Transcript Main Heading - City of Playford

Munno Para Substation and the
role of ElectraNet
Accessing Mining and Major Projects 2012
May 2012
www.electranet.com.au
Slide 1
Presentation Outline
 Industry Structure and the Role of ElectraNet
 New Generation and Network Development
 Munno Para
ElectraNet
Slide 2
Industry Structure
and Overview
www.electranet.com.au
Slide 3
About ElectraNet
 Private Transmission Infrastructure
Company
 Principal Transmission Network
Service Provider (TNSP) in SA
 ElectraNet owns and manages the SA
transmission system in the National
Electricity Market (NEM)
 Comprises about 6,000 circuit
kilometres of transmission line
 88 substations
 Asset value around $1.9bn
 Turnover >$300m pa
 Employs over 270 staff
ElectraNet
Slide 4
National Electricity Market (NEM) Grid
National Electricity Market is
made up of five regions joined
by transmission interconnectors
Qld
8,891 MW
NT
QLD
SA
3,413 MW
WA
Total Demand: 38,842 MW
1078 MW
400 MW
NSW
14,289 MW
SA
NSW
1000 MW
680 MW
677 MW
Existing Interconnector
(export direction)
3000MW
SNOWY
1900 MW
1100 MW
VIC
600 MW
450 MW
Vic
10,459 MW
TAS
Tas
1,790 MW
ElectraNet
Slide 5
Role of Transmission in the Market
 Build, operate and maintain the electricity transmission ‘highways’ that
transport electricity from generators and interconnectors to distribution
networks and large direct connect industrial customers.
 Supply competitive electricity transmission services and high levels of
safety and reliability for the benefit of customers.
Competitive
Regulated Monopolies
Competitive
ElectraNet
Slide 6
Network Service Provider (NSP)
 Network Companies are common carriers of generators’
and/or retailers’ energy on a non-discriminatory basis, but
are NOT responsible for:
– the generation of electricity
– the trading or setting of Spot Price for electricity
– the operation of the National Electricity Market
 Networks provide:
– least cost transport for generators
– reliable and secure power delivery for customers
– access to competitive market for participants
ElectraNet
Slide 7
South Australian Energy Consumption by Source
Trends are:
•
Coal from 35% to ≈
30% - slow decline but
relatively constant
•
Gas from high of 55%
to 45% - ramped up to
replace interconnector
then declined
•
Wind from 5% to
>20% - growing source,
SA Govt target is 33% in
2010
•
Net Interconnector
from high of 18% to
low of 0% to 5%
ElectraNet
Slide 8
South Australian Emission Levels
South
Australian
electricity
emissions are
continuing to
trend down
and are nearly
20% down on
2004/05 peak
ElectraNet
Slide 9
Role of ElectraNet
www.electranet.com.au
Slide 10
The Roles and Expectations on Transmission
 Fundamental role – reliable delivery of bulk
electricity supply to major load centres
 The vast majority of ElectraNet’s five-year investment
program is reliability driven: i.e. by the need to “keep
the lights on” in the face of ever increasing demand
 Investment is only just keeping pace with load growth
– just-in-time is the credo
 The reliability impacts of transmission failures can be
severe (e.g. US and London blackouts)
ElectraNet
Slide 11
The Roles and Expectations on Transmission
 Additional role – delivering potentially lower prices by
facilitating competition between generators both intrastate and inter-state
 Competition can be lessened and consumers can be
worse off if there is inadequate transmission transfer
capacity
 Unlike for reliability, outcomes to date have been suboptimal – there have been high wholesale price events focus has been more on developing a National Electricity
Market than a National Electricity Grid – this is changing
ElectraNet
Slide 12
Investment and Reliability of Supply
“Figures around recent and projected price
rises are regularly cited in media reports
What is less frequently mentioned are the
costs to consumers and the costs to
business from a lack of reliability because
of underinvestment.
“Energy networks play a
crucial role in bringing
reliable energy to
households and businesses
– they are the foundation of
our modern economy”
Lack of reliability in our electricity supply
would threaten jobs, threaten business and
undermine our economic prosperity.
This is why it is so important to get the
balance right, why it is vital that we don’t
stand in the way of required investment…”
Source: Martin Fergusson speaking at ENA Smart Networks Summit, 18 May 2011
ElectraNet
13
New Generation and Network
Development
www.electranet.com.au
Slide 14
Renewable and Emergent Technology in SA
An optimistic view of timelines …
2010
2012
2012
2014
2014
2016
2016
2018
2018
2020
2020
2022
2022
2024
2024
2026
2026
2028
2028
2030
Coal to Liquids
Geothermal
Wind
Wave
Solar
Feasibility Studies
Demonstration
Construction
Pilot
Commercially
available
Grid connection
Wind is presently the only mature technology;
however, Solar thermal is improving and all should
reach ‘Grid Parity’ by ≈2016
ElectraNet
Slide 15
Wind Generation Connection Outlook

South Australia has about half of the
nation’s installed wind capacity

~1,200 MW operational and under
construction

20% of annual energy requirements
are now met by wind

Significant potential for further
development (SA Govt target = 33%
by 2020)

Capacity for total wind connections of
approx. 2,300 MW

Beyond this requires significant
transmission investment; e.g. Eyre
Peninsula
ElectraNet
16
Wind Projects Summary 2011
Barn Hill (124-186MW)
Lincoln Gap (177MW)
Hallett S4 North Brown Hill (132MW)
Hallett S5 The Bluff (53MW)
Willogoleche (50MW)
Hallett S1 Brown Hill (95MW)
Kulpara (109MW)
Hallett S3 Mt Bryan (99MW)
Carmody’s Hill (140MW)
Hallett S2 Hallett Hill (71MW)
Collaby Hill (150MW)
Mount Millar (70MW)
Robertstown (90MW)
Waterloo (111MW)
Mount Hill (80MW)
Stony Gap (99MW)
Wattle Point (91MW)
Clements Gap (57MW)
Snowtown S2 (206MW)
Cathedral Rocks (66 MW)
Snowtown S1 (99MW)
Lake Bonney S1 (81MW)
Keyneton (120MW)
Lake Bonney S2 (159MW)
Starfish Hill ETSA (35MW)
Legend
Registered/Operating
Under Construction
Lake Bonney S3 (39MW)
Canunda (46MW)
Robe (600MW)
Kongorong (120MW)
Woakwine (300-600MW)
Yorke Peninsula (600MW)
Future Pipeline
Allendale (69MW)
ElectraNet
Future Retail Electricity Prices

31% nominal
increase over three
years

76% of increase is
related to
wholesale energy
and distribution
costs

7% of increase is
due to transmission
costs
Source: AEMC Report, 30 Nov 2010.
Figures are representative for customers on
standing offer contracts
ElectraNet
Slide 18
Future Retail Electricity Prices

Network costs drivers…
–
increasing levels of capital
works to meet growing demand
and replace ageing assets
–
higher rates of return due to
increase in debt premiums
following GFC
–
higher input costs as
commodities market recovers
from GFC
–
Changes in reliability standards
Source: AEMC Report, 30 Nov 2010.
ElectraNet
Slide 19
Munno Para Substation
www.electranet.com.au
Slide 20
Background

A substation is required in the Munno Para region. This
facility will provide the bulk supply connection point between
the 275 kV line delivered by ElectraNet and the
66 kV distribution supply required by ETSA Utilities.

This need was identified after examining supply issues for
the northern suburbs 66 kV network. The identification
process followed procedures established by the National
Electricity Rules. The options considered were subjected to
Regulatory Test

The process confirmed the necessity to construct the
infrastructure in this region, with an energisation date of
November 2014.
ElectraNet
Slide 21
Background … continued

The preferred site was deemed to be must suitable because:
–
It is located at the connection point between existing 275 kV
and 66 kV transmission lines;
–
It is a level undeveloped site;
–
The land available is of suitable size;
–
It has minimal residential development in the vicinity; and
–
There is an established corridor of trees bordering the road
frontages.
ElectraNet
Slide 22
Munno Para Substation Site
Lot 1000 DP 43447
Acquisition Area 12.0 ha (subject to survey)
Note: Area required for the
substation site is approximately
10Ha. This allows for current
works, future upgrades, and an
appropriate buffer zone.
Dwelling
Dwellings
CFS Depot
Dwelling
ElectraNet boundary
(indicative)
Proposed substation site
(Not to Scale)
Proposed ETSA
Utilities Site
ETSA Utilities
Boundary (indicative)
Proposed DTEI
Site
DTEI boundary
(indicative)
LMC:
Future
Residential
Allotment Boundary
ElectraNet
Slide 23
Acquisition Partners

ETSA Utilities also requires land on which to construct their
distribution infrastructure. ETSA will therefore also be a party
to this development.

DPTI also have secured an adjoining site on which to
construct infrastructure for the electrification of the Gawler
railway line.
ElectraNet
Slide 24
Munno Para site – existing
275 kV transmission line.
ElectraNet
Slide 25
Development Timeline
Specifications
Developed 
Contracts
awarded
Jan 2012
Site
secured
December
2011
Civil Works
commence
Sep 2013
Detailed
Design
Jan 2013
Substation
Energised
November
2014
ElectraNet
Slide 26
Visualisation of Munno Para Substation
Picture of visualisation
View from Dalkeith Rd, CFS Depot in the foreground
ElectraNet
Slide 27
Questions?
www.electranet.com.au
Slide 28