‘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