Tidal lagoons 'could be £70bn industry'

An independent review into tidal lagoon energy in the UK has been completed - and now the UK Government will decide on whether the industry has a future, including a crucial first step in Swansea Bay.

If this form of renewable energy is supported, it could signal the dawn of a new industrial era, worth £15bn to Wales and the UK.

Those behind the new manufacturing and energy sector believe it can deliver sustainable, locally-produced electricity for about a hundred years.

Mark Shorrock, chief executive of Tidal Lagoon Power, told BBC Wales economics correspondent Sarah Dickins the technology could be exported all over the world.