Slide 1: Wairakei site tour
For personal use only Wairakei site tour 22 October 2015 Dennis Barnes, Chief Executive Officer 1
Slide 2: 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 3: Welcome
Welcome For personal use only • Welcome to Contact Energy. • Our goal is ZERO HARM and your contribution to achieving this is vital. • In everything you do always put SAFETY FIRST. » When in the field you must wear the safety gear provided » Please stay with your host. » If the alarm is sounded, fol
Slide 4: New Zealand has added subsidy free renewable generation, displacing fossil fuels
New Zealand has added subsidy free renewable generation, which, in a period of flat demand, has displaced fossil fuels For personal use only National electricity demand New Zealand electricity supply (based on GWh of generation) 40 100% Coal Gas 80% 30 Wind 60% Geothermal TWh 20 40% 10 Hydro 20% 0 2
Slide 5: 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% 600 500 80% % generation (GWh) 400 60% $m 300 40% 200 20% 100 0% - FY12 FY13 FY14 FY15 FY08 FY09 FY10 FY11 FY12 F
Slide 6: Contact's power stations have a capacity of 1,959 MW
Contact’s 11 power stations have a capacity of 1,959 MW and generate around a quarter of New Zealand’s electricity For personal use only Ohaaki 50 MW 327 GWh Te Rapa 44 MW Te Mihi Clyde Whirinaki Ahuroa 189 GWh 166 MW 432 MW 155 MW 17.0 PJ 1,159 GWh 0.03GWh 2,299 GWh 11.3 PJ TCC 377 MW 329 GWh Te Hu
Slide 7: Low cost renewable business 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 1,400 1,200 1,000 800 MW 600 400 200 0 Oct Mar Apr Nov Dec Jan May Jun Jul Aug Sep Feb Peakers Hydro (50th percentile inflows)
Slide 8: Geothermal from the beginning
Geothermal from the beginning For personal use only 8 Wairakei site tour 22 October 2015
Slide 9: New Zealand's geothermal operations are significant by world standards
New Zealand’s geothermal operations are significant by world standards For personal use only 9 Wairakei site tour 22 October 2015
Slide 10: Contact maintains a strong capability in geothermal development and operation
Contact maintains a strong capability in geothermal development and operation • Geothermal capability is world class and current For personal use only » A dedicated, internationally recognised subsurface team in Wairakei » Operational experience in one of the world’s longest producing geothermal reg
Slide 11: How geothermal works
For personal use only How geothermal works 11 Wairakei site tour 22 October 2015
Slide 12: Field locations
Field locations For personal use only 12 Wairakei site tour 22 October 2015
Slide 13: Plate relationships
Plate relationships For personal use only 13 Wairakei site tour 22 October 2015
Slide 14: Turning steam into power
Turning steam in to power 1 Extraction For personal use only Reinjection 3 Generation Separation 2 14 Wairakei site tour 22 October 2015
Slide 15: The utilisation of geothermal generation extends beyond power generation
The utilisation of geothermal generation extends beyond power generation For personal use only 15 Te Mihi site tour 22 October 2015
Slide 16: Underground infrastructure
Underground infrastructure For personal use only 16 Wairakei site tour 22 October 2015
Slide 17: Typical wellpad
Typical wellpad For personal use only 17 Wairakei site tour 22 October 2015
Slide 18: Constructing Te Mihi
Constructing Te Mihi For personal use only 18 Wairakei site tour 22 October 2015
Slide 19: Wairakei bioreactor – how it works
Wairakei bioreactor – how it works For personal use only 19 Wairakei site tour 22 October 2015
Slide 20: Our OSIP programme is redefining process safety
Our OSIP programme is redefining process safety … For personal use only 20 Wairakei site tour 22 October 2015
Slide 21: Bow tie diagrams used to visualise the hazard being assessed
… with bow tie diagrams used to visualise the hazard being assessed For personal use only 21 Wairakei site tour 22 October 2015