CREST ENERGY KAIPARA

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SustainableInvisiblePredictable
CREST ENERGY
Harness energy from coastal marine currents
WWW.CREST-ENERGY.COM
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OBJECTIVES Generate electricity close to
consumer demand Supply Northland and Auckland
with electricity from marine turbines in the
Kaipara Harbour Produce and assemble turbine
components for local and export markets Evaluate
other sites in New Zealand and Asia-Pacific rim
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• Tidal volume Eight billion cubic meters daily
• Currents 2.1 to 2.4 meters per second

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Marine Currents High Intensity Energy
SCALED at 1 MW Wind turbine 1 x 55m
diameter
Water is non-compressible and 832 times denser
than air

Solar array 70m x 70m
Marine turbines 22 m diameter
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Rotech Tidal Turbine
Simple, robust engineering
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South Head bird sanctuary and military bombing
range
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Pouto Peninsula
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CHARACTERISTICS OF MARINE CURRENT POWER
GENERATION

• Large capacity for producing power
• Predictable energy resource
• Sustainable and renewable energy
• Minimal noise
• No visual impact
• Low greenhouse gas emissions

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Is marine life at risk?
Turbine rotors revolve passively once every four
to five seconds Rotors shielded by Venturi
shrouds Marine mammals and fish sense and avoid
obstacles (Southern Right whale, NZ sea lion,
orca, dolphin) Transmission cable (DC) shielded
and buried to mitigate EMF transmission Benthic
fauna and flora effects transient and minimal
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MAUI DOLPHIN Cephalorhynchus hectori maui
Critically endangered (46 to 280
individuals) Agile, communicative, acute vision
and echolocation Confirmed sighting in the
Kaipara Harbour
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Crest Energy lodged AEE application July 2006

• Place 200 turbines in the Kaipara Harbours main
  channel
• Install sub sea, DC transmission cable up the
  Hoteo River
• Construct a land-based electrical sub station
• Connect with 110- and/or 220-kV lines for power
  distribution

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Produce 200 MW
Install turbines
Secure capital
Process consents
Consent applications lodged
Crest Energy founded
Consultation started
Process consents
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Supplier of eco-energy to upper North
Island Provide substantial economic
benefits Create jobs through local manufacture
of turbines Create NZ industry with global
export potential Promote local community
activities e.g. estuarine restoration
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Ma te kotahitanga e whai kaha ai tãtau
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