Construction News reporter Jack Simpson visits the Swansea Bay site to find out more about the proposals.
The tidal power project is described as the first of its kind in the world.
Construction has been pushed back a year as the developers seek to agree a strike price with the government.
Tidal Lagoon Power is nevertheless pushing forward proposals for the scheme – the first of six planned across the UK.
Read the full feature of CN’s visit to the proposed site to find out how Swansea Bay is aiming to start an energy sector revolution.