monitoring, controlling and switching
facility 2
Role of Electricity Transmission
ElectraNet’s transmission network is the
‘backbone’ of South Australia’s power
system:
> Connecting power stations to major
load centres
> Connecting regions of the National
Electricity Market via state
interconnectors
> Facilitating competition in the
energy market
> Reducing the amount of spare
generation capacity that must be
provided to ensure reliable supply
> Transmission costs account for less
than 10% of the end user electricity
bill
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ElectraNet’s Owners
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State Grid
International
Development
Asia and
Australia
46.56%
> State Grid International Development Asia and Australia is a
subsidiary company of State Grid International Development Ltd
which also has power utility investments in the Philippines, Portugal
and Brazil.
> State Grid Corporation of China, the ultimate parent company,
operates the power network covering 88% of China and is the largest
utility company in the world.
YTL Power
Investments33.50%
> YTL Power Investments is an investment company of YTL Power
International Berhad, headquartered in Kuala Lumpur and listed on
Bursa Malaysia.
> International multi-utility provider and long-term investor in utility
infrastructure and regulated assets.
Hastings
Funds
Management
Ltd
19.94%
> Hastings Funds Management Ltd as responsible entity of the
Hastings Utility Trust is a wholly-owned subsidiary of Westpac
Banking Group.
> Specialist manager of infrastructure, private equity and high yield
investments.
Transmission Lines
> Transmission lines in South Australia operate at voltages of 275,000, 132,000 and
66,000 Volts (275 kV, 132 kV and 66 kV)
> Transmission lines are the electricity network equivalent of highways and freeways, which
are supported by steel lattice towers and large steel and concrete poles
> Transmission lines are supported by steel lattice towers and masts, and large steel and
concrete poles
> Distribution lines (poles and wires) owned and operated by ElectraNet’s direct-connect
customer SA Power Networks, are the network equivalent of arterial roads and local
streets, bringing power directly to the meter boxes of consumers
> Stobie poles are used extensively as support structures for ElectraNet’s 132 kV network,
and the double Stobie pole (pie structure) has been used for some 275 kV transmission
lines
> Stobie poles have an unique design using steel channel and concrete; they are free
standing eliminating the need for guying for termination and deviation locations; are
designed for high strength with a small footprint; are cost effective – and have a long-life,
allowing the pole and footing to be re-used with minimal maintenance
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ElectraNet’s Transmission Network…
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> Facilitates lower electricity prices by promoting competition between generators in South
Australia and interstate
> Is a critical part of the supply chain that delivers reliable electricity transmission supply to
direct-connect customers, SA Power Networks and to the National Electricity Market
Transmission
Connections
Generator/ Load Connected
Hallet Power Station 2001
Amcor Bottling Plant 2002
Cathedral Rocks Wind Farm 2005
Lake Bonney Stage 1 2005
Mount Millar Wind Farm 2005
Wattle Point Wind Farm 2005
Middleback 2006
Brown Hill Range Wind Farm (Hallett 1)
2007
Snowtown Wind Farm 2007
Hallett Hill Wind Farm (Hallett 2) 2008
Lake Bonney Stage 2 2008
Clements Gap Wind Farm 2009
Quarantine Power Station Expansion Stage 5
2009
Lake Bonney Stage 3 2010
North Brown Hill Wind Farm (Hallett 4)
2010
Port Lincoln Turbine No 3 2010
Waterloo Wind Farm 2010
Kanmantoo Mine 2011
The Bluff Wind Farm (Hallett 5) 2011
Snowtown Wind Farm Stage 2 20137
ElectraNet has successfully
negotiated twenty network
connections since 2001:
> 3x conventional generators
> 3x loads
> 14x wind farms
Wind Farm Projects Summary
Waterloo (111MW)
Clements Gap (57MW)
Snowtown S1 (99MW)
Starfish Hill (35MW)
Wattle Point (91MW)
Lake Bonney S1 (81MW)
Lake Bonney S2 (159MW)
Lake Bonney S3 (39MW)
Canunda (46MW)
Cathedral Rocks (66 MW)
Mount Millar (70MW)
Hallett S1 Brown Hill (95MW)
Hallett S4 North Brown Hill (132MW)
Hallett S2 Hallett Hill (71MW)
Hallett S5 The Bluff (53MW)
Willogoleche (70-110MW)
Hallett S3 Mt Bryan (80-100MW)
Robertstown (100MW)
Stony Gap (123MW)
Snowtown S2 (270MW)
Allendale (70MW)
Mount Hill (80MW)
Barn Hill (124-186MW)
Lincoln Gap (177MW)
Carmody’s Hill (140MW)
Robe (600MW)
Registered/Operating
Under Construction
Future Pipeline
Legend
Woakwine (450-600MW)
Keyneton (100MW)
Kulpara (109MW)
CERES (500-600MW)
Hornsdale (270-315MW)
Lesson 1 - People
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Lesson 2 – It’s Personal
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Lesson 3 – Listen
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Lesson 4 – The Right Team
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Lesson 5 - prepare
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‘South Australia’s electricity transmission specialist’
Questions
Michael Bails