Charles Hendry will publish his independent report into the viability of the renewable energy technology later, which aims to harness energy from the sea.

The project at Swansea Bay in South Wales, would consist of 90 turbines in a 14 mile breakwater, and over the next 120 years could supply energy for 1.5m homes. It ties into wider plans for the government to build six tidal lagoon power plants across the UK.