Presentation on theme: "The shoreline OWC wave power plant at the Azores"— Presentation transcript:
1 The shoreline OWC wave power plant at the Azores Catarina TravassosNelson MarquesRui Martinho
2 Project Definition EC Non Nuclear Energy Programme JOULE Partners IST Queen´s University of BelfastUniversity College CorkEmpresa de Eletricidade dos AçoresEDPEFACECProfabril
3 Ocean Wave Energy Project “It has been estimated that if less than 0.1% of the renewable energy available within the oceans could be converted into electricity it would satisfy the present world demand for energy more than five times over”Marine Foresight Panel
4 Wave Power PlantThis technology addresses the sustainable production of electrical energyNational InterestsReduction of energy dependence from the exterior, particularly in the case of islands.Production of electric energy with little environmental impact.Acquire the knowledge of the integration of the overall system.Acquire more knowledge of civil constructing in the shoreline.Exportability of this knowledge with economical advantages.
5 Wave Power Plant International Interests Winning Groups Develop new knowledge in the renewable energies fieldDetermination of the critical economical factors of building and operating a small/medium unit.Winning GroupsLess environmental impact on the local communities compared to conventional thermo electrical power generation.More energy independence for communities near coastal areas.Electrical Utilities may benefit from operating experience in distributed power systems with renewable energy sources.
6 400 kW of maximum output power The Technology ...An Oscillating Water Column type - OWCA horizontal Wells turbineA variable speed generatorA by-pass relief valve400 kW of maximum output power
7 The Wells turbinesWells turbines have the unique property of turning in the same direction regardless of which way the air is flowing across the turbine blades.
8 Innovation ...The generator is connected directly to the rotor, eliminating the need for transmission and gearing.The generator's variable-speed allows the turbine rotor to slow down or speed up in response to air flow changes.A power electronics unit converts the variable-frequency, alternating current produced by the generator into constant-frequency, 50-cycle alternating current compatible with the utility grid.Use of different materials namely stainless steel, carbon steel and non-metallic materials in this kind of project.
9 Oscillating Water Column Wave Energy DevicesUp and DownFloatOscillating Water ColumnRollSingle RollerConnected FloatsImpactOn Fixed BodyOn Flexible Body
10 Improvements towards efficiency Developing and optimizing OWC control strategiesDeveloping more advanced geometry (fixed-pitch) turbine rotor bladesCarrying out studies on the integration of wave power plants on small isolated electrical grids
11 Waves are a free and sustainable energy resource
12 Environmental Friendly Wave energy is a renewable resourceThe only resources used through its life cycle are for production, set-up and dismantling of the facilityThe environmental impact is negligible