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PRIMRE/Databases/Projects Database/Devices/Yongsoo OWC
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Yongsoo OWC
The Yongsoo OWC is a 500 kW fixed oscillating water column wave energy converter installed at berth 1 of the KRISO-WETS test site. The construction of the Yongsoo OWC pilot plant was completed in July 2016, predating the establishment of the test site. An OWC consists of a hollow structure open to the sea below the water surface. Wave action alternately compresses and decompresses trapped air within the hollow chamber, forcing it to flow through a turbine coupled to a generator. The plant is equipped with impulse turbines and 250 kW generators, and is grid-connected by a 22.9 KV AC underwater cable. The Yongsoo pilot plant is 37 m long and 31 m wide, equipped with two axial-flow impulse turbines and two 250 kW generators, and is grid-connected by a 22.9 kV AC underwater cable. The Ring-type impulse turbine of which KRISO has its own patent right was equipped with 1.8 m diameter, 26 rotor blades, and fixed guide vanes. Since its installation, the Yongsoo OWC has undergone a series of trials used to verify and optimize its components and controls. In 2023, KRISO reported that they intend to use the plant to produce hydrogen starting in 2024.
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
Air Turbine
Max Rated Power Capacity
The maximum amount of electricity that can be produced by the device, as rated by the manufacturer.
500 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 September 2019
8
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
Projects Using Yongsoo OWC
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Citation Formats
“Yongsoo OWC.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Yongsoo_OWC. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Yongsoo OWC." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Yongsoo_OWC.
