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PRIMRE/Databases/Projects Database/Devices/Bulb Turbine
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< PRIMRE | Databases | Projects Database | Devices
Bulb Turbine
These turbines are used in La Rance Tidal Barrage. The plant uses 24 10-megawatt low-head bulb-type turbine generator sets. The new bulb-type turbines, developed by EDF, were designed to generate energy on either the incoming (flood) or outgoing (ebb) tide, and to pump in both directions to raise (high tide) or lower (low tide) the basin level to add to the energy potential of the subsequent generating phase.
Device Status
Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?
Inactive
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.
10000 KW
Surface ExpressionFalse
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 30 August 2023
9
Energy Resource
- Tidal
Water Column Position
Surface
--------------------------------------------
Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
13 June 2025
Citation Formats
“Bulb Turbine.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Bulb_Turbine. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Bulb Turbine." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Bulb_Turbine.
