EDP was awarded project DEMOGRAVI3, to demonstrate an innovative underwater gravity foundation for offshore wind turbines. The project will last for 4 years and will include a demonstration of this technology off the Portuguese Coast, in Aguçadoura, Póvoa de Varzim. This initiative projects EDP in a new relevant project in an emerging area in the field of renewable energies.
EDP will coordinate project DEMOGRAVI3, a real environment demonstration of an offshore wind turbine with an innovative hybrid concrete-steel, self-buoyant gravity based foundation. This wind turbine will be installed in the Aguçadoura Offshore Energy Demonstration Centre, 6 km off the Portuguese Coast, using the same sub-sea cable to connect to the local grid that was used in the Windfloat (which will be decommissioned).
The main innovation of this structure is the fact that it does not require the use of heavy lift vessels, reducing the level of complexity and risk of offshore operations. All construction and assembly will be performed onshore, followed by the towing of the complete unit to the site where it will be submerged with an innovative and robust method.
The main goals of DEMOGRAVI3 are the following:
- Create and test an innovative offshore wind turbine sub-structure for transitional water depths (between 30 and 60m);
- Gather know-how and experience across the offshore wind supply chain, ranging from the design and manufacture to the operation and maintenance;
- Study the technical feasibility and business models, creating value in this area to the EDP Group.
EDP Renewables coordinates the project and NEW R&D – Centre for New Energy Technologies, coordinates the demonstration work. Also taking part in the European consortium are other participants that will contribute with different skills to the project:
- ASM Energia (Portugal)
- Técnica y Proyectos SA (Spain)
- Univ. Politécnica de Madrid, Harbour Research Lab. (Spain)
- WavEC Offshore Renewables (Portugal)
- Acciona Infraestructuras (Spain)
- Fraunhofer Gesellschaft IWES (Germany)
- Gavin & Doherty Geo Solutions (Ireland)
- Global Maritime AS (Norway)
The overall budget for this project is 26,8 M€, off which 19 M€ will be granted through the European Union Horizon 2020 Research and Innovation programme. The project will start in January 2016.