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The SSG Wave Energy Converter: Performance, Status and Recent Developments

Department of Civil Engineering, Seconda Università di Napoli, Via Roma 29, 81031 Aversa (Caserta), Italy
Department of Civil Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark
Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, Via Clauio 21, Naples, Italy
Author to whom correspondence should be addressed.
Energies 2012, 5(2), 193-226;
Received: 24 October 2011 / Revised: 6 January 2012 / Accepted: 17 January 2012 / Published: 31 January 2012
(This article belongs to the Special Issue Progress in Ocean Energy Conversion)
PDF [2072 KB, uploaded 17 March 2015]


The Sea-wave Slot-cone Generator (SSG) is a Wave Energy Converter based on the wave overtopping principle; it employs several reservoirs placed on top of each other, in which the energy of incoming waves is stored as potential energy. Then, the captured water runs through turbines for electricity production. The system works under a wide spectrum of different wave conditions, giving a high overall efficiency. It can be suitable for shoreline and breakwater applications and presents particular advantages, such as sharing structure costs, availability of grid connection and recirculation of water inside the harbor, as the outlet of the turbines is on the rear part of the system. Recently, plans for the SSG pilot installations are in progress at the Svaaheia site (Norway), the port of Hanstholm (Denmark) and the port of Garibaldi (Oregon, USA). In the last-mentioned two projects, the Sea-wave Slot-cone Generator technology is integrated into the outer harbor breakwater and jetty reconstruction projects. In the last years extensive studies have been performed on the hydraulic and the structural response of this converter, with the aim of optimizing the design process. The investigations have been conducted by physical model tests and numerical simulations and many results have been published on both conference proceedings and journals. The main scope of this paper is reviewing the most significant findings, to provide the reader with an organic overview on the present status of knowledge. View Full-Text
Keywords: wave energy converter; overtopping; SSG; model tests wave energy converter; overtopping; SSG; model tests

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Vicinanza, D.; Margheritini, L.; Kofoed, J.P.; Buccino, M. The SSG Wave Energy Converter: Performance, Status and Recent Developments. Energies 2012, 5, 193-226.

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