Company developing Swansea Bay tidal lagoon is planning a similar project in Cardiff Bay.
Tidal Lagoon Power released details about the project to Planning Inspectorate. According to their website, the tidal lagoon will have a capacity between 1800MW and 2800MW.
The project would comprise 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 will be approximately 8km from the foreshore to the centre of the Severn Estuary.
Tidal Lagoon Power is expected to submit an application to the Planning Inspectorate in the second quarter of 2017.