Floating WIND TURBINE FOUNDATIONS AND FLOATING Bridges
The coee and fb system uses engineering principles, namely; hydraulics, civil, mechanical and electrical to provide a layout, a choice of materials and equipment and to ensure proper construction, operation and maintenance.
1. The inventors have the following contributions to the offshore renewable energy extraction systems. Each succeeding system as a natural extension of the previous system and compliments it. A total of eight (8) patents had been granted or applied for as follows:Renewable energy wave pumps, Patented under patent number US 7,391,127 B2 (1-patent),The coordinated offshore energy extraction system; wave, tidal, wind and solar (coee) is pending under patent application No. 12,798,902, 4-patents,The coordinated offshore energy extraction and floating wind turbine foundations and floating bridges under application No. 29/463,002, 3-patents.
During the next 20 years, there is a need for 1,500,000 MW of new power plants. The fuel consumption for these power plants is estimated at 59 million barrels of oil per day. CO2 release to the atmosphere is estimated at 2.2 billion tons per year. Hence the need for a coordinated offshore energy extraction system to extract renewable offshore energy, namely; wave, tidal, solar and wind.Offshore wind farms with fixed pylon supports anchored to the sea bed are presently used. The problem with these systems is the large weight of the wind turbine and the large bending moments developed at the base of the wind turbine support due to large horizontal forces acting at the top of the supportFixed offshore pylon supports, high material and construction costs, large vessels and cranes for installation, sinking foundations due to vibration, foundation jacketing and difficulty and high costs to remove the sea bed anchors at the end of the project life as requested by some clients; for example French Public Utilities. All of these lead to high costs of materials, of construction and maintenance.Floating supports are being investigated with no viable system being available yet. The following proposal would solve many of the above difficulties, improve offshore energy extraction and would provide other services as detailed below.A witness for the viability of floating bridges is the SR 520 floating bridge built across lake Washington in 1962 and is still operating is still the world’s longest floating bridge, opened on Aug. 28, 1963
The COEE extracts offshore renewable energy; Wave, Tidal, Wind and Solar. The COEE construction unit is a building block for offshore wind farms, wind turbine floating foundations and Floating Bridges.
The Floating Bridge provides Floating Foundations support for offshore wind turbine farms and support for electric power and control cables to the shoreline and for maintenance.
The Floating Bridge is used for access to oil/gas rigs and for support of oil/gas pipelines, electric power and control cables to the shoreline.
The Floating Bridge provides access to and between islands, across rivers, at reservoirs behind dams, for offshore wind turbine farms; for transport, installation and maintenance.
The system accepts standard wind turbines as provided by others. The wind turbine support being modified to fix to the floating wind turbine structure.
A coee construction unit measuring 16.5x12.5 meters can provide power output in KW/m for 0 to 8m high wave, and energy output per year per meter of sea front in excess of the following depending on sea and wind states:
ITEM Output KW/meterOutput KW-H/m/Yr
i. Wave energy 0 to 88.49 0 to 45,503
ii. Tidal energy 0 to 22.82 0 to 166,586
iii. Solar Energy, 54 sqm. 0 to 12.50 0 to 39,400
iv. Wind Turbine 0 to 47.62 0 to 142,587
Total per meter of sea front 0 to 171.43 0 to 394,076
From the above, it is easy to calculate the Return on Investment (ROI), by estimating the capital cost per KW for each system, and the sale price per KW-Hour of energy provided per year.
It is worth for Clients and Consultants to request an Alternate Bid based on the Coordinated Offshore Energy Extraction and Floating Wind Turbine Foundations and Bridges. This way they will have a real estimate and an estimate of KW-Hours produced per year.
The COEE and FB system does not require R&D neither Prototype testing. The engineering calculations can be easily developed and verified, and all equipment are available on the market with proven performance records.
Provides a coordinated offshore energy extraction system namely: wave, tidal, solar and wind and an offshore floating bridge and floating wind turbine foundations.Assembly of all elements at the shoreline, are floated and towed to location ready for installation.No need for large vessels and cranes for installation and maintenance operations.Easy vehicular access to offshore wind turbines farmsNew method for floating wind turbine support.Electric power transmission lines and control cables are installed at the bridge instead of the sea bed.Simple and easy offshore construction and construction costs using simple engineering principles leading to competitive costs per kw-hour.Provides access, floating foundations and coee systems: offshore, in lakes, on water reservoirs behind dams, across rivers, to and between islands. Wave energy extraction applies only to offshore coee systems.Provides variable speed generators (VSG-USA) waiving the need for DC/AC electric current inversion for wind turbo and hydro turbo generators to improve and regulate electric power output for reliable connection to public electric networks. Sea bed anchors are assembled onshore, floated and towed to location ready for installation and are easily floated and towed to shore for disposal at the end of the project life for disposal.
The coee and Floating Bridge system is marketed worldwide to provide:A coordinated offshore energy extraction system; wave, tidal, wind and solar energy.Access to offshore coee system and wind farms for easy transport, installation and maintenance.Provides a floating foundation for offshore wind turbines and floating bridges.Provides support for electric power and control cables from the coee system and wind turbine farms to the shore line.Access to oil and gas rigs and platforms and wind turbine farms, and support for gas and oil pipe lines and for electric power and control cables to the shore line.Access to and between islands suitable for heavy traffic.Can be used as an alternate offshore two way highway where the shoreline is highly developed resulting in congested traffic.