Project Manager
PRIMRE/Databases/Projects Database/Projects/Cardiff Tidal Lagoon
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Cardiff Tidal Lagoon
Tidal lagoon electricity generating station with a potential generating capacity of 250MW up to a possible 320 MW. A seawall attached to the foreshore, at its western extent approximately 2 km from the entrance to Cardiff Bay, and at its eastern extent approximately 2km from the mouth of the River Usk. The furthest offshore extent is approximately 8km from the foreshore to the centre of the Severn Estuary.
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)?
Inactive
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
Canceled
Max Rated Power Capacity
The maximum amount of electricity that can be produced by project, based on available resources and device nameplate capacity.
3000 MW
Project Start Year
2014
Energy Resource
- Tidal
Project Scale
Full-scale
Number of Devices
100
Waterbody
Severn Estuary
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
River
Country
United Kingdom
Last Modified
10 June 2025
Citation Formats
“Cardiff Tidal Lagoon.” Marine Energy Projects Database: Projects, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/Cardiff_Tidal_Lagoon. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Projects. <year>. "Cardiff Tidal Lagoon." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/Cardiff_Tidal_Lagoon.
