Tidal Lagoon Swansea Bay


Tidal Lagoon Power are developing the world’s first, man-made, energy-generating lagoon in Swansea Bay

Tidal Lagoon Swansea Bay

At 320MW installed capacity, Swansea Bay Tidal Lagoon could be the largest marine energy development in the world. Developed by Tidal Lagoon Power Limited, it would have an entirely predictable 495GWh output each year of clean, green electricity and is estimated that it will power 155,000 homes for 120 years – that’s about 90% of Swansea Bay and 11% of Wales’ domestic use.

Benefits for Wales

Tidal Lagoon Power’s ambition is for half of the investment for their £1.3 billion project in Swansea to be retained within the Welsh economy. In addition to significant supply chain and employment benefits, this project could provide an international watersport centre, an Offshore Visitor Centre and the creation of new habitat, sea reefs and seabed sanctuaries.

CurrenT Status

The project is currently on hold following a UK government decision to reject a Contract for Difference (CfD) support agreement. This was despite continued support from the Welsh Government. A Tidal Lagoon Taskforce was established in 2018 to enable stakeholders to consider the full suite of options for financing and delivering
the tidal lagoon independent to Westminster. In October 2018, the taskforce concluded that the development of a tidal lagoon needs to be led by the private sector without the reliance on government or local government subsidy. A Prior Invitation Notice (PIN) was published inviting companies and investors to undertake the delivery of the development. In December 2018, 11 companies responded to the PIN expressing an interest in delivering a tidal lagoon for Swansea Bay.