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PRIMRE/Databases/Projects Database/Devices/Wavestar WEC
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Wavestar WEC
The Wavestar machine draws energy from wave power with floats that rise and fall with the up and down motion of waves. The floats are attached by arms to a platform that stands on legs secured to the sea floor. The motion of the floats is transferred via hydraulics into the rotation of a generator, producing electricity. The most advanced Wavestar prototype is a a two-float section of a full-scale 20 float device. The prototype device is rated for 110 kW and the commercial 20 float device is rated at 600 kW. Waves run the length of the machine, lifting 20 floats in turn. Powering the motor and generator in this way enables continuous energy production and a smooth output. This is a radical new standard and a unique concept in wave energy; it’s one of the few ways to convert fluctuating wave power into the high-speed rotation necessary to generate electricity.
Additional Information
Device Status
Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?
Active
Technology Type
Power Take-Off
Mechanism that converts the motion of the prime mover into a useful form of energy such as electricity, learn more
Hydraulic Generator
Max Rated Power Capacity
The maximum amount of electricity that can be produced by the device, as rated by the manufacturer.
600 KW
Surface ExpressionTrue
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 1 January 2013
7
Energy Resource
- Wave
Water Column Position
Surface
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Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
6 June 2025
Test Sites where Wavestar WEC was tested
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Citation Formats
“Wavestar WEC.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Wavestar_WEC. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Wavestar WEC." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Wavestar_WEC.
