Benefits

LOW CARBON

The Hendry review says tidal lagoons can be an important low-carbon source of electricity generation for the UK. Projections suggest that 10 lagoons could provide 10% of UK electricity generation and cut carbon emissions by 36%.

GUARANTEED SUPPLY

Tidal power generation is predictable and less subject to the vagaries of weather than wind or solar energy and so has fewer concerns around intermittency.

The Swansea lagoon would produce power for about 14 hours a day. "It's proven technology, there are many such projects around the world," said Andy Field, spokesman for Tidal Lagoon Power.

LOCAL IMPACT

Supporters claim the lagoon would create 2,000 jobs and improve the local environment – cycle paths would be built on the walls and a sailing and canoeing centre would be set up inside the lagoon.