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PRIMRE/Databases/Projects Database/Devices/Water2Energy VAWT
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Water2Energy VAWT
Vertical Axis Water Turbines (VAWT) are turbines with a vertical shaft. Foils connected to the vertical shaft makes this typical water turbine. The standard version is called a Darrieus turbine. Pitch control is developed for maximum efficiency and a high fish friendliness. The pitch control enables energy extraction from water currents at lower speeds. Since the foils have a standard and constant cross section, they can be fabricated very cost effective. Furthermore, the vertical axis gives the advantage to place vital components like the gearbox and generator above the water surface. This lowers the requirements and therefore the costs for these components. Since the gearbox and generator are easily accessible, maintenance will therefore be more cost effective. Due to its geometry, the turbine is easely scalable. Therefore, the turnbine can be adapted to a wide range of existing constructions. Turbines of 1×1 meter, 1×2 meter, 2×2 meter, and 2.1×4 meter are fabricated and tested.
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
Direct Drive Generator
Max Rated Power Capacity
The maximum amount of electricity that can be produced by the device, as rated by the manufacturer.
100 KW
Surface ExpressionTrue
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 3 May 2022
7
Energy Resource
- Tidal
- Ocean Current
Water Column Position
Surface
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Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
9 June 2025
Projects Using Water2Energy VAWT
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Citation Formats
“Water2Energy VAWT.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Water2Energy_VAWT. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Water2Energy VAWT." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Water2Energy_VAWT.
