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Munno Para Substation and the role of ElectraNet

Munno Para Substation and the role of ElectraNet. Accessing Mining and Major Projects 2012 May 2012. Presentation Outline. Industry Structure and the Role of ElectraNet New Generation and Network Development Munno Para. Industry Structure and Overview. About ElectraNet.

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Munno Para Substation and the role of ElectraNet

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  1. Munno Para Substation and the role of ElectraNet Accessing Mining and Major Projects 2012 May 2012

  2. Presentation Outline Industry Structure and the Role of ElectraNet New Generation and Network Development Munno Para

  3. Industry Structure and Overview

  4. 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

  5. Existing Interconnector(export direction) National Electricity Market (NEM) Grid National Electricity Market is made up of five regions joined by transmission interconnectors Qld 8,891 MW NT QLD Total Demand: 38,842 MW SA 3,413 MW 1078 MW 400 MW NSW 14,289 MW WA SA NSW 1000 MW 680 MW 3000MW SNOWY Vic 10,459 MW 677 MW 1900 MW VIC 1100 MW 450 MW 600 MW Tas 1,790 MW TAS

  6. 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

  7. 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

  8. 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%

  9. South Australian Emission Levels South Australian electricity emissions are continuing to trend down and are nearly 20% down on 2004/05 peak

  10. Role of ElectraNet

  11. 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)

  12. The Roles and Expectations on Transmission • Additional role – delivering potentially lower prices by facilitating competition between generatorsboth intra-state 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 sub-optimal – 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

  13. 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. 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…” “Energy networks play a crucial role in bringing reliable energy to households and businesses – they are the foundation of our modern economy” Source: Martin Fergusson speaking at ENA Smart Networks Summit, 18 May 2011

  14. New Generation and Network Development

  15. Renewable and Emergent Technology in SA An optimistic view of timelines … Wind is presently the only mature technology; however, Solar thermal is improving and all should reach ‘Grid Parity’ by ≈2016 Commercially available Feasibility Studies Demonstration Construction Pilot Grid connection

  16. 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

  17. Wind Projects Summary 2011 Hallett S4 North Brown Hill (132MW) Barn Hill (124-186MW) Lincoln Gap (177MW) 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 Lake Bonney S3 (39MW) Kongorong (120MW) Registered/Operating Canunda (46MW) Woakwine (300-600MW) Robe (600MW) Under Construction Yorke Peninsula (600MW) Future Pipeline Allendale (69MW)

  18. 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 Slide 18

  19. 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. Slide 19

  20. Munno Para Substation

  21. 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.

  22. 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.

  23. Munno Para Substation Site Lot 1000 DP 43447 Acquisition Area 12.0 ha (subject to survey) Dwelling Dwellings CFS Depot Dwelling Proposed substation site (Not to Scale) Proposed DTEI Site Proposed ETSA Utilities Site LMC: Future Residential ETSA Utilities Line 300 m Enet Transmission Line Seagas Pipeline Note: Area required for the substation site is approximately 10Ha. This allows for current works, future upgrades, and an appropriate buffer zone. ElectraNet boundary (indicative) ETSA Utilities Boundary (indicative) DTEI boundary (indicative) Allotment Boundary

  24. 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.

  25. Munno Para site – existing 275 kV transmission line.

  26. Development Timeline Substation Energised November 2014

  27. Visualisation of Munno Para Substation Picture of visualisation View from Dalkeith Rd, CFS Depot in the foreground

  28. Questions?

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