IPS Connect Rottnest Island 2017 Rottnest Island Water and Energy Nexus Project

1. IPS Connect
2017

2. WESTERN AUSTRALIA’S NUMBER 1
ISLAND TOURISM DESTINATION

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As a Nature Reserve:
✓ happy and healthy visitors
✓ Protect our landscapes/ wildlife/ and wealth of culture and
heritage
✓ Mindful of our land use
✓ To visit the Island – needs to be equitable & fair
✓ Effective management of resources is critical to short and long
term sustainability as a self funded tourism destination
✓ Rottnest Island is an Isolated Community Reliant upon own
resources for provision of essential services.
Principal Areas of Management:

4. Management of the Island –
RIMP 2014-2019
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5. Energy Review & Roadmap Conducted by Hydro
Tasmania in 2014
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▪ Asset condition
▪ System performance
▪ Energy Use
▪ Energy efficiency &
renewable energy
▪ opportunities
▪ Solar – abundant resource
▪ Wind – favourable resource

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Need for a Power Generation upgrade:
➢ Power system operation was a significant cost to Rottnest Island Authority
•Subsidies provided to island customers
•Renewable energy (RE) is cost effective and fits the island’s brand
•Existing wind turbine saves around 30% of expensive polluting diesel
•ARENA funding was available to help develop innovative RE projects
•Hydro Tasmania had the expertise in island power
systems and was able to apply for ARENA funding
✓ 3-way collaboration between ARENA, Rottnest
Island Authority and Hydro Tasmania to develop
the project

7. Project Funding:
▪ The project - Water Renewable Energy Nexus (WREN) attracted significant grant
funding from ARENA
▪ ARENA is the federal government agency providing grants for innovative renewable energy
projects
▪ WREN competed for ARENA grant funding on the basis of:
– Unique and innovative nature of project scope
– Addresses energy use for water supply in remote areas
– Opportunity to use project technology elsewhere
– Knowledge share obligation
– Highly credible delivery team (Hydro Tasmania previous ARENA project
success)
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8. Rottnest Island – Power Overview
Prior to WREN
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▪ 2.1MW diesel system
▪ 7x 300kW units
▪ 600kW wind turbine (30%)
▪ 1 ML of diesel / $1.5m p.a

9. Rottnest Island – Power Overview
Now with WREN
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600kW
600kW
2,040kW
Operated to make
use of renewable energy.
Where surplus energy is
converted to reserve.

10. Rottnest Island Water Renewable Energy Nexus
• 45% renewable energy (RE)
contribution
• 95% instantaneous RE
• Integrates Water Desalination as
Energy Storage
• New Hybrid Control & Diesel
Control
• Extensive Training
• Operator Remote Interface
• Education App

11. Rottnest Island – Solar Array
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• 600 kW DC Solar PV Array
• Direct fibre fast acting control
link to power station
• Site selection
• Away from main tourist
attractions

12. Rottnest Island – Control upgrade and dynamic
resistor
▪ Industry standards PLC based modular
system
▪ Complete control system upgrade (diesels,
LLD, feeders, solar, wind, resistor & DSM)
▪ Manages the variability in renewable
generation, improves system security
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13. Rottnest Island – Desalinisation control
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▪ Water on Rottnest Island is desalinated
= major use of energy
▪ Timing of desalinisation isn’t critical
(as long as we have water)
▪ Desalinate at time of high renewable
energy availability
▪ Use water as a battery!
▪ Control has been automated
▪ Greater savings from better use of RE

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Real time remote operator tools
remote annunciator and Phone App ?

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Real time remote operator tools
remote annunciator and Phone App ?

16. How is it working? (24/8/17)
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~ 5pm ~ 7pm
~ 9pm ~ 11pm

17. How does WREN perform?
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18. Knowledge Sharing
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19. Energy Roadmap: Increase RE - Reduce cost
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Future Potential:
•Additional renewables (wind, solar)
•Additional enabling technologies (batteries, flywheels, LLD)

20. Flinders Island Hybrid Energy Hub
▪ HT EPC
▪ Modular Solution
▪ Test off site
▪ Strong Community Engagement
▪ Whole of system Hybrid Control
Upgrade
▪ Undergoing Final Commissioning
▪ 100% RE Penetration
▪ 60% RE Contribution

21. Coober Pedy Renewable Hybrid Project
▪ HT Design, Owners Eng, Supply of
▪ D-UPS, Dynamic Resistor, LV-HV Switchgear,
Hybrid Control to EDL
▪ 70% RE Contribution target
▪ 100% Penetration
▪ Hybrid Control ‘talks to’ Existing Diesel
Control
▪ Multiple Party Interfacing – Physical and
Control

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