laura engeman may - iooc.us · microsoft powerpoint - ppt0000013.ppt [read-only] author: nrome...
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Laura EngemanCalifornia Ocean Protection Council
May 25, 2010
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Marine Renewable Energy Resources in California
Wave (Hydrokinetic)
Offshore Wind
Tidal Energy
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Point Absorber
Overtopping DeviceOscillating Water Column
Attenuator Submerged Pressure Differential
Oscillating Surge Converter
Different approaches to harnessing energy from waves
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Wave Energy Development Timeline
Robert Thresher, National Renewable Energy Laboratory, The United States Marine Hydrokinetic Renewable Energy Technology Roadmap, April 13, 2010
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Proposed Wave Energy Projects in California
•PG&E Humboldt WaveConnect
•Greenwave Mendocino Wave Park
•Sonoma County Hydrokinetic Energy Project (SCHEP)
•Greenwave San Luis Obispo Wave Park
•PG&E Central Coast WaveConnect
•SARA, Inc. Catalina Island
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• Baseline Characterization of wave heights & directions, winds, and current profiles
Developer Site Selection based on Wave Climate
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•Bathymetry •Littoral processes•Marine mammal observations•Fish and invertebrates•Nearshore and intertidal habitats
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Adaptive Management and Monitoring Information Needs
Pilot testing
Min/Max thresholds allowed for environmental impacts
• Wave forecast models
• Wave reduction and shadow effects
• Sediment transport changes
• Wave forecast models
• Wave reduction and shadow effects
• Sediment transport changes
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PG&E Humboldt WaveConnect Project
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PG&E WaveConnect Project
Demonstration Project of 4 to 5 Wave Devices
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Humboldt WaveConnect Project Anticipated Timeline
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PG&E WaveConnectPreliminary Application
Baseline Characterization of SiteBathymetry SurveysSide‐Scan SonarSub‐bottom SurveySediment sampling
Modeling of Wave Attenuation
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Oregon Wave Energy Trust•Cumulative effects framework• Sand transport• Seabird distribution (radar, survey)• Crab & fish baseline distribution
US Department of Energy ‐‐ NNMREC• Environmental Characterization, Test Berth Site• Sand transport and current modeling
US Minerals Management Service• Benthic habitat characterization
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UK Studies
UK Centre for Environment, Fisheries and Aquaculture Science (CEFAS)
Sediment transport monitoringAssessment of changes to the inshore wave regime
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Surface Interactions with Wave Devices: High Specification Camera ObservationsGoal: Assess the effects of protruding elements of wave devices on marine mammals and birds