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PRIMRE/Databases/Projects Database/Projects/FloWatt
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FloWatt
This pilot project will see the installation of seven HydroQuest turbines at Alderney Race (Le Raz Blanchard) in Normandy, where some of the planet's most energetic tidal currents are found. The tidal array will be connected to the local electrical grid and is expected to produce up to 17.5 MW or an annual production equivalent to the electricity consumption of 20,000 inhabitants. The turbines will be placed close to the coast (3 km) but submerged at a depth of 30-35 m and will therefore not be visible from land.
Additional Information
Project Status
Is the project actively being planned or is deployed in the water (active)? Or was the project canceled or completed (inactive)?
Active
Project Life Cycle
Project Progress through life cycle:
- Planned: Project has identified a deployment location and is preparing for deployment
- Operational: Project is deployed in the water and is active
- Completed: Project was previously deployed in the water
- Decommissioned: Installation has been fully removed in accordance with regulations
- Canceled: Project was canceled before being deployed in the water
Planned
Max Rated Power Capacity
The maximum amount of electricity that can be produced by project, based on available resources and device nameplate capacity.
17.5 MW
Project Start Year
2023
Energy Resource
- Tidal
Project Scale
Full-scale
Number of Devices
7
Grid Connectivity
Grid Connected
Waterbody
Ecalgrain Bay, Alderney Race, Normandy
Site Characteristics
Geographic characterization for the project location:
- Open Ocean: Main body of ocean, not enclosed or partially enclosed by land
- Coastal: Open water near the coast, spanning between land and shelf boundary
- Enclosed Bay: water that is partially surrounded by land, with a mouth open to larger water
- Constricted Channel: A channel where water flows quickly due to narrowing by the land
- River: Water flowing from land towards a larger body of water
Constricted Channel
Country
France
Last Modified
10 June 2025
This Project has the following MRE Devices
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Citation Formats
“FloWatt.” Marine Energy Projects Database: Projects, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/FloWatt. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Projects. <year>. "FloWatt." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/FloWatt.
