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Wave Power: How It Works [Overtopping: SSG]

SSG        Wave Dragon

Seawave Slot-Cone Generator
The water flows into the large concrete structure that collects water in three stacked reservoirs, with gates controlling the release of water. Once released, it falls through a multi-stage turbine that produces electricity before being returned to the body of water. The SSG can be produced in both an onshore and offshore system.

An onshore SSG is built in a wedge shape into the coast, allowing the waves to continually fill the reservoir. To smooth the regularity of incoming waves, the gated reservoir provides a constant flow of falling water through the turbine to enable a relatively fixed electricity output to the grid.

An offshore SSG can be built as a floating or fixed installation. This structure is somewhat similar to the Wave Dragon, but on a much larger scale. The waves wash over openings on the top of the SSG, which continually fill the reservoirs. Like the Onshore version, the gates control the release of the water before falling past the turbines encased in tubes. The electricity produced can be sent back to shore via floor-laid cables or used offshore, with an example being to power oil platforms.

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