- The following describes “Floating Marine Energy Extraction” system (FloatNRG). It is an updated version of the “Coordinated Floating Energy Extraction Equipment” (COFEQ) for extracting renewable marine energies from; sea waves, ebb/tidal currents, solar and wind.
- “From: Business Green Renewables, Issue of 14 Mar. 2017
- Manmade islands and floating turbines chart course for lower cost offshore wind
- Plans advance for North Sea 'Power Link' island and Irish floating wind farm, as industry continues to pursue steep cost reductions
- Just days after fresh predictions the cost of offshore wind energy could soon undercut both nuclear and coal power, further evidence has been provided on how the industry intends to maintain its recent”...
NEED for Floating Marine Energy Extraction
- The following highlight the need for a coordinated energy extraction system from: sea waves, ebb/tide currents, solar and floating wind turbines away from the shore line where sea bed depth exceeds 30 meters and where renewable energy is abundant and high, due to higher waves and higher wind speeds.
- Rarity of Real Estate, its high costs, environmental considerations and rising wind turbine support costs at sea bed depths above 30m,
- Abundance and higher marine renewable energies from waves and wind are abundant far away from the shoreline;
- Scenic View is not affected by locating energy extraction equipment at far away offshore sites where seabed depths are more than 30-meters,
- Fixed pylon wind turbine supports are expensive beyond 30 m sea bed depths.
- Heavy Lift Marine Vessels, are needed for presently used fixed pylon wind turbine supports,
- Maintenance Vessels or helicopters for operation and maintenance are needed for presently used fixed pylon wind turbine supports
PRESENTLY USED INSTALLATIONS
Presently used offshore wind turbines have the following disadvantages:
- Fixed pylon supports anchored to the seabed are limited to sea bed depths of 30m and below, due to higher costs beyond 30m.
- Modularity they lack modularity for ease of fabrication and construction and assembly at the shoreline.
- Foot prints they use large area.
- Draft depths more than 8m are required.
- Floating Causeway the designs do not provide a floating causeway for vehicular traffic to connect adjacent wind turbines in an offshore wind farm.
- Marine Energy extraction is not provided at the floating wind turbine support.
PROPOSED SYSTEM and NOVELTIES
Solves the deficiencies of the presently used as follows:
- Depths higher than 30m are easily handled by the proposed floating wind turbine support.
- Storm conditions with wind speeds up to 240 Km per hour and waves up to 8m high including daily and seasonal sea level variations are easily handled.
- Modular Construction Units are provided to allow ease of fabrication, and assembly at the shore line with minimum cutting or welding. They are then floated and towed to location for anchoring to the sea be with all equipment ready for operation. Novelty
- “Tension Leg Platform” (TLP), consists of modular construction units is a submerged platform to provide floating support structure for the wind turbine and energy extraction equipment.
- Marine Vessels equipped with heavy lift cranes are not needed. Novelty
- Floating Causeway for vehicular traffic is provided to connect adjacent wind turbines in a wind turbine farm for ease of maintenance and operation. Novelty
- Dry Deck space is provided for installing protective electric and control equipment related to wind turbine and marine energy extraction equipment. Novelty
- Energy Output of 3,312,923 KW-hours per year are extracted from; marine and solar energies at each floating wind turbine support as detailed below. No other floating wind support can provide this marine energy at each floating wind turbine support. Novelty
The floating wind turbine structure provides space for Floating:
- Marine laboratory
- Wind Turbine support up to 6 MW.
- Power Plants conventional and substations
- Bridges and Causeways.
- Islands for waste management temporary storage and waste treatment plants including recycling plants.
- Residential Islands.
- Docks and Wharfs for large tourist ocean liners.
- In addition, the FloatNRG system provides support for the following:
The floating wind turbine structure provides space for:
- Marine energy extraction equipment,
- Electrical protection and control systems for the wind turbine electrical output,
- Energy storage in the form of battery power packs,
- Energy storage in the form of compressed air,
- Sub stations where a wind farm is required,
- Floating causeway for vehicular traffic between the floating wind turbines for ease of operation and maintenance.
- Floating island for different utilizations as needed,
- Weight Total 1,851 tons, Uplift Total 10,134 tons,
- Net Uplift 4.59 tons per Sqm for 5 meter FXFL, 5.47 tons, for 6 meter
- Bending Moments 176,439 ton-m Resisting Moments 250,103 ton-m
- Foot Print 2,207 square meters, (48mx48m).
- Draft 8.00 m required for assembly of the FloatNRG system.
In addition the floating wind turbine support provides energy output estimated at 3,312,923 KW-Hours per year form waves, ebb/tides and solar energies.
OUTPUT POWER and ENERGY
Description Marine Wind Total
Power KW Energy KWh Power KW Energy KWh KWh
WT Support 1x6MW 954 3,312,923 6,000 21,600,000 24,912,923
WT Farm 5x6MW 10,133 36,821,333 30,000 108,000,000 144,821,333
WT Farm 50x6MW 101,333 368,213,333 401,333 1,080,000,000 1,448,213,333
SEA and WIND STATES
- Wind 4 months at 24 hours per day
- Wave 4 months at 24 hours per day
- Solar 12 at 8nhours per day
- Tidal 12 at 20 hours per day
- Wind turbine spacing 200 meters
COST per KW Hour
- 12 US cents per KW-hour or less. The physical data and energy outputs and the country, project location, project size and special requirements are sufficient for a main contractor/wind turbine supplier to estimate the total cost of the project and the resulting sale price of one (1) KWh.
- A good and simple practical way for proving the viability and economy of the system, is for the Client/Consultants to request Bidders to submit in addition to their Bid, an Alternate Bid using the (FloatNRG) systems.
The following proposal would meet the present and provide future requirements of Lebanon, namely;
- Five (5) floating wind turbines each rated at 6 MW, to provide; 40.133 MW, 30MW from wind and 10.1MW marine and solar, and a total of 144,821,333KWh/year.
- Option, floating island 60,000 Sqm or more for waste management.
- Fifty (50) floating wind turbines each rated at 6 MW: 411.433 MW 300MW from wind and 101MW marine and solar, and a total of 1,448,213,333
- Option, floating island 60,000 Sqm or more for waste management.
- Floating wharf for decking and facilities for ocean liners that are necessary for the tourist industry.
- Dry Dock for heavy marine work, for oil, gas and renewable energy operations.
- Review of the project would high light its advantages, viability and high rate of return on investment (ROI) to entice private investors.
- Investors/Developers; once they realize the high return on investment and the need for renewable energy, they would be enticed to contact the public utility to secure a Power Purchase Agreement (PPA) to provide electric energy for a minimum period of twenty years (20) at an agreed sale price per KW-hour. Priority to be given for renewable energy to be fed into the electric network.
- Once the above is secured they would form an entity of investors, public utility and developers to execute the project.
- Oil/Gas Developers should be made aware of this project proposal. Their Bid Documents should include financing and/or execution the project, as it is a necessity for their operations.
- It would provide electric energy for their orphan platforms, provide support for their pipelines with a causeway for ease of operation and maintenance of their facilities.
- Oil/Gas Developers should be requested to provide the ceiling height of their platform above MSL, so that renewable energies would be provided from; sea waves, ebb/tide currents and thermal.
- In addition, deep sea cold water would be provided for air conditioning of personnel and or equipment located at the platform, if needed.
A patent was granted by the USPTO under number US 7,391,127 B2 dated Jun 24. 2008 under; RenewableEnergyWavePumps.
“Coordinated Offshore Energy Extraction” (COEE) system, for extracting energy from; waves, ebb/tides, solar and wind is are four (4) pending patents.
“Coordinated Floating Energy Extraction Equipment” (COFEQ), including floating wind turbine supports, floating bridges and floating islands are three (3) pending patents.
A total of eight (8) Patents Granted or Pending are in the process.