Slide 1: ASX cover note: CEN Taranaki Site Tour Presentation
For personal use only To Company Announcements Office Facsimile 1300 135 638 Company ASX Limited Date 28 July 2015 From Helen Hardy Pages 20 Subject CEN Taranaki Site Tour Presentation Attached herewith is a copy of an announcement released to the NZX by Contact Energy today. Origin Energy holds 53.
Slide 2: Taranaki site tour
For personal use only Taranaki site tour 28 July 2015 James Kilty, Chief Generation and Development Officer Peter Kane, General Manager Operations 1 Fraser Gardiner, Head of Investor Relations and Strategy
Slide 3: Cautionary statement
Cautionary statement For personal use only This presentation may contain projections or forward-looking statements regarding a variety of items. Such forward-looking statements are based upon current expectations and involve risks and uncertainties. Actual results may differ materially from those st
Slide 4: Today's presentation
Today’s presentation For personal use only • Welcome James Kilty • Safety briefing Paul Fougere - Head of Generation Taranaki • Thermal update Fraser Gardiner • Operational overview Peter Kane 3 Taranaki site tour 28 July 2015
Slide 5: For personal use only
4 For personal use only
Slide 6: Investment in renewable generation has lowered Contact's cost of energy
The investment in renewable generation has lowered Contact’s cost of energy and requires limited ongoing capital expenditure For personal use only Generation mix Capital expenditure 100% 700 600 80% 500 % generation (GWh) 60% 400 $m 300 40% 200 20% 100 0% - FY12 FY13 FY14 FY15 FY08 FY09 FY10 FY11 FY
Slide 7: Thermal assets role is changing from baseload to hydrology risk management
Thermal assets role is changing from baseload operation to providing hydrology risk management and optionality Contracted gas volumes For personal use only • Extension to gas supply agreement 35 Peak take or pay OMV (take-or-pay) completed with Maui Developments was 52 PJ in CY10 Maui (max) Limited
Slide 8: Low cost renewables with gas storage and peakers can support a retail business
Contact’s low cost renewable business combined with gas storage and peakers can support a retail business of around 7.1 TWh For personal use only Generation and load profile 1,600 1,400 1,200 1,000 MW 800 600 400 200 0 Apr Mar Nov Dec Jan Jun Aug Sep Jul Oct May Feb Whirinaki Peakers Hydro (50th per
Slide 9: The role of Ahuroa gas storage is developing
The role of Ahuroa gas storage is developing, adding value to the thermal operations For personal use only FY15 gas injections and extractions 1000 2,000 • Initial investment (excl Cap interest) $197m Monthly injections Monthly extractions YTD injections YTD extractions » Assets $111m 800 1,600 » Ga
Slide 10: The role of large thermal plants in New Zealand is likely to reduce
The role of large thermal plants in New Zealand is likely to reduce over time, with Contact well positioned to support flexible development when it is needed For personal use only • Stratford » Up to 400 MW of new peaking or CCGT operation consented • Otahuhu » Up to 400 MW of new CCGT capacity cons
Slide 11: Thermal operations – Peter Kane
For personal use only Thermal operations – Peter Kane 10
Slide 12: Gas turbine: The Brayton Cycle
Gas turbine: The Brayton Cycle Typical efficiency: 33% - 45% For personal use only Air inlet Compressor blades Fuel in Stator blades Turbine blades 11 Taranaki site tour 28 July 2015
Slide 13: Steam turbine – The Rankine Cycle
Steam turbine – The Rankin Cycle Typical efficiency: 33 – 38% For personal use only 12 Taranaki site tour 28 July 2015
Slide 14: Combined Cycle
Combined Cycle Typical efficiency: 55% - 60% For personal use only 13 Taranaki site tour 28 July 2015
Slide 15: LMS gas-fired peakers
LMS 100 gas-fired peakers For personal use only VBV Silencer Cooling Tower Air Intake Air-to-water Intercooler Gas Turbine Auxiliary Skid Generator Exhaust Stack 14 Taranaki site tour 28 July 2015
Slide 16: Ahuroa gas storage facility
Ahuroa gas storage facility For personal use only 15 Taranaki site tour 28 July 2015
Slide 17: AGS provides Contact with up to 17 PJ of gas storage capacity
AGS provides Contact with up to 17 PJ of gas storage capacity For personal use only • ~17 PJ max working volume • 11.3 PJ working volume as at 30 June 2015 • Connected to Stratford power stations by 2 pipelines • Operated by NZEC (from Waihapa Production Station) • Max reservoir pressure 3,450 psi •
Slide 18: AGS is connected to the Stratford power stations by two pipelines
AGS is connected to the Stratford power stations by two pipelines • Bypass pipeline completed 2013 Permit 52278 For personal use only Ahuroa » 8.7km, 450mm diameter pipeline Well-site between Ahuroa and Stratford » Purpose to bypass Waihapa Production Station to eliminate costs, and allow for Piakau
Slide 19: OSIP programme – redefining process safety
OSIP programme – redefining process safety For personal use only 18 Taranaki site tour 28 July 2015
Slide 20: Bow tie diagrams are used to visualise the hazard being assessed
Bow tie diagrams are used to visualise the hazard being assessed For personal use only 19 Taranaki site tour 28 July 2015