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Advantages of Floating Offshore Wind Farms
• Wind a Rapidly Growing, Free, Inexhaustible, Environmentally
Friendly, Utility Scale and Cost Effective Energy Source
• Vast Offshore Wind Resources with Higher and Steadier Wind Speeds
• Over 75% of Worldwide Power Demand From Coastal Areas
• Power Increases with Cube of Wind Speed ~ 50% Higher Offshore
• Lower Offshore Wind Turbulence – Longer Farm Life ~ 25-30 Years
• Connection to Electric Grid by Sub Sea AC or HVDC Cables
• Experience of Oil Industry Essential for the Development of Safe and
Cost Effective Spar, TLP and Hybrid Wind Turbine Floaters
Floating Wind Turbine Attributes
• Water depths of 30 – 1000 m
• 5-MW Wind Turbine: 1 GW Floating Wind Farm (200 Units)
• Flexible installation process:
– Full Assembly at a Coastal Facility
– Ballasted Mini TLPs, Spar Buoys and Hybrids
– Floater Size Independent of Water Depth
– Tow Stably Floating Units Offshore
– Floating Wind Turbine Movable for Major Maintenance
– Gravity Anchors for Tethers and Mooring Lines
– Conventional and Synthetic Catenaries
• Attractive Economic and Financial Attributes
Conclusions
• Design of Hybrid TLP / Spar Buoy Floaters and Mooring System
Optimized for Water Depth, Wave and Wind Environment
• Low Nacelle Accelerations – Initial Use of Marinized Onshore Wind
Turbines
• Longer Term – Two Bladed Downwind Turbines with 10-20 MW
Generators Designed for Smart Offshore Electric Grids
• Attractive Economic Fundamentals – Scalable Investment
• Carbon Emissions Credits
• Non Recourse Project Finance for Utility Scale Offshore Wind Farms