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Nuevo sistema de conversión de energía de corrientes oceánicas más eficiente y económico


Oferta Tecnológica
Una empresa italiana ha desarrollado una nueva tecnología para producir energía limpia explotando caudales de agua de movimiento lento. La tecnología consiste en un sistema de conversión de energía que utiliza dos hidroturbinas de eje horizontal instaladas en los lados de una estructura sumergida de soporte. El sistema ajusta automáticamente la orientación hasta la profundidad óptima para generar energía y aumentar la productividad anual. Se buscan fabricantes con el fin de establecer acuerdos de joint venture y empresas/industrias en China, Corea del Sur, Canadá y Reino Unido para establecer acuerdos financieros.


Innovative ocean current energy conversion system technology that is more efficient and cheaper
An Italian company has developed an innovative technology designed to produce clean energy exploiting slow-moving flows of water. The system self-adjusts orientation to the optimum depth for the power generation, in order to get higher annual energy production. The company is interested in joint venture agreement with a manufacturing company and/or financial agreement with companies/industry possibly located in China, South Korea, Canada and UK where ocean currents are more productive.
The technology offered consists in an ocean energy conversion system, an using two horizontal axis hydro turbine mounted on the side of a supporting submersed structure. The system is sustained by the buoyancy provided by a streamlined axial-symmetric floating body, placed at the top of the structure. It is tethered to seabed through a mooring cable. In the final arrangement a winch is also installed on board in order to control the effective depth and to allow an easy recovery at the surface for maintenance purposes. Two synchronous generators are installed on board and mounted on the turbines shafts through a gearbox. Each generator is electrically controlled by an inverter, both for grid connection purposes and in order to attain optimal working conditions at different current speed.
The power connection is provided by a power cable, passing along the mooring cable and extended up to an on-shore grid connection point.
The three bladed turbines have been developed and designed in order to reach a high efficiency in a relatively wide operating conditions range, They have been intensely tested both in wind tunnel and towing tank experimental campaigns. A diffuser is placed around each turbine and allow an enhancement of the energy conversion process by increasing the mass flowing though the turbine swept area. One of the major feature of the system is the ability to self-orient, particularly useful in reversing current regimes, such as with tidal current. During operation, the effective working depth and the system orientation vary with current stream speed and direction as a consequence of the balance among the thrust acting on the turbines, the hydrodynamic drag forces and the buoyancy force acting on the system, which behaves somewhat like a "kite".
The system can be easily towed to the installation site and thanks to the self-towing winch can be positioned at predetermined depth.
For maintenance, the system can be easily brought to the surface simply releasing the tension of the mooring line.
The company is an affirmed reality that has more than 25 years of experience in working on water flow´s exploitation during which has product and tested many scaled model of horizontal axis marine turbine.
The company is looking for investors that are interested in innovative and productive system. It is interested in Commercial agreement, Financial agreement, Joint venture agreement with manufacturing companies or investors for the construction and commercialization worldwide of its innovative renewable energy system.
Advantages and Innovations:
The main advantages of the innovative horizontal axis marine turbine developed by the Italian company compared to other competitors are:
- the self orientation ability, particularly useful in reversing current regimes, and the ability to position itself always to the optimum depth for power generation. These features allow to get an higher AEP (Annual Energy Production) compared to its competitors;
- A winch, remotely controlled, lets the system rise up to the surface allowing low cost of maintenance compared to the fixed existing product;
- The support structure mass drives costs of structure and onshore/offshore operations. The innovative system, differently from other competitors on market, allows maintaining constant the mass at any water depth keeping the capital cost low.
- Simple mooring structure and fast deployment time.
Stage of Development:
Field tested/evaluated
Patents granted
CommeR Statunts Regarding IPR Status:
Protection is granted for Italy.

Partner sought

Type and Role of Partner Sought:
Type of partner sought: industry, manufacturing companies, companies or investors interested in renewable energy systems.
Specific area of activity of the partner: energy, ocean/river turbines, mechanical.
Task to be performed by the partner sought: cooperating with for launch production and commercialization of the turbine and eventually for its construction if the partner is a manufacturing company.


Type and Size of Client:
Industry SME <= 10
Already Engaged in Trans-National Cooperation:
Languages Spoken:


Technology Keywords:
04002005 Generadores, motores eléctricos y conversores de potencia
04005002 Hydropower
04002009 Turbinas