silent invisible predictable sustainable
DESCRIPTION
Silent Invisible Predictable Sustainable. CREST ENERGY KAIPARA. Harness energy from coastal marine currents. WWW.CREST-ENERGY.COM. OBJECTIVES Generate electricity close to consumer demand Supply Auckland and Northland with power from marine turbines in the Kaipara Harbour - PowerPoint PPT PresentationTRANSCRIPT
1
Silent
Invisible
Predictable
Sustainable
Harness energy from coastal marine currents
CREST ENERGY KAIPARA
WWW.CREST-ENERGY.COM
2
3
OBJECTIVES
Generate electricity close to consumer demand
Supply Auckland and Northland with power 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
4
Marine Currents = High Intensity Energy
Water is non-compressibleand 832 times denser than air
SCALED at 1 MW
Wind turbineWind turbine
1 x 55m diameter
SolarSolar arrayarray
70m x 70m
Marine turbinesMarine turbines22 m diameter
5
Tidal volume: Eight billion cubic meters dailyCurrents: 2.1 to 2.4 meters per second
6
LUNAR ENERGY/ROTECHMARINE TURBINE
7
8
9Pouto Peninsula
10
11
12
13
14
Why DC cable transmission?
• Cook Straight electrical transmission uses DC cables (1961)
• Two small DC cables versus three large AC cables (30 km)
• Cables are armour plated and buried over one metre deep into harbour floor
• Power ranges from 0 to 200 MW to 0 in 6.5 hours
• Charging DC cables does not present a limitation, by comparison to AC
15
DC-AC converter and substation
• Sound-proof building50 x 30 x 10 metres
• Underground cables link indoor
converter to outdoor substation
• Substation fenced25 x 30 metres
• Transmission via overhead lines to Wellsford and Helensville (and/or other options)
16
MAUI DOLPHINMAUI DOLPHINCephalorhynchus hectoriCephalorhynchus hectori mauimaui
Critically endangered (46 to 280 individuals)
Agile, communicative, acute vision and echolocation
Confirmed sighting in the Kaipara Harbour
Produce 200 MW
Install turbines
Secure capital
Process consents
Developed concept
Consultation started
Crest Energy founded
Consent applications lodged
18
ADVANTAGES OF MARINE CURRENT ADVANTAGES OF MARINE CURRENT POWER GENERATIONPOWER GENERATION
Large capacity for producing power
Predictable energy resource
Sustainable and renewable energy
Minimal noise
No visual impact
Low greenhouse gas emissions
19
Ma te kotahitanga e whai kaha ai tãtau